33results about How to "Enhanced power output performance" patented technology

A rechargeable battery includes an electrode assembly comprising a positive electrode that has an uncoated region that is not coated with an active material along an edge, a negative electrode that has an uncoated region that is not coated with an active material along an edge, and a separator that is placed between the positive electrode and the negative electrode. The battery further comprises current collecting plates that are joined with the uncoated regions of the positive electrode and negative electrode while covering the uncoated regions, a case for housing the electrode assembly and the current collecting plates, and a cap assembly that is coupled with the case to seal it and includes terminals that are coupled with the current collecting plates.

The invention discloses a comprehensive energy recycling system based on a liquefied natural gas automobile. An engine coolant is used as a heat source and LNG (Liquefied Natural Gas) is used as a cold source to drive a power circulator to output power; at the same time high temperature engine tail gas is used as the heat source and the environment is used as the cold source to drive another power circulator to output power; the cooling capacity of a part of the LNG in a higher temperature area is used for counteracting one part of automobile air-conditioner load so as to reduce the engine power consumption consumed for making the cooling capacity, so that due to the comprehensive energy recycling and utilization in such three aspects, the power output capability and energy utilization efficiency of an LNG automobile engine are improved, the brake ratio fuel consumption rate is reduced, and as a result, the comprehensive energy recycling system has the potential to create remarkable economic and social benefits.

The invention discloses an oil film compensation method used in fuel oil injection. The method comprises the following steps: collecting air inflow signal and crankshaft rotating speed signal; confirming basic injecting time (TIB) of an engine according to the crankshaft rotating speed signal and the air inflow signal; judging that the engine is in sharp accelerating state or sharp decelerating state according to the TIB; inquiring a marking data table of the engine to obtain fast compensation amount and slow compensation amount of an intake manifold of the engine according to the state of the engine; and acquiring the oil film compensation value in the engine oil injection process according to the fast compensation amount and slow compensation amount of the intake manifold of the engine. The method can accurately compensate the oil injection amount by precisely calculating the oil film compensation value in fuel oil injection, thus greatly improving the power output performance in acceleration and deceleration, obtaining the optimal air-fuel ratio of an automobile in accelerating or decelerating working condition, and adjusting the running performance of the automobile by changing oil injection sum.

A rechargeable battery includes an electrode assembly comprising a positive electrode that has an uncoated region that is not coated with an active material along an edge, a negative electrode that has an uncoated region that is not coated with an active material along an edge, and a separator that is placed between the positive electrode and the negative electrode. The battery further comprises current collecting plates that are joined with the uncoated regions of the positive electrode and negative electrode while covering the uncoated regions, a case for housing the electrode assembly and the current collecting plates, and a cap assembly that is coupled with the case to seal it and includes terminals that are coupled with the current collecting plates.

The invention discloses a turn-milling compound ram device which comprises a motor, a gear box, an output shaft, and mechanisms and pipelines which are connected with an accessory head. The turn-milling compound ram device is characterized in that the parts are integrated in the casing of the ram. The motor and a speed reducer are arranged in the upper end of the casing. The external gear of the output shaft is connected with the gear box. The lower opening of the gear box is connected with a comparatively short power output shaft. The maximum output power reaches 52KW; torque moment reaches 2400Nm; and rotary speed reaches 3150r / min. the power output shaft is connected with a connecting structure. A connector is provided with a centering short taper, two wedge-shaped bonding transmission torque moments and four mechanical autolocking tightening mechanisms. The ram is provided with liquid, gas and electric pipe lines on the wall of the casing. The end connector of the ram is provided with line clutches thereof. The pipe lines and mechanical parts are connected automatically with the accessory head of operating parts. The turn-milling compound ram device has a compact internal structure in the ram device, has a comparatively short output shaft, improves power output ability, and has a small volume of the ram device with the section size of 280mm long and 240mm wide. The connections between the ram and the operating equipment such as a cutter, a core milling head and so on can realize the purposes of general use and automatic connection.

The invention discloses a tractor and relates to the technical field of agricultural machine manufacture. The tractor comprises an engine, wherein an output shaft of the engine is connected with a power distributing box positioned between a front drive axle and a rear drive axle, one output shaft of the power distributing box is connected with a hydraulic pump, the hydraulic pump is connected with a hydraulic motor, and the hydraulic motor is connected with an input shaft of the front drive axle and an input shaft of the rear drive axle through a gearbox; and the other output shaft of the power distributing box is connected with a rear gearbox arranged behind the rear drive axle through a transmission shaft, and an agricultural machine tool output shaft of the rear gearbox is connected to a drive shaft of an agricultural machine tool. Compared with the prior art, the tractor disclosed by the invention can solve the problems of low working power and low production and operation efficiency of the conventional tractor.

The invention discloses a tractor, and relates to the technical field of agricultural machine manufacture. The tractor comprises an engine, wherein an output shaft of the engine is connected with a power distributing box between a front drive axle and a rear drive axle, a first output shaft of the power distributing box is connected with a first hydraulic pump, an output opening of the first hydraulic pump is communicated with an oil inlet of a first hydraulic motor through oil pipes and a first solenoid valve set, and the first hydraulic motor is connected with gear drive boxes which are mounted at both ends of an agricultural machine tool input shaft; a second output shaft of the power distributing box is connected with a second hydraulic pump, and an output opening of the second hydraulic pump is communicated with an oil inlet of a lifting cylinder of an agricultural machine tool hanging device through oil pipes and a second solenoid valve set; and a third output shaft of the power distributing box is connected with an input shaft of the front drive axle and an input shaft of the rear drive axle through a gearbox. Compared with the prior art, the tractor disclosed by the invention can solve the problems of poor power output performance and low production and operation efficiency in ploughing of the conventional tractor.

A fuel cell includes a pair of separators and a plurality of electrolyte electrode assemblies between the separators. The electrolyte electrode assemblies has a small circular disk shape. Eight electrolyte electrode assemblies are arranged along an inner circle and eight electrolyte electrode assemblies are arranged along an outer circle concentric with a circular hole. Each of the separators includes a plurality of plates stacked together. A fuel gas channel for supplying a fuel gas to anodes of the electrolyte electrode assemblies, an oxygen-containing gas channel for supplying an oxygen-containing gas to cathodes of the electrolyte electrode assemblies are formed between the plates.

The invention discloses a tractor, and relates to the technical field of agricultural machine manufacturing. The tractor comprises an engine, and an output shaft of the engine is connected with a power distribution box arranged between a front drive axle and a rear drive axle. A first output shaft of the power distribution box is connected with a first hydraulic pump, the first hydraulic pump is connected with a first hydraulic motor, and the first hydraulic motor is connected with gear transmission cases arranged at the two ends of an input shaft of an agricultural implement. A second output shaft of the power distribution box is connected with a second hydraulic pump, and the second hydraulic pump is communicated with a lifting oil cylinder of an agricultural implement suspension device through a second electromagnetic valve set. A third output shaft of the power distribution box is connected with a third hydraulic pump, the third hydraulic pump is connected with a third hydraulic motor, and the third hydraulic motor is connected with an input shaft of the front drive axle and an input shaft of the rear drive axle through a gearbox. Compared with the prior art, the tractor can solve the problems that an existing tractor is insufficient in traction force and poor in power output performance during tractor-ploughing operation.

The invention discloses an engine block set used for an engine, and the engine with the engine block set. The engine block set comprises a cylinder cover and a cylinder body. The inner wall faces of the cylinder walls of cylinders are cylindrical wall faces. The cross sections of the cylinder walls are annular. Four arc-shaped sections which are sequentially connected are arranged on each annular cross section in the circumferential direction. Each arc-shaped section is further divided into a first section, a second section and a third section. The central angle corresponding to each first section is alpha1. The wall thickness of each first section is h1. The central angle corresponding to each second section is alpha2. The wall thickness of each second section is h2. The central angle corresponding to each third section is alpha3. The wall thickness of each third section is h3. The third section of each arc-shaped section is the farthest from the longitudinal central line of the engine. The first section of each arc-shaped section is the closest to the longitudinal central line. The alpha1, the alpha2 and the alpha 3 meet the relation that the sum of the alpha1, the alpha2 and the alpha 3 is equal to 90 degrees. The h1, the h2 and the h3 meet the relation that the h1 is smaller the h2 and the h2 is smaller than or equal to the h3 or meet the relation that the h1 is smaller than or equal to the h2 and the h2 is smaller than the h3. The engine block set has the beneficial effects that the weight is light, the size is small, and the deformation problem of the cylinders can be effectively solved.

A sealed electron beam source (12) for an imaging tube (16) is provided. The beam source (12) includes a source housing (50) with a source window (54) having a first voltage potential and a source electrode (52) having a second voltage potential. The source electrode (52) generates electrons and emits the electrons through the source window (54) to a target (32) that is external to the source housing (50). A method of supplying and directing electrons on the target (32) within the imaging tube (16) is also provided. The method includes forming the source housing (50) over the source electrode (52) and sealing the source housing (50). The electrons are generated and emitted from the source electrode (52) and directed through the source window (54) to the target (32).

The invention discloses a micro-array multi-energy harvesting generator driven by wind-wind synergy, which is composed of a plurality of wind-wind synergy-driven miniature multi-energy harvesting generators arranged in an orderly manner; Friction elastic generator array, photovoltaic and piezoelectric co-driven fluorescent waveguide composite frame generator, photovoltaic cell composite wind blade generator array, intelligent controller, sensor, battery and circuit, inverter, generator shaft core, shaft core Rotating layer, multiple energy harvesting generator frame, inner rotating frame, outer rotating elastic frame, elastic support rod; photovoltaic cell composite wind blade generator array is composed of multiple photovoltaic cell composite wind blade generators distributed in the form of circular fan blades The fan-shaped array capable of rotation; the photovoltaic cell composite wind blade generator includes photovoltaic cells A and wind blades; the photovoltaic cell A is compounded on the surface of the wind blade facing the sun to form a composite structure.

The invention relates to a power machine technology, belongs to wind power output equipment, and particularly discloses an airflow-impact-accelerated rotational kinetic energy output and power generator drive device. Wind power blades annularly and uniformly distributed around the central axis parallel to a straight line, where a bearing shaft is located, of the bearing shaft are installed on the bearing shaft; the wind power blades are in transmission connection with the bearing shaft in a manner of revolution; an intake port penetrating through the wall body of a shell wall at the head end of a shell in the outer thickness direction of the shell, communicating with the inner chamber of the shell, and extending in the radial direction of the inner chamber of the shell in the shape of a straight-line segment, is formed in the shell wall, and an exhaust port penetrating through the wall body of the shell wall at the tail end of the shell in the outer thickness direction of the shell is formed in the shell wall; and a tail-end barrel port formed in the tail end of an airflow guide-in acceleration barrel communicates with the intake port, and the inner barrel diameter of the cross section perpendicular to the own length direction of the airflow guide-in acceleration barrel is correspondingly and continuously reduced towards the length direction of the airflow guide-in acceleration barrel from a head-end barrel port to the tail-end barrel port. The airflow-impact-accelerated rotational kinetic energy output and power generator drive device disclosed by the invention is more complete in structure, obviously increases power output efficiency, and further adequately extracts air kinetic energy contained in wind power.

The invention discloses a noise reduction type bidirectional output gearbox capable of achieving multi-gear variable speed adjustment. The noise reduction type bidirectional output gearbox comprises a noise reduction shell, fixed blocks, a transmission shaft, a middle fluted disc and an internal telescopic rod; an input shaft is rotatably connected to the middle position of the left side of the noise reduction shell in a penetrating mode, an input bevel gear is fixedly connected to the exterior of the input shaft; the fixed blocks are fixedly arranged on the upper side and the lower side of the interior of the noise reduction shell; the transmission shaft is arranged in the interior of a transmission ring in a penetrating mode, a steering bevel gear is fixedly arranged on the outer side face of the transmission shaft in a welded mode; the middle fluted disc is fixedly mounted on the side surfaces of a deceleration ring and a acceleration ring; and the internal telescopic rod is rotationally connected to the interior of the noise reduction shell. According to the noise reduction type bidirectional output gearbox capable of achieving multi-gear variable speed adjustment, the novel structural design is adopted, the state of output power of the gearbox can be controlled by the device according to using requirements, the diversity of power output is improved, the adjustment range of a gear adjuster in the gearbox is large, multi-gear adjustment and control over power output of the gearbox are facilitated, and the speed change effect of device connection is improved.

The invention discloses a twist emergency braking and parking brake. The twist emergency braking and parking brake comprises a support frame, friction plates and a brake drum. The two ends of each friction plate are provided with protrusions. An annular push iron is mounted in the positions, close to the protrusions of the friction plates, of the support frame. A cam shaft is embedded on the sideportion of the push iron. The position of the cam shaft making contact with the side portion of the push iron is provided with a top end cam and a body cam. The other end of the cam shaft penetrates through a rocker arm to be connected with a rotary power source. The twist emergency braking and parking brake simultaneously and synchronously drives the push iron through rotation of the top end camand the body cam on the cam shaft, so that the push iron pushes the protrusions of all the friction plates upwards to form friction braking with the brake drum through the rigidity of the push iron. Accordingly, the twist emergency braking and parking brake realizes emergency braking and parking braking, the installation space can be reduced, and the working efficiency of safety braking is improved.

The invention discloses an unloading device applied to a fork loading machine. The unloading device comprises a lifting seat, a fork portion, a holding drive mechanism, a holding mechanism, a center seat, a rotary drive mechanism, a drive gear, a rotary bearing and a front mounting plate; the holding drive mechanism is in transmission connection with the holding mechanism so as to drive the holding mechanism to move between the holding position and the holding loosening position relative to the fork portion, and the holding mechanism located at the holding position is matched with the fork portion and holds a loading box; the rotary bearing comprises an inner ring and an outer ring which can be rotatably sleeved; the outer ring is fixedly connected with the lifting seat, the inner ring is provided with an inner gear, the drive gear is engaged with the inner gear, the front mounting plate is rotatably arranged outside the center seat in a sleeving manner and fixedly connected with the inner ring, and the fork portion and the front mounting plate are fixedly connected; and the unloading device has the following beneficial effects of being convenient and rapid in unloading, and high in anti-side-turning capacity and power output capacity.

The invention discloses a motorcycle intake and exhaust control system and a motorcycle. The motorcycle intake and exhaust control system comprises an intake mechanism, an engine and an exhaust mechanism which are sequentially connected. The air intake mechanism comprises an air filter, the exhaust mechanism comprises a first exhaust pipe and a conversion exhaust assembly, the air filter, the engine, the first exhaust pipe and the conversion exhaust assembly are sequentially connected, the length of the first exhaust pipe is 250-480 mm, and the effect of reducing the emission amount of the motorcycle is achieved. In addition, a partition plate in the air filter inclines towards the rear of the motorcycle and forms an included angle alpha with the vertical plane where the center line of the motorcycle is located, a filter element inclines towards the rear of the motorcycle and forms an included angle beta with the partition plate, and the included angle between the filter element and the vertical plane where the center line of the motorcycle is located is the sum of alpha and beta, so that the air intake efficiency of the air filter is sequentially improved, and the performance of the engine is improved to make up for the performance damage influence of an exhaust mechanism on the engine. The air filter can be detached from the side of the motorcycle.

The invention discloses a hydraulic system of a drainage robot, which includes a first traveling element, an actuator, and a hydraulic pump for supplying hydraulic oil, and also includes a first electromagnetic valve connected to the hydraulic pump oil circuit; the first electromagnetic valve has The first state and the second state, when the first electromagnetic valve is in the first state, the oil outlet of the hydraulic pump communicates with the working oil port of the actuator; when the first electromagnetic valve is in the second state , the oil outlet of the hydraulic pump communicates with the working oil port of the first traveling element; the first hydraulic oil output port is connected in parallel on the connecting oil path between the first solenoid valve and the first traveling element; A second hydraulic oil output port is connected in parallel on the connecting oil circuit between the first solenoid valve and the actuator. Compared with the prior art, the hydraulic system has the effect of facilitating the connection and use of hydraulic tools by setting an external oil circuit, and has a higher overall flexibility and higher practicability.

The invention relates to an outdoor portable multifunctional spraying all-in-one machine. The outdoor portable multifunctional spraying all-in-one machine comprises a main body, a water pump module, a controller module and an internal power source are integrated in the main body, and the water pump module is provided with multiple output water pressure modes. One side of the main body is provided with a control panel, and the control panel is provided with a battery electric quantity indicating lamp, a working mode indicating lamp and a power indicating lamp so as to feed back the state of a product in real time. The control panel is further provided with a power button, a large water mode button and a small water mode button which are used for starting the machine and controlling switching of water outlet modes. The controller module is integrated on the rear side of the control panel and is responsible for internal power supply charging, water pump operation, pressure protection, temperature monitoring, heating driving, current protection, automatic switching of an external power supply and an internal power supply and man-machine interaction control. The main body is provided with a water inlet port for connecting an external water source, and a water outlet port for connecting various spraying components such as a shower head and a water gun, so that various requirements of outdoor shower, car washing, floor washing, article cleaning and the like are met.

The invention discloses a body group for an engine and an engine with the body group. The body group includes: cylinder head; cylinder block, the inner wall surface of the cylinder wall of the cylinder is a cylindrical wall surface, the cross section of the cylinder wall is ring-shaped, and the ring is divided into four arc-shaped sections connected in sequence along the circumferential direction, each arc-shaped The segment is further divided into the first segment, the second segment and the third segment. The first segment corresponds to a central angle of α1 and a wall thickness of h1, the second segment corresponds to a central angle of α2 and a wall thickness of h2, and the third segment corresponds to The central angle is α3 and the wall thickness is h3, wherein the third segment of each arc segment is farthest from the longitudinal centerline of the engine, and the first segment of each arc segment is the closest to the longitudinal centerline, where α1, α2 and α3 satisfies the relational expression: α1+α2+α3=90°; h1, h2 and h3 satisfy one of the following relational expressions: h1<h2≤h3, h1≤h2<h3. The body group of the invention has light weight and small volume, and can effectively improve the deformation problem of the cylinder.

The invention discloses an oil film compensation method used in fuel oil injection. The method comprises the following steps: collecting air inflow signal and crankshaft rotating speed signal; confirming basic injecting time (TIB) of an engine according to the crankshaft rotating speed signal and the air inflow signal; judging that the engine is in sharp accelerating state or sharp decelerating state according to the TIB; inquiring a marking data table of the engine to obtain fast compensation amount and slow compensation amount of an intake manifold of the engine according to the state of the engine; and acquiring the oil film compensation value in the engine oil injection process according to the fast compensation amount and slow compensation amount of the intake manifold of the engine.The method can accurately compensate the oil injection amount by precisely calculating the oil film compensation value in fuel oil injection, thus greatly improving the power output performance in acceleration and deceleration, obtaining the optimal air-fuel ratio of an automobile in accelerating or decelerating working condition, and adjusting the running performance of the automobile by changing oil injection sum.

The invention discloses an engine. The engine comprises a crank link mechanism, spark plugs, diesel injectors, a gasoline injector and a distribution mechanism, wherein the crank link mechanism comprises a machine body set; cylinders are arranged in a cylinder body of the machine body set; intake and exhaust ways corresponding to all the cylinders are formed in a cylinder cover of the machine body set; an upward concave structure is formed on the bottom surface part, corresponding to the cylinders, of the cylinder cover; each cylinder is correspondingly provided with one spark plug; each cylinder is correspondingly provided with one diesel injector; the distribution mechanism comprises intake valves and exhaust valves corresponding to all the cylinders; included angles between the center lines of the intake valves and vertical planes passing through the longitudinal center line of the engine are within 0-5 degrees; included angles between the center lines of the exhaust valves and the vertical planes are 0-5 degrees; and a compression ratio is 13-17. The engine can obtain a better combustion effect through reasonably controlling the compression ratio and the valve setting angles, and facilitates to improve the combustion efficiency, the power output performance and the fuel economy.

The invention discloses a comprehensive energy recycling system based on a liquefied natural gas automobile. An engine coolant is used as a heat source and LNG (Liquefied Natural Gas) is used as a cold source to drive a power circulator to output power; at the same time high temperature engine tail gas is used as the heat source and the environment is used as the cold source to drive another power circulator to output power; the cooling capacity of a part of the LNG in a higher temperature area is used for counteracting one part of automobile air-conditioner load so as to reduce the engine power consumption consumed for making the cooling capacity, so that due to the comprehensive energy recycling and utilization in such three aspects, the power output capability and energy utilization efficiency of an LNG automobile engine are improved, the brake ratio fuel consumption rate is reduced, and as a result, the comprehensive energy recycling system has the potential to create remarkable economic and social benefits.

The invention discloses a variable weight superposition type overmodulation method for an electric vehicle motor controller, which belongs to the field of modulation technology, and comprises the steps of using a magnetic field orientation method to calculate and obtain the modulation coefficient; and obtaining the initial value of the superposition weight factor; according to the target voltage vector , calculate and obtain the phase angle of the target voltage vector in the stationary coordinate system; perform optimization calculations to obtain the optimal value of the stacking weight factor; calculate and obtain the weighted components for stacking according to the phase angle of the target voltage vector in the stationary coordinate system, and obtain the reference Voltage vector: According to the reference voltage vector and the space vector pulse width modulation method, the switching control signal of the inverter is calculated and obtained. The invention optimizes and calculates the superposition weight factor according to the target voltage vector phase angle, effectively reduces the harmonic distortion rate of the motor phase current and the torque ripple of the drive system, and improves the power output performance of the electric vehicle and the comfort of drivers and passengers.

The invention discloses a variable weight superposition type overmodulation method for an electric vehicle motor controller and belongs to the technical field of modulation. The method comprises the following steps of: calculating to obtain a modulation coefficient by adopting a magnetic field orientation method; obtaining an initial value of a superposition weight factor; according to a target voltage vector, calculating to obtain a phase angle of the target voltage vector in a static coordinate system; carrying out optimization calculation to obtain a superposition weight factor optimization value; according to the phase angle of the target voltage vector under the static coordinate system, calculating to obtain a weighted component used for superposition, and obtain a reference voltage vector; and according to the reference voltage vector and a space vector pulse width modulation method, calculating to obtain a switching control signal of an inverter. According to the method, the superposition weight factor is optimized and calculated according to the phase angle of the target voltage vector, so that the phase current harmonic distortion rate of a motor and the torque ripple of a driving system are effectively reduced, and the power output performance of an electric vehicle and the comfort of a driver and passengers are improved.

The invention discloses an unloading device applied to a fork loading machine. The unloading device comprises a lifting seat, a fork portion, a holding drive mechanism, a holding mechanism, a center seat, a rotary drive mechanism, a drive gear, a rotary bearing and a front mounting plate; the holding drive mechanism is in transmission connection with the holding mechanism so as to drive the holding mechanism to move between the holding position and the holding loosening position relative to the fork portion, and the holding mechanism located at the holding position is matched with the fork portion and holds a loading box; the rotary bearing comprises an inner ring and an outer ring which can be rotatably sleeved; the outer ring is fixedly connected with the lifting seat, the inner ring is provided with an inner gear, the drive gear is engaged with the inner gear, the front mounting plate is rotatably arranged outside the center seat in a sleeving manner and fixedly connected with the inner ring, and the fork portion and the front mounting plate are fixedly connected; and the unloading device has the following beneficial effects of being convenient and rapid in unloading, and high in anti-side-turning capacity and power output capacity.

An intake / outlet pipe optimization method for a rotary engine, comprising the steps of: (A) providing a rotary engine; (B) providing a simulation software package, to perform a series of simulations for the rotary engine according to different combinations of a pipe length, a pipe diameter, a pipe shape and a pipe angle, to determine an optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle, to obtain an optimal power output for the rotary engine; and (C) performing tests for the rotary engine, by utilizing the optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle obtained in step (B), to obtain a test optimized power output for the rotary engine.

The invention discloses an engine and a vehicle with the same. The engine comprises a crank connection rod mechanism, sparking plugs, diesel sprayers, gasoline sprayers and a gas distribution mechanism. The crank connection rod mechanism comprises an engine block set, a piston connection rod set and a crankshaft flywheel set. At least one cylinder is arranged in a cylinder body of the engine block set. Gas inlet ways corresponding to the cylinders respectively and exhaust ways corresponding to the cylinders respectively are formed in a cylinder cover of the engine block set. At least one sparking plug is correspondingly arranged on each cylinder. At least one diesel sprayer is correspondingly arranged on each cylinder. The gas distribution mechanism comprises inlet valves and exhaust valves. Each inlet valve and the corresponding exhaust valve are used for opening or closing a corresponding combustion chamber. The swirl rate of the combustion chambers ranges from 1 to 6. The compression ration of the combustion chambers ranges from 13 to 17. According to the engine, by reasonably controlling the compression ratio and the swirl rate, a good combustion effect can be achieved, and the combustion efficiency, the power output performance and the fuel economy of the engine can be easily improved.