49results about How to "Improve oil supply efficiency" patented technology

The invention discloses a CF common rail system. The CF common rail system comprises an oil tank, a pump and rail integrated type common rail oil supplying pump, an ECU and at least one oil injector.An oil inlet of an oil delivering pump in the pump and rail integrated type common rail oil supplying pump communicates with the oil tank through an oil pipe. An outlet of a pressure stabilizing valvepart in the pump and rail integrated type common rail oil supplying pump communicates with the oil tank through an oil pipe. At least one oil outlet joint on a pressure accumulator in the pump and rail integrated type common rail oil supplying pump is connected with an oil inlet pipe joint on the at least one oil injector through a high-pressure oil distributing pipe. A pressure transducer in thepump and rail integrated type common rail oil supplying pump is in signal connection with the ECU. The ECU is further in control connection with an electromagnet in an electromagnetic valve part in the pump and rail integrated type common rail oil supplying pump and electromagnets in the oil injectors. The ECU controls the energized state of the electromagnet in the electromagnetic valve part inthe pump and rail integrated type common rail oil supplying pump so as to control the working state of the pump and rail integrated type common rail oil supplying pump. The oil injectors control the oil injecting time, pre-injecting and / or post-injecting through the ECU, so that needs of an engine are met accurately.

The invention discloses a lubricating method for gears, comprising a oil-absorbing pump, a radial oil hole gear, a sealing ring and a concentrated oil guiding hole. The oil-absorbing pump is a screw pump or a spiral pump. The screw of the oil-absorbing pump and the gear has a same rotating shaft component. The sealing ring is arranged with radial holes with same quantity of the holes on the radial oil hole gear in a relevant static state; the radial hole are aimed; one radial oil hole on the sealing ring is relevantly static with the pump body of the oil-absorbing pump; the radial oil hole on the sealing ring is aimed at the concentrated oil guiding hole. The radial oil hole gear is the gear passing to every component along the radial direction. The concentrated oil guiding hole is arranged on the pump body of the oil-absorbing pump facing the gear meshing area. The oil-absorbing pump delivers the lubricating oil to the concentrated oil guiding hole and enters the sealing ring oil hole and the radial oil hole and enters the gear root part of the meshing position and the surface area of two gear profiles of the gears to achieve the gear lubrication. The invention can solve oil lacking phenomenon of gear pair without any additional power; the oil offering rat is high with an advantage of enhancing loading capacity.

The invention discloses an electric grease lubrication pump. The electric grease lubrication pump comprises an oil storage barrel, a motor, a pump body, a threaded cartridge valve, an unloading valve, reduction gearboxes, an oil inlet pipe, an oil inlet cavity, a filtering cylinder, an oil pressing device and a transmission belt device, wherein a pump body is fixedly arranged at the bottom of the oil storage barrel, the motor is arranged on one side of the oil storage barrel, and two reduction gearboxes are symmetrically installed at the bottom of the motor, and the oil pressing device is arranged at the position, located at an oil outlet, of the inner bottom end of the oil storage barrel, and the reduction gearboxes at one side of the bottom of the motor is in transmission connection with the pump body. The whole structure of the grease lubrication pump is reasonable in structure, the filtering device is directly installed inside the oil inlet cavity through the filtering cylinder, so that the filtering structure is simplified, and the installation space is saved, meanwhile, outer shells of the oil storage barrel and the pump body are integrally formed and fixed, the traditional separation and matching type installation are changed, and the sealing degree is improved, so that long-time use is avoided; and oil impregnate and oil leakage faults are avoided from the connection positions of the oil storage barrel and the pump body.

A highly effective cooling highly-reinforced diesel engine piston is provided with an annular oil cavity on lower portion of a burning chamber in the piston, wherein the position of the oil cavity relative to an oil inlet is provided with a distribution boss along the radial direction of the piston, and a projection line in the ridge center of the distribution boss relative to the top plate of the piston is positioned in the projection area in the top plate of the piston. The projection line has a bias value of 0-3mm as deviating to the oil inlet center, and the height of the boss is 1 / 8-3 / 4 of the height of the oil cavity, and two sides of the boss cross-section is a sloping line or an arcuate path, or a parabolic curve. The invention is used in the diesel engine with average effective pressure higher than 1. 3MPa and can enhance the oil-supplying efficiency of fluid oil efficiently, and also can control the oil flow distribution in two side oil cavities efficiently as the center of the burning chamber no reclosing with the center of the piston, thereby cooling the piston evenly and enhancing the cooling effect.

The invention relates to an in-cylinder direct-spray high-pressure pump. The in-cylinder direct-spray high-pressure pump comprises a pump body, wherein an oil inlet and an oil outlet are formed in thepump body; a stable-pressure cavity, a low-pressure cavity, a high-pressure cavity, a first connecting oil path and a second connecting oil path are arranged in the pump body; the oil inlet communicates with the first connecting oil path through the stable-pressure cavity; the first connecting oil path communicates with the second connecting oil path through the low-pressure cavity and the high-pressure cavity in sequence; the second connecting oil path communicates with the oil outlet; a solenoid valve is arranged in the low-pressure cavity; a plunger piston device is arranged in the high-pressure cavity; the oil outlet is equipped with a pressure release valve; the pressure release cavity communicates with the low-pressure cavity or the high-pressure cavity; the pressure release valve comprises a sealing base with a through hole therein, a stud and a ball body arranged between the sealing base and the stud; the ball body and the sealing base can be connected in a sealing mode; the ball body is linked and matched with the stud; and a pressure release valve spring is arranged between the stud and the inner wall of the pressure release cavity. The pressure release valve structure is changed into spherical surface seal from plane seal, so that sealing effect is good, a sealing form is more stable, the closing effect is quicker, and oil supply efficiency of the high-pressure pumpis improved.

The invention discloses an engine valve rocker arm installation structure, comprising an engine cylinder head and a rocker shaft, the rocker shaft is rotatably arranged on the engine cylinder head, and the rocker shaft has a function for receiving The annular oil groove of the lubricating oil of the cover, the oil inlet hole communicated with the annular oil groove, the axial oil channel communicated with the oil inlet hole, and the first part communicated with the axial oil channel and used to guide the lubricating oil to the first rocker arm installation area An oil outlet hole and a second oil outlet hole communicated with the axial oil passage and used to guide lubricating oil to the second rocker arm installation area, the annular oil groove is located between the first oil outlet hole and the second oil outlet hole, the shaft The oil passage extends axially along the rocker arm shaft, and the first rocker arm installation area and the second rocker arm installation area are used to respectively install a valve rocker arm. The installation structure of the engine valve rocker arm of the present invention satisfies the condition of forming an oil film between the rocker arm shaft and the valve rocker arm, can effectively reduce wear between the rocker arm shaft and the valve rocker arm, and can significantly improve the oil supply efficiency.

The invention discloses an energy-saving diesel engine having a multistage variable oil-supply transmission ratio and multiple running modes. The energy-saving diesel engine comprises a high-pressure oil pump, a diesel engine body and an oil tank, the high-pressure oil pump is of a double-oil-cylinder structure, the diesel engine body is of a double-piston-cylinder structure, two piston cylinders are respectively communicated with two oil cylinders correspondingly through electric-control oil injectors, plungers of the two oil cylinders correspondingly contact with two cams on a cam shaft respectively through pushing rods, pistons of the two piston cylinders are correspondingly connected with two connecting rod drivers on a crankshaft respectively through connecting rods, an oil supply speed-variable transmission mechanism is arranged between the cam shaft and the crankshaft, and the two electric-control oil injectors are communicated with a pressure-storage energy storing tank respectively through electric-control one-way valves. The multistage variable oil-supply transmission ratio can be automatically adjusted according to rotating speed of the diesel engine, low-speed oil-supply efficiency and stability can be improved, and high-speed oil-supply energy waste can be reduced; the multiple running modes can be started according to road conditions, so that fuel consumption of the diesel engine can be reduced, and emission pollution can be lowered.

The invention relates to an oil supply device and especially relates to an oil pressure valve for an annular loop. The oil pressure valve for the annular loop comprises an oil pump, an oil inlet one-way valve, an oil outlet one-way valve, an annular oil pipe and an umbrella-shaped oil-melting block, wherein the oil pump is communicated with the annular oil pipe; an oil inlet end of the oil inlet one-way valve is communicated with the annular oil pipe; the oil outlet one-way valve is communicated with the annular oil pipe; the umbrella-shaped oil-melting block is arranged in the annular oil pipe. The umbrella-shaped oil-melting block in the oil pressure valve for the annular loop provided by the invention can form a loop in the oil pressure valve and can move forward in the pipeline along one direction. An umbrella-shaped cover of the umbrella-shaped oil-melting block is utilized to scrape an inner wall of the annular oil pipe, so that the forming of an oily wall on the inner wall of the annular oil pipe is reduced and the oil supply efficiency is increased.

The invention discloses an engineering vehicle hydraulic pump valve integrated system. The engineering vehicle hydraulic pump valve integrated system comprises a pump valve rear body which is formed in an integral-cast mode and is provided with a gear pump and a reversing valve body, the reversing valve body of the pump valve rear body is connected with an air cylinder body and is provided with a central spindle which can penetrate through the interior of the reversing valve body and the interior of the air cylinder body in a sliding mode, and the reversing valve body and the central spindle are arranged in a dynamic seal mode nearby the adjacent position of the air cylinder body and the pump valve rear body; oil inlet and oil returning openings are formed in the pump valve rear body, the oil inlet and oil returning openings are communicated to the reversing valve body through an oil returning channel, the oil inlet and oil returning openings simultaneously pass through the gear pump and are communicated to the reversing valve body through an internally-arranged oil inlet channel, the two channels and oil outlets formed in the pump valve rear body are respectively communicated to different cavities in the reversing valve body, the different cavities are combined with the position of the central spindle to form an inlet and outlet oil returning way of the integrated system, and an overflow valve is arranged on the internally-arranged oil inlet channel in a communicated mode. A hydraulic element and a control circuit are optimized, the oil supply efficiency is improved, the system pressure is reduced, and the service life is prolonged.

The invention discloses a multi-one-way-valve combined energy-saving reciprocating oil supply device capable of achieving self-adaptation in-advance mutual starting. The multi-one-way-valve combined energy-saving reciprocating oil supply device capable of achieving self-adaptation in-advance mutual starting comprises an oil supply device body and an electrical control system. The oil supply devicebody comprises an oil tank, a filter, a reciprocating oil supply pump and an electric control oil atomizer. The reciprocating oil supply pump is composed of a piston rod, a piston and an oil supply cavity. The oil supply cavity is divided into a left oil supply cavity body A and a right oil supply cavity body B through the piston. The left oil supply cavity body A is provided with an oil supply loop ac, the right oil supply cavity body B is provided with an oil supply loop bd, the lower ends of the two oil supply loops are connected with the oil tank, the upper ends of the two oil supply loops are connected with a pressure stabilizer, and the right end of the pressure stabilizer is provided with a flow limiting valve and the electric control oil atomizer, and the flow limiting valve and the electric control oil atomizer are connected with a controller through lines. The multi-one-way-valve combined energy-saving reciprocating oil supply device capable of achieving self-adaptation in-advance mutual starting is simple in structure, capable of saving energy, reliable and capable of achieving the function of self-adaptation in-advance mutual starting, the requirement of multiple workconditions of an engine for the oil supply amount is met, good economic benefits are achieved, and the application range is wide.

The invention discloses a compressor. The compressor comprises a shell, a compression mechanism with an illumination oil passage, a motor assembly and an oil feeding mechanism. An oil pool is arranged in the shell. The compression mechanism is arranged in the shell and comprises at least one air cylinder, a crankshaft, a piston and a sliding piece, wherein the piston is arranged on an eccentric portion of the crankshaft in a sleeving mode and located in an air cylinder cavity of the air cylinder, and the sliding piece is arranged in a sliding piece groove of the air cylinder in a reciprocating mode. The motor assembly is arranged in the shell and connected with the crankshaft. The oil feeding mechanism is arranged in the shell and defines a first oil feeding cavity and a second oil feeding cavity, the second oil feeding cavity communicates with the lubricating oil passage, and the oil feeding mechanism is configured to enable the first oil feeding cavity and the second oil feeding cavity to communicate with the oil pool in a switching mode. According to the compressor, the oil sucking process of sucking oil from the oil pool and the oil supply process of supplying oil to the lubricating oil passage do not interfere with each other, the oil sucking and oil supply power is sufficient, and the lubricating effect is good.

A spiral rod oil distribution energy storage plunger pump belongs to hydraulic pumps. A spindle box body of the plunger pump is connected with a plunger pump box body, and a driving bevel gear and a cam are installed on a spindle in the spindle box body. A plunger is installed in a plunger pump cavity of the plunger box body, a sliding wheel is arranged at the top of the plunger, a spring is installed in the middle of the plunger, and a cylinder sleeve is connected onto a plunger cavity body at the lower portion of the plunger. A driven bevel gear, a flange, screw rod bearings, an upper gasket, an oil seal and a lower gasket are sequentially connected onto a spiral rod, the spiral rod bearings are connected to the bottom of the screw rod and to the position between the upper gasket and the flange, and a spiral rod cavity screw is connected to the bottom of the spiral rod cavity. An input one-way valve spring is arranged on an input one-way valve, an output one-way valve is installed at the lower half portion of the plunger box body, a sliding plug and a sliding plug spring are installed in an energy storage safety valve, a pressure regulating hollow screw is installed at the top of the energy storage safety valve, and a normal work liquid outlet and a hyperpressure liquid outlet are arranged on the energy storage safety valve. The spiral rod oil distribution energy storage plunger pump has the advantages that a fly wheel is installed on a shaft head of a power machine, acting can be achieved by means of inertia kinetic energy of the fly wheel, and energy is saved.