137results about How to "Increase the speed ratio" patented technology

A device configured for the production of hydrokinetic energy that allows the efficient capture of energy from fluid in motion, especially slow flowing fluids. The device features an innovative structural design and drive train system as well as redundancy, which allows the device to be deployed in position, placed in service and maintained over its lifetime through the use of remotely operated vehicles. The device features one or more turbines, each turbine having an open center tube. The device features a buoyancy system including a plurality of thin walled modular buoyancy chambers with a redundant (re)pressurization system and remotely operated vehicle replaceable bladder modules. Structure cavities of the device are capable of storing energy via processed energy storage liquids such as hydrogen or via gas compression in tanks and then exporting the stored energy or reconverting the stored energy into electricity.

An automotive air blower, in particular a supercharger, comprises an air pump, such as an air impeller (2) connected to the output shaft (4) of a transmission system, the input shaft of which is connected, in use, to the engine of a motor vehicle. The input and output shafts (6, 4) are connected to respective branches of a three-branch epicyclic differential gearset. The third branch of the gearset and the input shaft (6) are connected to the rotor (20, 22) of respective electrical machines, the electrical connections of the stators (24, 26) of which machines are connected together via a controller (27) arranged to control the flow of electric power between them.

A driving force control system for a vehicle having a mechanism for changing an engine speed continuously. The driving force control system basically controls said mechanism in a manner such that the engine speed is adjusted to optimize fuel economy. The driving force control system is configured to determine an index representing a demand to enhance agility of behavior of the vehicle based on an actual behavior of the vehicle or an amount of operation carried out by a driver to cause said behavior. An upper limit value of the engine speed of the case in which a drive demand is increased is determined on the basis of the index, and the upper limit value is set to the higher value with an increase in the index representing the demand to enhance agility of behavior of the vehicle.

A document shredder is provided with a transport system that holds and transports paper, and a shredding system that shreds the paper while rotating at a circumferential speed higher than a transporting speed of the transport system, wherein, a part of elements constituting the transport system is in common with a part of elements constituting the shredding system and a point of action of the transport system is placed substantially at the same position as a point of action of the shredding system, with respect to a paper transporting direction, and alternatively, the shredding system is arranged successively from the transport system. Since this shredder is assembled in such a manner that a part of elements constituting the transport system to hold and transport the paper is in common with a part of elements constituting the shredding system, it is possible to be downsized. Furthermore, since the points of action are provided independently from the transport system, it is possible to enlarge the speed ratio between the paper transporting speed and the rotating speed of the shredding blade, whereby the paper entirely up to the end can be shredded with reliability, by only onetime passing of the paper.

A supercharger for boosting intake manifold pressure in an internal combustion engine and producing electrical energy comprises an input shaft (3), a electric machine (50) including a stator (51) and a rotor (53), a compressor (70) including an impeller (71), and a planetary transmission (30) located between the input shaft (3) and the rotor (53) of the electric machine (50) and the impeller (71) of the compressor (70), all such that the input shaft 3 can drive both the impeller (71) and the rotor (53), or the rotor (53) and input shaft (3) can drive the impeller (71). The planetary transmission (30) includes an outer ring (31) operatively coupled to the input shaft (3), a sun member (39) operatively coupled to the impeller (71), planetary clusters (38) located between the outer ring (31) and sun member (39), and a carrier (37) operatively coupled to the planet clusters (38) and the rotor (53). Each planetary cluster (38) comprises an inner roller (35) and an outer roller (33).

Fine adjustment of the rotation speed ratio or intentional control of the rotation speed ratio is carried out, centered on a desired speed ratio, including 1:1, for the rotation speed ratio between an input shaft and an output shaft. A planetary-roller speed-increasing mechanism whose input shaft is a carrier and whose output shaft is a sun roller, a planetary-roller speed-reduction mechanism whose input shaft is a sun roller and whose output shaft is a carrier, and a worm speed-changing mechanism for rotationally driving a roller ring in contact with planetary rollers of the planetary-roller speed reduction mechanism are provided in a housing. The output shaft of the planetary-roller speed-increasing mechanism and the input shaft of the planetary-roller speed-reduction mechanism are linked.

The invention discloses a hydraulically driven three-dimensional parking garage with a gear pair amplification mechanism. It includes the main frame composed of columns, crossbeams and longitudinal beams, the upper vehicle plate that can be lifted and moved horizontally, the lower vehicle plate that can move horizontally on the lower guide rail, and the hydraulic cylinder is fixedly installed on the left longitudinal beam. The beams are arranged in parallel, the top of the piston rod of the hydraulic cylinder is connected with a rack, the roller seat is installed on the left longitudinal beam, and the roller seat is connected with a gear shaft for rotation, the gear on the gear shaft meshes with the rack, and the gear shaft on the A reel is arranged coaxially, and the diameter of the reel is larger than the pitch circle diameter of the gear, so the action distance of the piston rod of the hydraulic cylinder is enlarged, and the lifting speed of the upper vehicle plate is improved. The reel is connected with the upper vehicle board through a rope suspension device. Compared with the three-dimensional parking garage that adopts the stroke amplification mechanism composed of movable pulley and fixed pulley, the present invention has the characteristics of simple structure, fast running speed, low noise and safe and reliable performance.

A combined device for power generation and illumination mounted on the wheel axle of a bicycle, particularly a power generator of a bicycle combined with a lamp provides two or three other functions in addition to supplying a power source. The device is a standalone device hung on or installed at an external end of the bicycle wheel axle. Unlike a traditional way of rubbing with a tire, or a traditional hub type power generator, the combined power generation and light device has the features and advantages of an easily installation, a high efficiency, a low resistance, a low cost, a low failure rate, an integrated structure, a hidden electric wire and an adjustable angle.

A vehicle control system is provided. The vehicle control system is applied to a vehicle having a clutch device to selectively connect and disconnect a power transmission route between a prime mover and drive wheels, and configured to disconnect the power transmission route during running to allow the vehicle to coast. The vehicle control system is comprised of: a means that detects a vehicle speed; a means that detects an operation of an accelerator by a driver; an execution means that executes a coasting control when an operating amount of an accelerator is reduced to be smaller than a predetermined value during running, by bringing the clutch device into disengagement to disconnect the power transmission route so as to allow the vehicle to coast; an estimation means that estimates a decelerating demand of the driver during execution of the coasting control; and a returning means that terminates the coasting control by bringing the clutch device into engagement to connect the power transmission route, and that increases a speed ratio of the automatic transmission when the decelerating demand is expected to increase.

A single mode, compound-split transmission is provided having two mechanical power paths. One mechanical path is primarily active at low speed ratios with the other path being primarily active in high speed ratios. A reduction ratio is available in the path employed for high speed ratios, reducing electrical path power requirements. Additionally, the reduction ratio, allows both of two motor / generators to be of a relatively low torque design.

A control device for an automatic transmission configured with a command output portion that outputs a command that causes an electric pump to be driven so that oil pressure generated by the mechanical pump and the electric pump becomes greater than or equal to a needed oil pressure for a speed change mechanism when the oil pressure generated by the mechanical pump is smaller than the needed oil pressure. A determination portion determines whether or not a predetermined heat generation condition is met when the command is output by the command output portion. A shift control portion that, in a case where the determination portion has determined that the heat generation condition is met, performs a shift control of causing the speed ratio of the speed change mechanism to become higher than the speed ratio occurring when the determination portion determines that the heat generation condition is met.

The invention relates to a gear eccentric cycloidal roller pin reduction gear, in particular to a reduction gear with the combination of a gear change structure and an eccentric cycloidal roller pin gear change structure. A composite 2-level reduction gear with the combination of a planetary gear structure and an eccentric roller pin structure is designed. The reduction gear is composed of an input part, a speed reduction part and an output part. The reduction gear is characterized in that a spur gear planetary mechanism without an outer gear ring is used for first level speed reduction, a sun gear on the input shaft drives three planetary gears to be used for achieving first level speed reduction, a pair of double-eccentric structure which is misplaced by 180 degrees is arranged on the three planetary gears, and two bearings, namely rotating arms, are arranged on each segment of eccentric cylinders to be used for driving two cycloidal gears to rotate. The reduction gear has the advantages of being high in reduction ratio and high in efficiency, the single-level transmission can reach the reduction ratio of 1:3, the efficiency reaches 90%, and if multi-level transmission is adopted, the reduction ration will be greater.

The shift control apparatus for a continuously-variable transmission includes; a primary pulley; a secondary pulley connected with the primary pulley by a belt; a shift actuator adapted to vary a speed ratio; a line pressure adjusting section configured to adjust a line pressure; a secondary-pressure adjusting section configured to adjust a secondary pressure; and a control section configured to control the shift actuator, the line pressure adjusting section, and the secondary-pressure adjusting section. Moreover, the control section includes a fail determining section configured to determine whether the shift actuator is under a failed condition. The control section is configured to carry out a fail-safe shift-actuator fixing control to fix the shift actuator, when the fail determining section determines that the shift actuator is under the failed condition, and is configured to carry out a fail-safe hydraulic control to bring the line pressure to its upper limit pressure and bring the secondary pressure to its maximum pressure, when a control-start criterion predetermined to secure driving performance of the vehicle is satisfied under the failed condition.

The invention relates to a wheel side motor driving system and a wheel side motor driving axle. The wheel side motor driving system comprises a main speed reducer assembly (4), a wheel side speed reducer assembly (6) and a hub assembly (5). The main speed reducer assembly comprises an output gear (16); the wheel side speed reducer assembly comprises a sun wheel shaft (12), a planet wheel (18), a wheel reduction shell (22) and a planet frame (31); the output gear of the main speed reducer assembly is connected with the sun wheel shaft in a power transmission manner, and the sun wheel shaft is meshed with the planet wheel; the planet wheel is arranged on the planet frame in a power transmission manner, and the planet frame is arranged in the wheel reduction shell in a power transmission manner; the wheel reduction shell is connected with the hub assembly in a power transmission manner; and the wheel side motor driving axle comprises the wheel side motor driving system. Compared with the prior art, the wheel side motor driving system and the wheel side motor driving axle have the advantage that rim space is effectively utilized, and the speed ratio is increased.

Disclosed are a concentrate of fine ceria particles for chemical mechanical polishing, and a method of preparing the same. The method includes reacting a reactant mixture comprising i) water, ii) an aqueous solution of water-soluble cerium salt compound, and iii) ammonia or ammonium salt at a reaction temperature of 250-700 ? under a reaction pressure of 180-550 bar for 0.01 sec to 10 min in a continuous reactor to obtain a solution containing the fine ceria particles, the cerium salt compound being contained at an amount of 0.01 to 20 wt % in the reactant mixture; and concentrating the solution containing the fine ceria particles in a concentrator having a filter with a pore size of 0.01 to 10 ?. The concentrate is advantageous in that a CMP slurry and a dispersing solution are easily produced by diluting the concentrate and adding an additive to the concentrate.

The invention relates to an agricultural seeding device, in particular to a suction type precision seed bunch planting device. The suction type precision seed bunch planting device mainly comprises a seed tank (26), a suction type seed sorter, a roller, a negative pressure air suction pipe (6), a speed shifting mechanism and a seed receiving and delivering device, wherein the suction type seed sorter is arranged in the roller and communicated with the negative pressure air suction pipe (6); a seed delivering box (47) is arranged between a seed outlet of the suction type seed sorter and a duck nozzle (42); a main shaft (4) of the roller is a hollow pipe; a main shaft (9) of the suction type seed sorter is arranged in the hollow pipe-shaped main shaft (4) of the roller; one end of the main shaft (9) of the suction type seed sorter is coupled to the suction type seed sorter through a bearing (8.1) and drives a seed suction disk (33), and the other end of the main shaft (9) of the suction type seed sorter passes through a sealing bearing (8) in the main shaft (4) of the roller; the main shaft (4) of the roller and the main shaft (9) of the suction type seed sorter are in speed-shifting connection through a gear or a chain or a notched belt. The suction type precision seed bunch planting device has the advantages of increasing the inner space of the roller as much as possible, increasing the height of the seed delivering box simultaneously, conveniently regulating the rotating speed ratio of the roller to the seed absorption box according to the agronomic requirements, and greatly improving the seeding speed while seeding accurately. Due to the unique transmission structure, the suction type precision seed bunch planting device is compact and steady, and the fault rate is reduced obviously under the environment of worse working condition.

The powertrain includes an arrangement of three single planetary gearsets to form six operational elements, among which a first operational element that always operates as an input element. A second operational element selectively operates as an input element and a stationary element. A third operational element selectively operates as an input element. A fourth operational element selectively operates as a stationary element. A fifth operational element always operates as an output element. A sixth operational element selectively operates as a stationary element.

The invention discloses an embedded PMSM for a turning-type electric main shaft. The embedded PMSM comprises a rotation shaft, a front bearing, a front end cover, a rear bearing, a rear end cover, a photoelectric encoder, a rotor and a stator. The rotor is of a sectional type inclined pole structure and comprises multiple rotor iron cores which are axially distributed at intervals, a multicolor magnetic pole circumferentially arranged along the rotor iron cores, and each stage of the magnetic pole is arranged in a V-shaped structure and is embedded in a corresponding permanent magnet groove; multiple magnet through holes are correspondingly arranged between each stage of the magnetic pole and the outer circumference of the rotor iron cores; and the stator comprises a cooling pipeline groove disposed in the outer wall of the stator, a stator iron core with multiple stator teeth, and a stator groove formed between adjacent stator teeth. The embedded PMSM provided by the invention has the advantages of high torque density, high power density, rapid response, small air gap magnetic field harmonic waves, high counterelectromotive force sine degree, small torque ripples and wide speed ratio, thereby being suitable for application in a turning-type electric main shaft system for a high-grade numerical control machine tool.

A variable speed compressor system (A) incorporating an electric power generation capability by combining a variable-speed compressor assembly (70) with an electric motor assembly (50) via a drive subassembly (30) in a compact unit regulated by a control system (400). The control system (400) facilitates fully controllable boost-on-demand forced-air induction operation across an entire engine speed range, and offers intelligent electric power generation.

This invention relates to a control device for a vehicular power transmitting device. The control device has shifting-point altering means 108 operative such that when a second electric motor M2 is operated with priority to obtain a charging efficiency and / or electric power generating efficiency, a shifting point for a vehicle to run under a decelerating state (during a coast running state) is altered to a point on a higher vehicle speed than that at which a shifting point for a running-performance-conscious state is set. Therefore, when the second electric motor M2 is operated with priority for generating electric power, a downshift is initiated at a high vehicle speed than that at which the downshift is initiated at a shifting point for a running-performance-conscious state. This increases a rotation speed NM2 of the second electric motor M2, resulting in an increase in regeneration amount (electric power generation amount) of the second electric motor M2.

The invention relates to a wheel rim motor driving system and a wheel rim motor driving axle. The wheel rim motor driving system comprises a driving motor assembly (2) and a main reducer assembly (4), wherein the main reducer assembly (4) comprises a driving gear, at least two intermediate gear shaft assemblies and an output gear (16); each intermediate gear shaft assembly is provided with a driving intermediate gear and a driven intermediate gear that are connected in a jointly rotating manner; a motor output shaft of the driving motor assembly (2) is connected with a driving gear (13); the driving gear (13) is engaged with each driving intermediate gear in each intermediate gear shaft assembly; each driven intermediate gear in each intermediate gear shaft assembly is engaged with the output gear (16); and the driving gear (13) and the output gear (16) are arranged eccentrically. The wheel rim motor driving axle comprises the wheel rim motor driving system. The wheel rim motor driving system and the wheel rim motor driving axle have the advantages of high motor power, large torque and large middle passage width.

A vehicle control apparatus and method that control a vehicle equipped with a driving source and an automatic transmission connected to the driving source are provided. The vehicle control apparatus and method increase a driving force by at least one of the increase in output from the driving source and the increase in a speed ratio of the automatic transmission, when the vehicle is traveling. The vehicle control apparatus and method detects a request for passing a lead vehicle, and performs a limit control when the request for passing the lead vehicle is detected. The limit control reduces a proportion of the driving force increased by the increase in the speed ratio of the automatic transmission to the driving force increased by the increase in the output from the driving source.

A self-driving vehicle including an actuator used for traveling, a communication unit receiving disaster information and a microprocessor. The microprocessor is configured to perform controlling the actuator so as to evacuate the self-driving vehicle to a predetermined place when the disaster information is received by the communication unit, the actuator includes a shift actuator changing a speed ratio of a transmission. The microprocessor is configured to perform the controlling including controlling the shift actuator so as to increase the speed ratio of the transmission when the disaster information is received by the communication unit.

A multi-speed transmission offers seven forward speed ratios with a pleasing ratio step progression, with the seventh forward speed ratio offering a relatively large percentage of the ratio spread, relatively low pinion speeds and only light torque loading on gear members carrying torque in the seventh forward speed ratio due to a brake-type torque transmitting mechanism engaged in the seventh forward speed ratio.

The invention relates to a double moduli high-accurate planet reducing mechanism. At present no high-accurate planet reducing mechanism is high in precision, compact in structure, small in meshing clearance and strong in bearing capability. The double moduli high-accurate planet reducing mechanism is characterized by comprising an output shaft, an output shaft oil sealing, a secondary gear ring shell body, a plurality of secondary planet gears, a primary gear ring shell body, an intermediate planet carrier, a plurality of primary planet gears, a primary sun gear, a coupling bearing, a simple-clamp type locking ring, a rear cover, a secondary sun gear, bearings, a coupling and a secondary planet carrier. The output shaft is installed inside a secondary gear case shell body through a front bearing, the secondary planet carrier is fixed at one end of the output shaft, the secondary planet gears are all installed on the secondary planet carrier, the secondary sun gear is installed in a secondary sun gear cavity of the secondary planet carrier, the primary planet gears are meshed with the primary gear ring, and the primary planet gears are all meshed with the primary sun gear. The double moduli high-accurate planet reducing mechanism is compact in structure, small in back lash, and high in concentric degree and repeated location.