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Patent Searching and Data


Matches 701 - 750 out of 2,300

Document Document Title
JP2008208822A
To achieve miniaturization and weight reduction by providing a control piston in parallel with a cylinder block and shortening the length in the axial direction, by securing the strength of a pressure part of a swash plate with which the...  
JP2008202532A
To provide a vane compressor with little abrasion of vanes even in increased revolution speed, and highly efficiently operable over a long period.Slide grooves 16 are formed to a vane holding member 14 attached to a drive rotational shaf...  
JP2008175175A
To provide a highly efficient generator using hydraulic pressure of a small-scale water pipe without distribution of the hydraulic pressure, so that the generator is convenient when lifting a wheelchair or helping a disabled person takin...  
JP2008169807A
To provide a turning device wherein loss is insignificant even in the case where a flow rate and a pressure significantly change, and also to provide an electricity generation device generating electric power in an unintentional action o...  
JP2008163808A
To further shorten a dimension in the direction along the rotational axis.This radial type piston motor device has a plurality of stages of planetary gear mechanisms 200 and 300 decelerating and outputting this rotational driving force, ...  
JP2008164174A
To provide a control device for a variable displacement hydraulic motor capable of preventing the stall of a motor even at the occurrence of such trouble that a spool of a pressure compensation valve of the control device is stuck in a n...  
JP2008151142A
To provide a hydraulic motor having simplified means for securing control function.The hydraulic motor with a rotating shaft coupled to an alternately linearly displacing piston comprises a casing 12 enclosing the piston 24 and an invert...  
JP2008144720A
To provide a variable stroke characteristic engine improving space efficiency furthermore to contribute to compact of the engine.The variable stroke characteristic engine comprises a control shaft 11 supported by an engine body (crankcas...  
JP2008141934A
To efficiently generate electric power making use of daily movements.A tank 1 and a tank 2 for liquids, which deform by weighting are arranged near a heel within a shoe, and around a root of a big toe of a foot to produce flow of the liq...  
JP2008138647A
To provide a slewing gear efficiently rotating even in a condition where a flow rate and pressure greatly change.A rotor 32 is arranged in a casing 31 in a concentric state, and a raised part 31a is formed on the inside wall of the casin...  
JP2008133801A
To provide a hydraulic device reducing friction and smoothing slide between a plunger and a plunger hole provided in a cylinder block, and preventing eccentricity of the plunger in the plunger hole.The hydraulic device is provided with g...  
JP2008128222A
To provide a swash-plate type hydraulic rotating device of which the engagement-insertion hole of a piston for inclinatorily rolling a swash plate, is not deformed by the attachment of a rotary shaft bearing of a casing.The swash-plate t...  
JP2008121614A
To provide a dual speed swash plate motor capable of reducing wear generated by a tilted piston and a cylinder hole for the tilted piston, improving durability, and extending lifetime.This motor is provided with the tilted piston 17 capa...  
JP2008101627A
To make a spool valve type gerotor motor bear lateral load acting on an output shaft without dropping volume efficiency, and achieve miniaturization and reduction of number of components.The gerotor motor 11 makes working fluid flow in f...  
JP2008088953A
To enable variable quantity to be freely set in a variable stroke characteristic engine capable of varying movement stroke of a piston.In the variable stroke characteristic engine, a planetary gear mechanism PL is connected between a van...  
JP2008082173A
To prevent interference of a vane with a housing by receiving the maximum load generated on a control shaft between a housing bearing part and a vane shaft, in a variable stroke characteristics engine varying the moving stroke of a pisto...  
JP2008082177A
To provide an engine with variable stroke characteristics having a piston and a crankshaft connected to a control shaft through a variable stroke link mechanism, operating the variable stroke link mechanism by driving the control shaft w...  
JP2008082175A
To provide an engine with variable stroke characteristics having a piston and a crankshaft connected to a control shaft through a variable stroke link mechanism, operating the variable stroke link mechanism by driving the control shaft w...  
JP2008082321A
To change motion of fluid with a pressure into circular motion, and change every motion where a biased fluid motor acts on into the circular motion.A rotary gate valve is decentered and is housed in a gate frame 2. A rotor is decentered ...  
JP2008082176A
To provide an engine with variable stroke characteristics having a piston and a crankshaft connected to a control shaft through a variable stroke link mechanism, operating the variable stroke link mechanism by driving the control shaft w...  
JP2008075456A
To provide a brake device of friction type capable of preventing generation of friction when releasing brake.This brake device is provided with a disc plate 21 rotating together with a cylinder block 3 and being movable in the axial dire...  
JP2008069732A
To reduce air consumption by efficiently using air without waste from the beginning and thereby improve air followability.An air motor 2 comprises a cylinder 10 having a cylindrical space S, a rotor 11 rotatably provided at an eccentric ...  
JP2008062691A
To enhance the transmission efficiency of HST formed by a hydraulic pump body and both hydraulic motor bodies in a hydraulic drive type working vehicle in which a front side hydraulic motor body for operatively driving a front side drive...  
JP2008062692A
To provide a wheel motor device capable of enhancing design freedom regarding a connection structure of an operation oil pipe between hydraulic pump bodies arranged with a space.At least one of first and second operation oil passages for...  
JP2008064082A
To eliminate a clearance, since the clearance is inevitably formed between a rotor and a rotor frame, and between the rotor and the rotor.A micromotion tip part 1 is formed of two pieces or more, and both rotors are formed in the same sh...  
JP2008057343A
To enhance contamination resistance and seizure resistance while increasing sealing effect between a piston and the inside wall of a cylinder.A piston member 31 is swingably connected to one end of a piston rod 32 through a universal joi...  
JP2008057342A
To prevent hydraulic oil from leaking out of the connected portion between a cylindrical plate and a cylinder to the outside when the cylinder is slid on the cylindrical plate.The head part 40A of a cylinder 40 is formed in a generally s...  
JP2008057344A
To eliminate insufficient rotating force and energy loss even if the pressure and displacement are varied.When a force matching a pressure P in a cylinder oil chamber 4b at the bottom dead center is larger than the spring force of a spri...  
JP2008051118A
To make small the size of a bent axis fluid pressure unit wherein a pushing and removing quantity is adjustable.On a flame 12, a fluid pressure module containing one pair of shafts 25, 26 is rotatably supported, two yokes 14 and 16 are p...  
JP2008051072A
To smooth a motion when moving a piston in an inside of a cylinder hole while a great load acts thereon, by simple working, and to enhance abrasion resistance or the like.Micro recesses 21 forming a gently sloped face 21a from the deepes...  
JP2007177764A
To provide a swash plate piston motor supplying a bearing part of an motor inside with appropriate pressurized oil as lubricating oil.The swash plate piston motor has a concave part 60 opening at a rear side of an output rotary shaft 50 ...  
JP2007170412A
To provide a hydraulic turbine of high hydraulic turbine efficiency constructing a runner enclosing a pressure receiving surface body of large flowing water pressure receiving area and a casing composed of a tube having an inner surface ...  
JP2007162534A
To keep vibration generated in a drive force transmitting system between a piston and an oscillating plate mutually converting reciprocating motion and rotational motion minimum.The oscillating plate 22 fixed on an oscillating rod 21 and...  
JP3958113B
To provide a swash plate type fluid pump/motor capable of preventing pulsation by a working fluid, and having a piston allowing its weight to be reduced and excellent in specific gravity balance. This swash plate type fluid pump/motor is...  
JP3954944B
To provide a swash plate angle operating lever for a hydraulic infinite variable speed transmission for operating a swash plate of a hydraulic pump in the hydraulic infinite variable speed transmission having the hydraulic pump and a hyd...  
JP3950614B
To provide a gear pump or a gear motor capable of easily inserting a positioning pin into a positioning hole by a nonprofessional, and being assembled with high workability. Inner diameters of first positioning holes 18 and 19 formed on ...  
JP2007107493A
To provide a radial piston type fluid rotary machine provided with a shoe capable of surely preventing an edge part of the shoe from biting into a cam surface and scratching on the cam surface.An oil grove 26 is formed on a slide surface...  
JP2007100317A
To improve a hydraulic circuit, including a structural change of an feed pump and a revolving motor, so as to increase the efficiency of a hydraulic system, during excavation work in the state of abutment on the lateral surface of a ditc...  
JP2007071030A
To serviceably utilize pressure water as power generation energy.This hydraulic power generation system 10 has a driving device 18 driving a generator 16. The driving device 18 has a plurality of piston-cylinder mechanisms 24A to 24D dri...  
JP2007071195A
To solve a problem wherein fluid pressure receiving area is constrained in radius dimension of a rotor main body, because a sinking position of a vane body attached to a rotor or an oscillating part after action depends on a system chang...  
JP2007056685A
To easily manufacture a swash plate capable of tiltably operating a variable displacement hydraulic motor.The rear surface 32 of the swash plate 30 is formed in a stepped surface with steps 34 and 35. A pair of rear surface portions 32a,...  
JP3915223B
To reduce a noise and a vibration by reducing the pressure variation width of the oil enclosed in filing space, without hurting the compact property, in a gear pump or a motor. In a gears 1 respectively, an additional machining is applie...  
JP3913399B
To improve performance of an oscillation type hydraulic pressure equipment by providing a simply-configured vane assembled body, which is composed of a rotor shaft and a vane with satisfactory dimensional accuracy and assembling accuracy...  
JP3913920B
To improve the workability of assembling and to miniaturize a device by using the components of a tilting and rotating actuator in common and reducing the number of part items. The casing main body 2 of a casing 1 is provided with one ti...  
JP3909444B
To position an overlapping part of an annular pressure chamber with adjoining fluid port of spider form in the proximity of the overlapping part of the fluid port of spider form with static valve passage to provide more desirable axial p...  
JP3911211B
To provide a hydraulic motor capable of certainly eliminating the friction resistance of a brake disc when the brake is disengaged. The hydraulic motor 1 is composed of a plurality of pistons 6 reciprocating with liquid pressure, a cylin...  
JP3909988B
To prevent erosion of a valve plate in a rotary swash plate type piston pump. In the rotary swash plate type piston pump wherein a surface layer which is brought into slide contact with a cylinder block is formed of a material having a h...  
JP2007023927A
To provide an installation structure for a swash plate support stand inhibiting looseness of the swash plate support stand and enabling to easily attach and detach the swash plate support stand on and from a casing.The casing 6 of a pist...  
JP2007022197A
To provide a wheel motor device capable of directing a hydraulic oil port and an oil port to proper directions respectively, in a wheel motor device with a hydraulic motor unit having a motor housing provided with the hydraulic oil port,...  
JP2007009801A
To miniaturize a hydraulic motor by providing a spring for a brake pressing a brake piston against a flange at an outside of a swash plate and a rotation stopping pin of the brake piston on a same circumference.A plurality of spring hole...  

Matches 701 - 750 out of 2,300