| Document |
Document Title |
|
JP2008062691 |
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...
|
|
JP2008062692 |
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...
|
|
JP2008064082 |
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...
|
|
JP2008057343 |
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...
|
|
JP2008057342 |
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...
|
|
JP2008057344 |
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...
|
|
JP2008051118 |
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...
|
|
JP2008051072 |
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...
|
|
JP2007177764 |
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 ...
|
|
JP2007170412 |
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 ...
|
|
JP2007162534 |
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...
|
|
JP3958113 |
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...
|
|
JP3954944 |
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...
|
|
JP3950614 |
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 ...
|
|
JP2007107493 |
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...
|
|
JP2007100317 |
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...
|
|
JP2007071030 |
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...
|
|
JP2007071195 |
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...
|
|
JP2007056685 |
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,...
|
|
JP3915223 |
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...
|
|
JP3913399 |
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...
|
|
JP3913920 |
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...
|
|
JP3909444 |
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...
|
|
JP3911211 |
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...
|
|
JP3909988 |
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...
|
|
JP2007023927 |
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...
|
|
JP2007022197 |
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,...
|
|
JP2007009801 |
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...
|
|
JP3894253 |
To provide a brake energy regeneration device which realizes the high speed of the rotation frequency in the pump operating time of a hydraulic pump/motor, and realizes the small type and the light weight of the hydraulic pump/motor. In ...
|
|
JP3894463 |
To surely prevent the proximal end of a piston from being separated out of a piston shoe while allowing them to slightly slide, relative to each other. A thread part 20A on the distal end side of a connection rod 20 is fastened in a thro...
|
|
JP2006336561 |
To provide a variable capacity type swash plate type pump-motor capable of preventing running-out of oil in a contact part accompanying with sliding of a control member for controlling tilting rotation of a swash plate and letting air mi...
|
|
JP3889588 |
To provide a variable displacement type hydraulic rotary machine capable of stably holding its swash plate in the maximum and the minimum tilting position and allowing enhancement of the processing easiness. The hydraulic rotary machine ...
|
|
JP3889592 |
To shorten an axial dimension of a casing and to simplify a drilling process of an oil passage for supplying oil liquid. Inclined rotation support members 24, 40 are fitted into fitting recess parts 6, 8 of a rear casing 5 and a front ca...
|
|
JP2006329093 |
To provide a power generating device capable of generating power efficiently and having the appearance protruding not from a running passage.This power generating device is provided with a seesaw 1 provided with a shaft 2 provided in the...
|
|
JP3880755 |
To provide a small electric hydraulic servomotor. In the electric hydraulic servomotor 100 for rotating an output shaft 61 according to a rotating speed difference between a rotary shaft 41 and an output shaft 61, a longitudinal groove 7...
|
|
JP3877307 |
To provide a pressure oil energy recovery device of such a structure that the displacement of a hydraulic motor fed with the returning pressure oil is controlled and stable operating performance of a working machine is established. The p...
|
|
JP2006266176 |
To provide a hydraulic motor device with a reduction gear utilizing working fluid lubricating the hydraulic motor for lubricating a reduction gear and suppressing enlargement of a casing of the hydraulic motor.The device is used as a sle...
|
|
JP2006266090 |
To reduce or suppress vibration and noise by properly discharging an excess working fluid while an entrapped area is compressed.In this gear pump, a high-pressure side relief groove 41 is formed on the inner surface of a member 4 that ad...
|
|
JP2006233972 |
To provide a hydraulic multi-stroke type axial piston machine capable of increasing output and enlarging the range of use with a simple construction.Rollers 14 are provided as rolling elements, the rollers are disposed in cutout parts A ...
|
|
JP3846758 |
To miniaturize the whole of a radial piston motor by miniaturizing a brake device. In the brake device of a radial piston motor, a radial piston motor comprises a motor case 3, which is rotatably provided on the external peripheral face ...
|
|
JP2006226139 |
To provide a jig for assembling a coil spring by which a compression coil spring can be surely assembled even in a hydraulic motor with brake whose motor cover is thin.The jig for assembling a coil spring is equipped with a spring retain...
|
|
JP2006220306 |
To provide an electric hydraulic motor capable of avoiding that a return oil passage becomes very high pressure.The electric hydraulic motor is connected to a hydraulic actuator for revolving an output shaft 21 by the working oil pressur...
|
|
JP2006214381 |
To provide a rotary piston device easy to start to easily obtain rotating force even in the low-pressure condition and even in the low-flowing-speed condition by providing a means remarkably effective to exchange fluid force to rotation ...
|
|
JP2006214356 |
To provide a multistage-piston type fixed displacement axial piston pump and its motor, which is compact, and whose pulsation can be reduced by changing the shape of a piston and a cylinder block hardly increasing the number of parts, an...
|
|
JP2006207493 |
To provide an inclined shaft type variable displacement pump motor positively detecting position of a tilt angle control piston with simple constitution without requiring a new stroke length for detecting the position of the tilt angle c...
|
|
JP2006207501 |
To provide a hydraulic piston rotating machine preventing the occurrence of erosion of a casing surface with which back flow of high pressure oil from a cylinder port collides, and moreover preventing the formation of bubbles, pulsation ...
|
|
JP3827655 |
To provide a non-circular gear that reduces the change in an engagement pressure angle, is advantageous for setting the tool pressure angle of an engagement teeth surface, can reduce the number of teeth without forming an overhang sectio...
|
|
JP3825972 |
To restrict the rotation of a drive member by a rational structure, and to reduce a manufacturing cost. In this hydraulic pump motor 100 having a rotary casing 115 rotatably arranged on a fixed casing 101, an internal teeth member 106 fi...
|
|
JP2006170422 |
To provide a high output type multistage hydraulic device with hydraulic pumps and hydraulic motors integrated for driving a working machine which requires high output for driving a self energy generating hydraulic driven generator, with...
|
|
JP2006170125 |
To obtain smooth operability even in inertia rotation in a hydraulic motor.In the hydraulic motor provided with a piston mechanism reciprocating a piston by supplied pressurized working fluid and rotating an output shaft, supply and disc...
|
