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JP3696383 |
To provide a swash plate type hydraulic device which allows plunger swash plates and valve swash plates to be processed with ease, and makes its mass productivity high, and is excellent in follow-up properties for plungers and distributi...
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JP3696382 |
To easily and quickly process a cylinder block using a parallel multi- axis tool, and simultaneously, make the constitution in the radial direction more compact by disposing a first and a second valve hole in parallel with the axial line...
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JP3695576 |
To reduce oil leakage and increase efficiency at hydrostatic variable transmission in combination with a swash plate hydraulic pump and a swash hydraulic motor. The hydrostatic variable transmission integrally connected is characterized ...
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JP2005180346 |
To provide a fluid device with a relatively simple structure which can stably function over a long term and convert fluid force and mechanical rotation force with a high degree of effectiveness, particularly a fluid device suitable for a...
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JP2005180283 |
To provide a fluid drive device capable of using low pressure water and enabling miniaturization without causing problems of rust and leakage by preventing working fluid and a mechanical moving part to directly contact each other.This de...
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JP3692379 |
To provide a rotary engine to capable of stable operation with a simple constitution. This rotary engine is provided with a partitioning plate 3 to form a partitioning chamber 20 which radially moves in the outer circumferential directio...
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JP2005171764 |
To provide a fluid pressure motor and a transmission, in which a shaft can be easily exchanged.The fluid pressure motor and the transmission are provided with a case 1 capable of storing fluid, a movable swash plate axial piston pump 2 t...
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JP2005163576 |
To allow a sealing member enclosed in a pressure chamber of a rotary valve of a rotating fluid machine, to exhibit sufficient sealing function even when the pressure chamber has low pressure.The pressure chamber 84 into which high-temper...
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JP2005163788 |
To increase the reliability of this type of motor in cutting off in the hydraulic motor 1 having a volumetric portion 2 with at least one rotating volume element 3, a control portion 41 having a rotary valve 12 rotatably fitted into the ...
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JP2005155389 |
To always form stable oil film between a ball and a ball bed surface of a piston supporting the ball.A hydraulic turning device having a cylinder 3 opening at a radial direction outer end formed at an outer circumference part of an inner...
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JP2005147102 |
To provide a miniaturized hydraulic motor without bending a tube, for securing a smooth flow of fluid.This hydraulic motor comprises: a drum 1 having a cylindrical inner circumferential face 2; a plurality of flexible tubes 3 fixed to th...
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JP3683446 |
To provide a small electrohydraulic servo motor. An electrohydraulic servo motor 100 to rotate an output shaft 61 in accordance with a difference of revolution of an axis of ro rotation 41 and the output shaft 61 is furnished with displa...
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JP2005140035 |
To provide a hydraulic machine having improved mechanical efficiency and capacity efficiency while reducing its noises.The hydraulic machine comprises a cylinder block rotatably provided around a rotation axis L10 and having at least thr...
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JP2005140070 |
To provide a scroll compressor having reduced suction power loss by reducing the loss of a flow path in a communication groove extending from a suction port to a suction chamber.In the scroll compressor, a movable scroll is installed for...
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JP3680364 |
To provide a continuous unloader which can enhance the operating efficiency through operations in accordance with the heaviness of the load applied. A continuous unloader concerned 1 is composed of a bucket conveyor which is circulativel...
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JP2005133647 |
To provide an axial piston pump or a motor having a structure capable of realizing smooth movement of cylinder blocks and an end cover even when a liquid with viscosity lower than that of oil, including water, is used as working fluid, a...
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JP2005133696 |
To provide an oilless reciprocating fluid machine having a piston having increased strength of the top wall without changing the outline and dimension at all or almost.In the oilless reciprocating fluid machine, the piston 1 that is made...
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JP2005133619 |
To provide a drive unit capable of efficiently using energy and a pressurized fluid supply system for supplying the drive unit with pressurized fluid.A pair of driving cylinders 11 provided with a reciprocatable driving piston12 driven b...
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JP2005133773 |
To accurately transmit power, while reducing size.A friction plate 72 is provided inside a friction plate moving space 71 between a side surface of a vane 41 and a first right side plate 30R, and the friction plate 72 is always energized...
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JP3679300 |
To stabilize switching control of volume while reducing the size of a volume control valve. An oil chamber 22 is communicated with a tank port and pilot pressure is received only by the side of the pressure receiving side G for reducing ...
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JP2005127181 |
To provide a shoe of a swash plate type hydraulic device having a service life increased by preventing a circumferential stress acting on a hole through the shoe from being concentrated.This shoe 21 of the swash plate type hydraulic devi...
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JP3676198 |
To simplify a structure of a radial type hydraulic motor used for driving wheels of a vehicle. An axle shaft 63 is directly engaged with a cylinder block 43 by spline. The cylinder block 43, the axle shaft 63, and a wheel hub 68 are supp...
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JP3675995 |
To improve durability by preventing abnormal temperature rise of oil in cylinders corresponding to pistons while preventing rotational resistance to be generated by the pistons for generating no driving force in a high-speed mode. A sele...
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JP2005120999 |
To solve a problem in which a conventional scroll fluid machine has a limit of increase in discharging air quantity since the height covered by a tangential hose is increased to make upsetting moment bigger, to increase load of a bearing...
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JP2005121074 |
To smoothly perform the turning with a good riding quality in an automatic transmission mechanism of a construction machine.A variable capacity type hydraulic motor 1 is shiftable to a second speed and a first speed. A capacity control c...
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JP2005121013 |
To improve the quantitative performance of a pump device for mixing two or more types of fluid with each other.The drive part of a fluid transfer device is formed to demarcate two chambers 104 and 106 by a housing and a piston 98. The tw...
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JP2005113739 |
To prevent occurrence of sliding scratch and seizure at a time of sudden start and stop operation of a fluid motor.When sudden start/stop operation of the fluid motor is performed, a cylinder block inclines with a part separating from a ...
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JP3672046 |
PURPOSE: To control the tilt angle of a swash plate with a small number of part items and with a small-sized structure so that the input torque may be approximately constant. CONSTITUTION: A large-diameter pressure receiving chamber 43 a...
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JP2005106039 |
To provide a liquid level position control device for a condenser in a Rankine cycle device capable of stably controlling a condenser pressure and a condensate outlet temperature by cooling fans fitted to a steam condensing part and a co...
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JP2005105898 |
To provide a swash plate type hydraulic pump motor for largely securing the practical volume ratio still in a small type.This swash plate type hydraulic pump motor has first and second swash plates 30 and 40 for oppositely reciprocating ...
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JP2005105899 |
To provide a swash plate type hydraulic pump motor for largely securing the practical volume ratio still in a small type.This swash plate type hydraulic pump motor has first and second swash plates 30 and 40 for oppositely reciprocating ...
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JP2005105900 |
To provide a swash plate type hydraulic pump motor for largely securing the practical volume ratio still in a small type.This swash plate type hydraulic pump motor has first and second swash plates 30 and 40 for oppositely reciprocating ...
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JP3668418 |
To realize the three speed of a variable displacement hydraulic motor at a low cost by positioning a spool member at an intermediate position with a high accuracy. A tiltably rotating piston 7 for adjusting the tiltably rotating angle of...
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JP3668000 |
To reduce whole size and gross weight by suppressing an outer diameter of a casing on which a hydraulic pressure passage is formed, even when a decelerator or the like is attached to the casing. Spline grooves 3 are formed on an inner pe...
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JP3668006 |
To perform two-speed control while preventing cavitation. A two-speed control axial piston motor has a cylinder barrel 14 provided with an external opening 31 and an internal opening 32 formed at the rear end surface thereof. An external...
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JP2005098298 |
To construct a circulate energy society and perform the involved natural environment conservation, by using a hydrostatic pressure prime motor which utilizes pressure power of water in the sea or lake, as well as sunlight, wind power ene...
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JP2005090333 |
To effectively suppress noise caused when rotating at high speed irrespective of a simple structure.A cutout channel 51 is formed at a rear side end in the direction of rotation of a high pressure side fluid port 43 provided in a timing ...
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JP3662065 |
To secure good transmission of rotation between members provided with tilting angles. In a swash plate type pump or a motor, in which a roller hearing supported in a supporting frame on a swash plate back face side is clamped, a holding ...
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JP2005083498 |
To provide a configuration capable of reducing driving force for turning a swash plate and allowing deviation of center of turn of the swash plate from center of turn of a link arm when adopting a mechanism turning the swash plate throug...
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JP2005069230 |
To provide a liquid pressure-feeding device capable of smoothly and stably rotating a semicircular internal tooth planetary rotor in a round outer hull ring-shaped circle at a high speed.This liquid pressure-feeding device A wherein the ...
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JP2005061282 |
To provide a shoe 1 easily ensuring a uniform contact of a sliding contact surface, and manufactuable at low cost.This shoe 1 comprises a hemispherical recess part 1C to which a spherical part 5A of a piston 5 is fitted. In the hemispher...
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JP2005054574 |
To provide a rotary type fluid energy conveyor capable of more simply and easily forming a force couple with hydraulic pressure while achieving reduced size and weight, a lower price, a longer life and improved starting torque efficiency...
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JP2005048594 |
To provide a gear pump or a motor of zero or roughly zero backlash in which damage of tooth face hardly occurs by reducing meshing force of the gears by reducing component of liquid pressure force acting on each gear in a direction that ...
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JP2005042707 |
To provide a variable displacement rotary compressor capable of suppressing the rotation of eccentric bushes at a speed higher than that of a rotating shaft in a specified district due to a variation in pressure in compression chambers a...
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JP2005042702 |
To provide a variable displacement rotary compressor capable of minimizing rotating resistance.This variable displacement rotary compressor comprises a housing demarcated into a first compression chamber and a second compression chamber,...
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JP2005042711 |
To reduce the size of a variable displacement inclined shaft type hydrostatic unit.A hydrostatic module including a pair of shafts 25, 26 is supported to freely rotate on a frame 12, two yokes 14, 16 are pivoted thereon, and each yoke ha...
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JP3644784 |
To provide a swash plate type hydraulic pump or motor which can control micro vibrations of a swash plate. A damper chamber 53 is formed by the internal part of a control piston main body 51 of a control piston 4 which applies moment on ...
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JP2005017001 |
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...
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JP2005016506 |
To provide a gear pump or a motor simple in structure, easy to manufacture, with small number of parts and capable of reducing cost by resolving a problem that a structure of a bottomed rear side main body is complicated and difficult to...
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JP3632035 |
PURPOSE: To downsize and simplify a hydraulic system and reduce a manufacturing cost by on/off controlling an output shaft without complicating the piping of the hydraulic system. CONSTITUTION: Operating oil having high pressure is led f...
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