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Patent Searching and Data


Matches 701 - 750 out of 2,253

Document Document Title
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...  
JP3818175
To reduce mechanical loss of a radial type fluid machine such as an expander. A plunger sliding axis CLp is shifted from the rotational center of a rotating cylinder 12. As a result, when refrigerant flowing into a working chamber 12b ap...  
JP2006161753
To make it possible to always perform proper lubrication and cooling etc. for a reduction gear.A part of pressure oil (a pressure oil signal for tipping) for tipping flowing through an oil passage 17 for tipping is introduced as lubricat...  
JP3815462
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 hemisphe...  
JP2006144748
To provide servo piston fixing structure for fixing a servo piston on a servo piston storage part without causing displacement in a sliding direction in assembly of a variable displacement swash plate type hydraulic rotating machine.The ...  
JP2006132464
To provide a swash plate type pump motor capable of supplying lubricating oil to the vicinity of shoes without forming oil holes guiding lubricating oil to a rotational shaft.This swash plate type pump motor is provided with cylinder blo...  
JP3806248
To provide an axial piston pump and a motor of cam plate type that reduces vibration and noise. In an axial piston pump and a motor of cam plate type, a cylinder block 20 is provided with arc-like cut-off portions 22 corresponding to the...  
JP2006112340
To provide a pressure machine having a vibration suppressing device capable of securely lowering pressure pulsation and the resulting noise by a device of small and simple structure and also lowering pressure pulsation and noise without ...  
JP3793022
To enhance supply efficiency of pressure oil by improving seal performance without increasing sliding resistance. In this plane contact type valve mechanism having a stationary valve member 109 having a stationary oil passage 132 connect...  
JP2006077979
To provide an improved new closed cavity piston by applying the most advanced technology.This closed cavity piston made from a metal injection molding process, has an elongated cylindrical body with a first end that is adapted to receive...  
JP3778715
To conform the working point to the working point of the concentrated overload of a piston by providing a pair of hydrostatic bearings for floating and supporting a swash plate with a spindle in between, and a pair of ports for carrying ...  
JP3778370
PURPOSE: To provide a combined structured body of two pressurized fluid motors fed the hydraulic pressure in parallel. CONSTITUTION: This device provided with casings 4A4B, 38A38B of respective motors 1, 2, cylinder blocks 13, 45 rotatab...  
JP3776585
To ameliorate the durability of an axial piston pump or motor by preventing its piston-energizing spring from buckling and such buckling from in turn causing abrasion. A piston-energizing spring 5 is arranged between a fitting recession ...  
JP3774139
To provide a simple operated hydraulic device. This hydraulic device is provided with connection ports 13 to 16 respectively connected to pilot ports of a first and second hydraulic motors 2, 3, four systems in total. The device is provi...  
JP2006009721
To reduce size and weight of a hydraulic motor, by fitting and inserting an end part of a reducer main body into an end part of a case of the hydraulic motor.The hydraulic motor 40 has the case 41 and a plate 42. A plate 42 is fitted and...  
JP2006002768
To provide a hydraulic motor furnished with a means to hold each propelling member mechanically at a bearing/contacting surface where a hydraulic seal to hinder a propulsive fluid from penetration must be secured.The hydraulic motor is e...  
JP2005351112
To provide a scroll compressor for securing an excellent lubricating state with a simple constitution.This scroll compressor has a through-hole 90 in a fixed scroll 32 for supplying lubricating oil of an oil chamber 68 to a driving chamb...  
JP2005344679
To provide a screw type machine usable as a forwardly and reversely rotatable motor since a large axial force does not act on a main rotor even when a high-pressure fluid flows thereto so that the main rotor can rotate forward and revers...  
JP2005337107
To provide a swash-plate type liquid pressure rotation machine in which wear of a pin hole formed in the swash plate can be restrained without incurring upsizing.A hydraulic motor as the swash-type liquid pressure rotating machine includ...  
JP2005337142
To provide a compressor provided with an oil separator capable of increasing separating capacity of the oil separator.A scroll type compressor is built in a refrigerating circuit of a vehicular air conditioning system and includes the oi...  
JP2005330858
To provide a gear pump or a motor capable of preventing deterioration of delivery flow performance in operation conditions wherein temperature and pressure of hydraulic fluid are high.A gasket 5 partitioning a high pressure side and a lo...  
JP2005325955
To provide a hydraulic rotating device, obtaining large turning torque even if the axial dimensions are small, and stably holding an angle even if a member to be rotated is turned to a predetermined angle and suspended.In this hydraulic ...  
JP2005320885
To increase corrosion resistance and always retain stable sealability by providing a back-up tube of a dust seal in a scroll fluid machine with a new structure back-up member replacing a conventional back-up tube in the back of or inside...  
JP2005315082
To provide a rotary fluid engine having a piston cylinder type rotor forming two or more partition chambers in the inside of a cylindrical housing.A circular rotor 12 is off-centered and journalled in the inside of the cylindrical housin...  
JP2005307821
To suppress deformation of a seal member when assembling it.In this vane type hydraulic motor 1A for generating driving force by relative rotation of a plurality of vanes 4A, 5A, 6A, 7A provided as partitions through the seal members 8a,...  
JP2005307822
To miniaturize a belt type continuously variable transmission.At least one vane 4A, 5A on one side provided integrally for a motor casing 2A and at least one vane 6A, 7A on the other side capable of rotating relatively for the vane 4A, 5...  

Matches 701 - 750 out of 2,253