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JP7233183B2 |
To provide a hydraulic drive device that can be compactly incorporated with a rotation detection unit for detecting rotation of a hydraulic motor and can readily and accurately detect rotation of the hydraulic motor.A hydraulic drive dev...
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JP7231620B2 |
A hydraulic device (1) comprises a housing (2) and a shaft (3) which is rotatable about a first axis of rotation (4). The shaft (3) has a flange (8), a partly spherical portion (16) and a plurality of pistons (9), which are fixed to the ...
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JP7222843B2 |
To achieve downsizing of a liquid pressure motor with a speed reducer.A liquid pressure motor 100 with a speed reducer includes: a motor housing 11 which houses a motor part 20; a gear housing 32 having a housing recessed part 33 which o...
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JP2023022658A |
To provide a hydraulic motor having a reduction gear for preventing a load operating on a bearing from becoming excessive even if a carrier of a planetary gear is tilted and for preventing a bearing life from becoming short.A hydraulic m...
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JP2023021667A |
To suppress fluctuation in a time required for switching operation, in a work vehicle that operates a speed switching unit according to an oil supply/discharge state of pilot hydraulic oil, the speed switching unit performing switching o...
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JP2023019921A |
To provide a regulator of a fluid pressure motor for drilling capable of reducing an excessive rotation of the fluid pressure motor caused by releasing a twist of a drilling shaft.A regulator 2 comprises a servo piston 4, a first switchi...
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JP7205735B2 |
[Problem] To provide a gear pump or a gear motor in which flexion of a drive shaft and a driven shaft are reduced. [Solution] A gear pump 10 or a gear motor comprises: gears 12, 14 that mesh together and constitute a pair; shafts 16, 18 ...
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JP2023003452A |
To provide a flow rate adjustment mechanism which can suppress the secular deterioration of a function of an elastic body, and a rotating machine.A flow rate adjustment mechanism 60 comprises a valve body 63 and a coil spring 64, is arra...
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JP7206159B2 |
To protect a bottom portion of a cylinder chamber so that it is not damaged by a spring, and to prevent degradation of transmission efficiency, in an axial piston device including the spring for sliding and energizing a piston on the bot...
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JP7190847B2 |
To provide a hydraulic drive device capable of positioning a block to a hydraulic motor with high accuracy.A hydraulic drive device 1 comprises: a hydraulic motor 2A that comprises a rotational shaft 21 and has a first fitting hole 61 on...
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JP7186606B2 |
To provide a highly-reliable swash plate type hydraulic rotary machine which prevents seizure of a piston and a cylinder when a swash plate has a horizontal inclination.A swash plate type hydraulic rotary machine is configured to include...
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JP7185513B2 |
To provide a liquid pressure motor capable of suppressing deterioration in slip resistance performance.A liquid pressure drive device comprises: a swash plate; a casing having a pair of inlet/outlet ports, and supporting a rotary part th...
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JP2022172673A |
To generate electric power by using compressed air without waste discharge of the compressed air along with discharge of drain in a power generation device and a power generation method.A power generation device 1 includes: a compressor ...
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JP7162659B2 |
Disclosed are a travel motor shift valve (100), a travel motor and a construction machine. The travel motor shift valve (100) comprises a valve core (1), a first working oil port (Y), a second working oil port (L), a third working oil po...
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JP7128753B2 |
A hydraulic rotating machine includes a case 3, a cylinder block 2 housed in the case 3 and having a plurality of cylinders 2b, a piston 5 reciprocatively inserted into the cylinder 2b; a swash plate 8 configured to reciprocate the pisto...
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JP2022127370A |
To provide a rotational inertia mass damper which can maintain a flow rate of a hydraulic oil as originally designed even in use over a long time and achieve damping performance properly.A rotational inertia mass damper includes: a dampe...
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JP7118810B2 |
To prevent a shaft-like member from falling off while suppressing increase in size of a swash plate, in a hydraulic system with a swash plate.A hydraulic system 10 includes: a swash plate 50; a swash plate support part 13 for supporting ...
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JP7115394B2 |
To provide a fluid working machine capable of suppressing a fluctuation range of a flow rate and capable of suppressing torque fluctuation.A controller determines, by the group, whether an operation mode in a period in which an eccentric...
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JP2022112992A |
To provide a fluid machine which can prevent pressure pulsation and torque pulsation from being excessive, and a drive method of the fluid machine.A fluid machine comprises: a plurality of pistons for forming a plurality of working chamb...
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JP2022112899A |
To provide a fluid machine which can prevent pressure pulsation and torque pulsation from being excessive, and a drive method of the fluid machine.A fluid machine comprises: a plurality of cylinders; a valve drive unit for driving a plur...
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JP7103714B2 |
[Problem] To provide a scroll expander with which it is possible to achieve an increase in volume ratio without an increase in size, or to achieve size reduction while maintaining a volume ratio. [Solution] A scroll expander 7 comprises:...
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JP7090538B2 |
To stabilize the attitude of a pressure receiving pin that sets the attitude of a swash plate by contacting the protruding end of a control piston, in a variable displacement rotary device.A cylinder block 3 is provided on an operation s...
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JP7083679B2 |
To effectively prevent the occurrences of a scratch and seizure between a peripheral edge part of a cylinder block and a timing plate in a fluid motor.A timing plate 60 of a fluid motor 10 has notch grooves 62a, 62b connected to front si...
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JP7076870B2 |
A piston pump and a piston motor are provided. The piston pump includes a cylinder body (2), a piston (3), a main shaft (1), an end cover (6), and an oil dispensing mechanism. The oil dispensing mechanism includes an oil suction mechanis...
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JP7068410B2 |
A bearing device includes a piston arranged in a cylinder of a rotor, and a half bearing mounted on the piston to support a roller. The piston includes a recessed holding surface, and holding side surfaces on both axial sides thereof. Ea...
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JP7050801B2 |
The invention relates to a continuously variable transmission and a transmission system comprising said continuously variable transmission, wherein the continuously variable transmission comprises a first gear pump and a second gear pump...
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JP2022055018A |
To provide a fluid machine capable of freely switching driving and braking of a fluid pressure rotary machine with control of an electronic control type variable displacement pump motor, and a method for driving the fluid machine.A contr...
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JP7049222B2 |
A brake system (100) configured to brake a hydraulic motor (1) includes a valve device (40) configured to open and close supply passages (53, 54) through which working oil pressurized in a hydraulic pump (51) is supplied to a brake devic...
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JP7044988B2 |
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JP7044652B2 |
A liquid pressure rotary machine in which a rotation delay of a retainer with respect to a cylinder block is reduced and contact of pistons placed between the retainer and the cylinder block with peripheral members is suppressed is provi...
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JP2022048013A |
To prevent a situation that a problem such as seizure occurs between a valve plate and a cylinder block even in a high-pressure high-temperature situation.In a valve plate 50 of a hydraulic motor in which a first pressure port 51 and a s...
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JP2022042820A |
To provide a gear pump or a gear motor capable of suppressing leakage of a working fluid from a high pressure side to a low pressure side.A gear pump (1) has: a driving gear and a driven gear of helical gears; a housing (20) having a spe...
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JP2022039205A |
To improve workability to maintain the quality of a hydraulic device when an end surface of a closure plug is assembled to a pipeline port.A hydraulic motor 20 has: a rotary shaft 23 which is supported by a casing 21 and rotates around i...
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JP7033101B2 |
This seal structure (100), for sealing between an opening end surface (12a) provided in a case (12) and an end surface (13a) facing the opening end surface (12a) and provided in a cover (13), comprises: an O-ring (22) provided in a compr...
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JP2022030106A |
To provide a control device for a hydraulic motor which can automatically switch the operation modes of the hydraulic motor.A control device 10 for a hydraulic motor includes: a housing 50 including a high-pressure oil inlet and a return...
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JP2022024281A |
To reduce manufacturing costs of a liquid pressure motor with a transmission.In a motor 100 with a transmission, a spline portion 32 is formed at an end portion of a drive shaft 31 of a transmission 30, and a spline hole 22 with which th...
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JP2022021611A |
To provide a fluid machine that can acquire rotation information with a simple structure, and to provide a rotation information calculation method and a construction machine.A hydraulic motor 1 includes a casing 2, a cylinder block 3, a ...
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JP2022020961A |
To suppress the size enlargement of a carrier on which a plate is installed by supporting the plate within an inside diameter, and to make a structure compact in a size.A hydraulic motor 10 with a turning reduction gear has a lower reduc...
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JP7014093B2 |
To provide a gear pump capable of securing a seal area sufficiently and maintaining pump capacity efficiency to feed working fluid suitably, even in a case where a cross sectional area of an inflow passage increases.The cross-sectional s...
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JP2022013986A |
To provide a speed reducer capable of suppressing increase in the number of parts, and facilitating assembly work, a fluid motor with a speed reducer, a construction machine and a manufacturing method for a speed reducer.A speed reducer ...
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JP7001525B2 |
To provide a swash plate type fluid pressure rotating machine which can improve durability by suppressing the positional displacement of a valve plate and a cylinder block while suppressing a mechanical loss.A swash plate type hydraulic ...
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JP2022012340A |
To provide a speed reducer, a hydraulic motor with the speed reducer, a construction machine, and a manufacturing method of the speed reducer.A speed reducer includes sun gears, planetary gears, a carrier, a ring gear, and a thrust plate...
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JP6993950B2 |
A piston pump (100) includes a first biasing mechanism (30) configured to bias a swash plate (8) in accordance with supplied control pressure, a second biasing mechanism (40) configured to bias the swash plate (8) against the first biasi...
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JP6979703B2 |
A hydraulic device (1) comprises a housing (27), a shaft (2) which is mounted in the housing (27) and rotatable about a first axis of rotation (4), wherein the shaft (2) has a flange (8) extending transversely to the first axis (4), a pl...
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JP6959215B2 |
To provide a clinoaxis type hydraulic rotary machine which can inhibit misalignment between a cylinder block and a valve plate during assembly.A slide spherical surface part 9B which slidably contacts with a slide contact end surface 6C ...
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JP2021173216A |
To provide a piston assembly capable of suppressing a contaminant from entering a shoe through-hole, and a swash plate type hydraulic device with the same.A piston assembly is included in a hydraulic rotary device comprising a swash plat...
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JP6954366B2 |
Provided is a gear pump or a motor provided with: a casing internally provided with a gear housing compartment in which a pair of gears are housed; a side plate interposed between the casing and the gears; and a gasket which is disposed ...
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JP2021156264A |
To provide a sliding component capable of realizing both improvement in abrasion resistance and strong bonding of a nitriding steel material and a lead-bronze alloy liner.A sliding component in which a nitriding steel material composed o...
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JP6937778B2 |
The invention relates to a hydraulic motor (2), comprising a cylindrical motor housing (201) with a central cylindrical rotor (202) carrying longitudinal vanes (208), wherein the vanes (208) are provided at the outer surface of the rotor...
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JP6913527B2 |
A variable displacement hydraulic pump or motor includes: a swash plate; a lever supported by a housing and configured to rotate in conjunction of tilting of the swash plate; and a sensor configured to detect a displacement amount of the...
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