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2025
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Invention
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Directional control valve device.
A directional control valve device has: a plurality of spool v... |
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Invention
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Electromagnetic proportional valve.
An electromagnetic proportional valve includes: a valve unit... |
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2023
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Invention
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Method of controlling hydraulic device. A method of controlling an oil pressure system according ... |
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Invention
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Brake device.
A brake device includes a brake mechanism including a shaft received in a brake ch... |
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Invention
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Hydraulic motor unit. An oil pressure motor unit according to an aspect of the disclosure include... |
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Invention
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Hydraulic drive system and construction machine. The hydraulic drive system includes a hydraulic ... |
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Invention
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Hydraulic device, hydraulic motor and construction machine. A hydraulic device includes: a first ... |
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Invention
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Fluid valve. a of the spool 3 to stop foreign matter from entering into the drain port 9. |
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Invention
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Hydraulic pump with swash plate tilt control. A hydraulic pump that allows a drive source to be s... |
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2021
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Invention
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Fluid pressure drive device. A hydraulic drive device according to an embodiment includes a main ... |
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2020
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Invention
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Hydraulic circuit for construction machine, and hydraulic circuit. Provided is a hydraulic circui... |
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2019
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Invention
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Hydraulic system. A hydraulic system includes a piston, a swash plate opposed to the piston, and ... |
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Invention
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Hydraulic pump with swash plate tilt control. A hydraulic pump includes a cylinder block, a plura... |
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Invention
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Hydraulic drive device. Provided is a hydraulic drive device configured not to be increased in le... |
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Invention
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Connecting structure and hydraulic drive device. Provided are a connecting structure and a hydrau... |
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2015
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Invention
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Hydraulic circuit for construction machine. p when the pressure oil recycling is performed. |
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Invention
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Hydraulic circuit for construction machinery. Cost for a direction switching valve (third directi... |
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Invention
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Hydraulic circuit for loader. An optional-attachment-operating direction switching valve is provi... |
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2013
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Invention
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Construction machine with hybrid drive unit, regenerative device equipped in construction machine... |
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2012
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Invention
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Swash-plate hydraulic motor or swash-plate hydraulic pump. b2) and has a shape having a predeterm... |
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Invention
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Reduction gear. Provided is a reduction gear with which allowable output can be further increased... |
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2011
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Invention
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Drive unit for windmill. A cutaway portion is provided in a driving force transmission path and s... |
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Invention
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Stack valve. c at which the unloading path 21 on the upstream side is connected to one of the sup... |
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Invention
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Hybrid construction machine control system. [Object] When total power required by a hybrid constr... |
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Invention
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Hydraulic control valve for construction machinery. It is addressed to provide a hydraulic contro... |
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2009
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Invention
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Windmill pitch driving apparatus. A windmill pitch driving apparatus is provided, which is capabl... |
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Invention
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Liquid pressure motor. b where the pilot passage 54 is connected to the back pressure chamber 21.... |
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Invention
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Stack valve having bucket parallel movement function. a of a bucket cylinder 4, an ascending bran... |
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2006
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Invention
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Gear mechanism and reduction planetary gear. In a gear mechanism, inner gear teeth and outer gear... |
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Invention
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Hydraulic control device for loader. An arm direction changeover valve (11) is provided in an arm... |
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Invention
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Hydraulic circuit. To provide a hydraulic circuit with a compact and simple structure while secur... |
