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WO/1990/002267A1 |
This invention relates to an oil pressure feeder which can prevent the abrupt fall of a work machine at the time of breakage of a piping arrangement for supplying a pressurized oil to a work machine cylinder and which can make the loweri...
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WO/1988/004367A1 |
The second stage (10) of a fail-fixed flow-control servovalve has a five-lobed valve spool (12) slidably mounted in a body bore (19). At null, the end lobes (41, 45) are substantially zero-lapped with respect to supply pressure slots (22...
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WO/1987/002427A1 |
A fault detector for a triplexed mechanical or hydromechanical system has a tripodal summing member (10, 60) which receives three mechanical position signals (18, 20, 22, 61-63) in three different channels with the tripodal summing membe...
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WO/1985/000204A1 |
Improvement to electro-fluidic relays susceptible of indicating either the maximal or the minimal threshold of pressure of a fluid circuit or the position of a movable member of a jack. The relay is comprised of a connector (1, 2) secure...
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WO/1984/001333A1 |
A relatively expensive, relatively heavy, and relatively nonflammable hydraulic fluid (chlorotrifluorethylene) is used in an aircraft ground wheel brake system between the piston (72) of a deboost device (68) and a set of wheel brakes (1...
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WO/1983/001604A1 |
Disclosed is a safety latch cylinder (48) for a tiltcab truck (10). The safety latch cylinder (48) comprises a hydraulic cylinder extension of which unlatches a cab latch mechanism (46) and a bypass to tank (30) through the hydraulic cyl...
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WO/1982/002229A1 |
A mechanism (80) is provided to controllably lower an actuator (28) upon the loss of a source (62) of pilot fluid in a fluid system requiring a float condition of operation. A resolver (80) is located in a vent line of a make-up valve an...
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WO/1982/000862A1 |
Hydraulic fluid powered actuation system for controlling the position of a control surface (162) of an aircraft in response to a plurality of redundant control signals. The system comprises a tandem actuator (10) adapted to be mounted in...
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WO/1981/003689A1 |
A fluid power control system (17) having an improved control valve (20) providing reduced regulated pressure fluid selectively from a high pressure pump supply (P) or the fluid motor (10) under conditions wherein the pump supply has fail...
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WO/1981/003685A1 |
A fluid system (10) having a directional control valve (12) operated by a pilot valve (11) having a manually operable control handle (22) for selectively controlling a fluid motor (14) in positioning a load (17). The pilot valve (11) inc...
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WO/1981/003527A1 |
A hydraulic piston cylinder device comprising a cylinder (1), a piston (2) dividing the cylinder into two cylinder spaces (A and B), and valve elements (7, 9) between the cylinder spaces (A and B) and the respective pressure medium pipes...
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JP2019194484A |
[Subject] Detecting accuracy of a fluid leak detection system is raised. [Means for Solution] Fluid leak detection system 100 is provided with the following. Detection space 20 to which operation oil which leaks from rod seal 11 which cl...
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JP6603568B2 |
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JP6603307B2 |
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JP2019190650A |
[Subject] The present invention indicated a safe feeding system containing a feeding housing. [Means for Solution] Space of operation which an opening turns to upwards is established in an inside of the feeding housing, A liquid pressure...
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JP2019190651A |
[Subject] The present invention indicated an automatic feeding system containing a feeding housing. [Means for Solution] Space of operation which an opening turns to upwards is established in an inside of the feeding housing, A liquid pr...
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JP2019190649A |
[Subject] The present invention indicated a material processing device containing a feeding housing. [Means for Solution] Space of operation which an opening turns to upwards is established in an inside of the feeding housing, A liquid p...
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JP6599410B2 |
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JP2019529246A |
The present invention relates to the air processing unit (102) for the brake equipment (100) of a commercial vehicle. In order that, as for this air processing unit (102), an air processing unit (102) may change the operation pressure in...
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JP2019527799A |
The present invention relates to control and a supervising system (S) of an urgent release joint which are driven with high pressure gas in empty pressure. A system (S) is provided with a power type urgent release joint (1) arranged in a...
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JP6581499B2 |
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JP6579015B2 |
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JP6581444B2 |
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JP2019155935A |
[Subject] While being able to protect a motor from an electrical overload, it is offer of a damping device for rail cars which can improve a degree of comfort in a rail car. [Means for Solution] Cylinder main part Cy which expands and co...
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JP2019157626A |
[Subject] Provide a method of operating a suitable liquid pressure device and it. [Means for Solution] This indication includes a hydraulic device and a method for a duplication operation of a liquid pressure device. The 1st and 2nd liqu...
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JP6576856B2 |
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JP6574066B2 |
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JP2019148287A |
[Subject] In a fluid supply unit and a pressing device which equipped a pump driven by an electric motor, an electromagnetic valve from which the degree of valve-opening changes according to control current supplied, and an electric moto...
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JP2019148301A |
[Subject] The actuators, such as a cylinder, are prevented from operating rapidly, when a hose explodes and an oil leak occurs. [Means for Solution] Control valve 160 which an oil pressure control device is a fluid pressure control devic...
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JP6565275B2 |
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JP2019135143A |
To provide aircraft wing flaps, and specifically, distributed trailing edge wing flap systems.An aircraft wing flap system (300) includes a flap (112) and an actuator (302). The flap (112) is movable between a deployed position and a ret...
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JP6559047B2 |
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JP6556569B2 |
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JP6551296B2 |
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JP2019116927A |
To provide a method and system for detecting wear of a linear motion actuator such as a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.A method for detecting wear of a linear motion actuator comprises: attaching a physi...
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JP2019112801A |
To provide a work vehicle capable of securely detecting abnormality in hydraulic pumps arranged on the work vehicle which is provided with the plurality of hydraulic pumps.A work vehicle having a plurality of actuating parts comprises: a...
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JP2019100512A |
To detect operations of a fluid pressure actuator with an inexpensive and simple structure.An operation detection device 30 includes a control device 25 which calculates speed change amount of a piston 13 by differentiating detection pre...
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JP6527858B2 |
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JP6525418B2 |
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JP6518379B2 |
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JP2019060453A |
To provide an abnormality detection device which can detect abnormality of a fluid pressure actuator.An abnormality detection device 1 of a fluid pressure actuator A includes a displacement detection part 2 which detects a displacement o...
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JP6497739B2 |
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JP6497738B2 |
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JPWO2018179070A1 |
Irrespective of a state of abnormalities of a pump output switching arrangement, a hydraulic control system of an operating machine which can detect abnormalities of a pump output switching arrangement is provided. A hydraulic control sy...
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JP6495784B2 |
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JP6496631B2 |
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JP6496741B2 |
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JP2019049335A |
To provide a construction machine capable of suppressing the unintended operation of a hydraulic actuator even when a double discharge type pump in a hydraulic closed circuit system is in trouble.A hydraulic closed circuit system 200 inc...
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JP6491084B2 |
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JP6484021B2 |
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