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Patent Searching and Data


Matches 351 - 400 out of 3,124

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
JP6603568B2  
JP6603307B2  
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...  
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...  
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...  
JP6599410B2  
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...  
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...  
JP6581499B2  
JP6579015B2  
JP6581444B2  
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...  
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...  
JP6576856B2  
JP6574066B2  
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...  
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...  
JP6565275B2  
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...  
JP6559047B2  
JP6556569B2  
JP6551296B2  
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...  
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...  
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...  
JP6527858B2  
JP6525418B2  
JP6518379B2  
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...  
JP6497739B2  
JP6497738B2  
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...  
JP6495784B2  
JP6496631B2  
JP6496741B2  
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...  
JP6491084B2  
JP6484021B2  

Matches 351 - 400 out of 3,124