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Patent Searching and Data


Matches 651 - 700 out of 3,127

Document Document Title
JP5683895B2  
JP2015028387A
To provide a hydraulic system of an aircraft actuator that can drive the actuator even when a function of an airframe-side hydraulic pressure source is lost or lowered, and can suppress a rise in temperature of the whole system and a ris...  
JP2015025475A
To improve energy recovery efficiency by communicating an actuator oil path with a regenerating hydraulic motor at a small pressure loss during regeneration without giving influences to the operation of a hydraulic actuator except during...  
JP2015020660A
To provide an abnormality detection device of a steering device, which is applicable to the steering device turning a steering gear by changing the tilting angle of a liquid pump.In a steering device, a servo piston 38 is moved via a ser...  
JP2015014349A
To provide an emergency air supply system capable of automatically supplying driving air, and capable of maintaining a state in which an air-operated valve can be operated even when an air source is lost in a plant.An emergency air suppl...  
JP5658117B2  
JP5651099B2  
JP5649449B2  
JP2015001297A
To provide an electric hydraulic actuator which is reducible in size and weight including a fitting structure while securing a capacity of a relatively-large capacity reservoir.An electric hydraulic actuator 1 comprises: a single rod cyl...  
JP5647052B2  
JP5646231B2  
JP5641369B2  
JP5639968B2  
JP5635132B2  
JP2014531005A
A fluid adjustment system which has a reset device and a method is explained in this specification. An example of a reset device for using it with a fluid adjustment system is provided with the following. An entrance which receives load ...  
JP5619047B2  
JP5620800B2  
JP5617945B2  
JP2014205977A
To provide a drive unit of a working machine which can continue work even if one or more of hydraulic pumps used in a hydraulic closing circuit system is failed.In this drive unit of a hydraulic shovel, a connection setting part 41b incl...  
JP2014206022A
To provide a revolution braking device capable of quickly stopping a revolution body in emergency and highly reliable.A revolution braking device of a construction machine includes: a brake selector device 54 which supplies a pressure oi...  
JP2014206245A
To provide a load holding device of a hydraulic actuator circuit which reduces the dropping velocity of a driven body regardless of a damage position of a load side pipe line etc.A load holding device 1 includes: a hydraulic actuator 13 ...  
JP2014197007A
To include a plurality of power sources in hybrid vehicles to provide highly cost effective operation.There are provided failure detection and response system and process (method) that can be used for a pump, for example a pump or motor,...  
JP5604194B2  
JP5603651B2  
JP2014189398A
To provide an oil pressure type elevator modification method capable of suppressing man hour and cost of piping work related to additional installation of a duplex check valve to minimum level, and improving reliability and maintainabili...  
JP2014190524A
To prevent damages of a unidirectional filter part for a high pressure oil.A hydraulic system 100 is provided with an accumulator 106 which supplies an oil from an oil tank 102 to a high pressure oil passage L1 and a low pressure oil pas...  
JP2014173721A
To provide an emergency hydraulic system having improved operability and an emergency driving system having superior operability through the emergency hydraulic system and a normal driving system.An emergency driving system is constitute...  
JP5588260B2  
JP2014163464A
To suppress damage of low-pressure specification equipment without blowing out oil outside a pipeline even in a case where a joint is in a non-connection state.A return side joint 43 automatically opens in a connection state, and automat...  
JP2014156314A
To enable a boom interlock function to be attained by a low-cost and high-reliable hydraulic pilot system only by adding a simple pilot circuit in a hydraulic circuit.This device has boom storage state detection means and a pilot circuit...  
JP5579974B2  
JP2014145181A
To provide an interference prevention device for a construction machine, which has a step in front of a cab, capable of restricting operation of an attachment according to an open/close state of the step.An interference prevention device...  
JP2014145225A
To secure regenerative brake action by consuming regenerative energy of a slewing motor without using a regenerative resistor and without causing excessive increase in speed of an engine.A hybrid construction machine is configured so as ...  
JP5571597B2  
JP2014134015A
To achieve accurate control by reliably setting a slewing speed at zero without reference to an actual value of sensor output at the stop of slewing.An super structure is driven for slewing by a revolving motor 8. While a remote control ...  
JP5558497B2  
JP2014132189A
To provide a leg ascending and descending electric hydraulic actuator system for ascending and descending legs of an airplane in which an occupation space of a leg ascending and descending electric hydraulic actuator system is reduced to...  
JP2014118985A
To provide a hydraulic circuit with a regenerating function, which can be changed over between a circuit condition where at least regenerating operation works and a circuit condition where the regenerating operation stops.During boom-dow...  
JP2014120096A
To close a delivery valve quickly when a pump operates an emergency shutdown, and suppress generation of an impact when the delivery valve is closed.The delivery valve unit 350 includes: a delivery valve 334 which is disposed on a delive...  
JP5525395B2  
JP5515375B2  
JP2014105766A
To provide an abnormal detection method capable of detecting abnormality such as hydraulic oil leakage of a hydraulic circuit, without using a flow meter.Based on operation of a hydraulic cylinder, a flow rate of hydraulic oil required f...  
JP5514621B2  
JP5504871B2  
JP5503431B2  
JP5498887B2  
JP5497271B2  
JP5500198B2  
JPWO2012070392A
Valves 4a and 4b for liquid pressure cylinder system 1 being provided by every a plurality of cylinder 3a and 3b, cylinder 3a, and 3b, and adjusting quantity of receipts and payments of hydraulic fluid to the cylinders 3a and 3b, Drive s...  
JPWO2012070392A1
Valves 4a and 4b for liquid pressure cylinder system 1 being provided by every a plurality of cylinder 3a and 3b, cylinder 3a, and 3b, and adjusting the quantity of receipts and payments of the hydraulic fluid to the cylinders 3a and 3b,...  

Matches 651 - 700 out of 3,127