| Patents for F15B 21 - Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass (10,959) |
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| 02/13/2013 | CN102927089A Energy-saving control method of hydraulic system by using load sensitive technology |
| 02/13/2013 | CN102927088A Pressure control method of hydraulic pump system |
| 02/13/2013 | CN102927087A Control technology for hydraulic pump system self-adaptive to loading pressure |
| 02/13/2013 | CN102927086A Flow control method for load-sensitive variable pump of hydraulic system |
| 02/13/2013 | CN102927068A Setting method of hydraulic oil tank of milling equipment |
| 02/13/2013 | CN102927067A Closed type oil tank structure of hydraulic system |
| 02/13/2013 | CN102927065A Hydraulic oil tank structure of hydraulic machine |
| 02/13/2013 | CN102923613A Heat radiation package for operation forklift in container |
| 02/13/2013 | CN102032224B Nitrogen charge energy accumulation emergency recovery system |
| 02/13/2013 | CN101463850B Method and system for pressure relief energy recovery and recycle of superpressure plant in parallel |
| 02/07/2013 | WO2013019656A2 System for producing hydraulic transient energy |
| 02/07/2013 | DE102011080227A1 Verfahren zur Optimierung der Druckstellgenauigkeit Method for optimizing the pressure control accuracy |
| 02/07/2013 | DE102011054616B3 Hydraulic drive arrangement for linear movement of mass body e.g. pressure flap, of plastic spraying machine, has control circuits comprising line connections guided from dividers to tank, and accumulators charged from dividers in position |
| 02/06/2013 | EP2553276A1 Fluid cooling device |
| 02/06/2013 | CN202718971U Filter of hydraulic oil cylinder |
| 02/06/2013 | CN202718970U Large-capacity constant compensation pressure allowance hydraulic compensation unit |
| 02/06/2013 | CN202718939U Hydraulic oil tank of pavement cold recycling machine |
| 02/06/2013 | CN202718857U Hydraulic filter pump with function of automatic protection |
| 02/06/2013 | CN102913515A Hydraulic pump station condensate water removing device for machine tool |
| 02/06/2013 | CN102913514A Releasing and withdrawing mechanism for hydraulic water pump |
| 02/06/2013 | CN102913498A Energy-saving device for hydraulic plunger pump of pressure filter |
| 02/06/2013 | CN102910067A Hydraulic cooling control method of hydraulic torque converter for tunnel construction internal combustion traction locomotive |
| 01/31/2013 | WO2013016471A1 System and method for enhancing hydraulic fluids for down hole use |
| 01/31/2013 | WO2013015467A1 Hydraulic system for construction machinery |
| 01/31/2013 | WO2013015022A1 Construction machine |
| 01/31/2013 | DE112011100600T5 Steuersystem für eine hybride Baumaschine A control system for a hybrid construction machine |
| 01/31/2013 | DE102011109066A1 Working machine e.g. hydraulic excavator has sealing ring and guide ring/belt that are provided at sealing and sliding surfaces of chambers |
| 01/31/2013 | DE102011108790A1 Reciprocating piston engine has adjusting device for adjusting adjustable variable compression ratio using engine forces of reciprocating piston engine, drive mechanism for driving adjusting device and oil supply system |
| 01/31/2013 | DE102011053230B3 Hydraulically driven arrangement for linear movement of mass element, has valve assembly with three positions, in which discharge of fluid from accumulator, charging of accumulator and free run of piston in third position are enabled |
| 01/30/2013 | CN202707697U Hydraulic control system for sole forming machine |
| 01/30/2013 | CN202707696U Hydraulic device for superfinishing machine |
| 01/30/2013 | CN202707695U 液压冷却系统和工程设备 Cooling system and hydraulic engineering equipment |
| 01/30/2013 | CN202707694U Hydraulic driving axle intelligent cooling system |
| 01/30/2013 | CN202707693U Combined filtering device for tractor hydraulic system |
| 01/30/2013 | CN202707692U Intelligent temperature control device of cooler |
| 01/30/2013 | CN202707691U High temperature oil circulation system with exhausting device |
| 01/30/2013 | CN202707690U Hydraulic system and engineering machinery |
| 01/30/2013 | CN202707689U Hinged hydraulic system and shield tunneling machine |
| 01/30/2013 | CN202707688U Air-control hydraulic station |
| 01/30/2013 | CN202707645U Hydraulic oil tank for injection molding machine |
| 01/30/2013 | CN202707643U Integrated heat-dissipation oil tank |
| 01/30/2013 | CN202707641U Energy recovery hydraulic system and concrete conveying pump |
| 01/30/2013 | CN202707069U Shield tunneling machine and thrust hydraulic system thereof |
| 01/30/2013 | CN202701220U Rebar straightening and shearing machine |
| 01/30/2013 | CN102900731A Hydraulic control system for emergency withdraw of arm support |
| 01/30/2013 | CN102900725A Method for exhausting oil cylinder of hydraulic excavator |
| 01/30/2013 | CN102900715A Hydraulic control system for forklift, and forklift |
| 01/30/2013 | CN102900713A Self-cleaning hydraulic oil tank device of paver |
| 01/30/2013 | CN102900643A Hydraulic control circuit |
| 01/30/2013 | CN101985951B Electric-hydraulic reversing energy recovery device |
| 01/30/2013 | CN101680208B A method for recuperating potential energy during a lowering operation of a load |
| 01/30/2013 | CN101596376B 过滤器 Filter |
| 01/30/2013 | CN101151469B Method of controlling a hydrostatic drive |
| 01/29/2013 | US8363172 Liquid crystal motor making use of flow of liquid crystal |
| 01/24/2013 | WO2012166225A3 Hydraulic control system having cylinder stall strategy |
| 01/24/2013 | WO2012166224A3 Hydraulic control system having cylinder stall strategy |
| 01/24/2013 | DE102011108256A1 Hydraulic drive apparatus for e.g. excavator, has control unit to control piston chambers of cylinder-piston units via control of switching valves based on measurement result of pressure sensors |
| 01/24/2013 | DE102011108253A1 Method for recovering energy from hydraulic system using hydraulic load, involves switching working chambers in optional manner, particularly by switchable proportional valve to carry out loading and unloading operations in pressure source |
| 01/23/2013 | EP2549642A1 Actuator control device and working machine equipped with same |
| 01/23/2013 | CN202691176U Two-way check valve and vacuum oil filter system with same |
| 01/23/2013 | CN202690598U Electro-hydraulic vibration exciter |
| 01/23/2013 | CN202690597U Oil return buffering and radiating device of hydraulic static pile driver |
| 01/23/2013 | CN202690596U Heating device for oil hydraulic system |
| 01/23/2013 | CN202690595U High-pressure oil way magnetic filter for hydraulic system of excavating machine |
| 01/23/2013 | CN202690594U Fast cleaning device for excavator hydraulic system |
| 01/23/2013 | CN202690593U Fluid pump controller |
| 01/23/2013 | CN202690592U Oil motor automatic oil supply system |
| 01/23/2013 | CN202690591U Hydraulic system for portable shearing machine |
| 01/23/2013 | CN202690551U 液压油箱装置 Hydraulic tank unit |
| 01/23/2013 | CN202689925U Anti-idle-punching system of hydraulic drilling jumbo |
| 01/23/2013 | CN202680765U Improved hydraulic structure of sole pressing machine |
| 01/23/2013 | CN102893038A Pipe layer and warm-up method for pipe layer |
| 01/23/2013 | CN102893035A Hydraulic pump control system for construction machinery |
| 01/23/2013 | CN102889785A Lime rotary kiln as well as hydraulic control system thereof |
| 01/23/2013 | CN102889273A Electro-hydraulic system for recycling and releasing potential energy of engineering machinery |
| 01/23/2013 | CN102889272A Piezoelectric-electrohydraulic mixing driving arm and control method thereof |
| 01/23/2013 | CN102889271A Brake fluid cooling device |
| 01/23/2013 | CN102889270A Air cooler for pump truck and concrete pump truck |
| 01/23/2013 | CN102887462A Hydraulic lifting system and heating method thereof |
| 01/23/2013 | CN102887432A Electro-hydraulic integrated driver for rotary pin of container hanging tool |
| 01/23/2013 | CN102886917A Hydraulic servo control system for efficiently improving pressing precision of powder-forming hydraulic machine |
| 01/23/2013 | CN102886402A Hydraulic breaking machine with sliding anvil |
| 01/23/2013 | CN102374310B High/low pressure conversion device and pumping system |
| 01/17/2013 | WO2013007061A1 Concrete pumping device, series cylinder and stroke end adaptive compensation method thereof |
| 01/17/2013 | US20130015669 Method and an apparatus for obtaining energy by expanding a gas at a wellhead |
| 01/17/2013 | DE112011100693T5 Steuersystem für eine Baumaschine A control system for a construction machine |
| 01/17/2013 | DE102012203383B3 Filter assembly of control valve for cam shaft adjuster used in internal combustion engine, has arms whose cross-section area is changed along circumferential direction so that bending moment resistance along arms is set constant |
| 01/17/2013 | DE102011107155A1 Druckluftaufbereitungsanlage und Verfahren zum Betreiben einer Druckluftaufbereitungsanlage Compressed air treatment system and method for operating a compressed air treatment system |
| 01/16/2013 | CN202673887U Hydraulic transmission oil cooling device |
| 01/16/2013 | CN202673886U Cooling device with mounting stretching segment |
| 01/16/2013 | CN202673885U Cooling device with branch oil outlet pipe |
| 01/16/2013 | CN202673884U Overlapped cooling device |
| 01/16/2013 | CN202673883U Two-hole oil cooling device for heading machine |
| 01/16/2013 | CN202673882U Three-hole oil cooling device for heading machine |
| 01/16/2013 | CN202673881U Four-hole oil cooling device of tunneling machine |
| 01/16/2013 | CN202673880U Filter device for hydraulic oil pump truck |
| 01/16/2013 | CN202673879U Multifunctional pump station for flushing hydraulic pipeline circularly |
| 01/16/2013 | CN202673878U Filtering device of closed hydraulic driving system of engineering vehicle |
| 01/16/2013 | CN202673877U Oil filter |
| 01/16/2013 | CN202673876U High-pressure manual pilot backwash filtration station |