Patents for F15B 11 - Servomotor systems without provision for follow-up action (16,384)
07/2008
07/02/2008CN201079848Y Multifunctional parallel connection digital control boring machine
07/02/2008CN101213376A Valve controller
07/02/2008CN101213375A Fluid pressure circuit
07/02/2008CN101210580A Star-wheel synchronization hydraulic system for tunneling machine
07/02/2008CN100398844C Controller of integrated electric hydraulic brake
07/01/2008US7392734 Actuator using fluid cylinder, method of controlling the actuator, and choke valve devices
07/01/2008US7392653 Hydraulic control system for working machine
06/2008
06/26/2008WO2008075648A1 Hydraulic drive device for hydraulic excavator
06/26/2008DE102006060334A1 Hydraulische Ventilanordnung A hydraulic valve assembly
06/26/2008DE102004029883B4 Lenkhilfevorrichtung für ein Fahrzeug Power steering device for a vehicle
06/25/2008EP1934487A1 Hydraulic control device
06/25/2008EP1325236B2 Driving mechanism and shut-off valve
06/25/2008CN201078362Y Hydraulic pressure control system of integration supervoltage biological treatment equipment
06/25/2008CN101205938A Floating hydraulic system for end gate of pavement milling and planning machine
06/25/2008CN101204781A Machine tool main axis constant power device of oil motor drive
06/25/2008CN101204777A Ring-shaped lead rail of vertical type lathe
06/19/2008WO2008072422A1 Engine load control device of work vehicle
06/19/2008WO2008071567A1 Control device for a transmission
06/19/2008DE19857890B4 Ventilanordnung Valve assembly
06/19/2008DE102007059604A1 Operating system for hydraulic machine controls comprises control lever connected to pressure control valve which is connected to chambers of double-action hydraulic cylinder which exerts restoring force on lever
06/19/2008DE102007057023A1 Actuator control method e.g. for steering systems of motor vehicles or ships, involves generating desired movement of element and providing three channels for flow of liquid
06/19/2008DE102006061516A1 Hydraulikanordnung zur Ansteuerung zweier Aktuatoren Hydraulic system for controlling two actuators
06/19/2008DE102006059040A1 Vorrichtung zur Druckerhöhung in Zylindern mit Schalteinrichtung Device for increasing the pressure in cylinders with switching device
06/19/2008DE102006058913A1 Steuerungsvorrichtung für ein Getriebe Control device for a transmission
06/19/2008DE102006058912A1 Vorrichtung und Verfahren zur Steuerung eines Getriebes Apparatus and method for controlling a transmission
06/19/2008DE102004061861B4 Druckabschneidungsventileinheit und damit versehener hydraulischer Kreislauf Druckabschneidungsventileinheit and provided therewith hydraulic circuit
06/18/2008EP1932797A1 Lifting apparatus
06/18/2008CN101203681A Actuator using fluid cylinder and method of controlling the same
06/18/2008CN101201069A Variable frequency pump-control-motor closed circuit based on energy regulation
06/18/2008CN101201068A Numerical control hydraulic system of switch reluctance motor pump
06/17/2008US7387061 Control apparatus for hydraulic cylinder
06/17/2008CA2473966C Hydraulic apparatus
06/12/2008WO2008068938A1 Torque controller of three pump system for construction machinery
06/12/2008WO2008067866A1 Method for operating a hydraulic system, and hydraulic system
06/12/2008WO2008067828A1 Soft start valve device
06/12/2008DE102006057699A1 Verfahren zum Betreiben eines Hydrauliksystems sowie Hydrauliksystem A method of operating a hydraulic system and hydraulic system
06/12/2008DE102006057475A1 Hydraulische Steueranordnung The hydraulic control arrangement
06/11/2008EP1930638A1 Softstart valve device
06/11/2008EP1930604A2 Hydraulic control device
06/11/2008EP1711714B1 Circuit arrangement
06/11/2008CN100394041C Control valve assembly for a single-acting cylinder
06/11/2008CN100393949C Signal processing device of construction machinery
06/10/2008US7383681 Method and apparatus for coordinated linkage motion
06/05/2008WO2008066818A1 Flow control valve having a non-linear biasing member
06/05/2008WO2008064850A1 Hydrostatic drive unit comprising a total power regulation device
06/05/2008DE102006055931A1 Hydrostatischer Antrieb mit einer Summenleistungsregelvorrichtung Hydrostatic drive with a total power control device
06/04/2008EP1927762A1 Working fluid cooling control system of construction machine
06/04/2008EP1927760A1 Device for controlling the trajectory of an arm of an engine with variable compression rate or of a robotic gearbox
06/04/2008EP1927759A1 Double check valve having floating function
06/04/2008CN101194118A Actuating cylinder for vehicle gearboxes
06/04/2008CN101191507A Hydraulic system for tunneling machine
06/04/2008CN101191506A Double check valve having floating function
06/04/2008CN101191340A Relief pressure switching apparatus for hydraulic working machine
06/04/2008CN100392257C Hydraulic working machine
06/03/2008US7380491 Flow valve and flow distributor comprising several flow valves
06/03/2008US7380489 Hydraulic circuit for option device of heavy construction equipment
06/03/2008CA2413416C Hydraulically controlled pressure relief valve for high-pressure reactors
06/03/2008CA2361287C Turning of a propulsion unit
05/2008
05/29/2008WO2008063104A1 Module system for manufacturing two and three stable positions fluid-operated actuators
05/29/2008WO2008061750A1 Gas spring device
05/29/2008WO2008061748A1 Gas spring device
05/29/2008WO2008017359A8 Actuating device
05/29/2008DE10228009B4 Steuergerät für einen hydraulischen Aufzug mit Gegengewichtsausgleich Control device for a hydraulic elevator with a counterweight balancing
05/29/2008DE10209824B4 Hybridantrieb Hybrid drive
05/29/2008DE102004018984B4 Vorrichtung zum Bereitstellen einer reduzierten Hydraulikströmung für mehrere betätigbare Einrichtungen in einem druckkompensierten Hydrauliksystem An apparatus for providing a reduced flow for a plurality of hydraulic devices operable in a pressure compensated hydraulic system
05/28/2008EP1925870A1 Fluid controller
05/28/2008EP1925825A2 Relief pressure switching apparatus for hydraulic working machine
05/28/2008EP1925755A2 Two stage spool centering mechanism for a machine operating at an excavation site
05/28/2008EP1924774A1 Detecting of faults in a valve system and a fault tolerant control
05/28/2008EP1924773A1 Control apparatus and control method for a piston/cylinder arrangement
05/28/2008CN101187386A Differential valve
05/27/2008US7377480 Electrohydraulic valve servomechanism with adaptive resistance estimator
05/22/2008WO2008059101A1 A device meant for controlling of an oscillation cylinder
05/22/2008WO2008058584A1 Hydraulic two-circuit system and interconnecting valve arrangement
05/22/2008CA2669491A1 A device meant for controlling of an oscillation cylinder
05/21/2008EP1694968B1 Apparatus and methods for actuation
05/21/2008DE102006054863A1 Hydraulische Anordnung Hydraulic arrangement
05/21/2008DE102006054572A1 Hydraulic system for vehicle servo-steering mechanism, has pump with suction port that is connected with return port of servo-valve such that pump and servo-valve define main pressurizing medium circuit, and tank lying outside circuit
05/21/2008DE102006054122A1 Fluid e.g. nitrogen, system i.e. fluid weight compensation system for vertically movable machine and equipment components, has piston freely movable back and forth within cylinder for closing and opening fluid connection in trap circuit
05/21/2008DE102006054032A1 Steuerungsvorrichtung für ein Getriebe und Verfahren zur Steuerung eines Getriebes Control apparatus for a transmission and method for controlling a transmission
05/21/2008DE102006053897A1 Hydraulisches Zweikreissystem und Zusammenschaltventilanordnung Hydraulic dual-circuit system and interconnecting valve arrangement
05/21/2008CN201062596Y Cut-off valve
05/21/2008CN101184923A Hydraulic system having a post-pressure compensator
05/21/2008CN101181815A Positioning locking cylinder hydraulic circuit for two plate injection moulding machine
05/20/2008US7373869 Hydraulic system with mechanism for relieving pressure trapped in an actuator
05/15/2008US20080110509 Hydraulic pump flow shut-off valve
05/15/2008US20080110166 Energy recovery and reuse techniques for a hydraulic system
05/15/2008US20080110165 Energy recovery and reuse methods for a hydraulic system
05/15/2008DE202007001765U1 Windenergieanlage mit einer hydraulisch betätigten Rotorbremse Wind turbine with a hydraulically operated brake rotor
05/15/2008DE102005008628B4 Kreissäge mit hydraulischem Antrieb Circular saw with hydraulic drive
05/14/2008EP1052413B1 Revolution control device
05/14/2008CN101180469A Hydraulic controller of construction machinery
05/14/2008CN101178083A Engineering vehicle walking driving hydraulic system
05/14/2008CN101177930A High-low pump combination hydraulic system
05/14/2008CN101177217A Uncoiler apparatus
05/14/2008CN100387851C Hydraulic control valve having holding valve with improved response characteristics
05/13/2008US7370569 Hydraulic drive
05/13/2008US7370475 Traveling hydraulic working machine
05/08/2008US20080104955 Bidirectional hydraulic transformer
05/08/2008DE10296739B4 Hydrauliksystem und Verfahren zum Betreiben eines Hydrauliksystems Hydraulic system and method of operating a hydraulic system
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