| Patents for F15B 20 - Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems (2,348) |
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| 06/22/2011 | CN201871267U Filter with safety valve |
| 06/15/2011 | EP1987256B1 Control device and hydraulic pilot control |
| 06/15/2011 | CN201866015U Dual early-warning device capable of preventing hydraulic pump from damage |
| 06/08/2011 | EP2212565B1 Hydraulic system for an aircraft |
| 06/08/2011 | CN201858081U Safety pressure-retaining device of wind power generation hydraulic system |
| 06/01/2011 | EP1561039B1 Draining of oil leak in a hydraulic cylinder |
| 05/26/2011 | WO2011019644A3 Hold open configuration for safety valve and method |
| 05/26/2011 | DE10046914B4 Hydraulische Anordnung zur Betätigung von beweglichen Teilen an Fahrzeugen und Vorspannventil für diese Anordnung Hydraulic arrangement for the operation of moving parts on vehicles and preload valve for this arrangement |
| 05/25/2011 | CN102076975A Fault-tolerant bleed valve assembly |
| 05/11/2011 | CN201827492U Control time relay of breakdown-boosting type electromagnetic relief valve in hydraulic system |
| 04/28/2011 | WO2011050144A1 Safety feature for stuck valve |
| 04/27/2011 | EP2314885A2 Hydraulic control valve |
| 04/27/2011 | CN102037249A Control device and method for a quick-acting gate valve of a steam turbine |
| 04/21/2011 | DE102010048196A1 Method for protecting diathermic oil of primary circuit from volatile impurities in organic rankine cycle plant, involves intervening oil flow with corrective measures before occurrence state of impurities reaches set of values |
| 04/20/2011 | CN201802702U Mechanical protective device for oil cylinder |
| 04/20/2011 | CN201802328U Hydraulic safety control system for hydraulic power tongs |
| 04/20/2011 | CN201800718U Mining cableway hydraulic driving system with speed limiting protection device |
| 04/20/2011 | CN102022400A System for switching to reserve pump in hydraulic system of ordinary power station |
| 04/20/2011 | CN101451549B Method for controlling hydraulic system and hydraulic system for implementing the same |
| 04/13/2011 | CN201794850U Hydraulic reversing valve capable of conducting overload protection function in pressure maintaining process |
| 04/13/2011 | CN201794840U Unloading bidirectional oil way self-locking valve |
| 04/13/2011 | CN201793328U Protective device of bivalve grab bucket hydraulic control system |
| 04/13/2011 | CN201793316U Protective device of orange peel bucket hydraulic control system |
| 04/13/2011 | CN101537984B Hoist motor closed type hydraulic system for preventing pipelines from bursting and control method thereof |
| 04/07/2011 | DE102009043568A1 Hydraulic pipe, pipeline or hose rupture safety valve for lorry, has locking pistons kept in positions when medium flows with given flow rate, where medium flows from supply channel into drainage channel and vice versa in positions |
| 04/06/2011 | CN201786814U Controllable type anti-explosion valve for hydraulic pump station |
| 04/06/2011 | CN1869459B Oil-hydraulic pump, oil-hydraulic pump unit, and oil-pressure driving apparatus |
| 04/06/2011 | CN102007304A Method for controlling an actuator |
| 04/06/2011 | CN102003435A Hydraulic pump station for rail welding vehicle |
| 03/31/2011 | WO2011037287A1 Fail safety actuator |
| 03/30/2011 | CN101994727A Balance valve having two-stage pressure buffering protection function |
| 03/24/2011 | WO2011032364A1 Safety control double valve for power-off protection press |
| 03/22/2011 | CA2454908C Lifting apparatus |
| 03/17/2011 | DE10163691B4 Hubeinrichtung Lifting device |
| 03/09/2011 | CN101162025B 复合安全阀 Composite valve |
| 03/03/2011 | DE102009039489A1 Verfahren zur Instandhaltung von Fluidanlagen Procedures for the maintenance of fluid systems |
| 03/02/2011 | CN201753721U Pressure loss alarm device for main oil way of hydraulic system |
| 03/02/2011 | CN201753040U Packing case lifting safety control device |
| 03/02/2011 | CN101983289A Hydraulic actuator with floating pistons |
| 02/24/2011 | DE102007051525B4 Hydraulisches Versorgungssystem mit einer Verstellpumpeneinrichtung Hydraulic supply system with a Verstellpumpeneinrichtung |
| 02/23/2011 | EP1971783B1 Method for detecting clutch cylinder leakage |
| 02/23/2011 | CN201751601U Novel proportional overflow valve |
| 02/17/2011 | WO2011019644A2 Hold open configuration for safety valve and method |
| 02/17/2011 | WO2011018152A1 Pneumatic safety valve device |
| 02/17/2011 | DE102009037120A1 Pneumatische Sicherheitsventileinrichtung Pneumatic safety valve device |
| 02/16/2011 | EP2283239A1 Fault-tolerant bleed valve assembly |
| 02/16/2011 | CN201747702U Hydraulic safety valve |
| 02/16/2011 | CN201747302U Safe protection loop for opening hydraulic power tongs |
| 02/15/2011 | CA2459964C Method for restricting leakage of hydraulic oil in a rock drilling rig |
| 02/09/2011 | CN201739264U Oil line structure for power head motor on drilling machine |
| 02/09/2011 | CN101966972A Barrier-breaching jack for emergency rescue and disaster relief |
| 02/03/2011 | DE102009035810A1 Device for the provision of a hydraulic consumer of a vehicle equipped with an armor having fluid standing under pressure for military purposes, comprises a pressure conveying device, and a prestressing unit |
| 02/02/2011 | CN101962068A Hydraulic control system for fin stabilizer |
| 01/27/2011 | DE102009027935A1 Hydraulische Anordnung Hydraulic arrangement |
| 01/27/2011 | DE102007061869B4 Sicherheitsschwenkantrieb Security rotary actuator |
| 01/26/2011 | EP2278169A2 Hydraulic assembly with pressure relief means |
| 01/26/2011 | EP2276935A1 Control device and method for a quick-acting gate valve of a steam turbine |
| 01/26/2011 | CN201723527U Air cylinder emergency-stop control system and oxidation furnace door control system with the same |
| 01/26/2011 | CN201723517U Engineering vehicle execution oil cylinder safety hydraulic locking valve |
| 01/20/2011 | DE10001033B4 Hydraulischer Stellantrieb für eine Kraftfahrzeugservolenkung Hydraulic actuator for an automotive power steering |
| 01/19/2011 | EP2274521A1 Method for controlling an actuator |
| 01/19/2011 | CN201714748U Safety valve for multi-way valve |
| 01/19/2011 | CN201714747U Alarm device for hydraulic flow |
| 01/13/2011 | WO2011003506A1 Electro-hydraulic controller |
| 01/12/2011 | CN101943202A Link bolt with pilot type reducing valve |
| 01/05/2011 | EP2270342A1 Leakage detection system in a wind turbine |
| 01/05/2011 | EP2268927A1 Control arrangement for controlling a control valve |
| 01/05/2011 | DE10045232B4 Steuerungsvorrichtung für einen hydraulischen Volumenstrom Control device for a hydraulic volume flow |
| 01/05/2011 | CN201696396U Hydraulic valve for preventing pipeline from cracking of hydraulic pump station |
| 01/05/2011 | CN201696395U Anti-explosion valve capable of verifying anti-explosion effect for hydraulic pump station |
| 01/05/2011 | CN101936319A Main oil-passage no-pressure warning device of hydraulic system |
| 01/05/2011 | CN101498281B Direct drive type hydraulic variable pitch controlling mechanism for wind power generator |
| 12/30/2010 | DE102007061868B4 Druckgesteuerter Schwenkantrieb mit Sicherheitsvorrichtung Pressure controlled actuator with safety device |
| 12/29/2010 | WO2010149446A2 Control circuit for a pneumatic or hydraulic actuator |
| 12/29/2010 | CN201687810U Improved oil return valve |
| 12/29/2010 | CN201686439U Natural gas filling secondary station trailer jack-up device |
| 12/29/2010 | CN101929491A Balance valve with secondary pressure overflow |
| 12/29/2010 | CN101929488A Manual reset electro-hydraulic device |
| 12/29/2010 | CN101929487A Automatic reset electro-hydraulic device |
| 12/29/2010 | CN101927961A Two-valve grab hydraulic control system protection device |
| 12/29/2010 | CN101260897B Hydraulic safety valve |
| 12/23/2010 | US20100319794 Hose bend bleeder for ammonia application system |
| 12/23/2010 | DE102009027070A1 Ansteuerschaltung für einen pneumatischen oder hydraulischen Aktuator A drive circuit for a pneumatic or hydraulic actuator |
| 12/23/2010 | DE102005018889B4 Verfahren zum Nachversorgen eines Anhängers eines Nutzfahrzeugs mit Druckluft A method for Nachversorgen a trailer of a commercial vehicle with compressed air |
| 12/22/2010 | EP2263012A1 Hydraulic actuator with floating pistons |
| 12/22/2010 | EP1300519B1 Construction macine with a hydraulic circuit and attachment emergency drive method. |
| 12/22/2010 | CN201679783U Pilot oil supply system of loader |
| 12/22/2010 | CN101922480A Hydraulic reversing valve with overloading protecting function during pressure maintaining |
| 12/22/2010 | CN101225844B System and valve devcie for quickly and exigently closing hydraulic actuated valve |
| 12/22/2010 | CA2708002A1 Leakage detection system in a wind turbine |
| 12/09/2010 | DE10046853B4 Hydraulischer Servomotor mit separierten Arbeitsräumen Hydraulic Servo motor with separated workrooms |
| 12/08/2010 | CN101907119A Link bolt with unloading overflow valve |
| 12/08/2010 | CN101907114A Overload isolating valve |
| 12/02/2010 | US20100300084 Hydrostatic Pump |
| 12/01/2010 | CN201661550U Pneumatic safety device |
| 11/24/2010 | CN201650904U Balance valve with manual opening function and overload protection |
| 11/24/2010 | CN101893025A Link bolt capable of maintaining stable internal hydraulic pressure |
| 11/18/2010 | DE10356970B4 Steuervorrichtung für ein hydraulisches Ventil zum Halten einer Last A control apparatus for a hydraulic valve for holding a load |
| 11/17/2010 | EP2251550A2 Hydraulic system and mobile construction machine |
| 11/17/2010 | EP2251299A1 Pressure energy reservoir |