Patents
Patents for F15B 3 - Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids (1,558)
03/2003
03/27/2003US20030056508 Multilevel speed regulation jack and method of operation
03/19/2003WO2002024441A1 Controller for a hydraulic press and method for the operation thereof
03/19/2003CA2422879A1 Controller for a hydraulic press and method for the operation thereof
03/12/2003CN2539867Y Cavitation-proof pressure-producing flow-increasing type switch hydraulic source
02/2003
02/27/2003US20030038258 Valve for controlling fluids
02/19/2003CN2536826Y Gasoline transition booster cylinder
01/2003
01/30/2003WO2003008076A1 Dual head pump driven membrane system
01/30/2003CA2492777A1 Dual head pump driven membrane system
01/14/2003US6506237 Pressure transmission apparatus
01/09/2003WO2003002876A1 Booster
01/08/2003CN1098423C Automatic changing-over system for hydraulic orphenumatic driven pump and gas compressor
12/2002
12/19/2002DE10128867A1 Hydraulic control system for vehicle automatic gearboxes has a pressure maintenance reservoir with a piston operated by the main hydraulic pump.
12/11/2002EP1019636B1 Pressure exchanger
12/11/2002CN1384315A 小型压力调节器 Small pressure regulator
12/05/2002US20020178719 Diamond-shaped fluid powered linkage, system and engine
12/03/2002US6488258 Releasable check valve for very high system pressures
11/2002
11/21/2002WO2002029254A3 Valve for controlling fluids
11/19/2002US6481669 Pneumatic actuator for a stores carriage and ejection system
10/2002
10/31/2002WO2002086326A1 Hydraulic pressurization system
10/31/2002CA2442393A1 Hydraulic pressurization system
10/24/2002WO2002084128A1 A pneunatic-hydraulic pressure amplifier
10/23/2002CN1375640A Pressure-reducing and flow rate-increasing swtich liquid pressure source with oil returning back pressure
10/08/2002US6460333 Hydraulic pressure transformer
10/02/2002CN2514154Y Cylinder pressure multiplier for puncher
09/2002
09/26/2002US20020134953 Valve for controlling fluids
09/25/2002EP1242746A1 Method and apparatus for generating hydraulic pressure
09/18/2002EP1240448A1 Seal assembly
09/18/2002EP1240435A1 Diamond-shaped fluid powered linkage, system and engine
09/12/2002DE10200137A1 Pressure translator for e.g. stamping, embossing and drawing has piston with at least one cylinder, and pressure discharge with translating piston
09/11/2002CN2510658Y Electrohydraulic network linear unit
08/2002
08/07/2002CN2504421Y Gas-liquid pressurizing cylinder
07/2002
07/24/2002CN1360157A Motor-driven actuator with hydraulic amplification
07/24/2002CN1088150C Hydraulic stepped piston arrangement and its use in drive with variable thrust force
07/23/2002CA2332018A1 Liquid piston hydraulic system
07/16/2002CA2237858C Pressure transmission apparatus
07/11/2002WO2002053920A2 Pressure transformer
07/04/2002WO2002052158A2 Hydraulic pressure transformer
07/03/2002CN2498383Y Hydraulic device of steel ball machining apparatus
07/02/2002CA2211884C Subsurface safety valve actuation pressure amplifier
06/2002
06/27/2002US20020078686 Hydraulic pressure transformer
06/20/2002DE10135516A1 Drive for closure-, injection- or ejection units of pressure injection molding machine has electric motor selectively displacing nested concentric piston-cylinder arrangement
06/12/2002CN2494886Y Hydraulic oil cylinder with adjustable installation extension rod
06/12/2002CN1353799A Stud tensioning device for flange cover
05/2002
05/29/2002EP1208321A1 Valve for controlling liquids
05/23/2002WO2002040872A1 Power enlarging method
05/23/2002DE10154991A1 Motorbetriebene Betätigungsvorrichtung mit hydraulischer Kraftverstärkung The motor-driven actuator with hydraulic booster
05/15/2002CN2491637Y Water/oil energy converter of hydraulic automatic pressurizer
05/09/2002US20020053205 Motor-driven actuator with hydraulic force amplification
05/02/2002DE10048933A1 Ventil zum Steuern von Flüssigkeiten Valve for controlling fluids
04/2002
04/17/2002EP1197668A1 Hydraulic lock device
04/11/2002WO2002029254A2 Valve for controlling fluids
04/11/2002DE10049171A1 Pressure carrier converter to change gas to liquid has inflow and outflow of gas and liquid regulated by large-surface small borings or porous material
04/10/2002CN2485470Y Pneumatic hydraulic pressure sensing and enhancing driving device
04/03/2002CN1343284A Control system for hydraulic transformer
04/03/2002CN1082000C Improved pressure-boosting mechanism for gas pressure to liquid pressure
03/2002
03/27/2002EP1190829A2 Pressing method, pressing mechanism and resin molding device
03/27/2002CN1081759C Valve driving apparatus
03/26/2002US6360536 Control system for a hydraulic transformer
03/14/2002US20020029569 Pressure intensifying apparatus for hydraulic cylinder
02/2002
02/28/2002US20020023535 Pressing method, pressing mechanism and resin molding device
02/14/2002WO2002011970A1 Drive mechanism, particularly for a closing unit, an injection unit or an ejector of a plastic injection moulding machine
01/2002
01/30/2002EP1175565A1 Device for converting pneumatic energy into hydraulic energy
01/30/2002CN2474764Y Gas liquid booster cylinder possessing overstroke alarming function
01/30/2002CN2474273Y Improved pressurizing unit
01/30/2002CN2474272Y Pressurizing unit
01/23/2002EP1173695A1 Stud tensioning device for flange cover
01/23/2002CN2473367Y Gas/liquid pressure booster
01/10/2002DE10032024A1 Device for increasing the input pressure of a pneumatic medium for use in pressure testing, rupture testing, etc., can be made with commercially available components to reduce production costs while offering a wide operating range
12/2001
12/20/2001DE10028768A1 Valve for controlling liquids has a piezo actuator in an actuator bore, a hydraulic pressure intensifier with first and second pistons and a pressure area between these pistons and metal bellows.
12/13/2001WO2001094821A1 Valve for controlling liquids
11/2001
11/28/2001CN2462120Y Multicylinder single arranged hydraulic booster
11/15/2001DE10023297A1 Hydraulically driven pressure intensifier; has primary part whose primary fluid power is transmitted to secondary fluid of secondary part and has additional element rigidly arranged without piping
10/2001
10/31/2001CN2457386Y Swing ream rod pressure boost mechanism
10/10/2001EP1141549A1 Device for converting energy being stored in compressed air into mechanical work
10/04/2001EP1138872A1 Well tool actuators and method
10/03/2001CN2451789Y High-low pressure converter
10/03/2001CA2304407A1 Multi-piston intensifier
10/02/2001US6295914 Pressure intensifier for fluids, particularly for hydraulic liquids
09/2001
09/27/2001WO2001071199A1 Hydraulic lock device
09/26/2001EP1135614A1 Releasable check valve for very high system pressures
08/2001
08/07/2001US6270323 Hydraulic power conversion device
07/2001
07/12/2001WO2001050033A1 Pressure booster
06/2001
06/28/2001WO2001046594A1 Diamond-shaped fluid powered linkage, system and engine
06/26/2001US6250199 Subsea power module
06/21/2001DE19939478C1 Valve for regulation of fluids, e.g. for fuel injection valves has separate hydraulic converter with third piston element between pressure chambers
06/14/2001WO2001042690A1 Seal assembly
06/14/2001WO2001042662A1 Method and apparatus for generating hydraulic pressure
06/06/2001CN1298475A Hydraulic locking device
05/2001
05/23/2001DE19956191A1 Forming method for hollow metal tubes etc. has hydraulic pressure intensifier to heat and to form workpiece
05/22/2001US6234125 Apparatus for angular adjustment of camshafts relative to crankshafts in combustion engines
05/17/2001WO2000065255A9 Stud tensioning device for flange cover
05/08/2001US6227112 Apparatus for performing actuations or operations in a printing press
05/01/2001US6223925 Stud tensioning device for flange cover
04/2001
04/25/2001CN1292463A Power amplification method
04/19/2001DE19948747A1 Safety reset system of pneumatic valve actuator, includes compressed air reservoir for resetting
04/10/2001CA2187001C An improved pneumatic pressure to hydraulic pressure intensifier mechanism
03/2001
03/29/2001US20010000061 Preventing bleeding; self-dispersing pigment dispersed in an aqueous medium; alkali metal salt to break the dispersion stability of the pigment
03/28/2001CN1063834C Hydraulic automatic control high-pressure reciprocating pump
03/22/2001DE19939477A1 Ventil zum Steuern von Flüssigkeiten Valve for controlling fluids
03/01/2001WO2001014774A1 Valve for controlling liquids
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