Patents
Sitemap › F15 - Fluid-pressure actuators; Hydraulics or pneumatics in general › F15B - Systems acting by means of fluids in general; Fluid-pressure actuators, e.g. servomotors; Details of fluid-pressure systems, not otherwise provided for › F15B 1 - Installations or systems with accumulators; Supply reservoir or sump assemblies
Patents for F15B 1 - Installations or systems with accumulators; Supply reservoir or sump assemblies (6,474)
05/1990
05/02/1990EP0295261B1 Pressure-balanced seals for vented accumulators
04/1990
04/19/1990DE3835222A1 Hydraulic oil tank
04/12/1990DE3833912A1 Tank container, in particular for hydraulic assemblies
04/11/1990EP0363279A2 Security system for an electric pump
04/11/1990EP0296200B1 Piston-type storage device
03/1990
03/28/1990EP0360648A1 Elastic impermeable membrane and hydropneumatic accumulator containing same
03/28/1990EP0308402B1 Multiple seal for a pressure vessel
03/13/1990US4907621 Bladder-type accumulator with movable cup-shaped sensor
03/07/1990EP0356780A2 Reservoir for a pressure fluid circuit, especially for an aircraft hydraulic circuit
02/1990
02/28/1990CN1007001B Rotary fluid transfer device
02/27/1990US4904150 Balancing unit for pivotable mechanical elements, such as doors, robot arms, etc.
02/27/1990US4903734 Pressure fluid reservoir
02/20/1990CA1265997A1 Subermerged hydroelectric plant for the control of a submarine oilwell plant
02/07/1990CN2052458U Energy saving hydraulic pressure installation
02/06/1990US4898078 Hydraulic system for a work vehicle
01/1990
01/31/1990CN2052082U Booster-type accumulator
01/25/1990WO1990000693A1 A combination seal for sealing between two machine parts
01/25/1990DE3824499A1 Gas accumulator for fluids with a separating piston
01/03/1990EP0349067A1 A hydraulic actuating unit, in particular for raising a load, such as a hospital bed
12/1989
12/28/1989DE3920030A1 Hydraulic energy-storage system
12/27/1989EP0347872A1 Ventilating device for an oil tank preferably made of plastics
12/21/1989DE3820659A1 Operating method for a filling member of an accumulator in a motor vehicle
12/07/1989DE3817658A1 Valve arrangement in a hydraulic system
11/1989
11/21/1989US4881725 Accumulator piston having a coil spring secured thereto
11/14/1989US4880503 Hydraulic reservoir
11/07/1989US4878519 Piston accumulator
10/1989
10/31/1989US4877055 Leakage device for the drainage of a diaphragm accumulator
10/24/1989US4875665 Accumulator
10/10/1989US4872486 Accumulator having inclined communication holes
09/1989
09/26/1989US4870390 Device for detecting leakage of precharged gas from gas-type accumulator
09/21/1989WO1989008783A1 A method of reducing pressure drop during the passage of a fluid, and a hydraulic system reservoir for circulation of a fluid
08/1989
08/24/1989DE3902512A1 Hydropneumatic accumulator
08/22/1989US4858898 Accumulator
08/16/1989EP0327774A1 Drain device for discharge of diaphragm accumulator
08/01/1989US4852615 Hydropneumatic accumulator
07/1989
07/26/1989EP0325530A1 Pressure accumulator with a valve
07/18/1989US4848847 Pressure supply system especially for brake systems of motor vehicles
07/13/1989DE3834918A1 Circuit arrangement for controlling a hydraulic drive motor with energy recovery during the braking process
07/06/1989DE3833653A1 Hydraulic accumulator
07/06/1989DE3744179A1 Mounting and filling device for a hydropneumatic piston accumulator
07/06/1989DE3744178A1 Hydraulic accumulator-charging valve
06/1989
06/28/1989EP0322294A1 Method for mounting a hydropneumatic accumulator
06/15/1989DE3805290A1 Arrangement for actuating at least one linear motor, in particular for a metering device
06/13/1989US4838316 Accumulator provided with an insert
06/13/1989US4838298 Hydraulic latch device
06/13/1989US4838023 Fluid pressure circuit with accumulator charging and safety valve system including check valve bypass
05/1989
05/24/1989EP0316500A1 Control device for a piston located in a cylinder
05/09/1989US4827719 Closed hydraulic system with drying means
04/1989
04/26/1989EP0313539A1 A device for neutralizing metal chips in a pressure liquid accumulator
04/25/1989US4823827 Float system for accumulator
04/20/1989WO1989003483A1 Float accumulator
04/20/1989DE3807316A1 High-pressure accumulator for hydraulic systems
04/20/1989DE3807315A1 High-pressure accumulator for hydraulic systems
04/20/1989DE3807314A1 High-pressure accumulator for hydraulic systems
04/20/1989DE3807313A1 High-pressure accumulator for hydraulic systems
04/11/1989US4819697 Helium charged hydraulic accumulators
04/06/1989WO1989002993A1 Retainer assembly
04/05/1989EP0309729A2 Dual-pressure supply system in a motor vehicle
04/04/1989US4817830 Pressure vessel with a bladder
03/1989
03/14/1989US4811652 Constant differential overpressure device
03/09/1989DE3728555A1 Piston accumulator for hydraulic oil
03/07/1989US4809745 Oil container for the supply of hydraulic power circuits
03/01/1989CN2033456U Sort of hydraulic generator system
02/1989
02/14/1989US4804520 For use in guidance vane-actuator systems of missiles
02/09/1989WO1989000945A1 Marine power steering system
02/08/1989CN1030882A Hydraulic press with superhigh pressure for rolling mill
01/1989
01/31/1989US4800642 Method of producing a hydropneumatic accumulator
01/17/1989US4799048 Accumulator
01/11/1989EP0298635A2 Variable volume reservoir and method for its use
01/03/1989US4794883 Dual reservoir tank for propellant hydraulic fluid for internal combustion engine hydraulically driven cooling fan and for power steering actuating fluid
12/1988
12/29/1988WO1988010373A1 Combination accumulator and variable volume sump
12/28/1988EP0296744A2 Hydraulic latch device
12/28/1988EP0296200A1 Piston-type storage device.
12/27/1988US4793381 Bladder supporting device in an accumulator
12/20/1988US4792281 Wind turbine pitch control hub
12/14/1988EP0295176A1 Pneumatically actuated valve and a hydropneumatic accumulator with such a valve
12/13/1988US4790704 Retainer assembly
12/13/1988CA1246497A1 Method for feeding hydraulic fluid, both continuously and by means of controlled impulses, to activate a hydraulic lift working normally in a continuous mode, and apparatus forthe implementation of said method
12/06/1988US4788851 Pressure vessel incorporating a sensor for detecting liquid in a gas chamber
11/1988
11/15/1988US4784182 Bladder type accumulator associated with a sensor
11/01/1988US4781061 Process for monitoring the gas volume in an hydropneumatic accumulator and apparatus for carrying out the process
10/1988
10/20/1988WO1988008096A1 Diaphragm
10/19/1988EP0286777A2 Piston-cylinder unit
10/18/1988US4777983 Apparatus and method of an accumulator with rigid secondary diaphragm
10/18/1988US4777982 Elastic separating wall
10/18/1988US4777800 For deep sea use
09/1988
09/22/1988DE3707803A1 Hydraulic accumulator
09/21/1988EP0282626A2 Valve for a pneumatic chamber of a hydropneumatic shock absorber
09/15/1988DE3706705A1 Bladder accumulator
09/13/1988US4769990 Combination accumulator and variable volume sump
09/07/1988EP0281052A1 Tank for hydraulic systems with high safety against infiltration of air from outside
09/06/1988US4768616 Acoustic filter
07/1988
07/26/1988US4759387 Pulsation absorbing device
07/14/1988WO1988005134A1 Piston-type storage device
07/05/1988CA1238837A1 Hydraulically operated percussive machine and an accumulator therefor
06/1988
06/30/1988DE3642882A1 Heatable or coolable hydraulic accumulator
06/28/1988CA1238678A1 Pre-pressurized accumulator for hydraulic brake system
06/22/1988EP0271702A2 Oil container for supplying hydraulic working circuits serving for accumulation and resumption of returned oil
06/21/1988US4751939 Immersed hydraulic unit for controlling an underwater oil working station
06/21/1988CA1238258A1 Shut-off valve
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