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WO/2013/057558A1 |
An air bleed valve (50) having a housing with hydraulic fluid there in and a first acoustic wave sensor (57) mounted within the housing so as to be covered in the hydraulic fluid and a second acoustic wave sensor (56) mounted within the ...
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WO/2013/055156A1 |
The present invention relates to a hydraulic control device using a hydraulic actuator, provides a hydraulic control device using a hydraulic actuator, and comprises: a hydraulic actuator having a clearance pocket; an oil supply line and...
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WO/2013/054262A1 |
A hydraulic accumulator including an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding secon...
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WO/2013/046630A1 |
A hydraulic pressure unit (10) is provided with a power module (53) for generating heat when electrified. This power module (53) is positioned on the bottom surface of a recess (35) in contact with hydraulic fluid in a tank (30). Therefo...
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WO/2013/048285A1 |
The device for the recovery of hydraulic energy comprises at least one hydro-pneumatic accumulator, the body of which is provided with a fluid port connected to a fluid reservoir of the accumulator, said reservoir being separated by a mo...
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WO/2013/041493A1 |
An oil level control device in a main tank of a supply circuit, the supply circuit comprising: a main tank (4); a first pump (1) which, in aspiration, is connected to the main tank (4); a main hydraulic circuit (100), which is connected ...
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WO/2013/038608A1 |
The present invention reliably cools a power conversion component. The hydraulic unit (10) is provided with: an oil tank (20) for retaining the oil (11); an oil pump (30) for circulating the oil (11) between the oil tank (20) and an obje...
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WO/2013/026521A1 |
A pressure vessel which is provided preferably for use in bladder accumulators (27), having a multi-part vessel body (1) composed of a tubular central part (3) which, at at least one of its two ends, has a termination region (5, 7), is c...
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WO/2013/025459A1 |
A hydraulic system including an accumulator and a hydraulic transformer is disclosed. The hydraulic transformer includes first and second variable displacement pump/motor units mounted on a rotatable shaft. The rotatable shaft has an end...
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WO/2013/023366A1 |
A brake valve assembly comprises an accumulator (52) for storing oil, a pressure detector for detecting pressure of the oil in the accumulator, a liquid charging valve (40a, 40b) arranged on a liquid charging oil passage of the accumulat...
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WO/2013/025416A2 |
A hydraulic system adapted to recover inertial energy is disclosed. The hydraulic system includes a pump, a variable displacement pump/motor having an input/output shaft, an accumulator, and a valve arrangement. The valve arrangement is ...
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WO/2013/009467A2 |
A method for estimating a fluid charge of a hydraulic accumulator includes determining a first accumulator pressure at a first time with a pressure sensor, the first time during accumulator charging; determining a second accumulator pres...
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WO/2012/171618A1 |
The invention relates to a device (1) for hydraulically actuating a shut-off element and/or a turbine control system in a hydroelectric power plant, and comprising at least one dual-action hydraulic cylinder (2) with a displaceable pisto...
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WO/2012/167868A1 |
The invention relates to a pressure vessel for receiving at least one fluid medium, and comprising a first shell (1) and a second shell (3) that at least partially encompasses said first shell (1), the first shell (1) having, at least at...
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WO/2012/164196A2 |
The invention relates to a hydraulic system (15) comprising: an accumulator (32) in which a sliding piston (28) defines a chamber (22), known as a pressurised chamber, and said piston can be urged in order to pressurise a hydraulic fluid...
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WO/2012/166520A2 |
A hydraulic fluid system (150) for a mobile machine (100) includes a closed loop hydraulic fan circuit (10). The hydraulic fan circuit (10) includes a primary pump (14), a motor (18) fluidly connected to the primary pump (14), and a fan ...
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WO/2012/159455A1 |
A hydraulic-pressure storage reservoir based on a pressure-storing liquid, and a hydraulic system, that utilize the high pressure and compressibility of the pressure-storing liquid to store hydraulic pressure by means of the hydraulic-pr...
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WO/2012/156615A2 |
The invention relates to the field of rocket motor fuel supply systems and, in particular, to a fuel supply system having a supply circuit (4) comprising a device for varying a volume of gas in the circuit (4) in order to eliminate the P...
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WO/2012/149994A1 |
The invention relates to a media separating device (1), in particular a hydraulic accumulator (3), having a movable separating means (5) for separating two media (7, 9) which are received in media chambers (11, 13) differing from each ot...
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WO/2012/150013A1 |
Sensor device (1) for detecting flowable media (3, 3'), and pressure device (5) and measuring method for operating the sensor device (1). A sensor device (1) for detecting flowable media (3, 3'), in particular in the form of fluids (9) w...
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WO/2012/146837A1 |
The invention relates to the automatic reloading of the gas space of a hydropneumatic accumulator. A means (20) for readjusting the load of the gas space (13) includes a pressurized gas source (22), connected to a loading valve (17) via ...
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WO/2012/148882A1 |
An accumulator (14) includes a non - cylindrical outer vessel (86) defining a gas -filled interior chamber (90), and an inner member (122) positioned in the gas-filled interior chamber. The inner member has a gas - receiving portion (166...
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WO/2012/143171A1 |
A piston accumulator (1) for the hydraulic or pneumatic storage of energy is described, wherein a separating element (5) can be displaced within an accumulator housing (3) along a displacement direction (7). In this case, a current posit...
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WO/2012/142918A1 |
Disclosed is a pneumatic control system for a dust collector, comprising a first gas-supply device, at least one slag-flushing gas control valve (5) connected to the first gas-supply device for controlling a slag-flushing gas switch, and...
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WO/2012/139215A1 |
An apparatus (100), comprising: a pressure-control assembly (104) having: a first interface unit (105) being configured to interface, in use, with a fluid-bottle assembly (102); and a second interface unit (107) being configured to inter...
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WO/2012/140178A1 |
The invention discloses a system and method for controlling a wellbore. The method comprises the steps of: providing a capping stack comprising a number of releasable modules, each module having a size and weight within predetermined lim...
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WO/2012/138264A1 |
The invention relates to an arrangement for charging an accumulator (10) with hydraulic fluid. The accumulator (10) is used in a hydraulic boom suspension system (3) for a lift arm (55) of a vehicle (50) and the arrangement comprises a f...
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WO/2012/130383A1 |
Proposed is an autarkic electropneumatic working device (1) which has an electrically actuable compressed-air generating device (12) which is supplied with electrical energy by at least one regeneratively operating energy converter devic...
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WO/2012/134338A1 |
The invention relates to mechanical engineering and can be used in hydraulic systems for transferring hydraulic energy between working liquids with different temperatures with reduced heat exchange between said working liquids. The probl...
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WO/2012/135000A2 |
A system (55) for controlling power in a machine (10) includes a controller (58) configured to compare at least one of the following: a combined requested power level of a sum of a requested hydraulic power level and a requested electric...
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WO/2012/126266A1 |
Disclosed in the present invention is a lifting system for a jib of project machine. which comprises an energy storage device with an energy storage cylinder(4) and an accumulator (7),wherein the energy storage cylinder (4) comprises an ...
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WO/2012/123665A1 |
The invention relates to a hydraulic drive system for motor vehicles. The system comprises: a motor (2) driving a hydraulic pump (4) for recharging pressure accumulators (22, 26); and at least one hydraulic traction motor (40, 60) drivin...
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WO/2012/119121A2 |
A system for producing pressurized gas(es) from polar molecular liquids without the need to compress the gas(es) through outside mechanical forces or through the use of electrical energy or otherwise. The system incorporates an electroly...
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WO/2012/114913A1 |
[Problem] A hydraulic oil tank for a construction machine, capable of preserving the strength of a gauge arrangement section and, while in a state maintaining a prescribed clearance between an external cover and the hydraulic oil tank, c...
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WO/2012/105933A1 |
The invention is a combination accumulator and reservoir which stores energy when the accumulator deforms from its original shape in response to the flow of a pressurized fluid from the reservoir. The stored energy is returned when the f...
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WO/2012/100915A1 |
The invention relates to a device for transferring a hydraulic working pressure in a pressure fluid for pressure actuating hydraulic units of deep sea systems, in particular deepwater wells, wherein a first pressure chamber (19) for the ...
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WO/2012/102654A1 |
The invention describes an integrated electro-hydraulic hybrid system (100) to store and produce energy. The integrated electro-hydraulic hybrid system (100) includes a hydraulic accumulator (102), a hydraulic pump/motor (112) operativel...
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WO/2012/095577A1 |
The invention relates to a system for accumulating hydraulic pressure, including at least two basic pressure accumulators (2) which are connected together and each of which comprise a connection opening (4) arranged along a main axis (A)...
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WO/2012/095271A1 |
The invention relates to a hydraulic accumulator system comprising a high-pressure accumulator (4), a low-pressure accumulator (5) and at least one hydrostat (6). In order to reduce an undesired leakage during the operation of the hydrau...
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WO/2012/091644A1 |
The invention is related to a hydraulic system and a method for reducing the amount of hydraulic fluid that could accumulate by condensation in a high pressure accumulator in the hydraulic system. The hydraulic system incorporates a hydr...
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WO/2012/079813A1 |
The invention relates to a pulsation damper (10) of a vehicle braking system, having a connection (14) for supplying and discharging fluid into a damper chamber (12), wherein said pulsation damper is characterised according to the invent...
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WO/2012/076436A1 |
The invention relates to a hydraulic accumulator device in the form of a membrane accumulator, comprising a membrane (16) which separates a pneumatic volume from a hydraulic volume. In order to improve said hydraulic accumulator device w...
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WO/2012/076459A1 |
The invention relates to a bladder accumulator with a housing (4) in which a bladder (5) is arranged. In order to provide a bladder accumulator which is constructed in a simple manner and can be produced cost-effectively, the bladder (5)...
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WO/2012/078048A1 |
The invention relates to a method of condition-monitoring hydraulic accumulators (4A/B). The gas content of the accumulators (4A, 4B) is monitored by the gas volume being calculated on the basis of the weight and working pressure of the ...
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WO/2012/075441A1 |
A regenerative hydraulic pump that allows for efficient operation of a hydraulic system under high pressure/low flow conditions that comprises a crankshaft providing a rotating inertial mass, and a regenerative hydraulic pump cylinder th...
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WO/2012/073110A2 |
A hydraulic fan circuit (10) is disclosed. The hydraulic fan circuit may have a primary pump (14), a high-pressure passage (26) fluidly connected to the primary pump, and a low-pressure passage (24) fluidly connected to the primary pump....
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WO/2012/069211A1 |
A hydraulic actuating system is proposed, in particular for gas exchange valves of reciprocating-piston internal combustion engines, having a pressure source for the hydraulic medium and having at least one pressure accumulator which can...
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WO/2012/065240A1 |
A hybrid power source includes an electric power source, a first hydraulic pump powered by the electric power source, a hydrocarbon burning power source, and a second hydraulic pump powered by the hydrocarbon burning power source. A hydr...
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WO/2012/059360A1 |
The invention relates to a piston accumulator for inserting into a receiving bore (5) in a hydraulic unit, with an axially movable piston (3), a cover (1) closing the receiving bore (5) for the piston accumulator, and with a spring (2) a...
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WO/2012/052488A1 |
The invention relates to a hydraulic unit for a motor vehicle brake system which operates according to the feedback principle, for which purpose a low-pressure accumulator (26) is provided between the outlet valves (23) of the wheel brak...
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