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WO/2011/044042A1 |
An expandable accumulator and reservoir assembly includes a reservoir defining an interior chamber containing working fluid therein and an expandable accumulator. The expandable accumulator includes an inner layer and an outer layer at l...
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WO/2011/038706A1 |
The invention relates to a hydraulic control system, comprising a pressure accumulator (4), which is filled by means of an accumulator charging valve (16) using an electrically driven pump (10). The accumulator charging valve is connecte...
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WO/2011/038997A1 |
The aim of the invention is to design a compact and light-weight hydraulic accumulator arrangement (1) of a hydraulic brake, comprising a high-pressure storage chamber (3), a medium-pressure storage chamber (4), and an ambient-pressure s...
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WO/2011/023747A1 |
The invention provides a hydropneumatic accumulator for storage and delivery of hydraulic energy, comprising a cylindrical accumulator chamber (1,2) inside a wall part (3) and one or two end sections, a piston (4) arranged in the accumul...
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WO/2011/022052A2 |
This invention relates to a Compressed Air Turbine-Generator, or CAT-G that will enable the ability to manage energy gathered from ecologically friendly sources, such as solar and wind power. Compressed Air Energy Storage, (C.A.E.S.), is...
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WO/2011/012370A2 |
The invention relates to a device (11) for the variable adjusting of the control timing of gas exchange valves (9, 10) of an internal combustion engine (1) with a drive element (13), an output element (14), at least one pressure chamber ...
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WO/2011/009664A1 |
Method for operating a pneumatic system comprising at least one pneumatic cylinder, the method comprising: supplying a first gas under pressure to a pneumatic cylinder for a first stroke, wherein the first stroke is a working stroke of s...
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WO/2011/002552A1 |
Methods and apparatus to charge accumulators are described An example system to charge an accumulator apparatus (100) includes a piston (104) disposed within a housing (102) to define a first chamber adjacent a first side (106) of the pi...
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WO/2010/140996A1 |
A sealed hydraulic tank system for a mining shovel (10) includes an upper tank (68) and a lower tank (70). An air bladder (69) system is coupled to the upper tank to exchange air between the tank system and the bladder. The tanks include...
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WO/2010/136254A1 |
A method is described for monitoring the function of a hydraulic system of a machine, in particular a machine for producing a fibrous material web, such as a paper or cardboard machine. In order to control work fluid pressures, the hydra...
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WO/2010/136273A1 |
The invention relates to a hydraulic system for a paper or cardboard making machine, comprising at least one hydraulic actuator (3) and at least one accumulator (11, 12) for storing a hydraulic working fluid under pressure, at least one ...
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WO/2010/134840A1 |
A device for fluid power recuperation comprises a hydropneumatic accumulator (1) communicating via its gas port (7) with a gas receiver (8) which is made in the form of an aggregate of cells (9) communicating with the gas port of the acc...
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WO/2010/133826A1 |
A bladder (4) accumulator comprises a fluid port assembly (12), for communicating between a main housing (2) of the accumulator and a connection arrangement of the accumulator. An isolation valve arrangement (24, 26) is located within th...
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WO/2010/130332A1 |
A hydraulic accumulator comprises a first housing shell (2) and a second housing shell (3), the opening edges (5, 6) of which overlap in relation to the longitudinal axis (4) of the hydraulic accumulator (1) in such a way that they defin...
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WO/2010/128222A2 |
The invention relates to a system for storing energy, in particular mechanical energy, comprising a series of containers (14, 15, 16) inside an insulated chamber (11), a medium (10) for storing thermal energy, a tank (13) containing a hy...
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WO/2010/127660A2 |
The present invention relates to a hydraulic accumulator (1) for a hydraulic system containing a pressurized fluid, comprising at least one pressure chamber (13) which is formed between two opposing displaceable delimiting surfaces, each...
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WO/2010/117853A1 |
The invention is an accumulator which stores energy by deforming from its original shape in response to the flow of a pressurized fluid. The stored energy is returned when the fluid flow is reversed and the accumulator returns to its ori...
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WO/2010/115422A1 |
The invention relates to an oil tank made, as known, per se, of a tank housing (1; 2) for receiving a store of oil, wherein the tank housing (1; 2) is formed of a lower housing part (1) and an upper housing part (1) adhesively or form-fi...
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WO/2010/106226A2 |
The present invention relates to a hydraulic actuator arrangement (10), comprising a hydraulic actuator (12, 15, 55, 56) and a control device (14) to control the flow of hydraulic medium to and/or from the hydraulic actuator. The hydraul...
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WO/2010/105155A2 |
Generally, the invention relates to power generation and energy storage. In particular, to systems and methods for providing constant power from hydraulic inputs having widely-varying pressures. More particularly, the invention relates t...
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WO/2010/102957A1 |
The invention relates to an arrangement (10) for supplying a hydraulic system with hydraulic fluid, comprising a working reservoir (12) for accommodating the hydraulic fluid provided for the operation of the hydraulic system and comprisi...
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WO/2010/097256A1 |
The invention relates to a mobile hydraulic system for a hybrid vehicle, comprising a hydraulic accumulator device (22), which comprises a high-pressure accumulator chamber (34) and a low-pressure accumulator chamber (35), between which ...
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WO/2010/097153A1 |
The invention relates to a hydraulic accumulator (1) for receiving at least one partial volume of a fluid under pressure, in particular a hydropneumatic accumulator, the hydraulic accumulator (1) comprising a housing (12) having at least...
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WO/2010/089518A1 |
The invention relates to a hydraulic system for a handling machine (1) that comprises a mobile element (10) driven by first and second cylinders (13) mounted in parallel and mechanically coupled. The first cylinder is hydraulically drive...
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WO/2010/087934A1 |
A method of varying a charge in an accumulator includes providing an accumulator containing working fluid and gas, providing a reservoir containing gas, transferring gas from the reservoir to the accumulator to increase the gas pressure ...
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WO/2010/080803A1 |
An exemplary hydraulic reservoir includes a reservoir tank having an interior cavity for retaining a fluid and an aperture fluidly connecting the interior cavity to an exterior region of the reservoir. A cover selectively engages the res...
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WO/2010/077199A1 |
An accumulator membrane unit (2) for inclusion into an accumulator chamber (6) in an accumulator (1) for storing hydraulic energy under pressure. The accumulator membrane unit includes membrane elements (3) that are sealingly joined at t...
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WO/2010/066321A1 |
The invention relates to a hydraulic accumulator, in particular in the form of a bellows accumulator, in which the bellows (13) which serves as a movable separating element between a gas side (11) and a fluid side (21) has, at that bello...
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WO/2010/060973A1 |
In order to provide a buffer reservoir for a hydraulic actuation device, in particular for a clutch or brake actuation device of motor vehicles, comprising an outlet that can be connected to an actuation cylinder, a container body that s...
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WO/2010/061770A1 |
An accumulator provided with an emergency safety mechanism capable of being activated at a pressure lower than the pressure in the case in which a stay is provided with a rupture plate. An accumulator comprising: an accumulator housing;...
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WO/2010/057486A1 |
The invention relates to a hydraulic unit (1) for actuating at least one displaceable component, particularly a vehicle device that moves during a roof motion of a cabriolet vehicle, having a tank (15) containing a hydraulic medium and h...
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WO/2010/051907A1 |
The invention relates to a device for compensating for hydraulic effective pressures in a hydraulic accumulator (9) and a hydraulic actuator (5) of a hydraulic system (11, 13) having a valve arrangement (27) for blocking a connection bet...
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WO/2010/041975A1 |
A hydropneumatic accumulator includes a shell in which gas and fluid ports are connected, respectively, with gas and fluid reservoirs of variable volume separated by a movable separator. The gas reservoir contains a compressible regenera...
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WO/2010/040800A1 |
The invention provides a reliable means for measuring the available fluid volume in a hydraulic accumulator. The displaceable part (5) of a piston (4) in an accumulator (1), which separates the fluid volume (2b) from the gas volume (2a),...
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WO/2010/040040A1 |
An accumulator for a hydraulic system includes a polymer liner defining a cavity. A metal bellows assembly is housed in the cavity and separates the cavity into a first chamber and a second chamber, with the first and second chambers iso...
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WO/2010/024692A1 |
The invention relates to a method of using new flushing ports (IA7 IB) when cleaning a piston accumulator (7). Dirty hydraulic oil is returned out via the main port (2) and a return passage (9) until a cleanness grade has been reached. C...
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WO/2010/024712A1 |
A hydropneumatic accumulator with a flexible porous filler intended for fluid power recuperation in hydraulic systems with a high level of pulsations includes a shell where a gas port and a fluid port are connected, respectively, with a ...
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WO/2010/020376A1 |
The invention relates to a device for providing a pressure for a hydraulic consumer (2), wherein the device (1) has a tank (4) for providing hydraulic fluid. A hydropump (3) is fed from the tank (4), and is equipped for providing a press...
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WO/2010/015323A1 |
The invention relates to a control device for an apparatus, for example, a gas or steam turbine valve or in general a process fitting for controlling a process fluid, comprising an electric actuating drive and an emergency actuation devi...
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WO/2009/156017A1 |
The invention relates to a hydraulic aggregate, particularly for supplying conveyor and lifting devices with pressurized fluid, having a tank (1) on the end side relative to a main axis of the device and functional components mounted the...
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WO/2009/156062A1 |
The invention relates to a container for receiving, storing and dispensing liquids and viscous substances, in particular drinking water or fuel, with a casing (12) and at least one partition (14) which is arranged in an interior (16) of ...
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WO/2009/144524A1 |
A ground engaging work vehicle including a frame, a plurality of tractive elements, a movable extension, a hydraulic fluid using attachment, a hydraulic fluid pump and an accumulator. The plurality of tractive elements are coupled to the...
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WO/2009/139409A1 |
A hydraulic oil tank (15) adapted such that, without a change in the shape and the size of a tank body and without an addition of an external air tank, the volume of an air chamber is increased to suppress a variation in the pressure in ...
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WO/2009/132765A1 |
The invention is based on the problem of developing a vehicle in such a way that the expenditure is reduced for the recovery of energy during operation of the work hydraulics and the hydraulic traction drive and for the reuse of the reco...
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WO/2009/126784A2 |
The invention relates to methods and systems for the storage and recovery of energy using open-air hydraulic-pneumatic accumulator and intensifier arrangements that combine at least one accumulator and at least one intensifier in communi...
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WO/2009/126893A1 |
An exemplary hydraulic system (10) includes a plurality of digital valves (40, 70, 86, 100) each valve fluidly connectable to a corresponding hydraulic load (26,28,30). The digitals valves are operable to fluidly connect the correspondin...
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WO/2009/108830A1 |
This disclosure relates to a hydraulic system and method that converts the kinetic energy generated by the operation of a swing motor (11) into hydraulic potential energy and reuses the hydraulic potential energy for acceleration of the ...
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WO/2009/097117A1 |
A reservoir (112/212) for a hydraulic pump system includes a reservoir body (140/240), an inner wall (144/244) dividing an interior of the reservoir body into a first pressure chamber (148/248) and a second pressure chamber (152/252), an...
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WO/2009/094926A1 |
A machine (10), such as a wheel loader, including an implement hydraulic system (60) that includes a hydraulic boom actuator (15) and a hydraulic bucket actuator (14) is provided with a tool quick coupler (30). The tool quick coupler ass...
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WO/2009/077249A1 |
The invention relates to a pressure accumulator (12), especially for a hydraulic unit of a hydraulic vehicle braking system with electronic wheel slip regulation. Pressure accumulators (12) comprising an accumulator piston (22) acted on ...
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