A gas compressor includes an incompressible fluid source for storing an incompressible fluid. A rotary shaft is coupled to the incompressible fluid source. Operation of the rotary shaft draws the incompressible fluid up or down the rotary shaft. A piston chamber is coupled to each piston in a set of pistons. The incompressible fluid is delivered to the first piston by a controlled fluid valve assembly, to drive the first piston. The centripetal force from the rotation of the rotary shaft and the force of incompressible fluid from an impeller drive the first piston to compress a gas in the piston chamber of the first piston. The incompressible fluid is released from the first piston, by the controlled fluid valve assembly. The incompressible fluid is alternately delivered to the second piston to drive the second piston and compress gas.

A hose pump for the conveyance of a fluid conducted in a hose, with several squeezing elements and with a hose bed, which has a hose inlet, a hose outlet, a guide surface, and a counter support, in which the hose is placed lying on the guide surface and is pressed by the squeezing elements against the counter support for the conveyance of the fluid found in the hose when the hose pump is operated in a conveyance direction. The hose pump has a guiding-out device for the automatic guiding of the hose out of the hose bed, and the guiding out of the hose takes place by means of the guiding-out device during the operation of the hose pump opposite its conveyance direction. For the development of an as low-cost as possible but nevertheless reliable guiding-out device, an elevation, located on the hose outlet of the hose bed, is provided, which protrudes over the guide surface and via which the hose is conducted.

A method and apparatus for gas compression and expansion that simultaneously serves as storage tank for the compressed gas, and heat exchanger for heat transfer to the environment to maintain near-isothermal conditions.

A gas compression system is provided. The gas compression system includes a compressor, an adsorption device, and a fluid control device. The compressor includes a first port and a second port. The adsorption device is adapted to output the high pressure hydrogen gas to the first port and absorb the low pressure hydrogen gas from the second port. The adsportion includes a first container connected to the first port or the second port, and a second container connected to the first port or the second port. The first container and the second container includes a hydrogen adsorption material adapted to release the high pressure hydrogen gas when heated, and absorb the low pressure hydrogen gas when cooled. A method of using the gas compression system is also provided.

Several embodiments of a wobble plate motor include a disc mounted on a bent shaft. Driving the wobble plate so it revolves on a flat base causes the bent shaft to rotate and drive a generator or other work consumer. The wobble plate may be driven by a fluid stream impinging on the plate or by a blade assembly in a path of fluid movement. In one embodiment of a bladed motor, a shroud may direct the fluid stream so it more efficiently cooperates with the blade assembly.

The invention relates to a device (1) for transferring heat from a gaseous working medium (M2) to a heat-exchanger medium (M3) by compressing the gaseous working medium (M2), wherein the device (1) comprises: an operating line (AL), wherein the volume (V) enclosed by the operating line (AL) is divided into at least two sections, namely a first (AL-V1) and a second section (AL-V2), wherein the first section (AL-V1) is set up to hold a pressure-transfer medium (M1) and the second section (AL-V2) is set up to hold and discharge the gaseous working medium (M2), wherein at least one inlet and outlet valve (2) is provided for holding and discharging the gaseous working medium (M2), wherein a first volume delimited by the first section (AL-V1) is separated from a second volume delimited by the second section (AL-V2) by a first separating layer (T12) that can be displaced within the operating line (AL), wherein the first separating layer (T12) is arranged in such a way that pressure differences between the first (AL-V1) and second sections (AL-V2) of the operating line (AL) are equalized by a displacement of the first separating layer (T12) in the operating line (AL) and an accompanying change in the proportion between the first volume and the second volume is equalized, and comprising a heat-exchanger line (WL) to hold the heat-exchanger medium (M3), wherein the heat-exchanger line (WL) is coupled to the first section (AL-V1) of the operating line (AL) to bring about pressure equalization.

A process for internally cooling an inline compressor involves the steps of providing a compression chamber between an outer cylinder and an intermediate cylinder and a drive chamber between the intermediate cylinder and a piston; admitting gas into the compression chamber; pumping drive fluid through the piston into the drive chamber to extend the intermediate cylinder and compress the compression chamber and the gas in the compression chamber; allowing heat from the compressed gas to transfer to the drive fluid; allowing the compressed gas to exit the compression chamber; allowing the withdrawal of the drive fluid from the drive chamber; passing the withdrawn drive fluid through a heat exchanger to cool the drive fluid for reuse in extending the intermediate cylinder.

A gas-driven compressor system includes a compressor body with first and second piston cavities and a shuttle valve cavity. The system has a low pressure outlet and high pressure inlet communicating with the first piston cavity via the shuttle valve cavity, and compressor inlet/outlet ports communicating with the second piston cavity. A shuttle valve moves between first and second positions within its cavity. The piston has a first head portion movable by pressurized inlet flow and a second head portion that compresses fluid in the second cavity. The piston selectively directs flow from the high pressure inlet to either side of the shuttle valve cavity based on piston position, thereby directing pressurized flow to either side of the first head portion. This arrangement powers the reciprocating movement of the piston.

A multi-cylinder fluid compressor for compressing a working fluid. The compressor includes a first gas compression cylinder, divided into axially aligned compression chambers by a first reciprocating gas piston, and a second gas compression cylinder, divided into axially aligned compression chambers by a second reciprocating gas piston. The gas compression cylinders are axially aligned and the reciprocating gas pistons are driven by a common piston rod extending through the compression cylinders and operably connected with the reciprocating gas pistons. The common piston rod is reciprocally driven by a hydraulic fluid supply system to reciprocally drive the reciprocating gas pistons. The compressor system may be operated as a multi-stage compressor system by conveying working fluid outlet from one compression chamber to the inlet of another compression chamber. Cooling may be provided between stages. One application for the compressor is in a vapor recovery system for drawing low pressure vapors that can accumulate above hydrocarbon liquids in a tank.