A ring-shaped diaphragm compressor may be continuous or non-continuous. Bolting is inboard and outboard of the diaphragm (240). The compression chamber (230) may be circular or other arcuate shape. The diaphragm is driven by a reciprocating piston (68) via hydraulic oil. Pistons may be phased. Mid-valves permit simultaneously outputting two or more different pressures during one or several cycles.

A positive displacement pump includes a housing surrounding a drive chamber and a diaphragm compartment. A drive element is inside the drive chamber. A diaphragm is inside the diaphragm compartment and divides the diaphragm compartment into a fluid chamber and a cavity. A shaft connects the drive element and the diaphragm. A breather valve is fluidically connected to the cavity and is configured to allow air to exit the cavity. The cavity is fluidically disconnected from the drive chamber.

A roll-diaphragm compressor and a roll-diaphragm compressors system, including methods for manufacturing and using same. The roll-diaphragm compressor includes a compressor body having a concave portion that defines a rounded interface wall and an apex portion adjacent to the concave portion that comprises an inlet and outlet port. The roll-diaphragm compressor also includes a flexible roll-diaphragm coupled to the compressor body about a compressor body edge and a compression chamber defined by the concave portion, apex portion and roll-diaphragm. The roll-diaphragm compressor further includes a piston head rigidly coupled to a central portion of the roll-diaphragm and configured to drive the roll-diaphragm to a first configuration where the roll-diaphragm engages the interface wall as part of a compression cycle.

The present application discloses a high-pressure diaphragm compressor. The high-pressure diaphragm compressor includes a gas-side diaphragm head and an oil-side diaphragm head; a diaphragm and an oil distribution disc are disposed between the gas-side diaphragm head and the oil-side diaphragm head, the diaphragm and the oil distribution disc are clamped between the gas-side diaphragm head and the oil-side diaphragm head, and a gas-side diaphragm cavity and an oil-side diaphragm cavity are respectively formed between the diaphragm and the gas-side diaphragm head as well as between the diaphragm and the oil distribution disc; an oil cylinder hole is provided in the oil-side diaphragm head, a piston is arranged in the oil cylinder hole, and a piston rod is disposed below the piston; and the upper end of the piston rod abuts onto the lower end of the piston, the piston may be separated from the piston rod.

The invention relates to a high pressure diaphragm compressor for pressurizing a gaseous fluid to a pressure of at least 10 MPa, the compressor including a compressor head having an oblong shaped chamber.

A pneumatic exomuscle system and methods for manufacturing and using same. The pneumatic exomuscle system includes a pneumatic module; a plurality of pneumatic actuators each operably coupled to the pneumatic module via at least one pneumatic line, a portion of the pneumatic actuators configured to be worn about respective body joints of a user; and a control module operably coupled to the pneumatic module, the control module configured to control the pneumatic module to selectively inflate portions of the pneumatic actuators.

The present disclosure provides a device for monitoring oil pressure in an oil cylinder of a diaphragm compressor, including a piston rod and a strain gauge circuit. The strain gauge circuit includes a strain gauge component and a bridge circuit connected, and the strain gauge component is arranged on the surface of the piston rod. A strain gauge component is noninvasively arranged on the piston rod of the diaphragm compressor to measure the load of the piston rod, such that the oil pressure can be measured indirectly, and thus the oil pressure of the diaphragm compressor can be measured nondestructively. Nondestructive and noninvasive monitoring of the diaphragm compressor is safe and reliable, and can achieve accurate monitoring of the oil pressure especially in high-pressure working conditions.

A plunger driven solution pump is described that is configured to have a diaphragm that substantially conforms to the volume of a pump solution chamber when in a fully outwardly deflected state. The solution chamber may have an inlet port and an outlet port form in a concave solution chamber wall. A step, or ridge, may be formed along an outer periphery of the solution chamber wall and adjacent the inlet and outlet ports to prevent the diaphragm from becoming deformed from pressure against the solution chamber wall. This configuration may allow the pump to efficiently self-prime.

A pneumatic actuator that includes a plurality of elongated inflatable chambers stacked lengthwise in an array from a top-end to a bottom end, the plurality of elongated inflatable chambers defined by an inextensible body that is inextensible along one or more plane axes of the body while being flexible in other directions.

The invention relates to a high pressure diaphragm compressor for pressurizing a gaseous fluid to a pressure of at least 10 MPa, the compressor including a compressor head having an oblong shaped chamber.