A pump assembly includes a housing with an air inlet and an air outlet, a motor supported by the housing, the motor including a drive shaft rotatable about a drive shaft axis, a first plurality of diaphragms supported by the housing, the first plurality of diaphragms positioned along a first plane, and a second plurality of diaphragms supported by the housing, the second plurality diaphragms positioned along a second plane, the second plane spaced apart from the first plane. Rotation of the drive shaft is operable to move each diaphragm of the first plurality of diaphragms and each diaphragm of the second plurality of diaphragms from an intake position to a compression position to pump a fluid from the air inlet through the air outlet.

Systems and methods are described for a reciprocating mechanism. The system includes at least one axially translating y-axis component configured to reciprocate substantially along a y-axis with a reciprocating motion of a piston assembly relative to a base. The system also includes at least one x-axis component slidingly coupled via at least one bearing assembly to and translating with the at least one y-axis component along the y-axis. The at least one x-axis component is configured to reciprocate substantially perpendicularly to the y-axis relative to the at least one y-axis component, and includes an orbital output component and an orbital linking component disposed substantially concentric with the orbital output component. The system also includes a stationary output component rotatably attached to the base in a direction that is substantially perpendicular to both the x-axis and y-axis, and a stationary linking component rotatably attached to the base in a direction that is substantially concentric with the stationary output component.

A natural gas pumping system that includes six reciprocating compressor cylinders, the reciprocating pistons of the six compressors having cycles offset by 60 degrees one from another.

Refrigerant compressor for refrigeration systems, comprising an electric motor, at least two cylinder banks and a mechanical performance control unit for activating and deactivating at least one of the cylinder banks in order to activate or deactivate its refrigerant output, wherein, for the purpose of operation in partial performance conditions, the refrigerant compressor is operable in at least two different operating modes, of which each provides an activation or deactivation of the cylinder banks that is different from the other operating modes, wherein associated with the refrigerant compressor is a frequency converter for controlling the speed of the electric motor, wherein associated with the refrigerant compressor is an operating condition controller that, in accordance with a performance request signal supplied to it for operation of the refrigerant compressor in the partial performance condition corresponding to this performance request signal, operates the refrigerant compressor in an operating mode that is selected from at least two different operating modes and at a speed adapted to the selected operating mode, for the purpose of achieving this partial performance condition.

A suspension system for a compressor assembly is provided. The compressor assembly includes at least one cylinder, at least one inlet fluidly connected with the at least one cylinder, an outlet fluidly connected with the at least one cylinder, and a motor housing. The suspension system includes a suspension member and a frame member. The suspension member includes a first fluid conduit connected with the coupling portion and including a first fluid terminal. The first fluid conduit is disposed in fluid communication with one of the outlet and the at least one inlet of the compressor assembly. The frame member includes a base portion, a first support portion, and a second support portion. A first mounting region is formed between the first support portion and the first fluid terminal. The first mounting region defines a first volume that at least partially encloses the first fluid terminal.

An air compressor apparatus is disclosed that includes an air tank. A first compressor assembly can be fluidly coupled to the air tank, the first compressor assembly including a first head unloader valve. A second compressor assembly can be fluidly coupled to the air tank, the second compressor assembly including a second head unloader valve. A control unit can be electrically coupled to the first and second compressor assemblies, the control unit operable to control the operation of the first and second compressor assemblies. During startup, the first and second air compressor assemblies can be configured to draw less than 20 amps of current combined from a single 120 volt power source. The first and second compressor assemblies can each be dual piston compressor assemblies.

A pump system has a rotatory shaft and a rotatory drive arrangement coupled to the rotatory shaft for applying rotatory energy thereto. First through fourth pump arrangements are coupled to the rotatory shaft, each pump arrangement pumping a pulse of air during each rotation of the rotatory shaft, the first, second, third, and fourth pump arrangements pumping a corresponding pulse of air sequentially during each rotation of the rotatory shaft. The rotatory shaft has a first and second ends, and a central region therebetween where an electric motor is coaxially arranged. The first and third pump arrangements are coupled to the first end of the rotatory shaft, and the second and fourth pump arrangements are coupled to the second end of the rotatory shaft. Angularly displaced eccentric couplers couple the pump arrangements to the respective ends of the rotatory shaft.

The labyrinth piston compressor comprises a cylinder, a piston disposed in the cylinder, and a piston rod, wherein the piston rod extends in a longitudinal direction (L) and is connected to the piston, and wherein the piston is reciprocally movable in the longitudinal direction (L) within the cylinder, wherein the cylinder comprises a first cylinder cover, wherein an inlet valve and an outlet valve are arranged in the first cylinder cover, and wherein the inlet valve and the outlet valve are arranged symmetrically with respect to a plane of symmetry (S) extending in the longitudinal direction (L) along the piston rod.

A natural gas pumping system that includes six reciprocating compressor cylinders, the reciprocating pistons of the six compressors having cycles offset by 60 degrees one from another.

A compressor according to an embodiment includes: a cylinder; a piston configured to be reciprocable in the cylinder; a suction space capable of communicating with a working chamber formed by the cylinder and the piston; a discharge space capable of communicating with the working chamber; a partition wall portion disposed so as to surround the working chamber, and separating the suction space and the discharge space; and a cooling medium path formed in the partition wall portion.