An apparatus for providing a selectively variable orifice size for pulsation control in a reciprocating compressor system includes a rotatable upper windowed plate and a fixed lower windowed plate, the windowed plates being aligned a long a central axis to form a central cylindrical port. The upper and lower windowed plates each include at least one plate port and have mating contours allowing the upper plate to rotatably slide over the fixed lower plate, allowing their respective ports to be selectively aligned in any configuration to create any desired orifice size for a pulsation control device. The shapes of the windowed plates can be flat, conical, or any combination thereof. In one embodiment, the upper and lower windowed plates each include a plurality of plate ports which can be selectively aligned, the relative alignment of the plurality of plate ports determining the effective orifice size of the pulsation control device.

A compressor includes: a cylinder crankcase defining a cylinder closed by a valve plate provided with at least one discharge orifice; a cylinder cap seated against the valve plate and in the interior of which is defined a discharge chamber. A hollow body defines at least one plenum mounted internal to the cylinder cap, maintaining a gap with the latter. The hollow body is seated against the valve plate, preventing the direct contact thereof with the inner volume of the hollow body, the latter being provided with an inlet nozzle communicating the plenum with the discharge orifice of the valve plate, and with an outlet nozzle communicating the plenum with a gas outlet of the cylinder cap.

The present disclosure relates to a device for a high-pressure pump for a motor vehicle comprising a valve housing and an actuator assembly arranged substantially along the central axis of the valve housing. The actuator assembly may include a recess extending from a first end. The actuator assembly may include at least one hydraulic compensation opening extending through a wall of the actuator assembly from the recess into an exterior region. It may also include a volume body in the actuator recess spaced apart from the actuator assembly and extending into a region of the at least one hydraulic compensation opening. The volume body may be immovable relative to the valve housing. The actuator assembly may move along the central axis relative to the valve housing and relative to the volume body.

A discharge muffler may include a discharge space in the cylinder block and a pulsation and/or noise reducing member (e.g., a pulsation reducing member) engaged in the discharge space having a passage (e.g., a pulsation and/or noise reducing passage) on a circumferential surface configured to guide the working fluid to an inner space of the discharge space.

The present invention relates to the technological field of compressors and components and/or devices for compressors. Problem to be solved: The current state of the art includes cooling system of dual evaporation and/or dual suction. On the solutions already existing, the selection of one among the two evaporation/suction lines is done by high complexity constructive mechanisms. Problem resolution: The invention in question aims to simplify the construction of a selection mean of one among two evaporation/suction lines. For so, is revealed a suction acoustic filter for reciprocating compressor which integrates an automatic valve coupled to the inlet way of the suction acoustic filter and a valve of a way is coupled to the inlet way of the suction acoustic filter, being said automatic valve and said valve of a way acting selectively reciprocating, where the valve opening of a way ends up opening the automatic valve.

A compressor assembly having a high velocity muffler system which produces a particle-free compressor pump feed while reducing noise output from the compressor assembly during compressing operations. The high velocity muffler system is maintenance-free and comprises an inertia filter. The compressor assembly uses a method for producing a compressor pump feed and reducing noise during compressing operations by processing a gas through the high velocity muffler system which has an inertia filter and a muffler chamber to produce a compressor pump feed which can be compressed by a pump assembly.

A fracturing apparatus may include a first plunger pump including a first power end and a first hydraulic end; a prime mover including a first power output shaft; and a first clutch including a first connection portion and a second connection portion. The first power end of the first plunger pump includes a first power input shaft, the first connection portion is coupled to the first power input shaft, the second connection portion is coupled to the first power output shaft of the prime mover.

The present invention refers to a compressor with an acoustic attenuator device, preferably those used in refrigeration systems, in general. More specifically, the present invention refers to an acoustic attenuator device comprising technical, structural, and functional features capable of simplifying the method of fabricating these parts and increasing acoustic attenuation levels of hermetic compressors, in general. In this sense, the attenuator device of the present invention comprises a hollow body closed by a cover to form a structure having at least one inlet hole and an outlet hole, wherein there is provided between said hollow body and said cover at least one intermediate body dividing said structure into at least two acoustic chambers (A, A), and is formed by a platform provided with a connecting channel, which is in fluid communication between said acoustic chambers (A, A) and further surrounds an outlet channel, which is interconnected with said outlet hollow disposed on said cover.

A linear compressor is provided. The linear compressor may include a shell including a refrigerant inlet, a cylinder provided within the shell, a piston that reciprocates within the cylinder, and a suction muffler provided movable together with the piston. The suction muffler may include a muffler main body that defines a refrigerant passage, a main body insertion portion press-fitted into the muffler main body, and a piston insertion portion press-fitted into the muffler main body to extend into the piston. The piston insertion portion may correspond to the main body insertion portion in configuration.

A compressor (10), in particular a compressor for compressing a coolant, including one or more pistons (12), a cylinder block (16), and a compressor housing which at least partially houses the compressor (10), the piston(s) (12) being arranged in corresponding cylinder bores or cylinders (14) arranged at least partially in the cylinder block (16) and/or in the compressor housing so that they can move back and forth. The compressor (10) also includes an impedance tube (36) and an outlet (30) for releasing the coolant from the compressor, (10) in particular an outlet flange (32). Said compressor (10) has an associated high pressure volume (24), for one or more, in particular, for respectively two cylinders (14), and a common high pressure volume (26), in which the individual high pressure volumes (24) join, the common high pressure volume (26) being connected to the outlet (30) and the impedance tube (36) being arranged in the connection between the common high pressure volume (26) and the outlet (30) or the connection is created between the common high pressure volume (26) and the outlet (30). The invention also relates to a corresponding coolant circuit and to a corresponding air-conditioning system.