A natural gas system includes a process suction conduit, a compressor package configured to receive a flow of natural gas from the process suction conduit and to increase a pressure of the flow of natural gas whereby the flow of natural gas is discharged from the compressor package as a pressurized flow of natural gas, a process discharge conduit connected downstream of the compressor package, and an emissions management module coupled to the compressor package and configured to capture emissions from the compressor package, wherein the emissions management module includes a vapor recovery unit configured to circulate the captured emissions from the VRU along an emissions discharge conduit coupled to the VRU to at least one of the process suction conduit, a fuel gas system of the natural gas system, and a hydrocarbon processing component of the natural gas system that is separate from the compressor package.

A piston of an air compressor contains at least one fixing bolt configured to fix a plane of a top of a head of the piston to at least one air stop sheet. A respective one of the at least one air stop sheet includes at least one bending section and at least one acting zone surrounding the at least one bending section and configured to cover at least one air orifice. A back surface of the at least one acting zone of the respective one air stop sheet moves away from the plane of the top of the head at an open angle θ, thus producing an air flowing space. A pressure of a cylinder balances with atmosphere, and the piston is not stopped by a back-pressure resistance to move smoothly in upward and downward moving strokes after the air stop sheet moves again.

A gas compressor includes a main body portion including a compression unit configured to compress gas, an air blowing unit, and a drive unit configured to drive the compression unit and the air blowing unit, a cover portion covering at least a part of the main body portion and having an air vent through which air flows from the air blowing unit, and a handle portion having a gripping portion. The air vent faces a rotation axis direction of a rotation member of the air blowing unit which is rotated by being driven by the drive unit, and the handle portion includes a protective portion facing the air vent and being apart from the air vent.

The present disclosure relates to a dryer. The dryer of the present disclosure includes a cabinet forming an exterior, a drum rotatably installed inside the cabinet, a heat pump module including an evaporator, a compressor, a condenser, and an expander through which a refrigerant circulates to supply hot and dry air into the drum, a compressor chamber housing configured to reduce noise generated by the compressor and form a compressor chamber which is a space through which air flows around an outer periphery of the compressor, and a cooling fan configured to cause air to flow into the compressor chamber.

Air compressor systems that are configured to output compressed air. Each system includes a cabinet and at least one air compressor mounted at least partially in the cabinet. The air compressor includes a drive motor with a cooling air inlet through which cooling air can be input for cooling the drive motor. The cooling air inlet is directly fluidly connected to a cooling air opening of the cabinet so that the cooling air for the drive motor is drawn into the drive motor directly from the ambient environment instead of being drawn in from the interior space of the cabinet. In addition, the system includes an exhaust fan on the cabinet that vents the interior space of the cabinet to the ambient environment. During operation of the air compressor, a negative cabinet pressure is created in the interior space where the pressure is less than ambient pressure.

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.

A motor assembly includes an electric motor with an output shaft. A motor frame houses the electric motor so that the output shaft protrudes from an end of the motor frame. A plate assembly is coupleable about the output shaft to the end of the motor frame. The plate assembly has a cavity that houses motor drive electronics. The plate assembly further defines a duct that extends between a central opening and one or more openings on an outer radial wall of the plate assembly. A fan is configured to flow air over one or more surfaces of the plate assembly and causes to flow through the duct to inhibits heat transfer between the electric motor and the motor drive electronics.

The invention relates to a cooling arrangement for an at least two-stage compressed air generator (01). The cooling arrangement comprises an intercooler (04), which is arranged between a first and a second compressor stage (02, 03), an aftercooler (05), which is arranged after the second compressor stage (03), and a subassembly cooler (08), which absorbs heat from further subassemblies of the compressed air generator (01). A coolant circuit comprises a main cooler (07), the cold side of which supplies a cooled coolant having a low temperature parallel to the respective coolant inlet of the intercooler (04), of the aftercooler (05) and of the subassembly cooler (08), and the hot side of which receives the heated coolant having a high temperature exiting in parallel at the respective coolant outlet of the intercooler (04) and of the aftercooler (05). The coolant outlet of the subassembly cooler (08) is connected to a feed inlet (12) of the intercooler (04) and/or of the aftercooler (05). The feed inlet (12) is arranged between the coolant inlet and the coolant outlet, at a point at which the intermediate temperature of the coolant in the intercooler (04) or in the aftercooler (05) corresponds to the exit temperature of the coolant at the subassembly cooler (08) ±20%.

The invention furthermore relates to a method for cooling an at least two-stage compressed air generator.

An air compressor includes a controller, a pump and an air storage tank. The pump is in communication with the air storage tank. A first air inlet and a first air outlet are provided on the pump. The pump is configured to pump an external air into the air storage tank. The controller is provided at the first air inlet of the pump, and is electrically connected with the pump. The controller is configured to control the operation of the pump. The external air is in contact with the controller, and enters the pump through the first air inlet and then flows out of the pump through the first air outlet, so as to realize a heat dissipation of the pump and the controller.

A compressor may include a compressor shell, a motor, a compression mechanism, an enclosure, a control module, a fan, and an airflow deflector. The compression mechanism is disposed within the compressor shell. The motor drives the compression mechanism. The enclosure defines an internal cavity. The control module is in communication with the motor and is configured to control operation of the motor. The fan may be disposed within the internal cavity. The airflow deflector may include a base portion, a first leg, and a second leg. The first and second legs may be spaced apart from each other and may extend from the base portion. The fan may force air against the base portion. A first portion of the air may flow from the base portion along the first leg, and a second portion of the air may flow from the base portion along the second leg.