A wool-like fiber member that has high permeability and low absorbability is disposed around a discharge port of a discharge pipe that is configured to discharge condensate and compressed air stored within a tank.

A compressor and a method of manufacturing the same are disclosed. The compressor includes a piston having formed therein a suction space, in which refrigerant gas is sucked; and a cylinder in which a piston is accommodated, the cylinder defining a compression space that is configured, based on the piston reciprocating in an axial direction, to compress the refrigerant gas therein. A plurality of grooves having a partial spherical shape and having a diameter of 10 micrometers is formed in an outer circumferential surface of the piston or an inner circumferential surface of the cylinder.

A silencer device may be positioned in-line with an exhaust tube of a pneumatic pump to reduce a noise generated at the exhaust tube. The silencer devices includes a noise absorbing media and a body section housing the noise absorbing media and radially sealing peripheral walls thereof. The silencer device also includes a fluid inlet section having an inlet tube that directs fluid flow from the exhaust tube into the noise absorbing media and an inlet airflow restrictor fluidly connected to the fluid inlet section to restrict fluid flow therethrough. The silencer device further includes a fluid outlet section having an outlet tube that directs fluid flow from the noise absorbing media and an outlet airflow restrictor fluidly connected to the fluid outlet section to restrict fluid flow therethrough.

A reduced-noise pneumatic motor has a housing with a cap disposed at a first end, the cap having an air inlet; a base disposed at a second end, the base having an air outlet hole formed therein and configured to at least partially receive a noise damping system, and a piston pump extending therethrough; and bolts extending from the cap to the base to secure the cap and the base to the housing. A pneumatic piston is disposed within the housing, and includes a shuttle valve situated within a central bore of the pneumatic piston. A piston rod has a first end extending into the piston pump and a second end secured to a spring which biases the piston rod against the pneumatic piston.

The disclosure relates to an assembly comprising an electric motor that simultaneously drives both a pump and a compressor. The assembly can be used in a motor vehicle. The pump can be suited particularly for generating hydraulic fluid flow for steering and braking, or to perform auxiliary functions such as dump bodies for garbage trucks or landscape trucks. Methods of operating the system and manufacturing the system are also provided.

Membranes are provided to be specially developed for use in chambers for artificial circulatory assistance which may be employed primarily in cardiovascular procedures, notably to produce arterial capacitance, to regulate blood pressure, to produce aortic counterpulsation and to pump blood. The membrane may have circular sections that may vary in size or not depending on the function to be performed and are interconnected so that the transition between one section and the other is smooth, regardless of the size of each section. Further, chambers and pumps may be used for cardiopulmonary bypass and a pumping system.

A silencer is equipped with a hollow tubular portion in which a discharge flow passage is formed that communicates on one end side thereof with a discharge port of a fluid pressure device (ejector) through which a pressure fluid is discharged, a cap member attached to another end part of the tubular portion, a sound absorbing member attached to an inner wall surface of the tubular portion, and a plurality of discharge ports adapted to discharge the pressure fluid, which has passed through the discharge flow passage in an axial direction of the tubular portion, in radial directions perpendicular to the axial direction.

An air compressor noise dampener. The dampener includes a housing having at least one inlet and at least one outlet. At least one baffle is secured within the housing in between the inlet and the outlet. The baffle includes an opening offset from the outlet so that sound waves traveling into the outlet hits a portion of the baffle prior to traveling through the opening. The present invention further includes a tube fluidly connecting the outlet with an intake of the air compressor.

A plunger and cylinder assembly for the fluid end of a reciprocating pump. The assembly comprises a traveling cylinder, a stationary plunger, and an optional sleeve secured to the traveling cylinder in a detachable manner. The traveling cylinder is displaced along its axis by a thrust component and acts cooperatively with the stationary plunger to create a pressure change in the reciprocating pump.

The present subject matter provides a linear compressor. The linear compressor includes a coupling having a ball seat that is press-fit on a post of a piston. A shaft defines a chamber at an end of the shaft. A pin is press-fit to the shaft at the chamber of the shaft. A ball is positioned on the seating surface of the ball seat. The pin extends through the ball. A ball shoe is positioned opposite the ball seat about the ball. The ball shoe defines a seating surface. The ball is positioned on the seating surface of the ball shoe. A spring urges the ball shoe against the ball.