Vacuum pump/ air and gas compressor

Abstract

A pump housing for a pump/compressor includes a front portion and a back portion. The front portion includes an opening forming a motor bearing pocket for seating a motor bearing and through which a motor shaft extends towards the back portion, at least one vent hole radially outwardly spaced from the opening for cooling, and a protrusion extending outward from the front portion, wherein the protrusion is configured to locate a motor housing. A pump/compressor includes the described pump housing and a motor. The front portion of the pump housing is configured as a motor endbell, such that the motor does not include a separate front endbell. The pump/compressor further may include a piston assembly having an integral piston and connecting rod member operable within the pump/compressor. Exhaust air is directed through valve porting in the piston and out of a bottom of the connecting rod.

Dependencies are inferred from the claim text.