Patent ID: 9273685
Filing Date: 2016-03-01
CPC Classification: B60T,F04B

Claim Text:
1. A pump assembly for pumping a fluid comprising: a pump housing defining a bore extending along an axis and defining a fluid inlet for conveying the fluid into said bore and defining a fluid outlet spaced axially from said fluid inlet for dispensing the fluid out of said bore and presenting a fluid flow path extending from said fluid inlet to said fluid outlet, a piston slidably disposed in said bore of said pump housing for propelling the fluid through said fluid flow path, an eccentric engaging said piston for driving said piston to propel the fluid through said fluid flow path, a plurality of check valves disposed in said fluid flow path for only allowing the fluid in said fluid flow path to flow in one direction from said fluid inlet to said fluid outlet, a filter disposed in said bore of said pump housing and defining at least one filter orifice for filtering debris from the fluid before the fluid is conveyed to said fluid outlet of said pump housing, and said filter being disposed in said fluid flow path downstream of each of said least one check valves.