Patent ID: 8622082
Filing Date: 2014-01-07
Classification: F04B,Y10T

Abstract:
1. A check valve for sealing a fluid passage, comprising: a valve body; the valve body forming a fluid conduit from a lubricant line to a compressor cylinder; a first tapered guide in the fluid conduit and a second tapered guide in the fluid conduit wherein at least one of the first and second tapered guides is milled from and flush with the valve body; a first elastomeric seal positioned within the first tapered guide and a second elastomeric seal positioned within the second tapered guide; a first non-tapered sealing surface for mating with the first elastomeric seal and a second non-tapered sealing surface for mating with the second elastomeric seal to provide fluid seals by pressing the elastomeric seals against the tapered guides; and a first compression spring in the fluid conduit exerting a seating force on the first non-tapered sealing surface and a second compression spring in the fluid conduit exerting a seating force on the second non-tapered sealing surface, wherein the first and second compression springs push the first and second non-tapered sealing surfaces against the first and second elastomeric seals.