Automatic suction and pressure valve
AssigneeHoerbiger Kompressortechnik Holding GmbH
InventorsBernhard Spiegl, Markus Testori, Peter Steinrück
Life of this patent
Estimating the term…
Abstract
A spring cup in an automatic suction and pressure valve has an internal contour which opens in the shape of a calotte so as to reduce wear at the ends of a valve spring positioned in the spring cup and thereby lengthen its useful life.
Claims7
An automatic suction and pressure valve having a valve seat, a valve stop and a sealing element that can move to and fro between said valve seat and said valve stop, a spring cup in the valve stop which has a base and an opposite opening, and a valve spring in the spring cup for loading the sealing element against the valve seat, said valve spring defining an envelope having an external contour, wherein an internal contour of the spring cup includes a first section which extends to said opening and is curved in the shape of a calotte such that the curvature of the internal contour of said first section continuously increases from a smaller curvature to a larger curvature at said opening, and a second section at the base which has the same contour as the external contour of the envelope of the valve spring.
Dependencies are inferred from the claim text.