Patent ID: 7056106
Filing Date: 2006-06-06
Classification: F04B,Y10T

Abstract:
1. A discharge valve apparatus for a reciprocating compressor comprising: a cylinder having a front end surface and a rear end surface; a discharge cover having a built-in volume so as to cover the front end surface of the cylinder; a piston within said cylinder, said piston being capable of a reciprocating movement between a first position and a second position; a hemispherically shaped discharge valve disposed so as to be in contact with the front end surface of the cylinder when said piston is in said first position and separated from said front end surface of said cylinder when said piston is in said second position; and a valve spring having both ends respectively engaged with a rear hemispherically shaped surface of the discharge valve and with an inner surface of the discharge cover, said inner surface of said discharge cover facing the rear surface of the discharge valve, said valve spring elastically supporting the rear surface of the discharge valve, wherein the valve spring is formed with a conical shape in which a rotation radius is gradually tapered so as to prevent adjacent portions of said valve spring from impacting with each other when said valve spring is in a compressed state.