Patent ID: 6237549
Filing Date: 2001-05-29
Classification: F01L

Abstract:
A poppet valve comprising:a) an outer valve member having a valve stem, a valve base, and an intermediate fillet connecting said valve stem and valve base, with at least one vent opening through the base and/or fillet for communicating a direct passage between a cylinder and its respective intake port, said valve stem being configured with a hollow interior, open through its valve base mounting end, and closed on its valve stem tip end,b) an inner valve guide bearing member fitted and affixed into and within said hollow interior of the outer valve stem to effectively constrict mass flow into or through said hollow interior, and configured to operatively retain, support, and guide an inner valve member's engagement with said outer valve member, andc) an inner valve member configured for operative engagement with said inner valve guide bearing member to open and close the vent opening through the outer valve base configured to releasably seal the vent opening through the base of said outer valve member.