Patent ID: 8505522
Filing Date: 2013-08-13
Classification: F01M

Abstract:
1. A PCV valve comprising: a cover including an inlet formed therein; a body connected to the cover to form a hydraulic path therein, wherein the body includes an outlet formed in an end of the body; a valve body including a valve head disposed within the hydraulic path to selectively block the inlet; and an elastic portion which contacts the valve head and elastically supports the valve body within the hydraulic path in the cover; and wherein a valve head gas groove is formed in an inner surface of the valve head that contacts the elastic portion; wherein the PCV valve further includes an orifice disposed in the hydraulic path and an orifice hole formed in the orifice receives the valve body therethrough, wherein an inner diameter of the orifice hole is larger than an outer diameter of the valve body to allow a blow-by gas flow through a space formed between the valve body and the orifice hole; wherein the elastic portion is disposed between the orifice and the valve body; wherein an orifice gas groove is formed on a surface of the orifice that contacts the elastic portion and continuously fluid-communicates with the space formed between the orifice hole and the valve body; and wherein the orifice gas groove is formed in a radial direction of the orifice.