Pcv valve mounting structure

Abstract

A PCV valve mounting structure which releases freezing of a PCV valve promptly is provided. A PCV valve mounting structure is provided with a resin cover forming an internal space portion between the resin cover and a cylinder head of an internal combustion engine, a valve mounting through hole formed at the resin cover, a PCV valve including a valve case portion inserted through the valve mounting through hole from outside the resin cover, and a metal fixture threadedly engaged, from inside the resin cover, with the valve case portion inserted through the valve mounting through hole, at least part of the metal fixture being exposed to the internal space portion.

1 . A PCV valve mounting structure, comprising:
 a resin cover forming an internal space portion between the resin cover and a cylinder head of an internal combustion engine;   a valve mounting through hole formed at the resin cover;   a PCV valve including a valve case portion inserted through the valve mounting through hole from outside the resin cover; and   a metal fixture threadedly engaged, from inside the resin cover, with the valve case portion inserted through the valve mounting through hole, at least part of the metal fixture being exposed to the internal space portion.   
     
     
         2 . The PCV valve mounting structure according to  claim 1 , wherein
 the metal fixture is integrally provided with a cylindrical screw portion which is insert molded in the resin cover and a heat receiving portion extended from the cylindrical screw portion to protrude into the internal space portion, and   the valve case portion is provided with a screw portion threadedly engaging with the cylindrical screw portion.