Patent ID: 9416699
Filing Date: 2016-08-16
CPC Classification: F01M

Claim Text:
1. A heating device of a PCV valve comprising: a PCV valve, a conduit and a bush each of which is made from metal, wherein the PCV valve is mounted to an oil separator made from resin via the bush, wherein the conduit includes an outside surface and an internal passage through which an engine cooling water flows, wherein the bush includes an inside surface, a portion of which contacts the PCV valve, and an outside surface, a first portion of which contacts the oil separator and a second portion of which contacts the outside surface of the conduit, and wherein the bush includes an outward protrusion protruding outwardly in a radial direction of the bush and having a curved surface extending along the outside surface of the conduit in a circumferential direction of a cross section of the conduit so that the curved surface of the outward protrusion of the bush contacts a portion of the outside surface of the conduit, opposing the curved surface of the outward protrusion in a manner of a surface-to-surface contact, the curved surface of the outward protrusion defining the second portion of the outside surface of the bush.