Patent ID: 7540278

Claim:
A fluid control valve comprising: a housing defining therein a fluid passage; a valve member for controlling a fluid flow in the fluid passage by communicating and blocking by the fluid passage; and a protection member being press-inserted into the housing for protecting the housing from heat of the fluid flow in the fluid passage, wherein the housing is formed by die casting of an aluminum material, and the protection member and a wall surface, which defines the fluid passage in the housing, define therebetween a thermal insulating layer for restricting thermal transmission of the fluid flow from the protection member toward the housing, the housing has a fitting portion to which the protection member is fitted, the protection member has a fitting protrusion and a fitting recess, the fitting protrusion is interference-fitted to an inner circumferential periphery of the fitting portion, the fitting recess has an outer diameter less than an outer diameter of the fitting protrusion, the fitting recess is loose-fitted to the inner circumferential periphery of the fitting portion, and the thermal insulating layer is one of a cylindrical space and an annular space defined between the inner circumferential periphery of the fitting portion and an outer circumferential periphery of the fitting recess.