Patent ID: 9347567
Filing Date: 2016-05-24
CPC Classification: F01P,F16K,G05D

Claim Text:
1. A valve apparatus disposed in a vehicle to exhaust operating fluid, which flows therein, to outside the vehicle, comprising: a main body having at least one exhaust port and an input port, the operating fluid flowing therein through the input port; and an opening/closing unit disposed in the main body, wherein the opening/closing unit includes: a transformation member selectively fluidically connecting one of the at least one exhaust port with the input port according to a temperature of the operating fluid such that the operating fluid is exhausted to the outside through the at least one exhaust port; and a mounting cap mounted to an end portion in the main body, wherein the transformation member has a first end thereof connected to the mounting cap inserted into the main body and the transformation member is expanded or contracted according to the temperature of the operating fluid, and wherein the transformation member includes: fixed portions formed in both end portions of a length direction in the transformation member to not be transformed by the temperature, wherein a first fixed portion of the fixed portions is connected to the mounting cap and a second fixed portion of the fixed portions is disposed between the input port and the at least one exhaust port; and a transformation portion integrally formed between the first and second fixed portions, wherein the transformation portion and the second fixed portion selectively and directly close either the at least one exhaust port or the input port such that the operation fluid does not flow into a fluid passage between the at least one exhaust port and the input port while the transformation portion expands or contracts according to the temperature of the operation fluid.