Patent ID: 8646417
Filing Date: 2014-02-11
Classification: F01P

Abstract:
1. A cooling apparatus for an internal combustion engine in which a circulation channel of a coolant is formed between a fluid passage formed in the internal combustion engine, a radiator and said cooling apparatus, said cooling apparatus comprising: a housing including a circulation hole having a frame support part formed therein, a thermoelement including therein a thermal expansion material which expands and contracts in response to a temperature of the coolant, a valve body which opens and closes the circulation hole in said housing based on expansion and contraction of the thermal expansion material in said thermoelement, a spring member which biases said valve body in a direction to close the valve, and a spring support frame which supports an end of said spring member, the spring support frame including a lock portion which is locked to the frame support part formed in the circulation hole of said housing; and a temperature sensor having a temperature detecting tip arranged perpendicular to a flow direction in the circulation hole, arranged to face the inside of the circulation hole of the housing at a position between said valve body and said frame support part, and arranged to be away from said spring support frame, wherein positions of the temperature detecting tip and the lock position projected from said spring support frame are arranged not to overlap each other when viewed along the flow direction in the circulation hole, wherein said housing includes an inlet for coolant from said radiator, wherein said temperature detecting tip of said temperature detector is disposed at a position opposite an inlet for coolant not from said radiator, relative to an axis of said circulation hole, and wherein said temperature detecting tip of said temperature sensor faces the inside of said circulation hole at a position of said housing which is opposite said inlet for coolant from said radiator, relative to an axis of said circulation hole.