Patent ID: 11965454
Assignee: NIPPON THERMOSTAT CO., LTD.
Field: Control (Instruments)
Classification: CPC F  G | IPC F

Claim 0:
1. A thermostat device comprising:
a housing comprising
a first flow inlet for introducing coolant cooled by a radiator,
a second flow inlet for introducing coolant, not passing through the radiator, heated in an internal combustion engine, and
a flow outlet of the coolant for delivering the mixed coolant of the coolant from the first flow inlet and the second flow inlet to the internal combustion engine;

a thermo-element accommodated in the housing, moving in an axial direction depending on the temperature of the coolant from the second flow inlet;
a control valve controlling an introduced coolant amount from the first flow inlet in conjunction with the movement of the thermo-element;
multiple guides formed to extend from the second flow inlet side toward the thermo-element, and intermittently disposed along a circumference of the thermo-element, and movably supporting the thermo-element in the axial direction;
coolant rectifying protrusions disposed with a gap from the thermo-element at a position avoiding the guides on the circumference of the thermo-element; and
a detoured passage of the coolant directing from the second flow inlet side formed between the adjacent guide and the coolant rectifying protrusion, or between guides, or between the coolant rectifying protrusions to the flow outlet.