Thermostat apparatus

Abstract

A thermostat apparatus comprising a movable temperature sensing member (39) capable of sensing mainly the temperature of high-temperature coolant flowing in from a high-temperature coolant port (33) and driving toward the side of the high-temperature coolant port (33) in dependence upon the sensed temperature; a main valve (36) fitted integrally to the movable temperature sensing member (39) and constructed so as to render a low-temperature coolant port (31) and a mixing compartment (32) openable in conformity to the driving of the movable temperature sensing member (39) toward the side of the high-temperature coolant port (33), thereby controlling the inflow rate of low-temperature coolant from the low-temperature coolant port (31) to the mixing compartment (32); and a high-temperature coolant inducing part (42) communicating with the high-temperature coolant port (33) and adapted to regulate the flow of high-temperature coolant from the high-temperature coolant port (33) toward the surround of the movable temperature sensing member (39) and effect outflow thereof to the mixing compartment (32).

Description

technical field [0001] The present invention relates to a thermostat device mainly for automatic control of coolant for cooling an automobile engine. Background technique [0002] The previous thermostat device 20 was as Figure 10 As shown, there is a housing body 16, which includes: a low-temperature coolant channel 2, which allows the low-temperature coolant A to be cooled by cooling parts such as radiators to flow into the mixing chamber 19, and a high-temperature coolant channel 3, which is located in the above-mentioned low-temperature coolant channel. 2, on the opposite side, the high-temperature coolant B heated by the engine (the part to be cooled) flows into the mixing chamber 19; the coolant delivery channel 4 is the cooling coolant formed by mixing the inflow from the low-temperature coolant channel 2 and the high-temperature coolant channel 3 Agent C is delivered to the engine. The thermostat device 20 also includes: a piston shaft 7, which is supported by the ...

AI Technical Summary

Problems solved by technology

That is, when the temperature of the coolant C rises and a larger opening of the main valve 9 is required, such as Figure 12 Shown in the characteristic of known technology in the present invention, there is the shortcoming that can't control the opening degree of main valve 9

[0018] (3) When the high-temperature coolant channel 3 is closed, because the high-temperature coolant channel 3 is suddenly cut off, temperature hunting occurs immediately after closing, and the temperature of the coolant C is unstable.

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