| 摘要 |
The housing is affixed to the carburetor of a vehicle and interposed in the heater hose of the vehicle so that radiator fluid flowing through the hose flows through the housing. A thermal member of the housing has a plurality of thermal fins extending therefrom concentrating heat from fluid flowing through the housing. A bimetallic spiral spring is affixed at one end to a shaft rotatably mounted in the thermal member in the housing and is wound around the shaft at the thermal member. The spring is coupled to the choke of the vehicle in the carburetor whereby the choke is controlled by the condition of the spring which depends upon the temperature of fluid flowing through the hose.
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