| 摘要 |
WAX-PELLET THERMOSTAT A wax-pellet thermostat having a frame having a valve seat, a piston secured to the frame, a guide member slidably mounted on the piston, and a valve secured to the guide member. A resilient annular seal member is secured to an outer periphery portion of the primary valve. An annular groove is formed in the seal member to form an annular resilient lip at an outer periphery of the seal member. The resilient lip is arranged to be engaged with an inside wall of the frame by pressure of coolant in a main passage of a cooling system.
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