| 摘要 |
A viscous fluid coupling including a drive shaft drivably connected to the engine, a casing member rotatably mounted on the drive shaft and provided with a fluid working chamber and a fluid reservoir, a rotor fixed to the drive shaft and located in the fluid working chamber and rotatable relative to the casing member, a valve shaft rotatably and sealingly mounted on the casing member, a valve plate fixed to an inner end of the valve shaft and operable to control fluid communication between the fluid working chamber and the reservoir, a helically wound bimetal element located on an exterior portion of the casing member, the bimetal element having an inner end portion connected to an outer end of the valve shaft and an outer end portion being connected to a suitable portion of the casing member, and a resilient member located between the outer end portion and the casing member.
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