ROTARY FLUID COUPLING

摘要

A fluid coupling containing a magnetically responsive fluid (27, 76) is in series with a digital clutch (71). Disengagement of the clutch (71) ensures that during times of no torque transmission, the fluid (27) does not cause parasitic drag, and is not subject to degradation because of continual shear. Wear of the necessary fluid seals (28) is also reduced.