Visco coupling with housing rotating on axle

摘要

The coupling has a compensating chamber (34) permanently connected to the operating compartment (33) by at least one throttle hole (12). The chamber is variable between a maximum and minimum volume, by a movable wall (15) on which a spring (17) exerts pressure. The housing (2) around the compensating chamber is widened, and separated from the operating compartment by a partition wall (8). The movable wall on the inner surface (9) of the wider housing part (3) is axially movable and seated by seals (19) in relation to the compensating chamber and hub (24).