Torsional oscillation damper for power transmission system - has input side connection attached to output side connection, rotating in relation to each other

摘要

The metal housing (17) is connected to one of the connections on the input and output sides, extending in a peripheral direction, and contains fluid. The housing consists of several peripherally curved segments. A resin slide valve (19) is joined to the other connection and is positioned so that it can move in the housing in a peripheral direction. The slide valve consists of the same number of segments as the curved housing segments. Between the housing's inner wall and the slide valve is a gap. The slide valve's coefficient of thermal expansion is higher than the housing's and is set so that, when the fluid's operating temp. rises, the slide valve expands and narrows the gap. ADVANTAGE - Proportional damping of torsional oscillations occurs by the housing being connected to the input or output rotational element.