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    • 1. 发明公开
    • Friction damper for railway vehicle suspensions
    • 用于铁路车辆悬挂的摩擦阻尼器
    • EP0246200A3
    • 1988-07-20
    • EP87830088
    • 1987-03-09
    • FIAT FERROVIARIA SAVIGLIANO S.p.A.
    • Santanera, Oreste
    • B61F05/12
    • B61F5/122F16F3/04F16F7/08
    • Africtiondamperforverticalandtransversesuspensions for railway vehicles includes a cranked rocker lever (7) having a first arm (11) which supports an elastic member (4) of the suspension and a second arm (13) carrying a first friction lining (16) which faces a second friction lining (17) carried by a fixed support (19, 10). The cranked lever (7) is articulated to one of the parts (2, 1) (carriage chassis, axle, vehicle body, swinging beam or load-bearing beam) between which the suspension (3) is interposed and cooperates with a connecting rod (23) having one end (24) articulated to the other of the parts (1, 2) between which the suspension is interposed and its opposite end (28) connected rotatably and slidably to the second arm (13) of the cranked lever (7) and to the fixed support (19, 10). Third and fourth friction linings (31) carried by the connecting rod (23) cooperate respectively with the first and second linings (16,17) during vertical translational movements and rotations of the connecting rod (23) resulting from the vertical and transverse relative motions of the parts between which the suspension is inserted, so as to damp these motions in a differentiated and variable manner as a function of the load transmitted to the cranked lever (7) by the elastic member (4) of the suspension (3).