A speed-responsive engaging mechanism adapted for use in a hydrodynamic device to couple turbine and impeller members including a disc secured to the turbine member having a series of cam surfaces thereon formed in apertures in the discs with a series of friction shoe assemblies mounted in the apertures in engagement with the cam surfaces. The friction shoe assemblies engage with the impeller at a predetermined speed of rotation of the turbine member, and the cam means induces a wedging engagement of the shoes with the impeller member. Spring means are provided to retain the shoe assemblies in the apertures, and a roller mechanism is provided in each shoe assembly to provide relatively frictionless relative movement between the cam surfaces and the shoe assemblies. Means are provided in the apertures which in cooperation with the spring means, tilt the shoe assemblies to eliminate the viscous drag effect.
A speed responsive engaging mechanism mounted in the central toroidal space in a hydrodynamic device adapted to couple the turbine and impeller members, including an annular support secured to the turbine member having a series of cam surfaces formed in the periphery thereof with a series of engaging devices or friction shoes mounted on said ramps. The friction shoes engage with a clutch element secured to the impeller member at a predetermined speed of rotation of the turbine element.
Centrifugal And Torque Responsive Lock Up Clutch For Couplings
John Polomski - Birmingham MI Willis Lorenz Schulz - Utica MI Victor Joseph Specht - Fowlerville MI
Assignee:
Borg-Warner Corporation - Chicago IL
International Classification:
F16H 4502
US Classification:
192 331
Abstract:
A speed responsive engaging mechanism, adapted for use in a hydrodynamic device to couple the turbine and impeller members, including an annular support secured to the turbine member having a series of cam surfaces formed in the periphery thereof with a series of engaging devices or friction shoes mounted on said ramps. The friction shoes engage with the impeller member at a predetermined speed of rotation of the turbine element. A series of springs engage each of the friction shoes to urge them toward a disengaged position.
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