Hydrokinetic torque convertor with bypass clutch having grooved

Details Hydrokinetic torque convertor with bypass clutch having grooved Hydrokinetic torque convertor with bypass clutch having grooved

1997-08-25

1999-11-02

Marmor, Charles A.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 7014, 192107R, 19211336, F16D 3300, F16D 6900, F16D 1372, F16H 4502

Patent

active

059752602

ABSTRACT:
The bypass clutch in the fluid-containing housing of the hydrokinetic torque converter in the power train of a motor vehicle is provided with a first friction surface carried by a radially extending or conical section of the housing, and with a complementary friction surface carried by an axially movable piston or by an intermediate clutch plate of the bypass clutch. At least one of the friction surfaces is provided with an array of pockets and/or channels for a fluid (such as oil) which withdraws friction heat developing when the bypass clutch is partially engaged so that the friction surfaces contact but slip relative to each other. The depth and/or the width of the channels is at least substantially constant, and such channels can include bends between straight channel sections. The inlets of the channels can be located at the radially inner or radially outer marginal portion and their outlets can be located at the radially outer or inner marginal portion of the respective friction surface.

REFERENCES:
patent: 3972400 (1976-08-01), Howells
patent: 5335765 (1994-08-01), Takakura et al.
patent: 5377796 (1995-01-01), Friedmann et al.
patent: 5501309 (1996-03-01), Walth et al.
patent: 5566802 (1996-10-01), Kirkwood
patent: 5667042 (1997-09-01), Olsen et al.
patent: 5669474 (1997-09-01), Dehrmann et al.
patent: 5738198 (1998-04-01), Walth et al.
patent: 5782327 (1998-07-01), Otto et al.
patent: 5799763 (1998-09-01), Dehrmann
patent: 5813505 (1998-09-01), Olsen et al.
patent: 5878860 (1999-03-01), Pavangat et al.
Norm Din 7184: Title: Form -und Lagetoleranzen 7184 -19 pages dated: May 1972.

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