Stepped seal and bushing

Details Stepped seal and bushing Stepped seal and bushing

1998-09-08

2000-11-14

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

60330, 60336, 277928, F16D 3300

Patent

active

061458422

ABSTRACT:
A torque converter has a lip seal abutting the torque converter impeller control pump drive hub. The drive hub is rotatably supported in a transmission housing. Oil from the drive hub side of the bushing passes through the bushing into a chamber sealed from atmosphere by the lip seal. The lip seal has a component rotatably sealing on a diameter greater than the drive hub diameter. The bushing, in one embodiment, has a control passage for exhausting a portion of the oil from the control pump side prior to reaching the chamber.

REFERENCES:
patent: 3952508 (1976-04-01), Bopp
patent: 5009435 (1991-04-01), Villanyi et al.
patent: 5720167 (1998-02-01), Marich
patent: 5852931 (1998-12-01), Reichenmeller et al.
PCT Pub. No. WO96/11346, Reichenmiller et al., Automatic Gearbox with a Positive-Displacement Pump, Apr. 1996.

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