Sealing device in a transmission with pressure-medium controlled

Details Sealing device in a transmission with pressure-medium controlled Sealing device in a transmission with pressure-medium controlled

1982-11-18

1984-09-04

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277DIG8, 474 28, F16L 2708

Patent

active

044693338

ABSTRACT:
A sealing device in a transmission with pressure-medium controlled, continuously variable gear ratio for sealing a pressure medium connection between a channel in the transmission housing and a central, axial bore in a pulley shaft rotating in the housing consists of two concentric sleeves with slide surfaces of fine surface finish. One end of the inner sleeve is pressed into the housing channel and is sealed against its wall by means of a sealing ring. The outer sleeve is divided into a shorter portion of large outer diameter with a longer portion of smaller outer diameter. The shorter portion is fitted into the shaft bore and is sealed against the wall of the bore with a sealing ring, there being a space between the wall of the bore and the longer portion.

REFERENCES:
patent: 3081642 (1963-03-01), Emerson
patent: 3129960 (1964-04-01), Schrodt
patent: 3403567 (1968-10-01), Bruet
patent: 3704634 (1972-12-01), Schrodt
patent: 4327586 (1982-05-01), Goddard

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