Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1989-11-28
1991-07-09
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 83, 277174, F16J 916
Patent
active
050298801
ABSTRACT:
A device for sealing the gap between a substantially cylindrical outer surface of a body and a coaxially surrounding and substantially cylindrical wall surface against a fluid pressure, particularly hydraulic liquid pressure, which pressure is greater on one side of the device than on the other, comprising a peripheral groove made in one of said cylindrical surfaces and in which is inserted at least one slotted sealing ring having an edge surface which resiliently and sealingly engages a portion of the other cylindrical surface radially opposite to the peripheral groove, the one surface and the other surface being mutually static and/or rotatable and/or axially movable as well as arranged with comparatively great radial play, a non-slotted support ring being mounted at the low-pressure side of the slotted sealing ring. For obtaining an effective sealing action in spite of said radial play between the surfaces, the non-slotted support ring is mounted with smallest possible clearance to the other surface and extends partialy into the peripheral groove in the one surface, the slotted sealing ring furthermore having a required great play relative to the peripheral groove bottom in view of the radial gap between the surfaces.
REFERENCES:
patent: 2259197 (1941-10-01), Bilde
patent: 3371616 (1968-03-01), Wahlmark
patent: 3373999 (1968-03-01), Jepsen
patent: 3460842 (1969-08-01), Pointer et al.
patent: 3540746 (1970-11-01), Jepson
patent: 3667867 (1972-06-01), Boydell et al.
patent: 3707335 (1972-12-01), Barnard
patent: 4455028 (1984-06-01), Johansson
patent: 4477090 (1984-10-01), Johansson et al.
Cuchlinski Jr. William A.
DePumpo Daniel G.
Volvo Hydraulik AB
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