Contactless seal

Details Contactless seal Contactless seal

1992-03-02

1993-07-20

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 24, 277 53, F16J 1532

Patent

active

052287009

ABSTRACT:
A contactless seal for sealing a fixed machine part with respect to a machine part rotating with respect thereto, is comprised of a centrifuge ring arranged on the rotatable part, the centrifuge ring forming an annular gap with a fixed part of the seal. In order that no liquid can be forced into the bearing, even with high speed shafts or the like, the centrifuge ring forms a preferably radially directed sealing gap with a fixed part of the seal, as well as a first chamber. This first chamber is connected to at least one further annular chamber by way of a narrow annular gap, and the latter chamber is bounded by the fixed parts of the seal. One of the parts of the seal has a catching channel for catching and leading away a liquid forced into the seal.

REFERENCES:
patent: 913407 (1909-02-01), Ljungstrom
patent: 1574211 (1926-02-01), Taylor
patent: 2247074 (1941-06-01), Warner
patent: 4093324 (1978-06-01), Carrigan
patent: 4101180 (1978-07-01), Anderson et al.
patent: 4114902 (1978-09-01), Orlowski
patent: 4363490 (1982-12-01), Kuehn
patent: 4529209 (1985-07-01), Nii et al.
patent: 4667967 (1987-05-01), Deuring
patent: 4743034 (1988-10-01), Kakabaker et al.

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