Radial shaft sealing ring having a sealing lip and liquid deflec

Details Radial shaft sealing ring having a sealing lip and liquid deflec Radial shaft sealing ring having a sealing lip and liquid deflec

1982-08-06

1984-05-08

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277153, F16J 1532

Patent

active

044470649

ABSTRACT:
A radial shaft sealing ring is disclosed which comprises a lip ring having a sealing lip which is resiliently pressed against the shaft to be sealed. The lip ring has a conical inner surface which surrounds the shaft and faces the liquid to be sealed off. A plurality of liquid deflectors are associated with the lip ring on the side of the sealing lip facing the sealed off liquid. The liquid deflectors are spaced apart around the circumferential periphery of the shaft. The liquid deflector have a leading surface which is essentially parallel to the axis of the shaft and which is inclined or curved forward toward the direction of shaft rotation. The inner edge of the liquid deflectors is a knife-edge like wiper which merges into the inclined or curved leading surface and which is spaced from the peripheral surface of the shaft. The ratio of the distance that the inner wiper edge extends substantially parallel to the axial direction of the shaft to the distance adjacent wiper inner edges are spaced apart around the circumferential periphery of the shaft is about 4.0 to 50.

REFERENCES:
patent: 3744805 (1973-07-01), Heinrich
patent: 4350347 (1982-09-01), Heinrich

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