Corner seals for rotary mechanisms

Details Corner seals for rotary mechanisms Corner seals for rotary mechanisms

1975-11-12

1976-08-03

Smith, Robert I.

Rotary expansible chamber devices

With mechanical sealing

Seal on working member periphery separates inlet and outlet...

418142, F01C 1904

Patent

active

039726606

ABSTRACT:
An improved corner seal for rotary mechanisms, such as trochoidal or slant axis rotary mechanisms. A rotor is provided with a piston seal receiving bore and the piston seal is received in the bore to be carried by the rotor and sealingly engage a wall of the mechanism operating chamber. A first seal receiving groove is disposed in the rotor and intersects the bore and a correspondingly dimensioned first seal receiving groove is located in the piston seal to be substantially centered with the first groove in the rotor. A first seal is received in the grooves. A second seal receiving groove is located in the rotor and intersects the bore at an angle to the first seal receiving groove. A second seal receiving groove is disposed in the piston seal and is only nominally centered with the second seal receiving groove in the rotor. It is also substantially wider than the second seal receiving groove in the rotor. A second seal is received in the second seal receiving grooves and a further seal is disposed in the second seal receiving groove in the piston seal on one side of the second seal.

REFERENCES:
patent: 3263912 (1966-08-01), Frenzel
patent: 3485217 (1969-12-01), Irgens
patent: 3829259 (1974-08-01), Baynes
patent: 3930767 (1976-01-01), Hart

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