Vacuum pump with resilient drive

Details Vacuum pump with resilient drive Vacuum pump with resilient drive

1996-05-28

1998-01-13

Vrablik, John J.

Rotary expansible chamber devices

Interconnected vanes

Integrally connected

418259, 418270, 464101, F04C 18344, F04C 2900

Patent

active

057072221

ABSTRACT:
A vacuum pump, particularly adapted for use with a power assisted brake system of a motor vehicle, includes a pump housing with a small diameter section and a larger section. A rotor in the housing with a smaller diameter coupling section and with a larger diameter pump section in the larger section of the housing. A rotor wing in the larger section of the housing is received in a slot in the rotor for being rotated by the rotor. A drive element passing along the axis of the rotor is connectable with a coupling to drive the drive element and is positioned between the two half bodies of the rotor for rotating the rotor and the wing of the rotor. The drive element has a coupling section of elastic resilient material which is received in a slot in the rotor and has wing sections above and below the plane of the coupling section which define a slot in the rotor in which the rotor wing is received, such that the drive element can absorb torque and oscillations.

REFERENCES:
patent: 2243900 (1941-06-01), Fulcher
patent: 2897662 (1959-08-01), Gondek
patent: 3016723 (1962-01-01), Gondek
patent: 4944279 (1990-07-01), Woodard
patent: 4953517 (1990-09-01), McGovern et al.

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