Gear pump

Details Gear pump Gear pump

1993-10-12

1995-02-14

Bertsch, Richard A.

Rotary expansible chamber devices

Interengaging rotating members

Like rotary members

F01C 124

Patent

active

053889746

ABSTRACT:
Disclosed is a gear pump which is especially suitable for discharging highly viscous media from a vacuum against a high delivery pressure. It includes a pair of gear wheels (2) and an inlet and outlet area in one housing. The inlet (4) has an enlargement (10) that extends at least as far as the plane (11) of the gear wheel axes (12). The length R of this enlargement parallel to the plane of the gear wheel axes and at right angles to the gear wheel axes is larger than the length D of the pair of gear wheels. According to this invention the enlargement (10) of gear wheels (2) has a width c in the direction of the gear wheel axes (12) which is greater than the tooth width T.

REFERENCES:
patent: 2531726 (1950-11-01), Durdin
patent: 3746481 (1973-07-01), Schippers
patent: 3837768 (1974-09-01), Haupt
patent: 4137023 (1979-01-01), Moked
patent: 4737087 (1988-04-01), Hertell

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