Single seal gear pump

Details Single seal gear pump Single seal gear pump

1998-05-27

2000-03-07

Dolinar, Andrew M.

Pumps

Motor driven

Electric or magnetic motor

4174104, F04B 1700, F04C 218

Patent

active

060331933

ABSTRACT:
A gear pump is disclosed. The gear pump has a pump body with an inlet, a discharge and an interior side to the body. The gear pump also has a cavity plate having a gear cavity formed therein facing and abutting the interior side of the pump body. A drive gear and a driven gear are located within the gear cavity and engage one another. Each gear is rotatably supported on a shaft between the pump body and the cavity plate. A drive magnet assembly is connected to the drive gear shaft. A magnet cup has an interior chamber and a sealing surface which abuts against the interior side of the pump body providing the only required seal of the gear pump. The magnet cup is received over and encapsulates the magnet assembly, the cavity plate and the gears within the interior chamber and compresses the gear cavity against the interior surface of the body without requiring additional sealant to seal the gear cavity and magnet cup interior chamber.

REFERENCES:
patent: 4065235 (1977-12-01), Furlong et al.
patent: 4111614 (1978-09-01), Martin et al.
patent: 4127356 (1978-11-01), Martin et al.
patent: 4165206 (1979-08-01), Martin et al.
patent: 4846641 (1989-07-01), Pieters et al.
patent: 5466131 (1995-11-01), Altham et al.

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