Method of making gear pump

Details Method of making gear pump Method of making gear pump

2006-02-14

2006-02-14

Jimenez, Marc (Department: 3729)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S888020, C029S558000, C418S182000

Reexamination Certificate

active

06996905

ABSTRACT:
An improved high pressure intermeshing gear pump that achieves high efficiency and a low cost by forming the pumping cavity such that no fillets exist at the corners permitting closed fits without utilizing bearing end plates. In addition an improved coupling between the gears and their supporting shafts is disclosed as is a simplified machining method that eliminates burrs that may be formed during the drilling operations.

REFERENCES:
patent: 1913663 (1933-06-01), Ferris
patent: 3309997 (1967-03-01), Kita
patent: 4605344 (1986-08-01), Hartmann
patent: 4608004 (1986-08-01), Obidin et al.
patent: 5961255 (1999-10-01), Korbonski
patent: 2002/0157231 (2002-10-01), Conrad

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