Feed pump

Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Turbine regenerative pump

Reexamination Certificate

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Details

C415S055200, C415S055300, C415S055400, C415S101000, C415S102000

Reexamination Certificate

active

06942446

ABSTRACT:
The invention relates to a feed pump (2) that is configured as a side-channel pump with a plurality of identically designed feed chambers (6, 7) with outlet channels (22, 23) that are disposed opposite one another, thereby eliminating the radial forces acting upon the impeller (4) of the feed pump (2). The feed pump (2) according to the invention is especially wear-free and has a very high degree of efficiency.

REFERENCES:
patent: 1861837 (1932-06-01), Burks
patent: 1960659 (1934-05-01), Burks
patent: 4678395 (1987-07-01), Schweinfurter
patent: 5702229 (1997-12-01), Moss et al.
patent: 6100618 (2000-08-01), Schoeb et al.
patent: 6152688 (2000-11-01), Staab et al.
patent: 6224323 (2001-05-01), Murase et al.
patent: 6280157 (2001-08-01), Cooper
patent: 6425734 (2002-07-01), Marx
patent: 6471466 (2002-10-01), Marx et al.
patent: 6527507 (2003-03-01), Rollwage et al.
patent: 19926587 (2000-12-01), None
patent: 61190191 (1986-08-01), None

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