Housing arrangement for an external rotar driven lubricating pum

Details Housing arrangement for an external rotar driven lubricating pum Housing arrangement for an external rotar driven lubricating pum

1995-11-22

1998-10-20

Thorpe, Timothy

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

417362, 418171, 418144, F04C 210

Patent

active

058237500

ABSTRACT:
An external-rotor-driven lubricating pump comprising a lubricant guidance part including a suction port, an outer wall, a carrier section, a discharge port, a lubricant feed space disposed between the carrier section and the outer wall and connected with the suction port, with a lubricant delivery space disposed between the carrier section and the outer wall and connected with the discharge port, and a pump part including a drive gear, an internally-toothed external rotor, with an externally-toothed internal rotor having one tooth less than the number of teeth on the external rotor, the external rotor and the internal rotor upon meshing pumping the lubricant from the lubricant feed space into the lubricant delivery space, with a shaft supporting the drive gear in the carrier section, the drive gear being fixed to the external rotor, the drive gear forming together with the external rotor the outer closure of the lubricating pump at its pump part end, with the internal rotor being mounted loosely on a collar of the carrier section.

REFERENCES:
patent: 2792788 (1957-05-01), Eames, Jr.
patent: 3407741 (1968-10-01), Weber et al.
patent: 4185717 (1980-01-01), Ford, Jr. et al.
patent: 4432712 (1984-02-01), Eisenmann
patent: 5395217 (1995-03-01), Hoffmann et al.

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