Crescent gear pump with hypo cycloidal and epi cycloidal...

Details Crescent gear pump with hypo cycloidal and epi cycloidal... Crescent gear pump with hypo cycloidal and epi cycloidal...

F - Mech Eng,Light,Heat,Weapons

04

C

103/82

F04C 2/08 (2006.01) F04C 2/10 (2006.01)

Patent

CA 2028064

A crescent pump gear including: a housing having a chamber communicating with an intake port and a discharge port; a shaft journaled for rotation within said chamber; an externally toothed inner gear mounted centrally on said shaft about a first axis; an internally toothed annular gear eccentrically mounted for rotational engagement with said inner gear about a second axis; a crescent contacting a portion of said inner and outer gears; said inner gear has a dual cycloidal tooth profile generated about a first generating circle and said outer gear has a dual cycloidal tooth profile generated about a second generating circle.

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