Spur gear with epi-cycloidal and hypo-cycloidal tooth shapes

Details Spur gear with epi-cycloidal and hypo-cycloidal tooth shapes Spur gear with epi-cycloidal and hypo-cycloidal tooth shapes

F - Mech Eng,Light,Heat,Weapons

04

C

103/74

F04C 2/08 (2006.01)

Patent

CA 2028949

ABSTRACT OF THE INVENTION A spur pump gear system comprising; a housing have a sealed chamber communicating with an intake port and a discharge port; a shaft journalled for rotation within said chamber; a drive spur gear mounted concentrically on said shaft about a first axis within said chamber and having a drive gear pitch circle, said drive spur gear having epi and hypo cycloid tooth profiles generated about the pitch circle of the drive spur gear; a driven spur gear disposed internally within said chamber for rotation about a second axis and having a driven gear pitch circle, said driven spur gear having epi and hypo cycloid tooth profiles generated about the pitch circle of the driven gear; said epi hypo cycloid tooth profile of said drive spur gear engagedly driving said hypo cycloid tooth profile of said driven spur gear.

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