Rotary expansible chamber devices – Wear elements or antifriction means in vane or abutment slot
Patent
1998-11-04
2000-09-19
Denion, Thomas
Rotary expansible chamber devices
Wear elements or antifriction means in vane or abutment slot
418173, 418265, 29888025, 123 845, F01C 2100
Patent
active
061202711
ABSTRACT:
A vane slot assembly and installation method for a rotary vane pumping machine including a rotor with a rotor axis of rotation. The rotor has a vane slot with two opposing, azimuthally separated, slot side walls. The rotor has a primary slot gear rack disposed radially along a first slot side wall. A radially reciprocating vane is movably disposed between the slot side walls. The vane has side walls facing the slot side walls, and has a primary vane gear rack disposed radially along a first vane side wall facing the first slot side wall. A plurality of vane slot rollers are movably disposed between the first slot side wall and the first vane side wall. The rollers have axes of rotation substantially parallel to the rotor axis and include an aligned roller having a primary roller gear. The primary roller gear engages the primary vane gear rack and the primary slot gear rack. As a result, friction-reducing roller bearings between the vane and the rotor slot are properly aligned radially.
REFERENCES:
patent: 2048825 (1936-07-01), Smelser
patent: 2071799 (1937-02-01), Mabille
patent: 2562698 (1951-07-01), Clerc
patent: 3812828 (1974-05-01), Griffiths
patent: 4451219 (1984-05-01), Kurherr
Denion Thomas
Mallen Research Corporation
Trieu Thai-Ba
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