F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
103/82
F04C 2/02 (2006.01) F04C 2/10 (2006.01) F04C 2/22 (2006.01) F04C 3/00 (2006.01) F04C 19/00 (2006.01)
Patent
CA 1224083
ABSTRACT A gerotor pump is arranged for unidirectional flow irrespective of direction of rotation of the pump by arranging for displacement of the axis of eccentricity of the annulus and rotor upon drive reversal, the annulus being mounted in a carrier 14, Figure 1, with freedom for movement in a first direction within the carrier, whilst the carrier itself is pivoted (24) in an outer . housing 15, the carrier being free for movement in a second direction within the housing. The effect of normal drive of the rotor is to hold the parts in the Figure 1 position whilst pumping continues, but in the event of drive reversal a pressure fluctuation causes the annulus to be displaced within the carrier and then the carrier to be displaced within the housing so as to bring the parts to substantially the mirror image of the Figure 1 position allowing continued pumping in the same direction from inlet to outlet under reversed drive.
462674
Concentric Pumps Limited
Ridout & Maybee Llp
LandOfFree
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