VANE PUMP Russian patent published in 2011 - IPC F04D29/58 

FIELD: engines and pumps.

SUBSTANCE: vane pump with side supply of working fluid comprises shaft 3, passing through input header 2 with gap 4, blade impeller 5 and bearing 6, installed on shaft at both sides of gap 4, and holes 7 to supply cooling liquid to bearing, on shaft 3 along gap 4 there is helical pump 10 with input from side of bearing 6 and output towards blade impeller 5.

EFFECT: increased suction property of blade pump with provision of reliable cooling of shaft support bearing.

1 dwg