PROCEDIMIENTO Y APARATO PARA LA MECANIZACION DE PALETAS PA-RA BOMBAS DE PALETAS.

摘要

1309001 Rotary positive-displacement pumps ZAHNRADFABRIK FRIEDRICHSHAFEN AG 19 Feb 1970 [20 Feb 1969 27 Aug 1969] 8020/70 Heading F1F In a sliding-vane pump the vanes are lodged in axially-extending radial slots in the rotor and to minimize wear one or each lateral edge of each vane has a round-convex profile in crosssection. Preferably, the radially outer edge of each vane has a similar profile, this edge and the housing surface engaged thereby being ground in the direction of curvature.