The invention is within the field of hydraulic gear pumps. The pump contains a metal casing, recessed in which there are two parallel cylindrical chambers, which communicate along their generatrices and in which two intermeshing gear wheels or gear trains (gear systems) can rotate. The cylindrical chambers are provided with annular channels which are recessed into the surface of the chamber itself.
申请公布号
DE3838658(A1)
申请公布日期
1989.07.13
申请号
DE19883838658
申请日期
1988.11.15
申请人
OLEODINAMICA CASAPPA S.P.A., COLLECCHIO, PARMA, IT