HOUSING FOR GEAR PUMPS OR MOTORS

摘要

A section of an extrusion profile constitutes a housing especially for use for accomodating a gear pump or motor. The housing has a substantially cylindrical outer contour and a substantially oval cross section and an inner chamber which constitutes at least one longitudinal cylinder having at least one open end and surface lines which extend parallel with the surface lines of the outer contour and perpendicular to the original line threads or flow lines of the extrusion profile section so as to improve the fatigue resistance and especially the tensile fatigue resistance of the housing.