GEAR TYPE HYDRAULIC MACHINE Russian patent published in 1997 - IPC

FIELD: automotive industry, aviation industry; hydraulic drives. SUBSTANCE: faces are made on each tooth of each gear on part of length of edges formed by working and end face surfaces. Width of faces increases towards tooth point starting from zero in points of tooth contact corresponding to their symmetrical arrangement relative to plane passing through axes of gear rotation. Recesses can be made on working surfaces of teeth with cross section increasing towards tooth point starting from zero in points of tooth contact corresponding to their symmetrical arrangement relative to plane passing through axes of gear rotation. EFFECT: enlarged operating capabilities. 2 cl, 4 dwg