Gear pump for vehicle hydraulic system - has meshing gears in housing with throttle in inlet and non-return valve in outlet connection

摘要

The gear pump or similar rotary piston pump comprises at least one driving gear (2) meshing with a driven gear (3) defining pump chambers (7) within a housing (1). Inlet (6) and outlet (8) chambers in the housing are connected to suction (5) and pressure (9) lines. The suction line contains a throttle (10). A non-return valve (11) or other pressure-operated valve in the pressure line prevents return flow into the chambers.