Suction-throttled vane pump for diesel internal combustion engine, has pressure kidney with center provided related to datum-axis that is right-angled to dividing line dividing suction region from pressure region

摘要

The pump (10) has a suction region (40) with a suction kidney (28), and a pressure region (42) with a fluid connection (32) extending against direction of rotation (24) based on a pressure kidney (30). A center (48) of the pressure kidney is provided related to a datum-axis (46a). The datum-axis is right-angled to a dividing line (44) that divides the suction region from the pressure region within a region of minimum cell volume. The center runs through an axis of the rotation (14) of a rotor (12), and is arranged to the dividing line.