Fluid pump, especially high pressure fuel pump, has working chamber connected to lubricant expansion region in area before transport element(s) looking in eccentric shaft/camshaft rotation direction

摘要

The pump (16) has a housing (24) with a drive chamber (26), an eccentric shaft or camshaft (36) at least partly in the working chamber and at least one transport element (54) that can be moved reciprocally by the eccentric shaft or camshaft, at least indirectly. The working chamber is connected to a lubricant expansion region in an area (73) before the transport element(s) looking in the direction of rotation of the eccentric shaft or camshaft.