| 摘要 |
<p>The invention relates to a high-pressure pump, having a fluid-filled pump inner chamber (2) in a pump housing (1), in which a pump camshaft (3) having at least one cam (5a, 5b) is rotatably mounted, and at least one pump cylinder, in which a pump tappet can be moved in a translational manner to convey fluid by means of a roller (6) of a roller tappet (7) rolling on the cam track of the pump camshaft (3), and wherein changing volumes (V1, V3, V4) in the pump inner chamber (2), which are formed by the rotating cams (5a, 5b) and the roller tappet (7), are connected via a flow cross section for fluid exchange. According to the invention, the equalisation flow of the increasing and reducing volumes (V1, V3, V4) formed in the pump inner chamber (1) between the rotating cams (5a, 5b) and the roller tappet (7) is optimised. This is achieved in that the flow cross section is arranged in the region of the roller tappet (7) extending into the pump housing (1) and adjacent to the pump inner chamber (2).</p> |
