| 摘要 |
<p>A pulse pressure decreasing type variable oil pump may include an inner chamber rotatably receiving a vane therein, wherein an outer ring rotatably covers the inner chamber, a housing enclosing the outer ring, the inner chamber, and the vane therein and forming a narrow section between the housing and the outer ring to increase pressure of oil flowing therein, and a pressure chamber grooved in an inner side of the housing and fluid-communicating the inner chamber with the narrow section.</p> |
