| 摘要 |
<p>A vacuum assist pump system includes a vacuum assist pump (1) for assisting to a brake system by vacuum, wherein it includes a suction compensation pump (8) connected with the vacuum assist pump (1). Advantageously, a vacuum compensation reservoir (7) is arranged between the vacuum assist pump (1) and the suction compensation pump (8). The vacuum compensation reservoir (7) comprises a vacuity sensor (11) for its internal vacuity and two interfaces. One of the two interfaces communicates to the suction compensation pump (8), the other communicates to the vacuum assist pump (1).</p> |
