MOTOR VEHICLE VACUUM PUMP |
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| 申请号 | US15115694 | 申请日 | 2015-02-02 | 公开(公告)号 | US20170009770A1 | 公开(公告)日 | 2017-01-12 |
| 申请人 | PIERBURG PUMP TECHNOLOGY GMBH; | 发明人 | ENVER DES; MORITZ JOHANNES JOB; | ||||
| 摘要 | A motor vehicle vacuum pump includes a pumping chamber in which a pump rotor rotates to compress a gas, an outlet chamber into which the gas exits, a separation wall which includes a valve opening and a valve seat arranged on an outlet side of the separation wall around the valve opening. The separation wall separates the pumping chamber from the outlet chamber. An outlet valve is formed as a non-return valve in the separation wall. The outlet valve is formed by the valve opening in the separation wall and includes a valve body with a closing body. The outlet valve has the gas exit therethrough from the pumping chamber into the outlet chamber. A corresponding part of the closing body is supported on the valve seat when the closing body is in a closed position. The valve seat and/or the corresponding part of the closing body includes microgrooves. | ||||||
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| 说明书全文 | |||||||
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