| 摘要 |
The diaphragm suction pump has a pump chamber ( 7 ) located in a base plate ( 6 ), the wall of said chamber extending in a conical manner from a central flat base section ( 7 ') to the lateral edge ( 8 ). The elastic pump diaphragm ( 5 ), which spans the pump chamber ( 7 ), is configured in such a way that it lies tightly against the entire pump chamber wall at the top dead center point of the drive connecting rod ( 4 ). The diaphragm ( 5 ) consists of a self-supporting elastic material with rear recesses ( 9; 10 ), which form hinges that can be elastically pretensioned during the operation of the diaphragm ( 5 ).
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