发明名称 |
Method and device for dosing pumping |
摘要 |
A method of pumping a product by means of a dosing pump unit entails that two individually driven pump chambers, which are connected with a common outlet, are controlled in such a way that the suction phases of the pump chambers overlap each other so that the total inflow to the pump unit is maintained constant. A pump unit includes two pump chambers which have a common inlet and outlet. Communication between the pump chambers and the inlet and outlet is controlled by a valve body, having an inlet passage that is formed such that it can be oriented to connect both pump chambers with the inlet.
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申请公布号 |
US5304041(A) |
申请公布日期 |
1994.04.19 |
申请号 |
US19920933084 |
申请日期 |
1992.08.21 |
申请人 |
TETRA DEV-CO |
发明人 |
FONTANAZZI, PAOLO;FINI, ALBERTO |
分类号 |
F04B7/00;B65B3/32;F04B11/00;F04B15/02;(IPC1-7):F04B13/00 |
主分类号 |
F04B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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