Invention Grant
- Patent Title: Method for supplying liquids by means of a pump combination comprising of two single oscillating displacement pumps, and device for accomplishing the method
- Patent Title (中): 通过包括两个单个摆动排量泵的泵组合供应液体的方法以及用于实现该方法的装置
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Application No.: US105949Application Date: 1998-06-26
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Publication No.: US06113368APublication Date: 2000-09-05
- Inventor: Frank Hofmann
- Applicant: Frank Hofmann
- Applicant Address: DEX Rellingen
- Assignee: Walter Hofmann GmbH
- Current Assignee: Walter Hofmann GmbH
- Current Assignee Address: DEX Rellingen
- Priority: DEX19727623 19970628
- Main IPC: F04B9/117
- IPC: F04B9/117 ; F04B11/00
Abstract:
A method and apparatus for supplying liquids by means of a pump combination comprising two single oscillating displacement pumps is provided, wherein a supply pressure of the pump supplying liquid into a user duct is used as a control value of a pressure controller, such that a pressure stroke movement of the other pump which is generating a pre-compression pressure, is discontinued when the pre-compression pressure equals the supply pressure, and the pre-compression pressure is maintained.
Public/Granted literature
- USD433506S Double drill guide Public/Granted day:2000-11-07
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