Method for supplying liquids by means of a pump combination comprising of two single oscillating displacement pumps, and device for accomplishing the method
US6113368A · kind A · utility
7Cited by
12References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Jun 26, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B9/1174
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.