Active and passive self-evacuation of a self-priming water pump
US10543621B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2015 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Jan 31, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/0603
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A water supply apparatus for the supply of water to a machine tool, including a water pump, a water accumulator device, a suction line, a supply line and a valve device reversibly adjustable into a first and a second position. The water pump is positioned downstream of the valve device. A first connecting line, a second connecting line and a return line are provided. Here, in the first position, the first connecting line, the second connecting line and the return line are connected to one another such that water can be conveyed from the water pump, from the first connecting line, from the second connecting line, from at least a part of the suction line and from at least a part of the supply line into the return line, and, in the second position, the first connecting line, the second connecting line and the return line are not connected to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.