Pumping system and method for a beverage production apparatus
US10893770B2 · kind B2 · utility
0Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2014 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Jul 20, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/36
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention presents a pumping system (1) with a preheated reservoir (2), a main pump (4) for pumping a preheated liquid (3) from the reservoir (2), and pressurizing means (5) for pressurizing the reservoir (2). Preferably, the pressurizing means set an absolute pressure of 0.5 to 1 bar in the reservoir (2). The liquid (3) in the reservoir (2) can be heated up to 90° C. or more. The present invention achieves a nearly complete suppression of the phenomenon of cavitation at the main pump entrance, and thus achieves an increased pumping performance at elevated liquid temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.