Regulator for regulating the output pressure of a motor driven pump
US4560322A · kind A · utility
Inventor
Key dates
| Filing date | Jan 12, 1984 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | Jan 12, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Regulator in a motor driven pump for the regulation of the output pressure according to a predetermined value. An automatically functioning reliable regulation according to a predetermined value in order to impede cavitation and reduce the risk of an interrupted flow of liquid in the pump is provided by means of the invention. This is made possible by means of a double diaphragm (12) via a preferably spring biased transmission means (4, 10) of movement being in connection with a controlling means serving the purpose to control the capacity of the power source of the pump and with a space (27) between the diaphragm elements (12A, 12B) of said double diaphragm (12) being connected with the output pressure (30) from the pump for the actuation of the double diaphragm (12) in order to adjust the controlling means of the capacity in a desired degree, and increased or decreased fluid output from the pump bringing about a displacement of the double diaphragm (12) to its maximum position (FIG. 4) or minimum position (FIG. 5) respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.