Pump system for a firefighting vehicle
US7874373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2006 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Oct 20, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D15/0072
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A firefighting vehicle having a dual pressure pump system includes a fluid supply, a first pump stage coupled to the fluid supply and configured to pump fluid at a first pressure, a second pump stage coupled to the first pump stage and configured to pump fluid at a second pressure, the second pressure being substantially different from the first pressure, a fluid manipulator; and a valving arrangement coupling the first pump stage and the second pump stage to the fluid manipulator, the valving arrangement being selectively adjustable between a first position forming a first fluid path and a second position forming a second fluid path, wherein the first fluid path provides the fluid to the fluid manipulator at a first output pressure and the second fluid path provides fluid to the fluid manipulator at a second output pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.