Clutch connected multi-stage impeller pump
US3961859A · kind A · utility
8Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1975 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Apr 17, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D15/0072
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A boost pump incorporates a low-flow impeller pump for charging the inlet of a gas producer fuel pump and a high-flow impeller pump for charging the inlet of an augmentor fuel pump. The low-flow pump is connected to a drive shaft so as to be continuously driven thereby. The drive shaft may be placed in driving connection with the high-flow pump through the medium of a friction clutch which is engageable by the application of a fluid pressure. Disengagement of the high-flow impeller, when augmentation is not required, significantly contributes to an increase in pump efficiency and a reduction in heating of the fluid being pumped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.