High pressure pump for fluid jet slitter
US4239448A · kind A · utility
4Cited by
14References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1977 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Oct 25, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D1/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A high-pressure liquid pump for small quantities of liquid such as water to be used in water cutting devices such as for continuously slitting a moving paper web with the pump having an outer annular shell driven in rotation and a pair of hydrodynamic shoes facing the shell with liquid delivery passages therethrough and the shell driven in rotation around the shoes and the shoes mounted on arms with hydraulic pressure members to force the shoes against the shell and control the output pressure of the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.