Water jet valve assembly
US4162763A · kind A · utility
32Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1978 |
| Grant date | Jul 31, 1979 |
| Priority date | — |
| Expiry date | Jan 10, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/13
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A high-pressure fluid jet valve assembly is disclosed utilizing a double-acting piston actuated by a spool valve to reversibly actuate the valve stem. The valve stem selectively gates high-pressure cutting fluid through a seat arrangement directly into an output expansion section. Directly coupled to the expansion section is a valve head holding a jewel holder used to shape the high-pressure fluid beam for cutting purposes. The valve seal, stem and seat arrangement are designed to prevent leaching of the stem by the effect of high-pressure water, yet allow the cycling time in the order of 25 milliseconds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.