Mechanical shift, pneumatic assist pilot valve
US5527160A · kind A · utility
46Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Oct 11, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L25/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pneumatic assist valve receives constant air pressure from supply air to provide the pneumatic assist to shift the pilot, eliminating false signals acting on the trip rod and the design also assures the pilot has completely shifted before diaphragm reversal occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.