Multistage blowdown valve for a compressor system
US6478546B2 · kind B2 · utility
0Cited by
22References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Dec 18, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2207/703
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A multi-stage blowdown valve is provided that uses a single control signal to simultaneously decompress the interstage and the second stage in a compressor system. The valve uses a series of sliding spools located linearly within a single bore to either prevent or allow fluid communication between two isolated passageways each having an inlet port and a discharge port. The valve, when used as a two stage blowdown valve in a multi-stage compressor system, can prevent compressor failure from occurring by ensuring that both the interstage and the second stages are decompressed. not only the interstage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.