Auxiliary power unit fire enclosure drain seal
US8820045B2 · kind B2 · utility
7Cited by
24References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Jun 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A drain assembly for an auxiliary power unit having a hot zone formed by a combustor case comprises a fire enclosure, a drain fitting, a discharge port and a piston seal. The fire enclosure encapsulates the hot zone of the combustor case. The drain fitting connects to the fire enclosure. The discharge port extends from the combustor case into the drain fitting. The piston seal is positioned between the drain fitting and the discharge port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.