Integrated emergency lubrication system
US4717000A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Aug 5, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N29/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An integrated emergency lubrication system is provided to lubricate the bearings of a gas turbine engine in the event that the normal lubrication system for the engine fails for any reason. The emergency system includes an accumulator for storing oil, derived from the normal lubrication system, that is released in a controlled manner to lubricate the engine's bearings for several minutes after the normal lubrication system fails. During that time, the operator of the engine has an opportunity to cope with the situation. Energy for operating the emergency lubrication system is derived from compressed air bled form the compressor section of the engine, the compressed air also being combined with oil from the accumulator to form an air/oil mist that is sprayed over the bearings to be lubricated. A plurality of valves provided to control the flow of the oil and the air and to regulate the pressure of the air, all valves and associated elements being integrated in an assembly that is relatively inexpensive to manufacture, highly reliable, and easily maintained. The configuration also minimizes vulnerability to extraneous forces and has the further benefit of not being attitude sensitive…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.