Apparatus for monitoring engines
US4475382A · kind A · utility
7Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1982 |
| Grant date | Oct 9, 1984 |
| Priority date | — |
| Expiry date | Jul 21, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2250/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Oil mist detecting apparatus comprises a measuring chamber which receives air, and oil mist if present, from an engine compartment. The apparatus includes a radiation source which emits light into the measuring chamber, and the radiation sensor which is so disposed as to receive light scattered by oil mist in the chamber. A second radiation source is preferably provided for testing purposes, the second source being arranged to emit radiation directly to the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.