Engine Sensors
US4774834A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Sep 17, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L23/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An engine sensor includes a radiation response element which in use is coupled by a radiation transmission path with a combustion chamber of an internal combustion engine so that a signal is provided when combustion occurs in the combustion chamber. The radiation transmitting path is incorporated into a component such as an engine starting aid which is mounted in a bore in the cylinder head of the engine. In the sample a quartz rod is locating in a tubular member about which is wound an electric heating element. The quartz rod can transmit light through a powdered glass filling to a through quartz rod at the end of which is mounted the sensing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.