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.
申请公布号
US4774834(A)
申请公布日期
1988.10.04
申请号
US19870097954
申请日期
1987.09.17
申请人
LUCAS INDUSTRIES PUBLIC LIMITED COMPANY
发明人
RUSSELL, MICHAEL F.;BRUCE, RUSSELL A.;MOORE, JOHN H.