(19)

(11)

EP 0 285 632 A1

(12)

(43) Date of publication: 12.10.1988 Bulletin 1988/41 (21) Application number: 87906587.0 (22) Date of filing: 06.10.1987

(51) International Patent Classification (IPC):  F01N 1/ 00( . ) G10K 11/ 16( . ) G10K 15/ 04( . ) F16F 15/ 02( . ) G10K 11/ 178( . ) (86) International application number: PCT/GB1987/000706 (87) International publication number: WO 1988/002912 (21.04.1988 Gazette 1988/09)

(84) Designated Contracting States: BE DE FR GB IT NL SE (30) Priority: 07.10.1986 GB 19860024053 19.12.1986 GB 19860030422 (71) Applicant: Adaptive Control Limited GB-Southampton SO9 5HJ (GB)	(72) Inventors: ELLIOTT, Stephen, John Winchester Hampshire (GB) NELSON, Philip, Arthur Southampton (GB) STOTHERS, Ian, McGregor Eastleigh Hampshire (GB) (74) Representative: Boutland, John Anthony  Barker, Brettell & Boutland Prudential Buildings 97-101 Above Bar Street Southampton SO9 4GT Southampton SO9 4GT (GB)