(19)

(11)

EP 0 996 817 A1

(12)

(43) Date of publication: 03.05.2000 Bulletin 2000/18 (21) Application number: 98932391.0 (22) Date of filing: 07.07.1998

(51) International Patent Classification (IPC)7: F02D 9/06, F02D 11/04, F16K 31/44 (86) International application number: PCT/GB9801/997 (87) International publication number: WO 9904/149 (28.01.1999 Gazette 1999/04)

(84) Designated Contracting States: DE FR GB IT SE (30) Priority: 16.07.1997 GB 9714888 (71) Applicant: WABCO AUTOMOTIVE U.K. LIMITED Morley,Leeds, LS27 0HQ (GB)	(72) Inventor: KEEGAN, Colm, Michael, Patrick Lincoln LN2 2PN (GB) (74) Representative: Chettle, Adrian John et al Withers & Rogers,Goldings House,2 Hays Lane London SE1 2HW London SE1 2HW (GB)