(19)

(11)

EP 0 711 382 A1

(12)

(43) Date of publication: 15.05.1996 Bulletin 1996/20 (21) Application number: 94922096.0 (22) Date of filing: 07.07.1994

(51) International Patent Classification (IPC):  F02F 1/ 16( . ) F16J 15/ 08( . ) F02F 11/ 00( . ) F02B 3/ 06( . ) (86) International application number: PCT/US1994/007564 (87) International publication number: WO 1995/004217 (09.02.1995 Gazette 1995/07)

(84) Designated Contracting States: AT DE GB NL (30) Priority: 27.07.1993 US 19930097823 27.07.1993 US 19930098172 (71) Applicant: CATERPILLAR INC. Peoria Illinois 61629-6490 (US)	(72) Inventors: BOCK, Allyn, P. West Lafayette, IN 47906-1544 (US) WARD, Lloyd, A. Washington, IL 61571-1832 (US) (74) Representative: Jackson, Peter Arthur, et al  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)