(19)

(11)

EP 0 165 927 A1

(12)

(43) Date of publication: 02.01.1986 Bulletin 1986/01 (21) Application number: 84901167.0 (22) Date of filing: 21.02.1984

(51) International Patent Classification (IPC):  F01L 13/ 08( . ) F16K 17/ 168( . ) F04B 49/ 24( . ) (86) International application number: PCT/US1984/000266 (87) International publication number: WO 1985/002893 (04.07.1985 Gazette 1985/15)

(84) Designated Contracting States: CH DE FR GB LI SE (30) Priority: 27.12.1983 US 19830565950 (71) Applicant: CATERPILLAR TRACTOR CO. Peoria, Illinois 61629 (US)	(72) Inventor: BLUM, Randall, B. Washington, IL 61571 (US)