(19)

(11)

EP 0 050 117 A1

(12)

(43) Date of publication: 28.04.1982 Bulletin 1982/17 (21) Application number: 81900346.0 (22) Date of filing: 17.04.1980

(51) International Patent Classification (IPC):  F01D 5/ 04( . ) F01D 5/ 28( . ) (86) International application number: PCT/US1980/000419 (87) International publication number: WO 1981/003047 (29.10.1981 Gazette 1981/25)

(84) Designated Contracting States: AT CH FR GB LI NL SE (71) Applicants: THE CARBORUNDUM COMPANY Niagara Falls, New York 14302 (US) Volkswagen Aktiengesellschaft D-38436 Wolfsburg (DE)	(72) Inventors: LONG, William David Tonawanda, NY 14150 (US) ROTTENKOLBER, Paul Josef D-Wolfsburg (DE) (74) Representative: Mock, Hans  MARKS & CLERK, Sussex House, 83-85 Mosley Street Manchester M2 3LG Manchester M2 3LG (GB)