(19)
(11) EP 0 131 598 A1

(12)

(43) Date of publication:
23.01.1985 Bulletin 1985/04

(21) Application number: 84900459.0

(22) Date of filing: 21.12.1983
(51) International Patent Classification (IPC): 
B60T 13/ 16( . )
F04B 49/ 18( . )
 F04B 5/ 00( . )
(86) International application number:
PCT/US1983/002017
(87) International publication number:
WO 1984/002558 (05.07.1984 Gazette 1984/16)
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 29.12.1982 US 19820454463

(71) Applicant: NORTON, Peter
Dearborn MI 48126 (US)

(72) Inventor:
  • NORTON, Peter
    Dearborn MI 48126 (US)

   


(54) MULTIPLE DISPLACEMENT HYDRAULIC PUMP SYTEM WITH AUTOMATIC DISPLACEMENT CONTROL FOR BRAKE BOOSTERS AND THE LIKE