(19)
(11) EP 1 223 334 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.01.2004 Bulletin 2004/01

(43) Date of publication A2:
17.07.2002 Bulletin 2002/29

(21) Application number: 02250126.6

(22) Date of filing: 09.01.2002
(51) International Patent Classification (IPC)7F02M 37/06
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 10.01.2001 GB 0100667

(71) Applicant: Delphi Technologies, Inc.
Troy, MI 48007 (US)

(72) Inventors:
  • Collingborn, Peter Alban George
    Gillingham, Kent ME8 8RX (GB)
  • Thornthwaite, Ian Roy
    Gillinham, Kent ME7 3PJ (GB)
  • Wood, Christopher
    Gillingham, Kent ME8 9BY (GB)

(74) Representative: Keltie, David Arthur et al
David Keltie Associates Fleet Place House 2 Fleet Place
London EC4M 7ET
London EC4M 7ET (GB)

   


(54) Fuel pump


(57) A fuel pump for use in an engine comprises a pump housing (10) and a plunger member (30) which is reciprocable within a plunger bore (32) provided in the pump housing (10) under the influence of a cam drive arrangement (20, 36, 38) so as to cause pressurisation of fuel within a pumping chamber (34). The cam drive arrangement includes a reciprocable shoe (36) and a roller member (38) and is driven, in use, by means of an associated drive shaft (18). The roller member (38) is located radially inward of the shoe (36) and is cooperable with a cam surface (20a) of the cam drive arrangement so as to impart reciprocable movement to the shoe (36) upon rotation of the drive shaft (18). The pump also includes a tubular member (26) which is secured to the pump housing (10) and arranged such that it is substantially coaxial with the drive shaft (18), the tubular member (26) being further arranged such that it guides reciprocal movement of the shoe (36), in use.







Search report