(19)
(11) EP 1 435 451 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.04.2006 Bulletin 2006/16

(43) Date of publication A2:
07.07.2004 Bulletin 2004/28

(21) Application number: 03104550.3

(22) Date of filing: 04.12.2003
(51) International Patent Classification (IPC): 
F02M 25/07(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 03.01.2003 GB 0300059

(71) Applicant: Mechadyne PLC
Kirtlington, Oxon OX5 3JQ (GB)

(72) Inventor:
  • Lancefield, Timothy, Mark
    CV36 5LZ, Shipston on Stour (GB)

(74) Representative: Messulam, Alec Moses et al
A. Messulam & Co. Ltd., 43-45 High Road
Bushey Heath, Bushey, Herts WD23 1EE
Bushey Heath, Bushey, Herts WD23 1EE (GB)

   


(54) EGR valve for a turbocharged diesel engine


(57) An EGR valve for a turbocharged diesel engine has valve having a valve closure member (12) movable relative to a mating surface (14) for regulating the flow of EGR gases and a first actuator (16) for enabling the position of the valve closure member (12) to be varied continuously. A second actuator (18) is provided to close the valve fully regardless of the position of the first actuator (16), so as to enable the EGR flow to be reduced more rapidly than can be achieved by said first actuator alone.







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