(19)
(11) EP 1 344 927 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.12.2003 Bulletin 2003/50

(43) Date of publication A2:
17.09.2003 Bulletin 2003/38

(21) Application number: 03251474.7

(22) Date of filing: 10.03.2003
(51) International Patent Classification (IPC)7: F02F 1/42, F02F 1/24, F02F 7/00, F02B 67/04, F02M 39/02, F02M 37/06
(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: 11.03.2002 JP 2002066123

(71) Applicants:
  • AICHI KIKAI KOGYO KABUSHIKI KAISHA
    Nagoya-shi, Aichi-ken (JP)
  • NISSAN MOTOR CO., LTD.
    Yokohama-shi Kanagawa-ken (JP)
  • Renault S.A.
    92513 Boulogne Billancourt Cedex (FR)

(72) Inventors:
  • Hada, Masatoshi, c/o Aichi Kikai Kogyo K. K.
    Nagoya-shi, Aichi-ken (JP)
  • Ueno, Tarou, c/o Nissan Motor Co., Ltd.
    Yokohama-shi, Kanagawa-ken (JP)

(74) Representative: Senior, Alan Murray 
J.A. KEMP & CO., 14 South Square, Gray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB)

   


(54) Cylinder head


(57) A cylinder head is provided which can surely return the oil within the sub-cam chamber provided outside the rear end wall into the inside of the cylinder head. In the cylinder head, the front and the rear end wall are formed in parallel; the extension of the camshaft is disposed outside the rear end wall; a separate cover member is mounted on the outside of the rear end wall to form a sub·cam chamber for covering the extension; and an oil-returning hole is formed through the rear end wall so as to return the oil within the sub-cam chamber into the inside of the rear end wall.






Search report