Title:
FUEL SUPPLY DEVICE OF ENGINE
Document Type and Number:
Japanese Patent JP2004162623
Kind Code:
A
Abstract:
To reduce fuel consumption and emission by increasing swiftly a fuel pressure at an engine start initial state without increasing cranking load, and enabling fine atomization in a fuel spraying by a high pressure fuel injection.
A rotation ratio variable transmission mechanism 5 with a variable drive rotation ratio is arranged to a power transmission passage ranging from a crankshaft 18 of the engine to a high pressure fuel pump 4. This rotation ratio variable transmission mechanism 5 controls a pump rotation speed of the high pressure fuel pump 4 so as to be greater than a normal pump rotation speed at the engine start initial state after engine complete explosion by cranking.
Inventors:
HASEGAWA KAZUYA
MATAYOSHI YUTAKA
MATAYOSHI YUTAKA
Application Number:
JP2002330145A
Publication Date:
June 10, 2004
Filing Date:
November 14, 2002
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F02D1/02; F02D41/06; F02D41/20; F02D41/38; F02D41/40; F02D45/00; F02M39/02; F02M47/00; F02M55/02; F02N15/02; F02N15/04; F02N99/00; (IPC1-7): F02M39/02; F02D1/02; F02D41/06; F02D41/20; F02D45/00; F02M47/00; F02M55/02
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi
Hiromichi Kobayashi
Tomioka Kiyoshi
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