Title:
ガソリン内燃機関の燃料供給方法
Document Type and Number:
Japanese Patent JP4214586
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable optimal variable control of the octane number of supplied fuel in accordance with an engine operation condition, and stabilize compression self-ignition combustion in all operation regions. SOLUTION: In low-load operation, only low-octane-number fuel of high ignition is supplied from an intake port fuel injection valve 7, so that stabilization of combustion is ensured. In middle- or high-load operation, the supply amount of low-octane-number fuel is kept constant, whereas the supply amount of high-octane-number fuel with high knocking-resistance injected from an in- cylinder fuel injection valve 10 is increased. The ratio of high-octane-number fuel in all the fuel supply amount is increased as a load gets higher. Therefore, occurrence of knocking can be suppressed, and stable compression self-ignition combustion is enabled in all operation regions.
Inventors:
Koji Hiraya
Tsuyoshi Taniyama
Takayuki Arai
Akihiro Iiyama
Tsuyoshi Taniyama
Takayuki Arai
Akihiro Iiyama
Application Number:
JP35343498A
Publication Date:
January 28, 2009
Filing Date:
December 11, 1998
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02B1/14; F02D19/08; F02B17/00; F02B23/02; F02D19/06; F02D19/12; F02D41/00; F02D41/02; F02D41/04; F02D43/00; F02M43/00; F02M51/00; F02M61/14; F02M63/00; F02M69/00; F02B1/12
Domestic Patent References:
| JP7247872A | ||||
| JP62017356A | ||||
| JP7332140A | ||||
| JP10252608A | ||||
| JP61008465A | ||||
| JP56122765U |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu