Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2018/203360
Kind Code:
A1
Abstract:
According to the present invention, while the wall temperature of an inner circumferential surface (32a) of a cylinder bore (32) is low, the mechanical compression ratio of an internal combustion engine (1) is fixed. Specifically, when a cooling water temperature (Tw) at a water jacket (31a) that is inside a cylinder block (31), which correlates with a cylinder bore wall temperature, is below a prescribed temperature (Twth), the mechanical compression ratio of the internal combustion engine (1) is fixed at a prescribed compression ratio regardless of operating conditions, which keeps a first piston ring (35) from sliding along a corroded portion of the cylinder bore (32) and makes it possible to delay the progress of corrosion.

Inventors:
HOSHIKAWA, Hiroaki (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
KANEKO, Kakuzou (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
MORIGUCHI, Yukinaga (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
MURAKI, Kazuo (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
Application Number:
JP2017/017109
Publication Date:
November 08, 2018
Filing Date:
May 01, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NISSAN MOTOR CO., LTD. (2 Takara-cho, Kanagawa-ku Yokohama-sh, Kanagawa 23, 〒2210023, JP)
International Classes:
F02D15/04; F02B75/04; F02D15/02; F02D43/00
Domestic Patent References:
WO2014141729A12014-09-18
Foreign References:
JP2007146701A2007-06-14
JP2005069131A2005-03-17
JP2013002370A2013-01-07
JP2009293496A2009-12-17
JP2009215913A2009-09-24
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (Ekisaikai Bldg. 1-29, Akashi-cho, Chuo-k, Tokyo 44, 〒1040044, JP)
Download PDF: