Title:
DESIGN METHOD FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2021139773
Kind Code:
A
Abstract:
To provide a design method regarding a direct-injection internal combustion engine, with which it is possible to reduce the time and man-hours required for design.SOLUTION: Provided is a design method for a direct-injection internal combustion engine in which fuel is directly injected into a combustion chamber by an injector. This design method includes: a target combustion characteristic acquisition step for acquiring a target combustion characteristic that is the target value of combustion characteristic of the internal combustion engine; a target equivalent ratio distribution calculation step for calculating, on the basis of a combustion characteristic sensitivity function with which the sensitivity of the combustion characteristic to equivalence ratio distribution of a fuel-air mixture generated in the combustion chamber is quantified, target equivalence ratio distribution that is the target value of the equivalence ratio distribution with which the target combustion characteristic is achievable; and an injector requirement calculation step for calculating an injector requirement that is the requirement which the design parameters of the injector should fulfill in order to achieve the target equivalence ratio distribution.SELECTED DRAWING: Figure 3
Inventors:
WADA MASATAKE
YAMAGUCHI HIROSHI
KAWADA YUKI
YAMAGUCHI HIROSHI
KAWADA YUKI
Application Number:
JP2020038254A
Publication Date:
September 16, 2021
Filing Date:
March 05, 2020
Export Citation:
Assignee:
DENSO CORP
SOKEN INC
SOKEN INC
International Classes:
F02B77/00; G01M15/04
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita