Title:
SUBCHAMBER DIESEL ENGINE
Document Type and Number:
WIPO Patent Application WO/2020/105355
Kind Code:
A1
Abstract:
Provided is a subchamber diesel engine (1) having excellent thermal efficiency and capable of appropriately controlling the ignition timing of fuel supplied to a combustion subchamber. A subchamber diesel engine (1) according to the present invention comprises a main combustion chamber (14) and a combustion subchamber (10) communicated with each other by a communication hole (12), the diesel engine including: an electrically driven injector (20) for injecting fuel into the combustion subchamber (10) at a random timing; a fuel passage pipe (30) connected to a fuel inlet of the injector (20); a fuel pump (41) for supplying fuel to the fuel passage pipe (30); an engine operating state detecting means for detecting an engine operating state; and a control means (100), wherein the control means (100) performs a preliminary fuel injection (Fp) in the first half of an intake stroke, performs a main injection (Fm) during a compression stroke, and after the main injection (Fm), performs an ignition control injection (Fc) near a compression top dead center.
Inventors:
ASAI GO (JP)
MORITA GIN (JP)
MATSUKI KAZUYA (JP)
MORITA GIN (JP)
MATSUKI KAZUYA (JP)
Application Number:
PCT/JP2019/041623
Publication Date:
May 28, 2020
Filing Date:
October 24, 2019
Export Citation:
Assignee:
YANMAR CO LTD (JP)
International Classes:
F02B9/06; F02D41/04; F02B23/02; F02D41/38; F02D41/40
Foreign References:
| JPH03115723A | 1991-05-16 | |||
| JP2000054904A | 2000-02-22 | |||
| JP2000328974A | 2000-11-28 | |||
| JP2000328973A | 2000-11-28 | |||
| JPH09317471A | 1997-12-09 | |||
| JPH0633816A | 1994-02-08 | |||
| JPS5851232A | 1983-03-25 | |||
| JP2001193526A | 2001-07-17 | |||
| JPH09217624A | 1997-08-19 | |||
| JPH09158730A | 1997-06-17 | |||
| JPH07116941A | 1995-05-09 | |||
| JP3851727B2 | 2006-11-29 |
Other References:
See also references of EP 3885565A4
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
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