Title:
FUEL INJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/159816
Kind Code:
A1
Abstract:
In this fuel injection device according to an aspect of the present invention, a fuel injection valve is provided in a marine diesel engine. A fuel injection pump pumps fuel to the fuel injection valve through piping. A first water injection system injects water at a predetermined position in a fuel circulation path extending from the fuel injection pump to an injection port of the fuel injection valve. A second water injection system injects water at a position which, in the fuel circulation path, is upstream of the first water injection system with respect to the fuel circulation direction. The control unit controls the respective water injection start timings of the first water injection system and the second water injection system according to engine load so that the water injection period of the first water injection system and the water injection period of the second water injection system overlap at least partially. The fuel injection valve injects the fuel, pumped by the fuel injection pump, the water, injected by the first water injection system, and the water, injected by the second water injection system, in a layered form from the injection port into a combustion chamber inside the cylinder.
Inventors:
MATSUDA CHIKARA (JP)
AOTA AKIHITO (JP)
MIYANAGI AKIHIRO (JP)
KAKIMOTO TAI (JP)
AOTA AKIHITO (JP)
MIYANAGI AKIHIRO (JP)
KAKIMOTO TAI (JP)
Application Number:
PCT/JP2019/004476
Publication Date:
August 22, 2019
Filing Date:
February 07, 2019
Export Citation:
Assignee:
JAPAN ENGINE CORP (JP)
International Classes:
F02D19/12; F02B47/02; F02M25/025; F02M43/00
Foreign References:
| JP2015102049A | 2015-06-04 | |||
| JPH06257530A | 1994-09-13 | |||
| JPH05288129A | 1993-11-02 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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