Title:
油圧駆動燃料噴射装置
Document Type and Number:
Japanese Patent JP5881505
Kind Code:
B2
Abstract:
The purpose of the present invention is to shorten heat receiving time that corresponds to a shortening in fuel injection time and to make a fuel injection pressure mode after a prescribed amount of time has passed since the start of fuel injection to become an injection mode with a high rate of increase in injection pressure. Provided are the following: a first electromagnetic valve (34) that controls the opening and closing of an open-side logic valve (31) that governs the supply of operating oil to a pressurization device (6) that increases operating oil pressure through a pressurization piston (22) and transmits such pressure to a plunger (4) of a fuel injection pump (1) and of an closed-side logic valve (32) that governs the discharge of operating oil from the pressurization device (6)respectively; a second electromagnetic valve (35) that controls the opening and closing of an open-side logic valve (71) that governs the supply of operating oil to the pressurization device (6); and a controller that controls the opening and closing of the electromagnetic valves (34, 35). The controller controls the opening and closing timing of the electromagnetic valves (34, 35) and adjusts the lift of the electromagnetic valves (34, 35) so that the injection pressure of the fuel injected from the fuel injection pump (1) reaches a desired fuel injection pressure.
Inventors:
Akihito Aota
Koji Edo
Koji Edo
Application Number:
JP2012081011A
Publication Date:
March 09, 2016
Filing Date:
March 30, 2012
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F02M59/16; F02D1/02; F02M45/00; F02M59/10; F02M59/20; F02M59/30
Domestic Patent References:
| JP2004100644A | ||||
| JP201226396A | ||||
| JP58214659A | ||||
| JP2006342731A | ||||
| JP228563U |
Attorney, Agent or Firm:
Noriharu Fujita
Kunio Ueda
Kunio Ueda