Method of controlling valve timing of diesel engine

Details Method of controlling valve timing of diesel engine Method of controlling valve timing of diesel engine

F - Mech Eng,Light,Heat,Weapons

02

D

F02D 13/02 (2006.01) F02D 41/02 (2006.01) F02M 61/18 (2006.01)

Patent

CA 2658930

[PROBLEMS] A diesel engine in which problems of an injector having grouped injection holes are eliminated by valve timing control with effectiveness of such an injector held, in which exhaust gas is purified, and which has excellent combustion efficiency. [MEANS FOR SOLVING PROBLEMS] A diesel engine having an injector (1) with multiple intersection points between the axis of the injector (1) and the axes of injection holes (10a) formed in the injector (1). The diesel engine has an ECU (50) for controlling closing timing of an air intake valve (25) based on operation conditions of the engine. The ECU (50) controls the timing so that the air intake valve (25) is closed at timing before BDC (timing at which the piston is at the bottom dead center).

Le problème à résoudre dans le cadre de cette invention concerne un moteur diesel dans lequel les problèmes d'un injecteur comportant des trous d'injection groupés sont éliminés par un mécanisme de commande de synchronisation de soupapes avec l'efficacité d'un tel injecteur retenu, dans lequel le gaz d'échappement est purifié, et qui présente une excellente efficacité de combustion. La solution proposée consiste à avoir un moteur diesel comportant un injecteur (1) avec de multiples points d'intersection entre l'axe de l'injecteur (1) et les axes des trous d'injection (10a) formés dans l'injecteur (1). Le moteur diesel présente un ECU (50) destiné à commander le temps de fermeture d'une soupape d'admission d'air (25) sur la base des conditions de fonctionnement du moteur. Le ECU (50) commande la synchronisation de sorte que la soupape d'admission d'air (25) est fermée avant le PMB (moment auquel le piston se trouve au point mort bas).

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