Document Type and Number:
Japanese Patent JPH0535248
Kind Code:
B2
Abstract:
PURPOSE:To aim at enhancing the charge efficiency of intake-air, by injecting water into a combustion chamber made of ceramic in a Diesel-engine, upon termination of each exhaust stroke to restrain the temperature of intake-air from increasing during each suction stroke. CONSTITUTION:During each combustion stroke, fuel injected from a fuel injection nozzle 24 is burnt in a combustion chamber defined between a ceramic head liner 6 and a ceramic piston crown 14. During termination of the next exhaust stroke, that is, just before a piston 29 reaching the top dead center thereof, water is injected into the combustion chamber from a water jet nozzle 27. Accordingly, water is jetted onto the upper surface of the piston crown 14 and the peripheral surface and lower surface of the head liner 6 so that the temperatures of the wall surfaces thereof are lowered, thereby it is possible to enhance the charge efficiency of intake-air during the next suction stroke.
Inventors:
KAWAMURA HIDEO
MATSUOKA HIROSHI
HARA SHINJI
MATSUOKA HIROSHI
HARA SHINJI
Application Number:
JP23838285A
Publication Date:
May 26, 1993
Filing Date:
October 24, 1985
Export Citation:
Assignee:
ISUZU MOTORS LTD
International Classes:
F01P9/02; F02B47/02; F02F1/40; F02F3/20; F02F7/00; F02B3/06; F02F1/24