Mitsubishi Jukogyo Kabushiki Kaisha

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Noriyasu Inenaga

Mataji Tateishi

Yuhiko Kiyota

Hiroyuki Kobayashi

Hideyuki Ishikawa

Satoru Kume

Tadao Omura

Koji Imoto

Sumio Harada

Koichi Nakanishi

An auxiliary chamber injection port providing communication between a main combustion chamber and an auxiliary combustion chamber has its axis composed of a combination of a straight line and an arc in a manner to satisfy the following relationships: .theta..sub.1 &lt;.theta..sub.2 ; 20.degree..ltoreq..theta..sub.1 .ltoreq.45.degree.; and 35.degree..ltoreq..theta..sub.2 .ltoreq.67.5.degree., if the outflow angle of the axis of said auxiliary chamber injection port at the open end at the side of said auxiliary combustion chamber is designated at .theta..sub.2 with respect to a plane normal to the center line of said auxiliary combustion chamber and if the outflow angle of the axis of said auxiliary chamber injection port at the open end at the side of said main combustion chamber with respect to a plane normal to the center line of said auxiliary combustion chamber is designated at .theta..sub.1.

Structure for combustion chamber of auxiliary chamber type internal

The nozzle is provided with a bar which may be rotated to and fixed at various angular positions. The bar has a longitudinally extensive cut away portion, providing a fuel passage. Varying the angular position changes the turning velocity of the vortex-type jet issuing from the passage. The effect of varying the shape of the fuel passage is also described. The purpose of variation is to cause fuel to be properly retained on the saucer shaped top surface of the impact block until the piston strikes the surface, causing the fuel to atomize and be uniformly dispersed to enhance complete combustion of the fuel.

Fuel injection device for an impact atomization-type diesel pile hammer

Growing community of inventors

Nagasaki, Japan

Noriyasu Inenaga