Kubota Corporation

Mitsuru Kamiyama

Yasushi Nakamura

Kiyoshi Hataura

Manabu Miyazaki

Osamu Takii

Mutsumi Murata

Hiroshi Mikumo

Toshinori Okajima

Hiroki Oso

Hideyuki Koyama

Mitsugu Okuda

Yuji Shinohara

Toshinori Oyajima

An electronic fuel injection type diesel engine enables reduction in engine size. The electronic fuel injection type diesel engine is provided with: a combustion chamber inside a cylinder; a fuel injection chamber inside a cylinder head; a fuel injector that injects liquid fuel into the fuel injection chamber; a fuel accumulation unit that accumulates the liquid fuel injected from the fuel injector; and an electronic control unit that controls a timing and an amount of injection of the liquid fuel.

Electronic fuel injection type diesel engine

A multi-cylinder engine wherein a direction in which a crank shaft spans is a front and rear direction and a widthwise direction of a cylinder head () perpendicular to the front and rear direction is a lateral direction, the multi-cylinder engine comprising the cylinder head () which has one lateral side to which an intake-air distributing passage wall () and has the other lateral side to which an exhaust-gas converging passage wall (), a common rail () being arranged around the cylinder head (). In this multi-cylinder engine, the common rail () is arranged immediately lateral of the intake-air distributing passage wall (), thereby positioning the intake-air distributing passage wall () between the cylinder head () and the common rail (). Preferably, an intake-air inlet pipe () is made to stand up at an upper portion of the intake-air distributing passage wall () and is provided with an intake-air flange portion (), which is positioned just above the common rail ().

Multi-cylinder engine

A multi-cylinder engine wherein a direction in which a crank shaft spans is a front and rear direction and a widthwise direction of a cylinder head () perpendicular to the front and rear direction is a lateral direction, the multi-cylinder engine comprising the cylinder head () which has one lateral side to which an intake-air distributing passage wall () is attached and has the other lateral side to which an exhaust-gas converging passage wall () is attached, an EGR cooler being interposed between an exhaust-gas converging passage and an intake-air distributing passage. In this multi-cylinder engine, the EGR cooler () spans in the front and rear direction laterally of a cylinder block () and the exhaust-gas converging passage wall () is positioned just above the EGR cooler (). Preferably, an EGR gas lead-out pipeconducted out of the EGR cooler () is arranged rearwards of an engine cooling fan () so that the engine cooling air produced by the engine cooling fan () might blow against the EGR gas lead-out pipe ().

Growing community of inventors

Sakai, Japan

Mitsuru Kamiyama