Kubota Corporation

Kentarou Kita

Tamotsu Kuno

Yuuji Takemura

Tomoya Hasegawa

Hiroki Oso

Katsushi Inoue

Yuuki Ishii

Akihiko Kai

Yusuke Komemushi

Osamu Yoshii

Wataru Miyauchi

The present invention provides a diesel engine capable of preventing a PM accumulation amount from increasing excessively. If DOC inlet exhaust gas temperature ('IEGT') does not reach a predetermined value T0, a control unit carries out air intake amount feedback control ('AIAFC'), and a target value of intake throttling is set to a predetermined air intake amount. If the DPF regenerating processing is not started even if elapsed time reaches a predetermined value t after AIAFC is started in a state where the DOC IEGT does not reach the predetermined value T0, the control unit changes AIAFC to exhaust gas temperature feedback control (&#x201c;EGTFC&#x201d;). In EGTFC, the control unit changes a target value of intake throttling to a predetermined DOC IEGT T0. If application of a load exceeding a predetermined amount is detected before the DOC IEGT reaches the predetermined value T0, the control unit returns EGTFC to AIAFC.

Diesel engine with reduced particulate material accumulation and related method

It is an object of the invention to provide a multi-cylinder diesel engine in which a thermal damage of a common rail, and a rise in fuel temperature can be suppressed. In order to achieve the object, a multi-cylinder diesel engine in which, while the extension direction of a crank shaftis set to the anteroposterior direction, a common railwhich is directed in the anteroposterior direction is placed above an intake manifold, and an engine cooling fanis placed in front of the engine is configured so that the width direction of the engine which is perpendicular to the anteroposterior direction is set to the lateral direction, an air intake portionof the intake manifoldis placed on the outer lateral side of the both lateral sides of the common rail, the outer lateral side being opposite to a head cover, and the common railis placed in a place to which engine cooling air produced by the engine cooling fanis blown.

Multi-cylinder diesel engine

Growing community of inventors

Sakai, Japan

Kentarou Kita