Kubota Corporation

Yuki Yoshita

Masayasu Takami

Kentaro Kita

Katsunori Ikemachi

Tomohiro Suzuki

Masayuki Tochimoto

Kazuya Ishida

Yu Suzuki

Masahiro Aketa

Katsushi Inoue

Satoshi Sugimoto

Tamotsu Kuno

Koichi Funaki

Masanori Fujiwara

Masato Ueda

Satoshi Shibata

Toru Suzuki

Takuya Yanagimoto

Wataru Miyauchi

Takashi Hanada

The blow-by gas treating devicehas a main structure portionwhich separates oil OL from the blow-by gas BG and an outlet portionwhich supplies gas G having been separated from the blow-by gas BG to an intake system. The main structure portionhas a first blow-by gas taking-in portion, a second blow-by gas taking-in portion, a separating portionwhich separates the blow-by gas BG into oil OL and gas G, a first oil guiding portionwhich guides the oil OL to a front side, a second oil guiding portionwhich guides the oil OL to a rear side, a first oil drainwhich discharges the oil OL into the engine, and a second oil drainwhich discharges the oil OL into the engine.

Blow-by gas treating device and engine including blow-by gas treating device

An air intake amount measurement deviceincludes an intake distributordistributing intake air CYL to cylinders, and, a temperature detectordetecting a temperature Ti of the intake air CYL, a pressure detectorfor detecting a pressure Pi of intake air CL, and a computing unitthat computes an air intake amount mfcyl of the intake air CYL on the basis of the temperature Ti transmitted from the temperature detectorand the pressure Pi transmitted from the pressure detector. The temperature detectordetects the temperature Ti of the intake air CYL at a region W spanning, out of an inside of the intake distributor, a first branch portionand a second branch portion

Air intake amount measurement device and engine

There is provided an exhaust treatment device for a diesel engine that can prevent unnecessary alarm for ash deposition from being issued. In the exhaust treatment device, a timer measures integrated time of a state of non-regenerative operation which ranges from an end of DPF regeneration to a next time point where the differential pressure reaches a regeneration request value. A counter acquires the short interval count if the integrated time is a short interval shorter than a predetermined decision time. An alarm device issues an alarm if the consecutive short interval count reaches a predetermined plural necessary count for alarm. A short interval count having been already acquired is preferably reset to 0 if the integrated time of the state of non-regenerative operation is a long interval, not shorter than a predetermined decision time, before the short interval count reaches the predetermined necessary count for alarm.

Exhaust treatment device for diesel engine

The present invention relates to an exhaust gas treatment device of a diesel engine that is capable of increasing the concentration of PM in the EGR gas, wherein an exhaust gas separatorhas electrodesandhaving different polarities from each other to allow the PM in the exhaust gasto be charged to a given polarity by means of corona discharge between the electrodesandand thus to permit a peripheral wallsurrounding the exhaust gas swirl chamberto have the electrodehaving the opposite polarity to the charged PM, and the charged PM in the exhaust gasswirling the exhaust gas swirl chamberis localizedly positioned around the peripheral wallof the exhaust gas swirl chamberthrough a centrifugal force and an electrostatic force to allow the exhaust gascontaining the localizedly positioned PM to be separated as the EGR gasand sent to a terminal end portionof the exhaust gas swirl chamber, while the exhaust gasaround the central cylinderis being separated as the emission gasand sent to the interior of the central cylinderthrough the plurality of emission gas entry holes

Exhaust gas treatment device of diesel engine

Growing community of inventors

Sakai, Japan

Yuki Yoshita