公开(公告)号：US20140290226A1

公开(公告)日：2014-10-02

申请号：US14196540

申请日：2014-03-04

Applicant: KUBOTA Corporation

Inventor： Hideyuki KOYAMA ,  Tomoya AKITOMO ,  Yuichi TAMAKI ,  Ryutaro KOMURA

IPC: F01N3/38 ,  F01N3/28

CPC classification number: F01N3/38 ,  F01N3/025 ,  F01N3/035 ,  F01N3/2033 ,  F01N13/0097 ,  F01N2240/14 ,  F01N2260/022 ,  F23G7/065 ,  F23G7/07 ,  F23Q7/06 ,  Y02T10/26

Abstract: An engine exhaust treatment apparatus, which suppresses thermal damage to an electrothermal ignition apparatus, includes: an exhaust passage; an oxidation catalyst disposed in the exhaust passage; a combustible gas generator; a combustible gas supplying passage; a heat dissipation port opened upstream in the exhaust passage from the oxidation catalyst and in a downstream part of the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat dissipation port; and an electrothermal ignition apparatus disposed in the combustible gas supplying passage. Heat of flaming combustion of the combustible gas ignited by the electrothermal ignition apparatus is supplied to the exhaust passage, to raise the temperature of exhaust in the exhaust passage. A heat dissipation plate is attached to an outer projecting portion of the electrothermal ignition apparatus. The outer projecting portion projects outside a wall of the exhaust treatment apparatus.

Abstract translation: 抑制对电热点火装置的热损伤的发动机排气处理装置包括：排气通路; 设置在排气通道中的氧化催化剂; 可燃气体发生器; 可燃气体供应通道; 从所述氧化催化剂和所述可燃性气体供给路径的下游侧向所述排气通路的上游侧开口的散热口，所述排气通路和所述可燃性气体供给路径通过所述散热口相互连通; 以及设置在所述可燃性气体供给路径中的电热点火装置。 由电热点火装置点燃的可燃气体的燃烧燃烧的热量被供给到排气通道，以提高排气通道中的排气温度。 散热板附接到电热点火装置的外部突出部分。 外突出部突出到废气处理装置的壁的外侧。

公开(公告)号：US20210199074A1

公开(公告)日：2021-07-01

申请号：US17096928

申请日：2020-11-12

Applicant: KUBOTA Corporation

Inventor： Kentaro NAGAI ,  Ryutaro KOMURA ,  Takashi YAMAGUCHI ,  Kumiko SAKAGUCHI ,  Takahiro YAMAZAKI

IPC: F02M26/05 ,  F02M26/43

Abstract: An engine exhaust manifold including exhaust inlet parts at four locations corresponding to a plurality of exhaust ports, one exhaust outlet part, and an exhaust confluence part to collect exhaust gas from each of the exhaust inlet parts and send to the exhaust outlet part. An EGR passage part to send EGR gas toward an intake passage is formed.