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公开(公告)号：US09416704B2
公开(公告)日：2016-08-16
申请号：US14478425
申请日：2014-09-05
申请人： KUBOTA Corporation
CPC分类号： F01N3/0253 , F01N2240/12
摘要： It is an object of the present invention to provide an exhaust gas treatment device of an engine capable of preventing matching surfaces of catalyst portions configuring a combustible gas catalyst from being thermally damaged. In the exhaust gas treatment device, combustible gas is produced by combustible gas generating catalyst, exhaust gas heated by combustion of combustible gas is supplied to an exhaust gas treatment portion, the combustible gas generating catalyst comprises an aggregate of a plurality of catalyst portions, each of the catalyst portions includes a matching surface with respect to adjacent one of the catalyst portions, a fastening ring is fitted over the combustible gas generating catalyst in which the matching surfaces of the adjacent catalyst portions are abutted against each other, and the matching surfaces of the adjacent catalyst portions are brought into tight contact with each other by a fastening force of the fastening ring.
摘要翻译： 本发明的目的是提供一种能够防止构成可燃气体催化剂的催化剂部分的匹配表面被热损坏的发动机的废气处理装置。 在废气处理装置中，通过可燃性气体发生催化剂生成可燃性气体，通过可燃性气体的燃烧而加热的废气被供给到排气处理部，该可燃性气体发生催化剂由多个催化剂部分的集合体构成， 的催化剂部分包括相对于相邻的催化剂部分的匹配表面，紧固环装配在可燃气体发生催化剂上，相邻催化剂部分的匹配表面彼此抵接，并且匹配表面 相邻的催化剂部分通过紧固环的紧固力彼此紧密接触。
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公开(公告)号：US09353666B2
公开(公告)日：2016-05-31
申请号：US14016366
申请日：2013-09-03
申请人： KUBOTA Corporation
发明人： Takashi Onishi , Hidetaka Morinaga , Yoshikazu Takemoto , Toshio Nakahira , Mitsugu Okuda , Keita Naito
CPC分类号： F01N3/2889 , F01N3/025 , F01N3/0256 , F01N3/30 , F01N3/36 , F01N13/008 , F01N2240/14 , F01N2240/20 , F01N2240/30 , F01N2490/16 , F01N2560/06
摘要： An exhaust treatment device of a diesel engine is provided in which combustible gas is burned with oxygen in exhaust, combustion heat increases a temperature of the exhaust, and heat of the exhaust can burn and remove PM accumulating in a DPF. In order to cause a heater for radiating heat at a start of generation of the combustible gas to enter a catalyst inlet portion, and fit a liquid fuel retaining member over a periphery of the heater, a guide plate is provided to a lower face of the liquid fuel retaining member so that the air-fuel mixture moving down in the liquid fuel retaining member flows along an upper face of the guide plate out to a periphery of the guide plate.
摘要翻译： 提供了一种柴油发动机的排气处理装置，其中可燃气体在排气中用氧气燃烧，燃烧热量增加了排气温度，并且排气的热量可燃烧并除去积聚在DPF中的PM。 为了在可燃气体的产生开始时产生用于放热的加热器进入催化剂入口部分，并且将液体燃料保持部件装配在加热器的周边上，则引导板被提供到 液体燃料保持构件，使得在液体燃料保持构件中向下移动的空气 - 燃料混合物沿着引导板的上表面流动到引导板的周边。
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公开(公告)号：US10323675B2
公开(公告)日：2019-06-18
申请号：US15617084
申请日：2017-06-08
申请人： KUBOTA Corporation
发明人： Hiroki Oso , Naoya Sakurai , Takumi Fukuda , Mitsugu Okuda , Wataru Iwanaga , Yusuke Suzuki , Takahiro Kajihara
摘要： A device with an adjustment bolt includes a bolt attachment wall, an adjustment bolt screwed with an internal thread hole of the bolt attachment wall, a locknut screwed with the adjustment bolt, a cover that surrounds the adjustment bolt and the locknut, and a stopper unit that prevents removal of the cover from the locknut. The stopper unit includes an inner circumference groove of the cover fitted around a C-shaped retaining ring, and an external circumference groove of the locknut fitting within the retaining ring. The external circumference groove includes a first groove portion having a large-diameter groove bottom that restricts contraction and removal of the retaining ring fitted within the inner circumference groove, and a second groove portion provided continuously for the first groove portion and having a small-diameter groove bottom that allows contraction and removal of the retaining ring fitted within the inner circumference groove.
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公开(公告)号：US11781501B2
公开(公告)日：2023-10-10
申请号：US17785528
申请日：2021-03-08
申请人： KUBOTA Corporation
发明人： Akira Tamura , Kensuke Fujita , Hiroki Oso , Yasushi Kobayashi , Shingo Matsunobu , Mitsugu Okuda
CPC分类号： F02F1/242 , F02M55/025 , F02M2200/857
摘要： To provide an engine head structure for “omission or shortening a fuel pipe that withstands a high pressure”, “simplification or omission of a support bracket for a fuel accumulator and/or a fuel injection device”, “reduction of the number of parts” by devising a fuel accumulator and a support structure therefor, and the like. An engine head structure has a support bracket for mounting a fuel accumulator including a joining portion with a fuel injection device on a cylinder head, is disposed on a side of the fuel injection device or between adjacent fuel injection devices. The support bracket includes a member having a mounting portion on which the fuel accumulator is placed and mounted, a mounting leg portion extending from the mounting portion and mounted on the cylinder head, and an aligning leg portion extending from the mounting portion for positioning the support bracket with respect to the cylinder head.
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公开(公告)号：US11378001B2
公开(公告)日：2022-07-05
申请号：US17282904
申请日：2019-09-09
申请人： KUBOTA Corporation
发明人： Hideyuki Koyama , Mitsugu Okuda , Yuji Shinohara , Mitsuru Kamiyama , Hiroki Oso
摘要： 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.
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公开(公告)号：US09200551B2
公开(公告)日：2015-12-01
申请号：US14108464
申请日：2013-12-17
申请人： KUBOTA Corporation
发明人： Mitsugu Okuda , Yoshikazu Takemoto , Takashi Onishi , Hozumi Ishida , Manabu Miyazaki , Yuichi Tamaki , Tomoya Akitomo , Katsuaki Arai
CPC分类号： F01N3/10 , F01N3/0256 , F01N3/323 , F01N3/36
摘要： An exhaust treatment apparatus for an engine including a combustible gas supplying passage; a heat releasing port opened in an upstream side in the exhaust passage from the oxidation catalyst and in a downstream side in the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat releasing port; an ignition apparatus beneath the heat releasing port, the heat of flaming combustion of combustible gas ignited by the ignition apparatus being supplied to the exhaust passage to raise the temperature of exhaust in the exhaust passage; a flame holding plate in a downstream side in the combustible gas supplying passage from the ignition apparatus, an exhaust guiding plate at the top portion of the flame holding plate, the exhaust guiding plate having an upward slope toward a downstream side in the exhaust passage.
摘要翻译： 一种用于包括可燃气体供应通道的发动机的排气处理装置; 在所述排气通路的上游侧从所述氧化催化剂和所述可燃性气体供给路径的下游侧开口的排气口，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; 在放热口下方的点火装置，由点火装置点燃的可燃气体的燃烧热量供给到排气通道，以提高排气通道中的排气温度; 来自点火装置的可燃性气体供给路径的下游侧的火焰保持板，在火焰保持板的顶部的排气引导板，排气引导板朝向排气通路的下游侧具有向上的倾斜。
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