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公开(公告)号：US10598601B2
公开(公告)日：2020-03-24
申请号：US16087461
申请日：2017-03-06
发明人： Yoshinori Fukui , Ryota Kobayashi , Tetsuya Yokoyama , Tsuyoshi Inoue , Yusuke Oda , Michiyasu Okada , Kozo Akao , Ryouichi Higashi
IPC分类号： G01N21/85 , G01N21/15 , G01N21/3504 , G01N21/03
摘要： A gas concentration measuring device including a light emitter and a light receiver which are disposed so as to be opposed to each other with a hollow tube-like measurement pipe interposed therebetween. The device is configured to measure concentration of target gas passing through the measurement pipe using light applied from the light emitter, transmitted through the inside of the measurement pipe, and received by the light receiver. Purge gas guide pipes through which purge gas is introduced into optical systems of the light emitter and the light receiver are connected to a side wall of the measurement pipe. The measurement pipe includes a gas entrance portion having a tapered shape widening from a gas supply port toward a downstream side thereof.
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公开(公告)号：US09732652B2
公开(公告)日：2017-08-15
申请号：US15028336
申请日：2014-10-07
申请人： YANMAR CO., LTD.
CPC分类号： F01N3/2066 , B01F3/04021 , B01F5/0451 , B01F5/0616 , B01F2005/0637 , F01N3/2892 , F01N13/087 , F01N2240/20 , F01N2240/36 , F01N2410/00 , F01N2590/02 , F01N2610/02 , F01N2610/1453 , F01N2900/12 , F02D2200/701 , Y02T10/24
摘要： An exhaust-gas purification device includes an injection nozzle provided inside an exhaust pipe and a catalyst reactor provided on a downstream side of the injection nozzle, and is configured to inject urea water from the urea water injection nozzle into exhaust gas and to reduce nitrogen oxide in the exhaust gas by a NOx catalyst contained in the catalyst reactor, where the injection nozzle is disposed to inject the urea water toward the downstream side of the flow direction of the exhaust gas, and a mixer is connected to an upstream end of the catalyst reactor, the mixer having a plurality of plate members radially disposed around the axial center of the exhaust pipe, the plate members each being formed in such a way that angles of plate surfaces of the plate member to the flow direction are different values on the upstream side and the downstream side.
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公开(公告)号：US10518217B2
公开(公告)日：2019-12-31
申请号：US16087514
申请日：2016-08-23
申请人： Yanmar Co., Ltd
发明人： Tetsuya Yokoyama , Arata Hayata , Ryota Kobayashi
摘要： A catalytic reactor including: catalytic cassettes each including a catalyst part configured to reduce NOx in exhaust gas and an outer peripheral part made of a frame covering side surfaces of the catalyst part; and a lattice frame on which the catalytic cassettes are placed. The lattice frame includes a plurality of inflow holes through which exhaust gas flows into the catalyst parts and a plurality of frame parts which defines the respective plurality of inflow holes. The outer peripheral part of each of the catalytic cassettes is positioned so that the outer peripheral part is accommodated in a respective one of the frame parts.
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公开(公告)号：US10443469B2
公开(公告)日：2019-10-15
申请号：US15031056
申请日：2014-10-22
申请人： YANMAR CO., LTD.
摘要： An exhaust gas purification system includes, as an exhaust gas path of an engine to be mounted in a ship, a main path which is in communication with outside, a bypass path which branches off from a halfway portion of the main path, and a combined casing with which both the main path and the bypass path are in communication. A selective catalyst reduction device is accommodated in the combined casing at a location close to the main path. A path-switching member which switches exhaust gas moving direction is placed in a branched portion between the main path and the bypass path. A reducing agent injection body is placed in the main path between the path-switching member and the combined casing.
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公开(公告)号：US10253681B2
公开(公告)日：2019-04-09
申请号：US15031035
申请日：2014-10-22
申请人： YANMAR CO., LTD.
IPC分类号： F02B33/44 , F02B29/04 , F02B33/00 , F02B37/00 , F02B37/013 , F02B67/10 , F02M35/10 , F02M26/08 , F02M26/09 , F02M26/32
摘要： An engine device which can simplify a supply air cooling structure of an engine as well as simplifying a support structure of a first supercharger and a second supercharger. In an engine device in which the first supercharger and the second supercharger are arranged in series in an exhaust gas discharge channel of the engine, the first supercharger and the second supercharger are arranged in one side surface of the engine, the second supercharger is arranged so as to be close to the one side surface of the engine, and the first supercharger is arranged so as to be away from the one side surface of the engine.
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公开(公告)号：US09731246B2
公开(公告)日：2017-08-15
申请号：US14433965
申请日：2013-10-03
申请人： YANMAR CO., LTD.
发明人： Tetsuya Yokoyama , Tsuyoshi Inoue
CPC分类号： B01D53/9431 , B01D53/9495 , F01N3/106 , F01N3/2053 , F01N3/2066 , F01N3/2093 , F01N13/0097 , F01N13/087 , F01N2390/00 , F01N2410/00 , F01N2570/18 , F01N2590/02 , F01N2610/02 , F01N2610/06 , F01N2610/146 , Y02T10/24
摘要： In an exhaust gas purification apparatus provided in an exhaust as path of an engine, it is an object of the present invention to shorten a pipe length of a bypass path bypassing a purification catalyst as short as possible, thereby reducing initial costs. The exhaust gas purification apparatus includes a purification casing in which at least the purification catalyst is accommodated. The purification catalyst purifies exhaust gas from the engine. The purification casing is integrally provided with the bypass path separately from the purification path in which the purification catalyst exists. The bypass path makes the exhaust gas bypasses the purification catalyst without passing through the purification catalyst.
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公开(公告)号：US20150258495A1
公开(公告)日：2015-09-17
申请号：US14433965
申请日：2013-10-03
申请人： YANMAR CO., LTD.
发明人： Tetsuya Yokoyama , Tsuyoshi Inoue
IPC分类号： B01D53/94
CPC分类号： B01D53/9431 , B01D53/9495 , F01N3/106 , F01N3/2053 , F01N3/2066 , F01N3/2093 , F01N13/0097 , F01N13/087 , F01N2390/00 , F01N2410/00 , F01N2570/18 , F01N2590/02 , F01N2610/02 , F01N2610/06 , F01N2610/146 , Y02T10/24
摘要： In an exhaust gas purification apparatus provided in an exhaust as path of an engine, it is an object of the present invention to shorten a pipe length of a bypass path bypassing a purification catalyst as short as possible, thereby reducing initial costs. The exhaust gas purification apparatus includes a purification casing in which at least the purification catalyst is accommodated. The purification catalyst purifies exhaust gas from the engine. The purification casing is integrally provided with the bypass path separately from the purification path in which the purification catalyst exists. The bypass path makes the exhaust gas bypasses the purification catalyst without passing through the purification catalyst.
摘要翻译： 在作为发动机路径设置的排气净化装置中，本发明的一个目的是缩短旁通通路的旁通路径的管道长度，尽可能地缩短净化催化剂，从而降低初始成本。 排气净化装置包括至少净化催化剂被容纳的净化壳体。 净化催化剂净化发动机的废气。 净化壳体与净化催化剂存在的净化路径分开地一体地设置有旁通路径。 旁通路径使废气在不通过净化催化剂的情况下绕过净化催化剂。
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公开(公告)号：US10895188B2
公开(公告)日：2021-01-19
申请号：US16480290
申请日：2017-11-22
申请人： Yanmar Co., Ltd.
发明人： Ryota Kobayashi , Shunji Hamaoka , Tsuyoshi Inoue , Tetsuya Yokoyama , Yoshinori Fukui , Seita Akimoto , Kenya Onishi , Kazuki Hirai
摘要： An exhaust gas purifier including a casing, SCR catalysts (comprising a first SCR catalyst and a second SCR catalyst), a first backflow prevention plate, and a second backflow prevention plate. In the casing, at least a part of the catalyst passage and at least a part of the bypass passage are formed. The SCR catalysts are disposed in the catalyst passage and selectively reduce NOx included in an exhaust gas flowing in the catalyst passage. The first backflow prevention plate prevents or reduces a backflow of an exhaust gas from a second exhaust passage to the catalyst passage.
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公开(公告)号：US10605144B2
公开(公告)日：2020-03-31
申请号：US15768443
申请日：2016-05-27
申请人： Yanmar Co., Ltd.
IPC分类号： F01N3/28 , F01N3/20 , B01D53/94 , B63H21/34 , F01N3/031 , F01N3/08 , F01N3/10 , F01N3/18 , F01N3/24 , F01N13/00
摘要： An exhaust gas purification device for a ship including: a main path communicated with outside and a bypass path branching off from a midway portion of the main path, each of the paths serving as an exhaust gas path of an engine to be mounted in the ship. A partition plate, by which the main and bypass paths are partitioned from the upstream side to the downstream side in an exhaust gas traveling direction, extends along the exhaust gas traveling direction. The partition plate has a downstream end extended through between an exhaust gas outflow port of the purification casing and an exhaust gas outlet of the main path, and the downstream end is formed with an opening to serve as a reverse-flow prevention plate.
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公开(公告)号：US10413874B2
公开(公告)日：2019-09-17
申请号：US15764516
申请日：2016-06-17
申请人： Yanmar Co., Ltd.
摘要： An exhaust gas purification device including: a spray nozzle provided in an exhaust pipe of an engine; a mixer provided downstream of the spray nozzle in a flow direction of exhaust gas; and a catalyst reactor provided downstream of the mixer. The exhaust gas purification device is configured to spray a reducing agent from the urea water spray nozzle to the exhaust gas from the engine, to mix the reducing agent with the exhaust gas in the mixer, and to reduce nitrogen oxides in the exhaust gas using the catalyst reactor. The mixer includes a cylindrical body and a plurality of fins arranged in the cylindrical body radially outward with respect to the axis of the cylindrical body. The upstream portion of each fin is shaped to provide a cutoff portion.
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