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1.发明授权公开(公告)号：US09470126B2
公开(公告)日：2016-10-18
申请号：US14721694
申请日：2015-05-26
Applicant: Tecogen Inc.
Inventor： Joseph B. Gehret , Robert Panora , Ranson Roser , Jean P. Roy
IPC: F01N3/02 , F01N3/10 , F01N3/04 , F01N3/05 , F01N13/00 , F01N9/00 , F23J15/02 , F23J15/06 , F23G7/07 , F01N3/28 , F01N3/34 , F01N3/20 , F01N11/00
CPC classification number: F01N3/0205 , F01N3/04 , F01N3/05 , F01N3/101 , F01N3/103 , F01N3/106 , F01N3/2046 , F01N3/206 , F01N3/2066 , F01N3/2889 , F01N3/2892 , F01N3/34 , F01N9/00 , F01N11/002 , F01N13/009 , F01N13/0097 , F01N2240/02 , F01N2240/20 , F01N2240/36 , F01N2260/02 , F01N2270/02 , F01N2410/02 , F01N2560/021 , F01N2560/06 , F01N2610/02 , F01N2900/1404 , F01N2900/1411 , F01N2900/1616 , F23G7/07 , F23J15/02 , F23J15/06 , F23J2215/10 , F23J2219/10 , F23J2219/80 , Y02E20/12 , Y02E20/363 , Y02T10/22 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A system for reducing ammonia in exhaust gas generated from a lean burn internal combustion engine includes an oxidation catalyst, a selective reduction catalyst (SCR), a cooling unit, and a three-way catalyst. Exhaust gas generated by the engine passes through the oxidation catalyst to oxidize carbon monoxide from the exhaust gas to form carbon dioxide. Nitrous oxide (NOx) compounds in the exhaust gas are reduced in the SCR to form nitrogen and water. The exhaust gas is then cooled in a cooling unit and then passed over the three-way catalyst. The three-way catalyst causes ammonia in the cooled exhaust stream to react to form less harmful compounds, such as nitrogen and water.
Abstract translation: 用于还原由稀燃内燃机产生的废气中的氨的系统包括氧化催化剂，选择还原催化剂（SCR），冷却单元和三元催化剂。 由发动机产生的废气通过氧化催化剂，从废气中氧化一氧化碳，形成二氧化碳。 废气中的一氧化二氮（NOx）化合物在SCR中减少以形成氮和水。 然后将废气在冷却单元中冷却，然后通过三元催化剂。 三元催化剂使得冷却的排气流中的氨反应形成较少的有害化合物，例如氮气和水。
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2.发明申请公开(公告)号：US20150252700A1
公开(公告)日：2015-09-10
申请号：US14721694
申请日：2015-05-26
Applicant: Tecogen Inc.
Inventor： Joseph B. Gehret , Robert Panora , Ranson Roser , Jean P. Roy
CPC classification number: F01N3/0205 , F01N3/04 , F01N3/05 , F01N3/101 , F01N3/103 , F01N3/106 , F01N3/2046 , F01N3/206 , F01N3/2066 , F01N3/2889 , F01N3/2892 , F01N3/34 , F01N9/00 , F01N11/002 , F01N13/009 , F01N13/0097 , F01N2240/02 , F01N2240/20 , F01N2240/36 , F01N2260/02 , F01N2270/02 , F01N2410/02 , F01N2560/021 , F01N2560/06 , F01N2610/02 , F01N2900/1404 , F01N2900/1411 , F01N2900/1616 , F23G7/07 , F23J15/02 , F23J15/06 , F23J2215/10 , F23J2219/10 , F23J2219/80 , Y02E20/12 , Y02E20/363 , Y02T10/22 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A system for reducing ammonia in exhaust gas generated from a lean burn internal combustion engine includes an oxidation catalyst, a selective reduction catalyst (SCR), a cooling unit, and a three-way catalyst. Exhaust gas generated by the engine passes through the oxidation catalyst to oxidize carbon monoxide from the exhaust gas to form carbon dioxide. Nitrous oxide (NOx) compounds in the exhaust gas are reduced in the SCR to form nitrogen and water. The exhaust gas is then cooled in a cooling unit and then passed over the three-way catalyst. The three-way catalyst causes ammonia in the cooled exhaust stream to react to form less harmful compounds, such as nitrogen and water.
Abstract translation: 用于还原由稀燃内燃机产生的废气中的氨的系统包括氧化催化剂，选择还原催化剂（SCR），冷却单元和三元催化剂。 由发动机产生的废气通过氧化催化剂，从废气中氧化一氧化碳，形成二氧化碳。 废气中的一氧化二氮（NOx）化合物在SCR中减少以形成氮和水。 然后将废气在冷却单元中冷却，然后通过三元催化剂。 三元催化剂使得冷却的排气流中的氨反应形成较少的有害化合物，例如氮气和水。
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3.发明授权公开(公告)号：US09121326B2
公开(公告)日：2015-09-01
申请号：US14077607
申请日：2013-11-12
Applicant: Tecogen, Inc.
Inventor： Joseph B. Gehret , Robert A. Panora , Ranson Roser
CPC classification number: F01N3/2882 , F01N3/0205 , F01N3/04 , F01N3/05 , F01N3/101 , F01N3/2046 , F01N13/009 , F01N13/0097 , F01N2240/36 , Y02T10/22 , Y02T10/26
Abstract: An assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines, wherein the exhaust is acted upon in a first stage catalytic converter. A first portion of the first stage catalytic converter output is cooled and a second portion of the catalytic converter output is not cooled. The cooled and not cooled exhausts are united and directed to a second stage catalytic converter. Air is injected into a selected one of (1) the not cooled exhaust prior to the juncture thereof with the cooled exhaust, and (2) the combined cooled and not cooled exhausts after the juncture thereof.
Abstract translation: 一种用于还原内燃机排气中的氮氧化物，一氧化碳和碳氢化合物的装置和方法，其中排气在第一级催化转化器中作用。 第一级催化转化器输出的第一部分被冷却，催化转化器输出的第二部分不被冷却。 冷却和未冷却的排气联合并且引导到第二级催化转化器。 空气被注入到（1）未冷却的废气中与冷却的排气接合之前的所选择的一个中，以及（2）在其结合之后的组合的冷却和未冷却的废气。
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4.发明申请ASSEMBLY AND METHOD FOR REDUCING NITROGEN OXIDES, CARBON MONOXIDE AND HYDROCARBONS IN EXHAUSTS OF INTERNAL COMBUSTION ENGINES 有权用于减少内燃机废气中的氮氧化物，一氧化碳和碳氢化合物的组装和方法公开(公告)号：US20140196438A1
公开(公告)日：2014-07-17
申请号：US14077607
申请日：2013-11-12
Applicant: Tecogen, Inc.
Inventor： Joseph B. Gehret , Robert A. Panora , Ranson Roser
IPC: F01N3/28
CPC classification number: F01N3/2882 , F01N3/0205 , F01N3/04 , F01N3/05 , F01N3/101 , F01N3/2046 , F01N13/009 , F01N13/0097 , F01N2240/36 , Y02T10/22 , Y02T10/26
Abstract: An assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines, wherein the exhaust is acted upon in a first stage catalytic converter. A first portion of the first stage catalytic converter output is cooled and a second portion of the catalytic converter output is not cooled. The cooled and not cooled exhausts are united and directed to a second stage catalytic converter. Air is injected into a selected one of (1) the not cooled exhaust prior to the juncture thereof with the cooled exhaust, and (2) the combined cooled and not cooled exhausts after the juncture thereof.
Abstract translation: 一种用于还原内燃机排气中的氮氧化物，一氧化碳和碳氢化合物的装置和方法，其中排气在第一级催化转化器中作用。 第一级催化转化器输出的第一部分被冷却，催化转化器输出的第二部分不被冷却。 冷却和未冷却的排气联合并且引导到第二级催化转化器。 空气被注入到（1）未冷却的废气中与冷却的排气接合之前的所选择的一个中，以及（2）在其结合之后的组合的冷却和未冷却的废气。
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