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11.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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12.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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13.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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公开(公告)号：US11936327B2
公开(公告)日：2024-03-19
申请号：US17808430
申请日：2022-06-23
Applicant: Tecogen Inc.
Inventor： Joseph Gehret , Robert A. Panora , Jian Wen
Abstract: A hybrid power-generator system includes an engine, an electric generator, first and second rectifiers, first and second DC-DC voltage converters, a DC bus, an inverter, and one or more controllers. The system provides a unique method of joining two power sources such that the relative proportion utilized can be changed to any value seamlessly, such as to avoid daily and/or seasonal variations in utility charges. Since the AC output portion of the circuit is independent of the utility grid, power can be supplied at variable frequencies to motor loads with significant positive impacts in load efficiency. Power increases required by the load(s) that occur rapidly can utilize the electrical grid to assist for the brief transient, allowing the engine, which is maintained at a fixed and wide-open-throttle position, to continue operation and in a more gradual process to resume its blend target for power generation.
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公开(公告)号：US20220416700A1
公开(公告)日：2022-12-29
申请号：US17808430
申请日：2022-06-23
Applicant: Tecogen Inc.
Inventor： Joseph Gehret , Robert A. Panora , Jian Wen
Abstract: A hybrid power-generator system includes an engine, an electric generator, first and second rectifiers, first and second DC-DC voltage converters, a DC bus, an inverter, and one or more controllers. The system provides a unique method of joining two power sources such that the relative proportion utilized can be changed to any value seamlessly, such as to avoid daily and/or seasonal variations in utility charges. Since the AC output portion of the circuit is independent of the utility grid, power can be supplied at variable frequencies to motor loads with significant positive impacts in load efficiency. Power increases required by the load(s) that occur rapidly can utilize the electrical grid to assist for the brief transient, allowing the engine, which is maintained at a fixed and wide-open-throttle position, to continue operation and in a more gradual process to resume its blend target for power generation.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20180230886A1
公开(公告)日：2018-08-16
申请号：US15892599
申请日：2018-02-09
Applicant: Tecogen, Inc.
Inventor： Ahmed F. Ghoniem , Jean Roy , Joseph Gehret
CPC classification number: F01N13/009 , B01D53/9418 , B01D53/9445 , B01D53/9454 , B01D53/9477 , B01D53/9495 , B01D53/96 , B01D2255/102 , B01D2255/904 , B01D2255/915 , F01N3/0205 , F01N3/021 , F01N3/035 , F01N3/0821 , F01N3/0835 , F01N3/10 , F01N3/32 , F01N9/00 , F01N9/002 , F01N11/007 , F01N13/08 , F01N2900/0418 , F01N2900/08 , F01N2900/10 , F01N2900/1404 , Y02A50/2322 , Y02T10/20 , Y02T10/22 , Y02T10/47
Abstract: Exhaust generated from an internal combustion engine includes particulates and gas-phase volatile hydrocarbon condensables. The exhaust is cooled in an exhaust gas cooler from a first temperature to a second temperature such that a first portion of the gas-phase volatile hydrocarbon condensables in the exhaust condense to the liquid phase and a second portion of the gas-phase volatile hydrocarbon condensables in the exhaust condense on black carbon particles to form semivolatile brown carbon particulates. Some or all of the liquid-phase volatile hydrocarbon condensables and the semivolatile brown carbon particulates are trapped in a gasoline particulate filter or a catalyzed gasoline particulate filter located downstream of the exhaust gas cooler.
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公开(公告)号：US09995195B2
公开(公告)日：2018-06-12
申请号：US15090032
申请日：2016-04-04
Applicant: Tecogen Inc.
Inventor： Jean Roy
CPC classification number: F01N3/30 , F01N3/101 , F01N9/00 , F01N11/002 , F01N13/008 , F01N13/009 , F01N13/0093 , F01N2550/02 , F01N2560/025 , F01N2560/06 , F01N2900/1404 , Y02A50/2324 , Y02T10/22 , Y02T10/47
Abstract: Systems and methods of reducing the emissions of vehicles having a spark ignited internal combustion engine are provided. When the exhaust temperature is less than a set point temperature, the oxygen concentration of the exhaust is increased as the exhaust passes from a first stage catalytic converter to a second stage catalytic converter. The increased oxygen content of the exhaust improves the removal efficiency of carbon monoxide and/or hydrocarbons at the second stage catalytic converter without (or with minimal) reforming nitrogen oxide compounds. The oxygen concentration of the exhaust is not increased when the exhaust temperature is greater than the set point temperature.
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18.发明授权公开(公告)号：US09856767B2
公开(公告)日：2018-01-02
申请号：US14947276
申请日：2015-11-20
Applicant: Tecogen, Inc.
Inventor： Jean Roy
IPC: F01N5/02 , F01N3/02 , F01N3/10 , F01N3/30 , F01N9/00 , F01N13/00 , B01D53/94 , F01N3/04 , F01N3/05 , F01N3/20 , F01N3/28
CPC classification number: F01N3/0205 , B01D53/9454 , B01D53/9477 , B01D2258/014 , F01N3/04 , F01N3/05 , F01N3/101 , F01N3/2046 , F01N3/2889 , F01N3/30 , F01N5/025 , F01N9/00 , F01N13/009 , F01N13/0097 , F01N2240/36 , Y02A50/2324 , Y02T10/16 , Y02T10/22 , Y02T10/26
Abstract: Methods and apparatus for removing undesired pollutants from exhausts streams of spark-ignited internal-combustion engines in vehicles while producing electrical energy as a byproduct. The apparatus includes a reduction catalyst, a thermoelectric generator (TEG), and an oxidation catalyst. The TEG cools the exhaust stream and generates electricity. The exhaust stream is oxygenated after passing through the TEG and prior to passing through the oxidation catalyst.
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公开(公告)号：US20170101942A1
公开(公告)日：2017-04-13
申请号：US14881557
申请日：2015-10-13
Applicant: Tecogen Inc.
Inventor： Joseph Gehret , Jean Roy , Jian Wen
CPC classification number: F02D31/001 , F02B63/04 , F02D29/06 , F02D41/0205 , F02D41/26 , F02D41/28 , F02D2041/281 , F02D2041/285 , F02D2200/101 , G05B15/02
Abstract: A system and method for controlling an internal combustion engine and electrical inverter system for powering a load, including controlling the operation of a spark-ignited internal combustion engine prime mover used in generation of electrical power by way of a generator. A microprocessor (e.g., DSP) controlled circuit taking engine speed input from an engine speed signal is used to control the operation of the internal combustion engine prime mover so that it is preferably operated substantially at wide open throttle.
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公开(公告)号：US20160279572A1
公开(公告)日：2016-09-29
申请号：US15079938
申请日：2016-03-24
Applicant: Tecogen Inc.
Inventor： Jean Roy , Robert Panora , Daniel Ott , David Wallace
IPC: B01D53/94 , B01J23/63 , B01J23/89 , B01J23/656 , B01J23/652 , B01J37/08 , B01J23/46 , B01J23/60 , B01J35/04 , B01J37/00 , B01J37/04 , B01J37/02 , B01J23/42 , B01J23/44
CPC classification number: B01D53/9477 , B01D53/944 , B01D53/945 , B01D53/9454 , B01D2255/102 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/206 , B01D2255/2065 , B01D2255/20707 , B01D2255/20715 , B01D2255/2073 , B01D2255/20738 , B01D2255/20761 , B01D2255/20769 , B01D2255/20776 , B01D2255/2092 , B01D2255/30 , B01D2255/9207 , B01J21/063 , B01J21/08 , B01J23/42 , B01J23/44 , B01J23/462 , B01J23/464 , B01J23/54 , B01J23/60 , B01J23/63 , B01J23/6525 , B01J23/6527 , B01J23/6562 , B01J23/89 , B01J23/8906 , B01J23/8926 , B01J35/04 , B01J35/1014 , B01J35/1019 , B01J37/0036 , B01J37/0215 , B01J37/0236 , B01J37/0248 , B01J37/038 , B01J37/04 , B01J37/08 , Y02A50/2324 , Y02T10/22
Abstract: A poison-resistant catalytic converter includes a washcoat having a support material comprised of titania and/or silica and a plurality of platinum group metal particles disposed in the support material. The washcoat is disposed on a substrate having a plurality of cells that define respective apertures. The catalytic converter is resistant to poisoning from sulfur and phosphorous compounds while operating at low temperatures. Applications include spark ignited internal combustion engines in combined heat and power systems, vehicles, combustion turbines, boilers and other applications for utilities, industry and vehicle emissions control.
Abstract translation: 耐毒催化转化器包括具有由二氧化钛和/或二氧化硅组成的载体材料和多个设置在载体材料中的铂族金属颗粒的修补基面涂层。 修补基面涂层设置在具有限定相应孔的多个单元的基板上。 催化转化器在低温下运行时耐硫和磷化合物中毒。 应用包括火力点火内燃机在热电联产系统，车辆，燃气轮机，锅炉和其他应用于公用事业，工业和车辆排放控制。
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