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

IPC: F01N3/22 ,  F01N3/28 ,  F01N3/02 ,  F01N3/04 ,  F01N3/05 ,  F01N3/10 ,  F01N3/20 ,  F01N13/00

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。

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。

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

IPC: H02P9/02 ,  H02J3/00

CPC classification number: H02P9/02 ,  H02J3/00

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.

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

IPC: H02P9/02 ,  H02J3/00

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.