公开(公告)号：US20140343825A1

公开(公告)日：2014-11-20

申请号：US14133974

申请日：2013-12-19

Applicant: Massachusetts Institute of Technology

Inventor： Daniel R. Cohn ,  Leslie Bromberg ,  John B. Heywood

IPC: F02D19/08

CPC classification number: F02D41/0025 ,  F02B7/00 ,  F02B17/00 ,  F02B17/005 ,  F02B47/00 ,  F02B47/04 ,  F02B51/00 ,  F02D19/08 ,  F02D19/081 ,  F02D35/027 ,  F02D41/3094 ,  F02D2041/389 ,  F02D2200/1002 ,  F02M25/00 ,  F02M25/14 ,  F02P5/045 ,  Y02T10/148

Abstract: Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency or the engine.

Abstract translation: 燃油管理系统，用于火花点火汽油机的高效运行。 注射器将诸如乙醇的抗爆剂直接注入发动机气缸。 燃料管理微处理器系统控制防爆剂的注射，以便控制爆震并使在驱动循环中使用的抗爆剂的量最小化。 抗爆剂优选为乙醇。 可以通过在气缸内以非均匀的方式注入来进一步使乙醇的使用最小化。 乙醇注入抑制爆震，从而可以使用增加涡轮增压或增压的较高的压缩比和/或发动机的小型化来提高效率或发动机。

公开(公告)号：US20140290596A1

公开(公告)日：2014-10-02

申请号：US14350994

申请日：2012-10-09

Applicant: Massachusetts Institute of Technology

Inventor： Daniel R. Cohn ,  Leslie Bromberg

IPC: F02B43/04

CPC classification number: F02B43/04 ,  C01B3/366 ,  C01B2203/1217 ,  F02D19/0655 ,  F02D19/084 ,  Y02T10/32 ,  Y02T10/36

Abstract: Reformer-enhanced alcohol engine system. The engine system includes a spark-ignited alcohol engine having a compression ratio in the range of 13-15 and includes a turbocharger or supercharger operatively connected to the engine to provide a pressure boost of at least about 2.5 times atmospheric pressure to cylinders of the engine. A source of alcohol is provided for injection into the engine. A reformer is provided including a low-temperature reforming catalyst in a heat transfer relation with exhaust gas from the engine and arranged to receive alcohol from the alcohol source for reforming the alcohol into a hydrogen-rich gas. Means are provided for injecting the hydrogen-rich gas into the engine and a knock sensor detects knock in the engine. A fuel management control unit is provided which is responsive to the knock sensor to apportion the ratio of alcohol injected into the engine to hydrogen-rich gas injected into the engine. The engine of the invention can provide a 15-25% efficiency gain in a methanol-fueled spark ignition engine relative to a diesel engine in a typical drive cycle.

Abstract translation: 改良型酒精发动机系统。 发动机系统包括具有在13-15范围内的压缩比的火花点燃酒精发动机，并且包括可操作地连接到发动机的涡轮增压器或增压器，以向发动机气缸提供至少大约2.5倍的压力升压 。 提供酒精来源注入发动机。 提供了一种重整器，其包括与来自发动机的排气的传热关系的低温重整催化剂，并且被配置成从醇源接收醇以将醇重整成富氢气体。 提供了用于将富氢气体注入发动机并且爆震传感器检测发动机爆震的装置。 提供了一种燃料管理控制单元，其响应于爆震传感器以将注入发动机的醇的比例分配给注入发动机的富氢气体。 本发明的发动机可以在典型的驱动循环中相对于柴油发动机在甲醇燃料的火花点火发动机中提供15-25％的效率增益。

公开(公告)号：US20140261345A1

公开(公告)日：2014-09-18

申请号：US14220529

申请日：2014-03-20

Applicant: Massachusetts Institute of Technology

Inventor： Leslie Bromberg ,  Daniel R. Cohn ,  John B. Heywood

IPC: F02D19/08

CPC classification number: F02D41/0025 ,  F02B17/005 ,  F02B47/04 ,  F02B51/00 ,  F02D13/0215 ,  F02D19/0636 ,  F02D19/0655 ,  F02D19/0665 ,  F02D19/0671 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/08 ,  F02D19/081 ,  F02D19/084 ,  F02D19/12 ,  F02D35/027 ,  F02D41/0007 ,  F02D41/047 ,  F02D41/3094 ,  F02D2200/0406 ,  F02D2200/1002 ,  F02M25/14 ,  F02M37/0088 ,  Y02T10/148 ,  Y02T10/36

Abstract: Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.

Abstract translation: 燃油管理系统，用于增强火花点火汽油发动机的运行。 注射器将诸如乙醇之类的抗爆剂直接注入圆筒中。 优选在进气阀关闭之后进行直接喷射。 还优选使用三元催化剂的化学计量操作来最小化排放。 此外，还优选的是，所述防爆剂的每单位燃烧能的蒸发热至少是汽油的三倍。

公开(公告)号：US20140145107A1

公开(公告)日：2014-05-29

申请号：US14084724

申请日：2013-11-20

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Leslie Bromberg ,  Daniel R. Cohn

IPC: C09K5/14 ,  B01J35/04

CPC classification number: C09K5/14 ,  B01J32/00 ,  B01J35/04 ,  C01B3/22 ,  C01B3/38 ,  C01B2203/0227 ,  C01B2203/0277 ,  C01B2203/1029 ,  C01B2203/1082 ,  F28F1/12 ,  F28F3/02 ,  F28F13/003 ,  Y02P20/52

Abstract: Heat exchanger. Metallic foam is disposed on at least one fin made of high thermal conductivity material. The metallic foam exchanges heat with a gas stream flowing therethrough.

Abstract translation: 热交换器。 金属泡沫设置在由高导热性材料制成的至少一个翅片上。 金属泡沫与流过其中的气流交换热量。

公开(公告)号：US08522746B2

公开(公告)日：2013-09-03

申请号：US13629836

申请日：2012-09-28

Applicant: Massachusetts Institute of Technology

Inventor： Daniel R. Cohn ,  John B. Heywood ,  Leslie Bromberg

IPC: F02B7/00

CPC classification number: F02D41/0025 ,  F02B7/00 ,  F02B17/00 ,  F02B17/005 ,  F02B47/00 ,  F02B47/04 ,  F02B51/00 ,  F02D19/08 ,  F02D19/081 ,  F02D35/027 ,  F02D41/3094 ,  F02D2041/389 ,  F02D2200/1002 ,  F02M25/00 ,  F02M25/14 ,  F02P5/045 ,  Y02T10/148

Abstract: Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency of the engine.

Abstract translation: 燃油管理系统，用于火花点火汽油机的高效运行。 注射器将诸如乙醇的抗爆剂直接注入发动机气缸。 燃料管理微处理器系统控制防爆剂的注射，以便控制爆震并使在驱动循环中使用的抗爆剂的量最小化。 抗爆剂优选为乙醇。 可以通过在气缸内以非均匀的方式注入来进一步使乙醇的使用最小化。 乙醇注入抑制爆震，从而可以使用增加涡轮增压或增压的较高的压缩比和/或发动机的小型化来提高发动机的效率。

公开(公告)号：US20130019839A1

公开(公告)日：2013-01-24

申请号：US13629836

申请日：2012-09-28

Applicant: Massachusetts Institute of Technology

Inventor： Daniel R. Cohn ,  John B. Heywood ,  Leslie Bromberg

IPC: F02D19/08 ,  F02B3/02

CPC classification number: F02D41/0025 ,  F02B7/00 ,  F02B17/00 ,  F02B17/005 ,  F02B47/00 ,  F02B47/04 ,  F02B51/00 ,  F02D19/08 ,  F02D19/081 ,  F02D35/027 ,  F02D41/3094 ,  F02D2041/389 ,  F02D2200/1002 ,  F02M25/00 ,  F02M25/14 ,  F02P5/045 ,  Y02T10/148

Abstract: Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased tubocharging or supercharging can be used to increase the efficiency of the engine.

Abstract translation: 燃油管理系统，用于火花点火汽油机的高效运行。 注射器将诸如乙醇的抗爆剂直接注入发动机气缸。 燃料管理微处理器系统控制防爆剂的注射，以便控制爆震并使在驱动循环中使用的抗爆剂的量最小化。 抗爆剂优选为乙醇。 可以通过在气缸内以非均匀的方式注入来进一步使乙醇的使用最小化。 乙醇注入抑制爆震，从而可以使用增加涡轮增压或增压的较高的压缩比和/或发动机的小型化来提高发动机的效率。

公开(公告)号：US11359559B2

公开(公告)日：2022-06-14

申请号：US17500322

申请日：2021-10-13

Applicant: Massachusetts Institute of Technology

Inventor： Leslie Bromberg ,  Daniel R. Cohn ,  John B. Heywood

IPC: F02D41/00 ,  F02D41/40 ,  F02D19/08 ,  F02B47/04 ,  F02B51/00 ,  F02D19/12 ,  F02D35/02 ,  F02M25/14 ,  F02M37/00 ,  F02D19/06 ,  F02B17/00 ,  F02D13/02 ,  F02D41/04 ,  F02D41/30

Abstract: Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.

公开(公告)号：US11255276B2

公开(公告)日：2022-02-22

申请号：US16753889

申请日：2018-09-24

Applicant: Massachusetts Institute Of Technology

Inventor： Daniel R. Cohn ,  Leslie Bromberg

IPC: F02D19/06 ,  B60W10/06 ,  B60W10/10 ,  B60K6/24 ,  B60K6/46 ,  B60W10/08 ,  B60W10/26 ,  B60W30/188 ,  F02B19/12 ,  F02D15/00 ,  F02D19/08 ,  F02D19/12 ,  F02D29/02 ,  F02D41/00 ,  F02M25/025 ,  F02N11/08

Abstract: Spark ignition engine operation at higher RPM so as to reduce alcohol requirements in high efficiency alcohol enhanced gasoline engines is disclosed. Control of engine upspeeding (use of a higher ratio of engine RPM to wheel RPM) so as to achieve an alcohol reduction objective while limiting any decrease in efficiency is described. High RPM alcohol enhanced gasoline engine operation in plug-in series hybrid powertrains for heavy duty trucks and other vehicles is also described.

公开(公告)号：US11168625B2

公开(公告)日：2021-11-09

申请号：US17246578

申请日：2021-04-30

Applicant: Massachusetts Institute of Technology

Inventor： Leslie Bromberg ,  Daniel R. Cohn ,  John B. Heywood

IPC: F02D41/00 ,  F02D19/08 ,  F02B47/04 ,  F02B51/00 ,  F02D19/12 ,  F02D35/02 ,  F02M25/14 ,  F02M37/00 ,  F02D19/06 ,  F02B17/00 ,  F02D13/02 ,  F02D41/04 ,  F02D41/30

Abstract: Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.

公开(公告)号：US11067012B2

公开(公告)日：2021-07-20

申请号：US17147905

申请日：2021-01-13

Applicant: Massachusetts Institute of Technology

Inventor： Leslie Bromberg ,  Daniel R. Cohn ,  John B. Heywood

IPC: F02D41/00 ,  F02D19/08 ,  F02B51/00 ,  F02D19/12 ,  F02D35/02 ,  F02M25/14 ,  F02M37/00 ,  F02D19/06 ,  F02B17/00 ,  F02D13/02 ,  F02D41/04 ,  F02D41/30 ,  F02B47/04

Abstract: Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred that stoichiometric operation with a three way catalyst be used to minimize emissions. In addition, it is also preferred that the anti-knock agents have a heat of vaporization per unit of combustion energy that is at least three times that of gasoline.