公开(公告)号：US20220228077A1

公开(公告)日：2022-07-21

申请号：US17577172

申请日：2022-01-17

Applicant: Honda Motor Co., Ltd.

Inventor： Takuma Arai ,  Kohtaro Hashimoto ,  Katsuya Matsuura ,  Kohei Kuzuoka

IPC: C10L1/06 ,  C10L10/10

Abstract: A production method of spark-ignition engine fuel, configured to produce fuel for a spark-ignition engine, includes: mixing a light naphtha with a cyclopentane.

公开(公告)号：US11536228B2

公开(公告)日：2022-12-27

申请号：US17577180

申请日：2022-01-17

Applicant: Honda Motor Co., Ltd.

Inventor： Kohtaro Hashimoto ,  Tomohide Kudo

IPC: F02M27/02 ,  F02D41/40 ,  B01J31/02 ,  C10L1/12

Abstract: Fuel reform apparatus includes: internal combustion engine including injector and configured so that compression-ignition combustion is carried out in combustion chamber; reform unit interposed in fuel supply path from fuel tank to injector and including reformer reforming fuel stored in fuel tank by oxidation reaction; and controller including CPU and memory. Controller performs: estimating progress level of oxidation reaction in reformer; and controlling operation of reform unit based on progress level of oxidation reaction estimated.

公开(公告)号：US20220235729A1

公开(公告)日：2022-07-28

申请号：US17577176

申请日：2022-01-17

Applicant: Honda Motor Co., Ltd.

Inventor： Kohtaro Hashimoto ,  Tomohide Kudo

IPC: F02M33/00 ,  F02M37/00 ,  F02D33/00 ,  B01J8/02 ,  B01J8/00

Abstract: Fuel reform apparatus includes: internal combustion engine including injector and configured so that compression-ignition combustion is carried out in combustion chamber; reform unit interposed in fuel supply path from fuel tank to injector and including reformer reforming fuel stored in fuel tank by oxidation reaction; ignition timing detector detecting ignition timing of fuel in combustion chamber; and controller including CPU and memory. Controller performs: determining whether fuel has been supplied into fuel tank; determining whether reforming is needed based on ignition timing when it is determined that fuel has been supplied; controlling operation of reform unit so as to reform fuel stored in fuel tank to supply to injector when it is determined that reforming is needed; and controlling operation of reform unit so as to supply fuel stored in fuel tank to injector without reforming when it is determined that reforming is not needed.

公开(公告)号：US09932916B2

公开(公告)日：2018-04-03

申请号：US14897884

申请日：2015-01-30

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takashi Kondo ,  Hiroshi Hanabusa ,  Kohtaro Hashimoto

IPC: F02D37/02 ,  F02P5/15 ,  F01N3/10 ,  F02D41/02 ,  F02D41/14 ,  F02D41/30 ,  F02D41/40 ,  F02P3/045 ,  F02P5/04 ,  F02P15/10 ,  F02D41/00 ,  F01N13/00

CPC classification number: F02D37/02 ,  F01N3/101 ,  F01N13/008 ,  F01N2560/025 ,  F02D41/0002 ,  F02D41/0255 ,  F02D41/1456 ,  F02D41/1461 ,  F02D41/3041 ,  F02D41/402 ,  F02D2200/0802 ,  F02P3/0453 ,  F02P5/045 ,  F02P5/15 ,  F02P5/1506 ,  F02P15/10 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/46

Abstract: A combustion control apparatus for an internal combustion engine includes a spark plug for performing spark ignition of an air-fuel mixture in the combustion chamber, a plurality of coil pairs for generating spark discharge in the spark plug, and a fuel injection valve capable of injecting atomized fuel. Atomized fuel is injected into the intake passage, and a homogeneous lean air-fuel mixture is formed in the combustion chamber. The air-fuel ratio of the air-fuel mixture in the combustion chamber is controlled to be leaner than a predetermined lean air-fuel ratio. A spark discharge start timing and a spark discharge continuation time period are controlled using the plurality of coil pairs. The spark discharge start timing is set to a timing advanced from the spark discharge start timing for igniting a stratified lean mixture, such that the air-fuel ratio in the vicinity of the spark plug is relatively small.

公开(公告)号：US09273661B2

公开(公告)日：2016-03-01

申请号：US14027418

申请日：2013-09-16

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takashi Kondo ,  Hiroshi Sono ,  Kohtaro Hashimoto ,  Hiroshi Hanabusa

IPC: F02P5/14 ,  F02D41/00 ,  F02P5/15 ,  F02P15/08 ,  F02M31/04 ,  F02B1/12

CPC classification number: F02P5/14 ,  F02B1/12 ,  F02D41/0057 ,  F02D2250/36 ,  F02M31/042 ,  F02P5/1502 ,  F02P15/08 ,  Y02T10/126 ,  Y02T10/46 ,  Y02T10/47

Abstract: A combustion control device for an engine capable of operation over a wide range and in which the NOx discharged amount is small is provided, as well as a combustion method for a homogeneous lean air/fuel mixture. The combustion method for a homogeneous lean air/fuel mixture of the present invention forms a homogeneous lean air/fuel mixture inside of the cylinder of the engine, and then causes this homogeneous lean air/fuel mixture to combust by way of spark ignition. A temperature at which a steep rise in a laminar burning velocity occurs when changing a cylinder temperature under a pressure condition corresponding to compression top dead center is defined as an inflection-point temperature. With the combustion method of the present invention, the cylinder temperature at compression top dead center inside of the cylinder is raised to higher than the inflection-point temperature upon combusting the homogeneous lean air/fuel mixture.

Abstract translation: 提供一种用于能够在宽范围内操作并且NOx排出量小的发动机的燃烧控制装置，以及用于均匀的稀薄空气/燃料混合物的燃烧方法。 本发明的均匀稀薄空气/燃料混合物的燃烧方法在发动机气缸内形成均匀的稀薄空气/燃料混合物，然后使该均匀的稀薄空气/燃料混合物通过火花点火燃烧。 在对应于压缩上止点的压力条件下改变气缸温度时，出现层流燃烧速度急剧上升的温度被定义为拐点温度。 利用本发明的燃烧方法，将气缸压缩上止点的气缸温度升高到高于燃烧均匀的稀薄空气/燃料混合物时的拐点温度。