公开(公告)号：US4099500A

公开(公告)日：1978-07-11

申请号：US596411

申请日：1975-07-16

申请人： Soichi Nakano ,  Yasumichi Ohama ,  Masao Watanabe

发明人： Soichi Nakano ,  Yasumichi Ohama ,  Masao Watanabe

IPC分类号： F02F1/42 ,  F01N3/10 ,  F01N3/26 ,  F02M31/08 ,  F02M31/087 ,  F02B19/10

CPC分类号： F02M31/087 ,  F01N3/26 ,  F02B2275/18 ,  Y02T10/126

摘要： A multi-cylinder internal combustion engine of the type having an auxiliary combustion chamber associated with each main combustion chamber, and connected thereto by a torch opening, is provided with an improved manifold system and exhaust reaction chamber for maintaining the exhaust gases at a relatively high temperature in order to reduce unwanted emissions discharged into the atmosphere supplied to the auxiliary combustion chambers and also for heating the lean air-fuel mixture supplied by the primary carburetor barrel to the main combustion chambers. Thin wall liners having low thermal capacity are provided for adjacent pairs of exhaust ports in the engine, each liner having a single exit opening. Exhaust collection pipes receive exhaust gases from said liners and convey them to an inner exhaust reaction chamber and then in a one-way flow through an outer reaction chamber which surrounds and encloses the inner chamber. An improved heat exchange device employs the heat of gases in the outer chamber to heat a rich air-fuel mixture supplied to the auxiliary combustion chambers and also to heat a lean air-fuel mixture supplied to the main combustion chambers.

摘要翻译： 具有与每个主燃烧室相连并通过割炬开口连接的辅助燃烧室的类型的多缸内燃机设置有改进的歧管系统和排气反应室，用于将废气维持在相对高的位置 以减少排放到辅助燃烧室供给的大气中的不必要的排放物，并且还将由第一化油器筒供应的贫空气混合物加热到主燃烧室。 为发动机中相邻的排气口对提供具有低热容量的薄壁衬套，每个衬套具有单个出口。 废气收集管从所述衬里接收废气并将其输送到内排气反应室，然后通过围绕并包围内室的外部反应室的单向流。 改进的热交换装置使用外室中的气体的热量来加热供应到辅助燃烧室的富空燃混合物，并且加热供应到主燃烧室的稀空燃混合物。

公开(公告)号：US4016846A

公开(公告)日：1977-04-12

申请号：US596469

申请日：1975-07-16

申请人： Soichi Nakano ,  Yasumichi Ohama ,  Masao Watanabe

发明人： Soichi Nakano ,  Yasumichi Ohama ,  Masao Watanabe

IPC分类号： F01N3/26 ,  F02B19/10 ,  F02M31/08 ,  F02M31/087

CPC分类号： F02B19/1028 ,  F01N3/26 ,  F02M31/087 ,  Y02T10/125 ,  Y02T10/126

摘要： A multi-cylinder internal combustion engine of the type having an auxiliary combustion chamber associated with each main combustion chamber, and connected thereto by a torch opening, is provided with a manifold system in which the exhaust gases are used to heat a rich air-fuel mixture supplied to the auxiliary combustion chambers and is also used to heat the lean air-fuel mixture supplied by the primary carburetor barrel to the main combustion chambers, but the lean air-fuel mixture supplied by the secondary carburetor barrel is not heated. The secondary carburetor barrel comes into action only when the engine is operating under heavy load, so that the unheated additional lean mixture improves the volumetric efficiency and thereby improves the power output of the engine. Thin wall liners and heat transfer plates having low thermal capacity are provided for the exhaust passages in the engine, the interior of the exhaust manifold, and the heat exchange surfaces for heating the rich mixture and that portion of the lean mixture provided by the primary carburetor barrel.

摘要翻译： 具有与每个主燃烧室相连并通过割炬开口连接的辅助燃烧室的类型的多缸内燃机设置有歧管系统，其中废气用于加热富空燃料 混合物供应到辅助燃烧室，并且还用于将由第一化油器筒供应的贫空气混合物加热到主燃烧室，但是由第二化油器筒供应的贫空气混合物不被加热。 仅当发动机在重负载下运行时，次级化油器桶才起作用，使得未加热的附加稀混合物提高了容积效率，从而提高了发动机的功率输出。 为发动机的排气通道，排气歧管的内部和用于加热富混合物的热交换表面和由主化油器提供的贫混合物的那部分提供了具有低热容量的薄壁衬套和传热板 桶。

公开(公告)号：US3994271A

公开(公告)日：1976-11-30

申请号：US542561

申请日：1975-01-20

申请人： Akira Ishizuya ,  Soichi Nakano ,  Yasumichi Ohama

发明人： Akira Ishizuya ,  Soichi Nakano ,  Yasumichi Ohama

IPC分类号： F01N3/26 ,  F02B19/10 ,  F02M31/08 ,  F02M31/087

CPC分类号： F02M31/087 ,  F02B19/1028 ,  Y02T10/125 ,  Y02T10/126

摘要： A manifold system for a multi-cylinder internal combustion piston engine has an intake manifold for supplying a lean mixture to the main combustion chambers of the engine and a rich mixture to the auxiliary combustion chambers thereof. In such an engine, each main combustion chamber is connected to its respective auxiliary combustion chamber through a torch opening. The manifold system also includes an exhaust manifold having improved means for heating the lean mixture and the rich mixture in the intake manifold, and constructed to provide a longer residence time for the exhaust gases and to promote a high mean temperature so that the chemical reaction between the excess air and carbon monoxide and unburned hydrocarbons may add additional heat, to the end that exhaust emissions to the atmosphere of carbon monoxide and unburned hydrocarbons are minimized.

摘要翻译： 用于多气缸内燃活塞发动机的歧管系统具有用于向发动机的主燃烧室供应贫混合物的进气歧管和与其辅助燃烧室的富混合物。 在这种发动机中，每个主燃烧室通过手电筒开口连接到其相应的辅助燃烧室。 歧管系统还包括具有用于加热贫混合物和进气歧管中的富混合物的改进装置的排气歧管，并且构造成为排气提供更长的停留时间并促进高的平均温度，使得化学反应 过量的空气和一氧化碳和未燃碳氢化合物可能增加额外的热量，最终使得一氧化碳和未燃烧的碳氢化合物的排放物排放最小化。

公开(公告)号：US4201168A

公开(公告)日：1980-05-06

申请号：US924626

申请日：1978-07-14

申请人： Yasumichi Ohama

发明人： Yasumichi Ohama

IPC分类号： F02M31/10 ,  F02M31/00

CPC分类号： F02M31/10 ,  Y02T10/126

摘要： An intake manifold for a multi-cylinder internal combustion engine contains a first distribution cavity and a plurality of passages for delivering a relatively lean air-fuel mixture to the main combustion chambers of the engine. This first cavity is fed from a carburetor through a main primary opening and a main secondary opening. The manifold also has a second distribution cavity and passages for delivering a relatively rich air-fuel mixture to auxiliary combustion chambers of the engine. This second cavity is fed from another carburetor through an auxiliary opening. A water jacket employs hot water from the engine cooling system to heat both of the distribution cavities, but the construction is such as to avoid heating lean air-fuel mixture introduced into the manifold through the main secondary opening. The water jacket lies below the distribution cavities. Two spaced inlets for hot water are provided at relatively high elevations and one outlet is provided at a lower elevation, to avoid formation of unwanted air pockets.

摘要翻译： 用于多气缸内燃机的进气歧管包括第一分配腔和用于将相对稀薄的空气燃料混合物输送到发动机的主燃烧室的多个通道。 该第一腔从化油器通过主主开口和主次级开口进料。 歧管还具有第二分配腔和用于将相对较浓的空气 - 燃料混合物输送到发动机的辅助燃烧室的通道。 该第二腔从另一个化油器通过辅助开口供给。 水套采用来自发动机冷却系统的热水来加热两个分配腔，但是这种结构是为了避免通过主次级开口引入歧管中的贫空气混合物。 水套位于分配腔下方。 在相对较高的高度处设置两个用于热水的间隔开的入口，并且在较低的高度处设置一个出口，以避免形成不需要的气穴。

公开(公告)号：US4099502A

公开(公告)日：1978-07-11

申请号：US709394

申请日：1976-07-28

申请人： Takao Okura ,  Eiichi Hashimoto ,  Yasumichi Ohama

发明人： Takao Okura ,  Eiichi Hashimoto ,  Yasumichi Ohama

IPC分类号： F02B23/02 ,  F02M31/08 ,  F02M31/00

CPC分类号： F02M31/08 ,  Y02T10/126

摘要： An intake manifold and an exhaust manifold, both for use with an internal combustion engine, are provided with a common wall for transmission of heat from the hot exhaust gases to the air-fuel mixture in the intake manifold. A movable baffle is provided for varying the amount of heat transfered to the air-fuel mixture, and the operation of this baffle is controlled by a first device responsive to ambient temperature outside said manifolds, and also by a second device responsive to the intensity of intake vacuum pressure. The baffle may be mounted in either manifold and may be mounted to swing or slide with respect to the stationary heat transmitting wall which separates the manifolds.

摘要翻译： 与内燃机一起使用的进气歧管和排气歧管都设置有用于将热量从热废气传递到进气歧管中的空气 - 燃料混合物的公共壁。 提供可移动挡板以改变传递到空气 - 燃料混合物的热量，并且该挡板的操作由响应于歧管外部的环境温度的第一设备以及响应于第二设备的强度来控制 进气真空压力。 挡板可以安装在任一歧管中并且可以安装成相对于分离歧管的固定传热壁摆动或滑动。