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：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：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：US3964460A

公开(公告)日：1976-06-22

申请号：US417261

申请日：1973-11-19

申请人： Soichi Nakano ,  Yoshitoku Iizuka ,  Masao Watanabe

发明人： Soichi Nakano ,  Yoshitoku Iizuka ,  Masao Watanabe

IPC分类号： F02B19/12 ,  F02M31/08 ,  F02B19/10

CPC分类号： F02M31/08 ,  F02B19/12 ,  Y02T10/125 ,  Y02T10/126 ,  Y10S123/04

摘要： An internal combustion piston engine has one or more cylinders each having a main combustion chamber and an auxiliary combustion chamber connected by a torch nozzle. Exhaust gases from the main chamber are used to heat the intake mixture for the auxiliary combustion chamber. Contiguous thin wall pipes, one carrying hot exhaust gases and one carrying a rich mixture for the auxiliary chamber, are both enclosed within a thick wall outer housing. A riser for the auxiliary intake pipe is also enclosed within said housing. The thin wall exhaust pipes join an exhaust chamber secured to the thick wall housing at a central location to minimize deformations caused by thermal expansion.

摘要翻译： 内燃活塞发动机具有一个或多个气缸，每个气缸都具有通过喷枪喷嘴连接的主燃烧室和辅助燃烧室。 来自主室的废气用于加热用于辅助燃烧室的进气混合物。 相邻的薄壁管道，一个携带热废气和一个携带用于辅助室的富混合物的薄壁管道都封闭在厚壁外壳体内。 用于辅助进气管的提升管也封闭在所述壳体内。 薄壁排气管连接在中心位置处固定到厚壁壳体的排气室，以最小化由热膨胀引起的变形。

公开(公告)号：US3931799A

公开(公告)日：1976-01-13

申请号：US372747

申请日：1973-06-22

申请人： Hisashi Tamai ,  Soichi Nakano

发明人： Hisashi Tamai ,  Soichi Nakano

IPC分类号： F01N13/08 ,  F02B1/04 ,  F02B19/10 ,  F02F1/42 ,  F02M31/08 ,  F02M31/087 ,  F02B19/16

CPC分类号： F02M31/087 ,  F02B19/1028 ,  F02B1/04 ,  Y02T10/125 ,  Y02T10/126

摘要： An intake and exhaust pipe construction for an internal combustion engine of the type having a main combustion chamber supplied with a lean mixture and an auxiliary combustion chamber supplied with a rich mixture. A spark plug ignites the rich mixture in the auxiliary chamber and the resulting torch flame passes through a torch nozzle to ignite the lean mixture in the main chamber. The auxiliary intake passage which supplies the auxiliary combustion chamber with the rich air fuel mixture is integrally formed with the exhaust passage such that a common wall extends there between. A shell is disposed about the intake and exhaust passages and spaced therefrom to form an air gap between the shell and passages. Openings are provided in the shell for allowing air flow to and from the air gap. The air flowing from the gap is directed by a conduit to the inlet opening of the intake system.

摘要翻译： 一种用于内燃机的进气和排气管结构，该内燃机具有供应有稀混合物的主燃烧室和供应有浓混合物的辅助燃烧室。 火花塞点燃辅助室中的富混合物，所产生的火炬火焰通过炬喷嘴以点燃主室中的稀混合物。 向辅助燃烧室供给浓空燃料混合物的辅助进气通道与排气通道一体地形成，使得公共壁在其间延伸。 壳体围绕进气和排气通道设置并与其间隔开，以在壳体和通道之间形成气隙。 开口设置在壳体中，用于允许空气流入和流出气隙。 从间隙流出的空气由导管引导到进气系统的入口。

公开(公告)号：US3994270A

公开(公告)日：1976-11-30

申请号：US557513

申请日：1975-03-12

申请人： Soichi Nakano ,  Akira Ishizuya

发明人： Soichi Nakano ,  Akira Ishizuya

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

CPC分类号： F01N3/26 ,  F02B19/1014 ,  F02B19/1028 ,  F02M31/087 ,  Y02T10/125 ,  Y02T10/126

摘要： An intake and exhaust system for an internal combustion engine of the type having an auxiliary combustion chamber associated with each main combustion chamber, and wherein the overall air-fuel charge to all combustion chambers is leaner than the stoichiometric ratio, so that excess air is present in the exhaust gases. The system includes integrated intake manifolds, one for connection with the main combustion chamber and the other for connection with the auxiliary combustion chamber, and an exhaust manifold for connection with the main combustion chambers. The exhaust manifold includes a stainless steel liner enveloped within and spaced from a metal casting in order to retain the heat of the exhaust gases so that the exhaust gas temperature remains at or above the temperature at which the unburned hydrocarbons in the exhaust gases will continue to burn. This temperature also promotes oxidation of carbon monoxide to carbon dioxide. The intake manifold is in thermal association with the exhaust manifold to provide a transfer of heat from the exhaust manifold to the intake manifold so that a rich mixture for the auxiliary combustion chambers and a lean mixture for the main combustion chambers are both heated in a controlled ratio. An integral heat riser member is positioned between the exhaust manifold and the intake manifold for transferring heat therebetween. The liner has a collection chamber with a baffle located therein to direct the flow of exhaust gases to insure proper heat transfer to the riser member. Another main feature of the system is to present a minimum heat capacity in association with the exhausting gases to allow the overall system to quickly achieve preferred operating conditions.

摘要翻译： 一种用于内燃机的进气和排气系统，其具有与每个主燃烧室相关联的辅助燃烧室，并且其中对所有燃烧室的总体空气燃料装料比化学计量比稀薄，使得存在过量的空气 在废气中。 该系统包括集成进气歧管，一个用于与主燃烧室连接，另一个用于与辅助燃烧室连接，以及用于与主燃烧室连接的排气歧管。 排气歧管包括被包围在金属铸件内并与金属铸件间隔开的不锈钢衬套，以便保持废气的热量，使得废气温度保持在等于或高于废气中未燃烧的碳氢化合物将继续的温度 烧伤。 该温度也促进一氧化碳氧化成二氧化碳。 进气歧管与排气歧管处于热关联以提供从排气歧管向进气歧管的转移，使得用于辅助燃烧室的富混合物和用于主燃烧室的贫混合物都被加热到受控的 比。 一体式的加热器构件位于排气歧管和进气歧管之间，用于在它们之间传递热量。 衬套具有收集室，该收集室具有位于其中的挡板以引导废气流以确保适当的热传递到提升管构件。 该系统的另一个主要特征是提供与排出气体相关联的最小热容量，以允许整个系统快速实现优选的操作条件。

公开(公告)号：US4077373A

公开(公告)日：1978-03-07

申请号：US531313

申请日：1974-12-10

申请人： Soichi Nakano ,  Yohji Ishii ,  Tetsuo Sekiya ,  Akira Fujimura

发明人： Soichi Nakano ,  Yohji Ishii ,  Tetsuo Sekiya ,  Akira Fujimura

IPC分类号： H04M3/42 ,  F02D35/00 ,  F02P5/10 ,  H04M3/64 ,  H04Q3/555 ,  F02P5/04

CPC分类号： F02P5/106 ,  F02P5/103

摘要： A spark-advance mechanism for an internal combustion engine is operated by vacuum pressure in the engine intake manifold. A conduit connecting the spark-advance mechanism to the intake manifold includes a solenoid operated valve which is normally open, and which is closed by either of two switches connected in parallel. One of the switches is closed when the engine temperature is low, and the other is closed when the engine RPM is high. When the solenoid valve is energized by either or both switches to close the conduit, atmospheric air is bled through an orifice to cause slow advance of the spark timing.

摘要翻译： 用于内燃机的火花提前机构通过发动机进气歧管中的真空压力来操作。 将火花提前机构连接到进气歧管的导管包括一个常开的电磁阀，并且由并联连接的两个开关中的任一个关闭。 当发动机温度低时，其中一个开关闭合，另一个在发动机转速高时关闭。 当电磁阀由一个或两个开关通电以关闭导管时，大气通过孔排出，导致火花正时的缓慢提前。