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：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。