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81. 发明授权

US4719879A Intake manifold 失效
标题翻译：进气歧管
公开(公告)号：US4719879A
公开(公告)日：1988-01-19
申请号：US790032
申请日：1985-10-22
申请人： Seiji Kato , Masayuki Kumada
发明人： Seiji Kato , Masayuki Kumada
IPC分类号： F02M35/10 , F02B75/18
CPC分类号： F02M35/112 , F02M35/10052 , F02M35/10072 , F02M35/10118 , F02M35/10124 , F02M35/10216 , F02M35/1085 , F02M35/10327 , F02M35/10347
摘要： An intake manifold for multicylinder, in-line type engine wherein a distribution chamber extends along the engine and a separate intake pipe extends from the distribution chamber to each intake port for each engine cylinder. When the engine has an oval intake port, usually because of two intake valves, with the major axis extending the length of the engine, the intake pipes have matching oval openings. The connection between each intake pipe and the distribution chamber is oval in shape but oriented with the major axis extending laterally to reduce the length of the distribution chamber. The walls of the manifold vary in thickness for reducing weight and the moment of inertia by progressively decreasing the wall thickness in the direction away from the engine.
摘要翻译：用于多缸，直列式发动机的进气歧管，其中分配室沿着发动机延伸，并且单独的进气管从分配室延伸到每个发动机气缸的每个进气口。当发动机具有椭圆形进气口时，通常由于两个进气门，主轴延伸发动机的长度，所以进气管具有匹配的椭圆形开口。每个进气管和分配室之间的连接形状为椭圆形，但是以长轴线横向方向定向以减小分配室的长度。歧管的墙壁的厚度变化，通过逐渐减小远离发动机的方向的壁厚来减轻重量和惯性矩。

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