公开(公告)号：US20160108870A1

公开(公告)日：2016-04-21

申请号：US14882935

申请日：2015-10-14

Applicant: MAZDA MOTOR CORPORATION

Inventor： Fusatoshi TANAKA ,  Mikiko KOJO ,  Motoo HAYAKAWA ,  Shigehiro SAKOGAWA ,  Hitoshi HONGOU ,  Norifumi IRIE

IPC: F02M35/12 ,  F02M35/108 ,  F02M35/10

CPC classification number: F02M35/108 ,  F02B27/006 ,  F02B27/04 ,  F02M35/10072 ,  F02M35/10078 ,  Y02T10/14 ,  Y02T10/146

Abstract: An intake system of an engine includes an engine and an intake manifold. The intake manifold defines individual intake air passageways each connecting one of cylinders to a volume chamber. Each of the individual intake passageways includes a first route and a second route. The first route has a natural frequency, of an air column, synchronized with a first revolution higher than an engine revolution for maximum torque such that a dynamic supercharging effect is obtained at the first revolution. The second route has a natural frequency, of an air column, synchronized with a second revolution higher than the engine revolution for maximum torque such that a dynamic supercharging effect is obtained at the second revolution. The second revolution differs from the first revolution. A difference between the first and second revolutions is set lower than or equal to 15% of a maximum engine revolution.

Abstract translation: 发动机的进气系统包括发动机和进气歧管。 进气歧管限定各自的进气通道，每个进气通道将气缸中的一个连接到容积室。 每个单独的进气通道包括第一路线和第二路线。 第一路线具有空气柱的固有频率，与最大转矩高于发动机转速的第一次转速同步，使得在第一次旋转时获得动态增压效果。 第二路径具有空气柱的固有频率，与针对最大扭矩高于发动机转速的第二转相同步，使得在第二转时获得动态增压效果。 第二次革命与第一次革命不同。 第一转和第二转之间的差被设定为最大发动机转数的15％以下。