Intake system of engine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9920722
SERIAL NO

14882935

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

  • MAZDA MOTOR CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayakawa, Motoo Kure, JP 3 44
Hongou, Hitoshi Hiroshima, JP 1 0
Irie, Norifumi Higashihiroshima, JP 1 0
Kojo, Mikiko Hiroshima, JP 2 6
Sakogawa, Shigehiro Hiroshima, JP 1 0
Tanaka, Fusatoshi Higashihiroshima, JP 20 159

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