Title:
Intake device for engine
Document Type and Number:
Japanese Patent JP6102884
Kind Code:
B2
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.
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| JPS5749021 | TURBO SUPERCHARGER IN INTERNAL COMBUSTION ENGINE |
Inventors:
Fusato Tanaka
Mikiko Furushiro
Motoo Hayakawa
Shigehiro Sakogawa
Hitoshi Hongo
Irie Ritsubun
Mikiko Furushiro
Motoo Hayakawa
Shigehiro Sakogawa
Hitoshi Hongo
Irie Ritsubun
Application Number:
JP2014211668A
Publication Date:
March 29, 2017
Filing Date:
October 16, 2014
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B27/00; F02M35/10; F02M35/104
Domestic Patent References:
| JP2010014079A | ||||
| JP3182623A | ||||
| JP63156458U | ||||
| JP2003120447A | ||||
| JP2007032361A |
Foreign References:
| US20030106516 | ||||
| US5526789 |
Attorney, Agent or Firm:
Maeda patent office