PASSAGE CONTROL DEVICE OF HELICAL SUCTION PORT

PURPOSE:To prevent the wasteful consumption of fuel by controlling the closing valve in a branch path connecting between the inlet passage section and volute end section of said helical suction port in response to the amount of the intake air volume and then by closing the valve when a speed change...

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Bibliographic Details
Main Authors KATOU KENJI, MATSUSHITA SOUICHI, KOGA ITSUO, INOUE TOKUTA, YAMADA TOSHIO
Format Patent
LanguageEnglish
Published 19.02.1983
Subjects
ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
BLASTING
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
CONTROLLING COMBUSTION ENGINES
CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:PURPOSE:To prevent the wasteful consumption of fuel by controlling the closing valve in a branch path connecting between the inlet passage section and volute end section of said helical suction port in response to the amount of the intake air volume and then by closing the valve when a speed change gear is put in a neutral position. CONSTITUTION:The inlet passage section A of a helical suction port 6 and the volute section B end section formed around a suction valve connected to the inlet passage section A are connected to each other by a branch path 14, which is opened or closed by a rotary valve 18. An electronic control unit 50 controls an atmosphere connection control valve 36, which control a negative pressure diaphragm unit 30, which in turn controls the opening and closing of the rotary valve 18. Said unit 50 controls the valve 18 to open when the intake air volume exceeds the predetermined amount, and it is formed so as to close said valve 18 forcibly when it is detected by a neutral switch 60 that a speed change gear is put in a neutral position.
Bibliography:Application Number: JP19810116453