IDLE INTAKE CONTROL DEVICE

PROBLEM TO BE SOLVED: To prevent adhesion of a combustion product to an idle intake control valve provided in an intake bypass passage, in an idle intake control device for an internal combustion engine. SOLUTION: From a fact that when a throttle valve 4 is brought into an opening angle of a specifi...

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Bibliographische Detailangaben
Hauptverfasser:	FUKUNAGA TAKASHI, AKIYAMA TADASHI, KAWABE YASUYUKI, WATANABE MASAHIKO, GOMI KOICHI, MORI KATSUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent adhesion of a combustion product to an idle intake control valve provided in an intake bypass passage, in an idle intake control device for an internal combustion engine. SOLUTION: From a fact that when a throttle valve 4 is brought into an opening angle of a specified angle (normally 45 deg.) or more, even when an opening 10 at the terminal of an intake bypass passage 5 is formed in any spot situated downstream from the throttle valve 4, a reverse flow does not occur in the passage 5, when the throttle valve 4 is brought into a specified opening angle being a limit at which a reverse flow does not occur to the interior of the intake bypass passage 5, a reverse flow is prevented from occurring by forming the opening 10 in a suitable region 14 being a position situated downstream from a rotary shaft 7, and it is blocked that a combustion product penetrates through the opening 10 in a state to flow over a reverse flow and reaches an idle intake control valve.