INTAKE-AIR CONTROL DEVICE FOR ENGINE

PURPOSE:To prevent the torque of an engine from lowering on the low speed side of a set rotational speed, by performing delay control for the timing of the initiation of air-intake in the set rotational speed range, and by releasing the delay control on the lower side of the set rotational range. CO...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HITOMI MITSUO, YUZURIHA YASUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To prevent the torque of an engine from lowering on the low speed side of a set rotational speed, by performing delay control for the timing of the initiation of air-intake in the set rotational speed range, and by releasing the delay control on the lower side of the set rotational range. CONSTITUTION:A throttle valve 17 is disposed in an auxiliary intake-air passage 9a downstream of a main intake-air pipe 13. Further, a cylindrical timing valve 18 is rotatably disposed in a downstream side of an intake-air passage 19 and is connected to a crank shaft 24 through the intermediary of a spark advance mechanism 22. The timing of initiation of air intake is delayed from the the to dead center of air intake in a set rotational speed range so as to increase the rate of charge. A bypass valve 20 is opened on the lower speed side of the set rotational speed range to release delay control by the timing valve 18. With this arrangement, it is possible to prevent the torque of an engine from lowering on the lower speed side.