INTERNAL COMBUSTION ENGINE

To reduce pump loss in an internal combustion engine comprising a supercharger and an EGR mechanism.SOLUTION: Exhaust gas recirculation passages 56 and 64 recirculate part of exhaust gas from a cylinder to a suction passage 30. A first supercharger 58 supercharges part of the exhaust gas from the cy...

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Bibliographische Detailangaben
Hauptverfasser:	MIYAGAWA HIROSHI, YAMAMOTO SEIJI, KOIKE MAKOTO, BRIAN MICHAEL WEISS
Format:	Patent
Sprache:	eng ; jpn
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:	To reduce pump loss in an internal combustion engine comprising a supercharger and an EGR mechanism.SOLUTION: Exhaust gas recirculation passages 56 and 64 recirculate part of exhaust gas from a cylinder to a suction passage 30. A first supercharger 58 supercharges part of the exhaust gas from the cylinder in the exhaust gas recirculation passage 56. A second supercharger 74 supercharges the air in the suction passage 30. The first supercharger 58 is driven with the remaining exhaust gas from the cylinder. The second supercharger 74 is provided on the downstream side of the first supercharger 58, and is driven with the remaining exhaust gas from the cylinder used to drive the first supercharger 58.SELECTED DRAWING: Figure 1 【課題】過給器とＥＧＲ機構とを備えた内燃機関において、ポンプ損を低減する。【解決手段】排気還流通路５６，６４は、気筒からの排気の一部を吸気通路３０に還流する。第１過給器５８は、排気還流通路５６内における気筒からの排気の一部を過給する。第２過給器７４は、吸気通路３０内の空気を過給する。第１過給器５８は、気筒からの残りの排気によって駆動する。第２過給器７４は、第１過給器５８の下流側に設けられ、第１過給器５８の駆動に用いられた気筒からの残りの排気によって駆動する。【選択図】図１