PROBLEM TO BE SOLVED: To allow fine operation control of an engine even under such an operation condition that scavenging pressure decreases.SOLUTION: An engine exhaust control system includes: an engine 30 having an exhaust valve 40; a supercharger 32 for changing operation timing of the exhaust valve 40 and supplying compressed air to the engine 30; and an air-supply bypass pipe 14, a scavenging bypass pipe 16 and an exhaust bypass pipe 18 for bypassing and taking out at least one of the compressed air and an exhaust gas from the engine 30 as a taken-out gas. The engine exhaust control system controls operation timing of the exhaust valve 40 in accordance with the taken-out gas to be taken-out.SELECTED DRAWING: Figure 3
【課題】掃気圧が低下するような運転条件下においてもエンジンの運転制御をきめ細く行うことを可能とする。【解決手段】排気弁40を有したエンジン30と、排気弁40の作動タイミングを変更し、エンジン30に加圧空気を供給する過給機32と、加圧空気及びエンジン30からの排気の少なくとも一方をバイパスして取出気体として取り出す給気バイパス管14、掃気バイパス管16、排気バイパス管18と、を備え、取り出す取出気体に応じて排気弁40の作動タイミングを制御する。【選択図】図3
ENGINE EXHAUST CONTROL SYSTEM AND VESSEL MOUNTED WITH THE SAME
エンジンの排気制御システム及びそれを搭載した船舶
2018-11-08
Patent
Electronic Resource
Japanese
IPC: | F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung |
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