ENGINE WITH TURBOSUPERCHARGER

• Main Authors: YAMAGATA NAOYUKI, ARAKI KEIJI
• Format: Patent
• Language: English; Japanese
• Published: 07.12.2017
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES 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; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To provide an engine with a turbosupercharger capable of securing a power generation amount while suppressing the excessive deterioration of fuel consumption performance.SOLUTION: In the engine with a turbosupercharger, there are provided a turbosupercharger 60 including a supercharging turbine 64 formed as a variable displacement turbine, and a power generation device 70 including a power generation turbine 74 provided in an exhaust passage side by side with the supercharging turbine 64 in the vertical direction and a power generator 72 to be rotationally driven by the power generation turbine 74 to generate electric power. In a specified region R1 where an engine speed is not lower than a first speed N1, out of a high-load region A1, the opening of a variable vane 64c is set larger than the minimum opening so that an exhaust pressure is lower than a supercharging pressure. In a specified region R, power generation is carried out by the generator 72 if there is a power generation request, while in the other region, the power generation is stopped or executed depending on conditions.SELECTED DRAWING: Figure 9 【課題】燃費性能の過剰な悪化を抑制しながら発電量を確保することのできるターボ過給機付エンジンを提供する。【解決手段】可変容量タービンからなる過給用タービン６４を含むターボ過給機６０と、排気通路に過給用タービン６４と上下流方向に並ぶように設けられた発電用タービン７４および発電用タービン７４により回転駆動されて発電する発電機７２を含む発電装置７０とを設け、高負荷領域Ａ１のうちエンジン回転数が第１回転数Ｎ１以上の特定領域Ｒ１では、排気圧力が過給圧よりも低くなるように可変ベーン６４ｃの開度を最小開度よりも大きくし、特定領域Ｒでは発電要求があれば発電機７２に発電させる一方、他の領域では、条件に応じて発電を停止または実行する。【選択図】図９