Waste heat supercharged engine

The invention belongs to the technical field of internal-combustion engines and provides a waste heat supercharged engine which utilizes heat of cooling water of the engine and waste heat of tail gas. A supercharging system of the engine comprises a waste heat recovery system based on the Rankine cy...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TANG YUNBANG, SUN XINYU, MAN CHANGZHONG, SUN PEIYAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ENGINE PLANTS 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 POSITIVE-DISPLACEMENT ENGINEPLANTS HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NOT OTHERWISE PROVIDED FOR STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE USE OF WASTE HEAT OF COMBUSTION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The invention belongs to the technical field of internal-combustion engines and provides a waste heat supercharged engine which utilizes heat of cooling water of the engine and waste heat of tail gas. A supercharging system of the engine comprises a waste heat recovery system based on the Rankine cycle and an air compressor. The waste heat recovery system comprises evaporators, an expansion machine, a condenser and a working medium pump. The expansion machine is connected with the air compressor through an overrun clutch, and the air compressor is connected with a crankshaft. When the engine is in the cooled state and the output power of the expansion machine is insufficient, the air compressor is driven by the crankshaft; and when the engine is in the high-load state, the output power of the expansion machine exceeds power required by the air compressor, and residual power is transmitted to the crankshaft. A turbine is omitted, the exhaust back pressure of the engine is reduced, the pumping loss is reduced,