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Contenido archivado el 2019-03-15

REDUCTION OF FUEL CONSUMPTION BY THERMODYNAMIC OPTIMIZATION OF THE OTTO-ENGINE

Objetivo



THIS PROJECT IS DIRECTED AT IMPROVING ON THE RESULTS ALREADY OBTAINED IN A PRECEDING STUDY, 337-78-1 EED. THE INTENTION IS TO INCREASE FURTHER THE HIGH FUEL ECONOMY AT PART LOAD OF THE "TOP" ENGINE (THERMO-DYNAMICALLY OPTIMIZED PORSCHE 924 OTTO ENGINE) IN COMPARISON WITH MODERN DIESEL ENGINES OF EQUAL DISPLACEMENT.

IN THE FIRST INSTANCE ALL INVESTIGATIONS CARRIED OUT WERE AIMED AT SHOWING TO WHAT EXTENT THE FUEL CONSUMPTION OF AN OTTO ENGINE MAY BE REDUCED BY CONVENTIONAL MEANS. BY A NUMBER OF UNCONVENTIONAL TECHNICAL MEASURES, FURTHER REDUCTIONS IN THE FUEL CONSUMPTION OF OTTO AND DIESEL ENGINES COULD BE OBTAINED.

THE RESULTS PRESENTED ON THE SPARK-IGNITION OTTO TOP 924 ENGINES SHOW THAT FUEL CONSUMPTION IS 5 TO 30 % LOWER THAN WITH THE 924 ENGINE AND THAT IT IS POSSIBLE TO OBTAIN AT PART-LOAD A FUEL CONSUMPTION AS LOW AS THAT OF A DIESEL ENGINE. IT HAS THUS BEEN SHOWN THAT BY ADAPTING THIS ENGINE BY CONVENTIONAL METHODS (COMBUSTION CHAMBER, HIGH COMPRESSION RATIO, HIGH AIR/FUEL RATIO (LEAN MIXTURES), IGNITION ADVANCE) AND BY USING AN APPROPRIATE GEAR BOX IT IS POSSIBLE TO SUBSTANTIALLY REDUCE THE FUEL CONSUMPTION OF AN OTTO ENGINE SO THAT IT EQUALS THAT OF A DIESEL ENGINE WITH THE SAME DISPLACEMENT, WHILST THE ESSENTIAL DYNAMIC QUALITIES (TORQUE) OF THE OTTO ENGINE ARE MAINTAINED.

BY A NUMBER OF UNCONVENTIONAL TECHNICAL MEASURES, FURTHER REDUCTIONS IN THE FUEL CONSUMPTION OF OTTO AND DIESEL ENGINES CAN BE OBTAINED. IN DIESEL ENGINE DEVELOPMENT, THE INTRODUCTION OF DIRECT INJECTION IS CONSIDERED TO BE HIGHLY PROMISING. REGARDING THE OTTO ENGINE, THE THERMODYNAMIC OPTIMIZATION IN CONJUNCTION WITH AN OPTIMIZED TRANSMISSION, A REDUCED ENGINE CYLINDER VOLUME AND THE INTRODUCTION OF ELECTRONIC CONTROL SYSTEMS ARE OF GREAT PROMISE.

Tema(s)

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Convocatoria de propuestas

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Régimen de financiación

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Coordinador

PORSCHE AG
Aportación de la UE
Sin datos
Dirección

7251 WEISSACH
Alemania

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Coste total
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