Mazda's New V-6 Gasoline Engine and Its Innovative Induction System

Mazda succeeded in the development of a new V–type 6–cylinder engine series comprising 2–liter JF naturally aspirated and turbocharged units and also a 3–liter JE naturally aspirated unit. This engine is 60–degree–banked and has 18 valves: two intake valves and one exhaust valve per cylinder. Variou...

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Published in:SAE transactions 1987-01, Vol.96, p.994-1007
Main Authors: Hatamura, Kouichi, Morishita, Kenichi, Asanomi, Kouji, Shiraishi, Hideo
Format: Article
Language:English
Subjects:
Butterfly valves
Combustion chambers
Control systems
Cylinders
Engines
Inertia
Resonance
Resonant frequencies
Superchargers
Torque
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creator Hatamura, Kouichi
Morishita, Kenichi
Asanomi, Kouji
Shiraishi, Hideo
description Mazda succeeded in the development of a new V–type 6–cylinder engine series comprising 2–liter JF naturally aspirated and turbocharged units and also a 3–liter JE naturally aspirated unit. This engine is 60–degree–banked and has 18 valves: two intake valves and one exhaust valve per cylinder. Various techniques, such as High Rigidity Cylinder Block and HLA, are adopted to upgrade quietness and smoothness. The Dynamic Charge Effects system, a combination of inertia and resonance charge effects, is modeled on the principle of two–degree–of–freedom system. The application of this principle helped develop the Induction system that is compatible with the three engine types. The turbocharger adopted on the JF engine is of a twin scroll type to considerably improve power response quality and increase torque at low speed. Triple Port Induction Control System is used to help improve fuel economy and running performance.
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source JSTOR Archival Journals and Primary Sources Collection
subjects Butterfly valves
Combustion chambers
Control systems
Cylinders
Engines
Inertia
Resonance
Resonant frequencies
Superchargers
Torque
title Mazda's New V-6 Gasoline Engine and Its Innovative Induction System
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