Based on this information, the engine ECU calcu- lates the injection volume correction that is appropriate for the fuel temperature. With the rotation of the inner rotor, the feed pump draws fuel from its suction port and pumps it out through the discharge port. The feed pump is driven by the drive shaft. Multi Point Fuel Injection (MPFI)ĭue to the spring force, Plunger B is pulled in the opposite direction to Plunger A. The engine drives the supply pump at a ratio of The eccentric cam is connected to the ring cam. The two plungers are positioned vertically on the outer ring cam for compactness. Table of Contents Because the engine ECU controls the injection system injection pressure, injection rate, and injection timingthe injection system is independent, and thus unaffected by the engine speed or load. This book may not be reproduced or copied, in whole or in part, without the written permission of the publisher. Related Manuals for Denso 4D56 No related manuals.
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