Advanced Direct Injection Combustion Engine Technologies and - download pdf or read online

By H. Zhao

ISBN-10: 1439802084

ISBN-13: 9781439802083

Direct injection allows detailed regulate of the fuel/air combination in order that engines could be tuned for more desirable strength and gasoline economic system. This needs to be balanced opposed to elevated gear expenses and emissions, featuring ongoing examine demanding situations in enhancing the know-how for advertisement purposes. this significant publication stories the technological know-how and know-how of other kinds of DI combustion engines and their fuels. 5 major sections supply an outline of the cutting-edge, masking gas DI engines; either light-duty and heavy-duty DI diesel engines; substitute fuels and aftertreatment units; and complex modeling and experimental ideas.

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Extra resources for Advanced Direct Injection Combustion Engine Technologies and Development: Gasoline and Gas Engines, Volume 1

Example text

The number of injector holes therefore significantly influences the operating characteristics of the engine. A hole pattern that results in effective fuel distribution and constant flame spread between the various injection jets produces the best engine operating characteristics. The lean-burn capability of the engine can be improved by increasing the number of nozzle holes and also by reducing the individual flow areas. However, the number of holes is currently limited due to an increasing tendency towards coking.

Two close-coupled three-way catalytic converters ensure that the light-off temperature during cold starts is quickly attained throughout the exhaust gas system, which has a double-flow configuration throughout. The downstream NOx storage converters are mounted on the underbody to protect them against excessively high temperatures. They have an active temperature window of 250–500°C. To enable precise regulation of the NOx catalytic 40 Advanced direct injection CET and development converters, a temperature sensor is installed upstream of the converter and a NOx sensor is installed downstream of each converter.

Schlerfer J. , New generation multi-hole fuel injector for direct injection SI engines – optimisation of spray characteristics by means of adapted injector layout and multiple injection, SAE Paper 2007-01-1404, 2007. Ueda K. , Idling stop system coupled with quick start features of gasoline direct injection, SAE Paper 2001-01-0545, 2001. Overview of gasoline direct injection engines 19 Wirth M. , A cost optimised spray guided direct injection system for improved fuel economy, IMechE Fuel Economy and Engine Downsizing Seminar, 2004.

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Advanced Direct Injection Combustion Engine Technologies and Development: Gasoline and Gas Engines, Volume 1 by H. Zhao


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