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Apparatus and method for inhibiting diesel engine emission

A diesel engine and engine technology, applied in the direction of engine control, machine/engine, electrical control, etc., can solve the problems of increasing smoke and particulate emissions

Inactive Publication Date: 2012-07-04
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Late combustion prevents proper combustion of the soot produced and results in increased soot and particulate emissions from the engine

Method used

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  • Apparatus and method for inhibiting diesel engine emission
  • Apparatus and method for inhibiting diesel engine emission
  • Apparatus and method for inhibiting diesel engine emission

Examples

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Embodiment Construction

[0019] figure 2 is a flowchart of an example method of suppressing diesel engine emissions during acceleration or load increase transients utilizing the electronic fuel injection timing system discussed further herein. A diesel engine may be a medium speed, high emission engine such as those used in train locomotives or marine vessels. As previously mentioned, diesel engines often experience frequent acceleration and / or load-increasing transient conditions. Changes to engine speed and / or load conditions for such engines may be requested directly by the engine operator through throttle selection inputs defined by desired engine RPM and horsepower levels. Commands to increase engine speed and / or load may be initiated by an operator or automatically through a series of engine sensors and actuators. For example, when an operator desires to increase engine speed and / or power, an appropriate signal representing the requested increase in speed and / or power would command the fuel i...

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Abstract

Disclosed is a method for controlling the time of spraying fuel in the compressed ignition engine (10) in at least one gas tank which comprises: monitoring the parameters which represent the operating speed of the motor (10) that under control and corresponding to the baffler notch (70), and monitoring the actual operating speed parameter of the motor (10). When the controlled motor's speed exceeds the actual speed, the fuel spraying timing will be advanced so as to reduce the blow-down.

Description

technical field [0001] This invention relates generally to electronic fuel control systems for compression ignition engines and, more particularly, to a fuel injection control system for suppressing emissions from compression ignition diesel engines. Background technique [0002] Diesel engines are known to produce black smoke or emit large amounts of particulates during acceleration or at moments of increased load. One reason for this phenomenon is the late combustion associated with the combustion of the fuel injected into the compression cylinders in the engine operating modes at the moment of acceleration and load increase. [0003] The basic combustion process of a diesel engine involves the diffusion type combustion of a liquid fuel. When liquid fuel is injected into the compressed, hot cylinder air, the liquid fuel vaporizes and mixes with the surrounding air, forming a flammable mixture. This is an ongoing process that continues as fuel is injected into the cylinde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/40
Inventor 陈工贝特兰德・D・休罗伯特・D・克里尔
Owner GENERAL ELECTRIC CO