Minimizing the Hydrocarbon Emission of a Spark-Ignited Engine at Cold Condition and Non-Stationary Operation

Paper #:
  • 920398

Published:
  • 1992-02-01
Citation:
Schmidt, H., "Minimizing the Hydrocarbon Emission of a Spark-Ignited Engine at Cold Condition and Non-Stationary Operation," SAE Technical Paper 920398, 1992, https://doi.org/10.4271/920398.
Author(s):
Pages:
10
Abstract:
This paper presents a method that enables a significant reduction of the hydrocarbon massemission and other pollutants of the exhaust gas from the most popular type of engine used for passenger cars: The four-stroke, spark ignited piston engine.The method is based on influencing only the internal process by a sophisticated concept of motor-controlling. The optimized parameters are A/F-ratio and timing of heat release. Any further devices concerning ignition system, injection system, exhaust system or sensors are not required.The method is proven at cold condition and non-stationary operation. The tests have been carried out on a close loop controlled engine teststand that is able to simulate a realistic driving curve.The method is practicable even and specially soon after the start, and it can be optimized in combination with the threeway-catalyst.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Article
2017-03-13
Technical Paper / Journal Article
2010-10-25
Training / Education
2017-12-18