scispace - formally typeset
Search or ask a question
Topic

Secondary air injection

About: Secondary air injection is a research topic. Over the lifetime, 11452 publications have been published within this topic receiving 112147 citations.


Papers
More filters
Patent
01 Nov 2002
TL;DR: In this paper, a method for controlling torque in an internal combustion engine to cause an increase in temperature in an exhaust aftertreatment device is disclosed, by operating the groups of cylinders at different operating conditions, the desired temperature in one of the exhaust after treatment devices can be achieved while also providing driver demanded torque.
Abstract: A method for controlling torque in an internal combustion engine to cause an increase in temperature in an exhaust aftertreatment device is disclosed. One group cylinders feed exhaust gases to one exhaust aftertreatment device and another group of cylinders feed exhaust gases to another exhaust aftertreatment device. By operating the groups of cylinders at different operating conditions, the desired temperature in one of the exhaust aftertreatment devices can be achieved while also providing driver demanded torque.

43 citations

Proceedings ArticleDOI
01 Feb 1981
TL;DR: In this paper, the authors present the development status of direct injection diesel engines for passenger cars and present a description of the essential features of the injection and combustion system, reference is made to the performance and exhaust emissions potential of direct-injection diesel engines in the light of legal requirements of both European Community countries and the U.S.A.
Abstract: The paper presents the current development status of direct injection diesel engines for passenger cars. Besides a description of the essential features of the injection and combustion system, reference is made to the performance and exhaust emissions potential of direct injection diesel engines in the light of legal requirements of both European Community countries and the U.S.A. combustion noise and noise control are also discussed.

43 citations

Patent
03 Mar 1980
TL;DR: In this article, a system for filtering combustible particulate matter from an exhaust gas stream, and for periodically rejuvenating the filter by thermally incinerating retained particles prior to their reaching the main filter is presented.
Abstract: A system for filtering combustible particulate matter from an exhaust gas stream, and for periodically rejuvenating the filter by thermally incinerating retained particles prior to their reaching the main filter. At least a part of the exhaust gas stream which enters the filter bed is periodically heated in a pretreating chamber. The latter comprises a catalyst coated oxidizing bed into which fuel, and heated air are metered to initiate combustion. The products of said combustion are thereafter combined with the exhaust gas to bring it to a sufficient temperature to incinerate the carried particles.

42 citations

Patent
Ono Tomoyuki1, Oda Tomihisa1
08 Jan 2001
TL;DR: In this paper, a device for purifying the exhaust gas of an internal combustion engine is described, which consists of a particulate trap disposed in the engine exhaust system, an exhaust gas recirculation passage communicating the upstream of the particulate trapped by the trap with the engine intake system, and a control valve for controlling the amount of exhaust gas reirculated through a recirculated passage to be an optimum amount according to an engine operating condition.
Abstract: A device for purifying the exhaust gas of an internal combustion engine is disclosed The device comprises a particulate trap disposed in the engine exhaust system, an exhaust gas recirculation passage communicating the upstream of the particulate trap in the engine exhaust system with the engine intake system, a control valve for controlling the amount of exhaust gas recirculated through the exhaust gas recirculation passage to be an optimum amount in accordance with an engine operating condition In the device, an amount of the fresh air introduced into the engine intake system during a fuel-cut is detected, and an amount of particulate trapped by the particulate trap is estimated on the basis of the amount of fresh air detected after the control valve is opened to a predetermined opening degree

42 citations


Network Information
Related Topics (5)
Internal combustion engine
130.5K papers, 1M citations
76% related
Combustion
172.3K papers, 1.9M citations
76% related
Laminar flow
56K papers, 1.2M citations
72% related
Coal
93.3K papers, 1M citations
71% related
Heat exchanger
184.2K papers, 1M citations
71% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202327
202277
202160
2020146
2019173
2018159