System and method for warming exhaust device of engine exhaust system

An engine system and engine technology, applied in the direction of exhaust devices, engine components, combustion engines, etc., can solve the problems of high exhaust temperature, difficult to achieve, low exhaust temperature, etc., and achieve the effect of reducing emissions

Pending Publication Date: 2021-08-24
FORD GLOBAL TECH LLC
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aftertreatment devices may be heated via exhaust; however, at lighter engine loads and lower engine speeds, exhaust temperatures may be lower than desired due at least in part to lean burn within diesel

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for warming exhaust device of engine exhaust system
  • System and method for warming exhaust device of engine exhaust system
  • System and method for warming exhaust device of engine exhaust system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0012] This specification relates to a diesel engine including an exhaust aftertreatment device. Engine can be Figure 1 to 2B The type shown in. Engine can be Figure 3 with Figure 4 The operation shown in the sequence. Figure 1 to 2B Engine can be based on Figure 5 with Figure 6 Method Operation to increase exhaust temperature and reduce engine fuel consumption.

[0013] refer to Figure 1 , Internal combustion engine 10 (including multiple cylinders, Figure 1 One of the cylinders is shown in the electronic engine controller 12. Controller 12 from Figure 1 Various sensors receive signals and adopted Figure 1 Various actuators adjust the engine operation with instructions based on the received signal and instructions stored on the memory of the controller.

[0014] The engine 10 includes a combustion chamber 30 and a cylinder wall 32, wherein the piston 36 is positioned in the cylinder wall and is coupled to the crankshaft 40. The cylinder head 13 is tightened to the engine cylinder...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a system and a method for warming an exhaust device of an engine exhaust system. Methods and systems for increasing exhaust gas temperatures of an engine are described. In one example, engine exhaust gas temperatures may be increased via deactivating cylinders and flowing exhaust gases through deactivated cylinder. Engine pumping losses may be reduced via the exhaust gases that flow through the deactivated cylinder so as to reduce engine fuel consumption while heating an exhaust gas after treatment device.

Description

technical field [0001] The present disclosure generally relates to engine exhaust systems. Background technique [0002] Diesel engines may include exhaust aftertreatment devices for treating exhaust from the engine. The aftertreatment device may operate at a desired efficiency when the temperature of the aftertreatment device is greater than a threshold temperature (eg, catalyst light-off temperature). Aftertreatment devices may be heated via exhaust; however, at lighter engine loads and lower engine speeds, exhaust temperatures may be lower than desired due at least in part to lean burn within diesel engines. It may be desirable to increase exhaust temperature at low engine loads, but higher exhaust temperatures may be difficult to achieve without significantly increasing engine fuel consumption. Accordingly, it may be desirable to provide a way to warm an exhaust aftertreatment device in a manner that does not significantly increase fuel consumption of the engine. Con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F02D13/02F02D41/00F02D41/02F02D41/38
CPCF02D13/02F02D41/0087F02D41/0002F02D41/0245F02D41/38F02D2041/389F01L13/0005F01L2013/001F01L2013/111F01L2201/00F01L2800/02F01N2430/02F01N3/103F01N3/2066F01N3/021F01N2560/026F02D13/06F02D13/0226F02D41/0007F02D2041/001F02D2041/0012F02D9/08F01N3/2006
Inventor 埃里克·马修·库尔茨贾森·布莱恩·马茨
Owner FORD GLOBAL TECH LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap