Exhaust flow spark arrestor
Inactive Publication Date: 2014-06-26
CATERPILLAR INC
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- Application Information
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Benefits of technology
The present disclosure is about a spark arrestor, which is a device used to prevent the formation of sparks in an exhaust flow. The spark arrestor has a housing with an inlet tube to receive the exhaust flow and a first baffle inside the housing to separate particles from the exhaust flow. There is also a second smaller baffle within the housing. An outlet tube is positioned centrally in relation to the baffle and has multiple perforations to receive air separated from the exhaust flow. The technical effect of this design is to provide a more effective and efficient way to prevent harmful sparks in exhaust flows.
Problems solved by technology
In some situations, combusting particles, such as carbon deposits, may build up on internal walls of the engine.
Presence of the carbon deposits and other combustion products in the exhaust flow may present a fire risk in application, such as, petroleum and chemical applications where flammability is an especial concern.
Method used
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[0008]Wherever possible the same reference numbers will be used throughout the drawings to refer to the same or the like parts. FIG. 1 is a block diagram of an exhaust system 100 associated with an engine 102, according to one embodiment of the present disclosure. In the illustrated embodiment, the engine 102 is a multi-cylinder internal combustion (IC) engine. Alternatively, the engine 102 may include a compression ignition engine, a spark ignition engine such as a natural gas engine, a gasoline engine, or any multi-cylinder reciprocating internal combustion engine known in the art.
[0009]Further, the exhaust system 100 may include an aftertreatment system (not shown). The aftertreatment system may further include an exhaust gas re-circulation (EGR) system (not shown). The EGR system is configured to decrease a content of nitrogen oxides (NOx) in an exhaust flow from the engine 102.
[0010]The exhaust system 100 may include a muffler 104. The muffler 104 is configured to reduce an amo...
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A spark arrestor is provided. The spark arrestor includes a housing and an inlet tube. The inlet tube is configured to receive an exhaust flow into the housing. A first baffle is positioned within the housing. The first baffle has a curved configuration and is placed such that a convex side of the first baffle faces the exhaust flow. A second baffle is positioned within the housing. The first baffle and the second baffle are configured to separate particles from the exhaust flow. An outlet tube is present within the housing and is positioned centrally in relation to the first baffle and the second baffle. An end of the outlet tube is configured to contact a concave side of the first baffle. Further, the outlet tube includes a plurality of perforations at the end. The perforations are configured to receive air separated from the exhaust flow into the outlet tube.
Description
TECHNICAL FIELD[0001]The present disclosure relates to an exhaust system of an engine, and more particularly to a spark arrestor for the exhaust system.BACKGROUND[0002]Particulate matter may be introduced into an exhaust flow exiting an engine due to various combustion processes taking place within the engine. In some situations, combusting particles, such as carbon deposits, may build up on internal walls of the engine. These carbon deposits may mix with the exhaust flow. Presence of the carbon deposits and other combustion products in the exhaust flow may present a fire risk in application, such as, petroleum and chemical applications where flammability is an especial concern.[0003]The exhaust system may include devices, such as, a spark arrestor, for treating the exhaust flowing therethrough so as to reduce the particulate matter present in the exhaust flow. The spark arrestor may be present at locations downstream of the engine with respect to the exhaust flow.SUMMARY OF THE DIS...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F01N13/08
CPCF01N1/08F01N3/06F01N13/08F01N2230/06
Inventor DAOUD, MOHAMED
Owner CATERPILLAR INC