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Substance dispenser for treating exhaust gas and method

a substance dispenser and exhaust gas technology, applied in the direction of engines, mechanical equipment, machines/engines, etc., can solve the problems of insufficient availability of urea-based infrastructure and very limited exten

Inactive Publication Date: 2008-11-27
INT ENGINE INTPROP CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a reservoir that can hold a solution and a canister that can hold pellets. The canister is placed on top of the reservoir and has a permeable portion that allows the solution to flow through the pellets and dissolve them. This results in the creation of the desired additive solution. The technical effect of this invention is a more efficient and effective way to create and use additive solutions.

Problems solved by technology

Currently, an infrastructure for urea availability is unavailable, or available to a very limited extent.

Method used

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  • Substance dispenser for treating exhaust gas and method
  • Substance dispenser for treating exhaust gas and method
  • Substance dispenser for treating exhaust gas and method

Examples

Experimental program
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Embodiment Construction

[0011]The following describes an apparatus for and method of providing an easily replenishable supply of an additive for use with exhaust gas after-treatment components on a vehicle with an internal combustion engine. A block diagram of a system for storing and dispensing an additive for treating exhaust gas in a vehicle 100 is shown in FIG. 1. The vehicle 100 includes an engine 102 operably associated therewith. The engine 102 admits air through an air inlet passage 104, and fuel, through a fuel inlet passage 106, during operation. Fuel in the fuel inlet passage 106 is pushed into the engine 102 by a fuel pump 108, as is known. The fuel pump 108 is associated with a fuel tank 110 that is mounted onto the vehicle 100 and that contains a replenishable supply of liquid fuel. Unused fuel returns to the fuel tank 110 from the engine 102 via a fuel return passage 112.

[0012]At times when the engine 102 operates, fuel from the fuel supply passage 106 is mixed with air from the air inlet pa...

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PUM

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Abstract

A reservoir (120) for storing an additive solution includes a reservoir volume (128) formed internally to the reservoir (120). The reservoir volume (128) is arranged to sealably store the additive solution. An inlet passage (122) is in fluid communication with the reservoir volume (128). A canister (140) is disposed on the reservoir (120). The canister (120, 300) includes a cup portion (308) that forms an internal volume having a permeable portion (314), and a head portion (316) connected to the cup portion (308). A plurality of pellets (310) is disposed in the internal volume of the cup portion (308) of the canister, such that a fluid (306) contained in the reservoir volume (304) is in fluid communication with the plurality of pellets (310) through the permeable portion (308) of the canister.

Description

FIELD OF THE INVENTION[0001]This invention relates to internal combustion engines, including but not limited to substance dispensers for procuring and dispensing substances used to treat exhaust gas generated by an internal combustion engine.BACKGROUND OF THE INVENTION[0002]Internal combustion engines generate exhaust gases during operation. These exhaust gases are typically treated and purified using various known methods. One known method of treating engine exhaust gas is by use of additives or chemical compounds that are introduced into an exhaust gas stream, downstream of an engine and upstream of an exhaust gas treating device, such as an oxidation catalyst or a particulate filter. One known chemical substance that may be used to activate the oxidation catalyst, or to lower the regeneration temperature of a particulate filter, is a solution of urea, water, and monohydric or polyhydric alcohol.[0003]In a vehicle having a urea solution dispensing device, a separate tank containin...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F01N3/10
CPCF01N3/2066F01N2260/04F01N2560/021F01N2560/08F01N2610/02F01N2610/12F01N2610/14F01N2610/1406Y02T10/24Y02T10/12Y02A50/20
Inventor HILL, JOSEPH D.PELLICO, CHRISTOPHER J.
Owner INT ENGINE INTPROP CO LLC