초록 ▼

An aftertreatment burner for an exhaust treatment device is disclosed. The aftertreatment burner may have a mounting member, and a canister connected to the mounting member to form a combustion chamber. The aftertreatment burner may also have a fuel injector disposed within the mounting member to se

An aftertreatment burner for an exhaust treatment device is disclosed. The aftertreatment burner may have a mounting member, and a canister connected to the mounting member to form a combustion chamber. The aftertreatment burner may also have a fuel injector disposed within the mounting member to selectively inject fuel into combustion chamber, and an air supply line configured to supply air to the combustion chamber. The aftertreatment burner may further have an igniter disposed within the mounting member to ignite the fuel/air mixture, and a thermal couple configured to detect the ignition.

대표청구항 ▼

What is claimed is: 1. An aftertreatment burner, comprising: a mounting member having a bore; a canister connected to the mounting member to form a combustion chamber; a fuel injector disposed within the bore of the mounting member to selectively inject fuel into the combustion chamber, the fuel in

What is claimed is: 1. An aftertreatment burner, comprising: a mounting member having a bore; a canister connected to the mounting member to form a combustion chamber; a fuel injector disposed within the bore of the mounting member to selectively inject fuel into the combustion chamber, the fuel injector together with the mounting member forming a coolant chamber surrounding at least a portion of the fuel injector; an air supply line formed within the mounting member and configured to supply air to the combustion chamber; an igniter disposed within the mounting member and configured to ignite the fuel/air mixture; and a coolant line formed within the mounting member and in fluid communication with the coolant chamber. 2. The aftertreatment burner of claim 1, further including a mixer completely disposed within a cavity of the mounting member and configured to mix the supplied air into the injected fuel as the fuel is injected. 3. The aftertreatment burner of claim 2, wherein the mixer is located at an outlet of the fuel injector. 4. The aftertreatment burner of claim 2, wherein the mixer, together with the mounting member, substantially encloses the fuel injector. 5. The aftertreatment device of claim 2, further including an air distribution passage formed within the mounting member around the fuel injector and in fluid communication with the air supply line, the mixer forming a wall of the air distribution passage. 6. The aftertreatment burner of claim 1, further including a purge line formed within the mounting member and in selective fluid communication with a supply of purge fluid and the fuel injector. 7. The aftertreatment burner of claim 6, further including a second purge line formed within the mounting member and in selective fluid communication with the igniter. 8. The aftertreatment burner of claim 1, further including a thermal couple extending through an air/fuel mixer into the combustion chamber, the thermal couple configured to detect the ignition. 9. The aftertreatment burner of claim 1, further including a snap ring retaining the fuel injector within a bore of the mounting member from an exhaust side of the mounting member. 10. The aftertreatment burner of claim 1, further including: a main fuel passage formed within the mounting member and in fluid communication with the fuel injector; and a pilot fuel passage formed within the mounting member and in fluid communication with the fuel injector. 11. The aftertreatment burner of claim 1, wherein the mounting member is a single integral component. 12. An aftertreatment burner, comprising: a mounting member; a canister connected to the mounting member to form a combustion chamber; a fuel injector disposed within the mounting member to selectively inject fuel into combustion chamber; an air supply line formed within the mounting member and configured to supply air to the combustion chamber; an igniter disposed within the mounting member to ignite a fuel/air mixture; a mixer disposed within the mounting member to mix the supplied air into the fuel as the fuel is injected into the combustion chamber; and an air distribution passage formed within the mounting member and annularly formed about the fuel injector, the air distribution passage provided with air from the air supply line and annularly open to the mixer. 13. The aftertreatment burner of claim 12, further including: a first purge line formed within the mounting member and in selective fluid communication with the fuel injector; and a second purge line formed within the mounting member and in selective fluid communication with the spark plug. 14. The aftertreatment burner of claim 12, further including a coolant line formed within the mounting member and in fluid communication with the fuel injector. 15. The aftertreatment burner of claim 12, further including: a main fuel chamber formed by the mounting member and the fuel injector; and a pilot fuel chamber formed by the mounting member and the fuel injector, the pilot fuel chamber axially separated from the main fuel chamber. 16. The aftertreatment burner of claim 12, wherein the mounting member is a single integral component. 17. A power system, comprising: a combustion engine configured to produce a power output and a flow of exhaust; an aftertreatment device configured to treat the flow of exhaust; and an aftertreatment burner configured to raise the temperature of the aftertreatment device, the aftertreatment burner including: a mounting member; a canister connected to the mounting member to form a combustion chamber; a fuel injector disposed within the mounting member to selectively inject fuel into combustion chamber; an air supply line formed within the mounting member and configured to supply air to the combustion chamber; an air distribution passage formed within the mounting member, annularly formed about the fuel injector and being in fluid communication with the air supply line; an igniter disposed within the mounting member to ignite a fuel/air mixture; a thermal couple disposed within the mounting member and configured to detect the ignition; and a mixer disposed within the mounting member and forming a wall of the air distribution passage to mix the supplied air into the injected fuel as the fuel is injected. 18. The power system of claim 17, further including: a coolant line formed within the mounting member and in fluid communication with the fuel injector; a main fuel passage formed within the mounting member and in fluid communication with the fuel injector; a pilot fuel passage formed within the mounting member and in fluid communication with the fuel injector; a first purge line formed within the mounting member and in selective fluid communication with the main fuel passage and the pilot fuel passage; and a second purge line formed within the mounting member and in selective fluid communication with the igniter. 19. The power system of claim 17, wherein the mounting member is a single integral component. 20. The power system of claim 17, wherein a flow path from the engine through the aftertreatment device is generally straight, and the aftertreatment burner is located within a side wall of the aftertreatment device at an oblique angle to the flow of exhaust through the aftertreatment device.