Claims
- 1. A method of diverting flow with a valve through a first trap filter and a second trap filter, comprising:
positioning the valve in a first operative position to purify an exhaust gas with the first trap filter and to regenerate the second trap filter with the exhaust gas; and positioning the valve in a second operative position that is different than the first operative position to purify the exhaust gas with the second trap filter and to regenerate the first trap filter with the exhaust gas.
- 2. The method according to claim 1, wherein positioning the valve in the first operative position regenerates the second trap filter with a second electrical heater that ignites soot accumulated from the exhaust gas, and positioning the valve in the second operative position regenerates the first trap filter with a first electrical heater that ignites soot accumulated from the exhaust gas.
- 3. The method according to claim 1, wherein positioning the valve in the first operative position diverts the exhaust gas to regenerate the second trap filter to a recirculation chamber of the valve.
- 4. The method according to claim 3, wherein positioning the valve in the second operative position diverts the exhaust gas to regenerate the first trap filter to the recirculation chamber of the valve.
- 5. The method according to claim 1, wherein positioning the valve in the first operative position diverts exhaust gas to an exhaust gas recirculation valve.
- 6. The method according to claim 5, wherein positioning the valve in the second operative position diverts exhaust gas to the exhaust gas recirculation valve.
- 7. A method of routing exhaust gas from an engine through a single Y-valve to both an outlet and a return to the engine, the method comprising:
flowing a first portion of the exhaust gas through a recirculation section of the valve in fluid communication with the engine; and flowing a second portion of the exhaust gas through an output section of the valve in fluid communication with the outlet.
- 8. The method according to claim 7, further comprising:
flowing the first portion of the exhaust gas through a first filter to clean the first filter.
- 9. The method according to claim 8, further comprising:
flowing the second portion of the exhaust gas through a second filter to purify the exhaust gas.
- 10. The method according to claim 7, further comprising:
disposing an exhaust gas recirculation valve in fluid communication with the recirculation section of the valve and the engine.
- 11. The method according to claim 7, further comprising:
flowing the first portion of the exhaust gas through the output section of the valve in fluid communication with the outlet; and flowing the second portion of the exhaust gas through the recirculation section of the valve in fluid communication with the engine.
- 12. The method according to claim 11, further comprising:
disposing an exhaust gas recirculation valve in fluid communication with the recirculation section of the valve and the engine.
- 13. A valve for an exhaust system, comprising:
a body defining a volume and having a first inlet, a second inlet, a recirculation chamber, and an outlet chamber in fluid communication with the volume; and a flow inhibitor disposed in the volume and positionable in at least first and second operative positions, the first operative position defining flow paths from the first inlet to the outlet chamber and from the second inlet to the recirculation chamber, the second operative position defining flow paths from the second inlet to the outlet chamber and from the first inlet to the recirculation chamber.
- 14. The valve according to claim 13, wherein the flow inhibitor comprises a shaft including a void and a plate disposed in the void.
- 15. The valve according to claim 13, wherein the body further includes a first recirculation inlet defining a flow path between the first inlet and the recirculation chamber and a second recirculation inlet defining a flow path between the second inlet and the recirculation chamber, one of the first and second recirculation inlets defining a cross-sectional area that is about ½ of a cross-sectional area of one of the first and second inlets.
- 16. The valve according to claim 15, wherein the first and second inlets each comprise initial inlet portions and terminal inlet portions, the initial inlet portions extending along portion of their respective axes that are substantially parallel.
- 17. The valve according to claim 16, wherein each of the terminal inlet portions extends along portions of their respective axes that interest one another.
- 18. The valve according to claim 17, wherein the recirculation inlets extend about perpendicular to their respective terminal inlet portions.
- 19. A motor vehicle having an exhaust treatment system, comprising:
an engine that produces an exhaust gas; an exhaust gas coupling including an input and first and second outputs, the input in fluid communication with the engine to receive the exhaust gas; a first filter in fluid communication with first output of the coupling; a second filter in fluid communication with the second output of the coupling; a valve defining a volume and having a first inlet, a second inlet, a recirculation chamber, and an outlet in fluid communication with the volume, the first inlet in communication with the first filter, the second inlet in communication with the second filter, the valve positionable between at least one of (1) a first operative position to purify the exhaust gas with the first filter and to regenerate the second filter with the exhaust gas and, (2) a second operative position to regenerate the first filter with the exhaust gas and to purify the exhaust gas with the second filter.
- 20. The motor vehicle according to claim 19, further comprising:
a first electric heater for regenerating the first filter; and a second electric heater for regenerating the second filter.
- 21. The motor vehicle according to claim 19, further comprising:
a recirculation valve in fluid communication with the recirculation chamber, the recirculation valve defining a flow path to the engine.
- 22. The motor vehicle according to claim 21, wherein the recirculation valve comprises one of a pintle-type and a rotary-type valve.
- 23. The motor vehicle system according to claim 22, wherein the recirculation valve comprises a vacuum-actuated pintle-type valve.
CLAIM FOR PRIORITY
[0001] This application claims priority to U.S. provisional application No. 60/232,345 (Attorney Docket No. 00 P7886 US,) entitled EGR “Y” Valve, filed Sep. 14, 2000, the disclosure of which is incorporated herein by reference in its entirety.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60232345 |
Sep 2000 |
US |