In-Line Flow Diverter
AssigneeTenneco Automotive Operating Company Inc.
InventorsRyan A. Floyd, John M. Lowry, Larry J. Geer
Life of this patent
Estimating the term…
Abstract
An exhaust gas treatment system for reducing emissions from an engine includes an exhaust conduit adapted to supply an exhaust stream from the engine to an exhaust treatment device. The conduit includes an aperture. An injector injects a reagent through the aperture and into the exhaust stream. A flow modifier is positioned within the exhaust conduit upstream of the injector. The flow modifier includes a diverter for increasing the velocity of the exhaust gas at a predetermined location within the conduit relative to the injected reagent.
Claims26
An exhaust gas treatment system for reducing emissions from an engine, the system comprising:
- an exhaust treatment device;
- an exhaust conduit adapted to supply an exhaust stream from the engine to the exhaust treatment device, the conduit including an aperture;
- an injector for injecting a reagent through the aperture and into the exhaust stream;
- a flow modifier positioned within the exhaust conduit proximate the injector, the flow modifier including a curved plate having a first end and a second end that are fixed to opposing sides of the exhaust conduit to suspend the curved plate within the exhaust conduit, the curved plate including a plurality of louvers that direct the exhaust stream in a direction toward or away from the injector.
An exhaust gas treatment system for reducing emissions from an engine, the system comprising:
- an exhaust treatment device;
- an exhaust conduit adapted to supply an exhaust stream from the engine to the exhaust treatment device;
- a sensor in communication with the exhaust conduit;
- a flow modifier positioned within the exhaust conduit proximate the sensor, the flow modifier including a plate having a first end and a second end that are fixed to opposing sides of the exhaust conduit to suspend the plate within the exhaust conduit, the plate including a plurality of louvers that direct the exhaust stream in non-uniform directions toward the sensor.
An exhaust gas treatment system for reducing emissions from an engine, the system comprising:
- an exhaust treatment device;
- an exhaust conduit adapted to supply an exhaust stream from the engine to the exhaust treatment device, the conduit including an aperture;
- an injector for injecting a reagent through the aperture and into the exhaust stream;
- a flow modifier positioned within the exhaust conduit proximate the injector, the flow modifier including a plurality of louvers that direct the exhaust stream in a direction toward or away from the injector.
Dependencies are inferred from the claim text.