Invention Grant
- Patent Title: Device for lowering tail pipe exhaust temperature
- Patent Title (中): 降低尾管排气温度的装置
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Application No.: US11985221Application Date: 2007-11-14
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Publication No.: US07913489B2Publication Date: 2011-03-29
- Inventor: Negin Angoshtari , Markus Schuster , Adam J. Kotrba
- Applicant: Negin Angoshtari , Markus Schuster , Adam J. Kotrba
- Applicant Address: US IL Lake Forest
- Assignee: Tenneco Automotive Operating Company, Inc.
- Current Assignee: Tenneco Automotive Operating Company, Inc.
- Current Assignee Address: US IL Lake Forest
- Agency: Wood, Phillips, Katz, Clark & Mortimer
- Main IPC: F01N1/00
- IPC: F01N1/00

Abstract:
A component for a vehicular exhaust pipe includes an upstream venturi forming portion for creating at least a partial vacuum interior to the component. A downstream diverter housing portion of the component has an inlet coupled to an outlet of the venturi portion. The diverter housing portion includes the diverter element positioned adjacent an output of the diverter housing portion for forcing axially central exhaust flow radially outward toward a wall of the diverter housing. The partial vacuum in the component device causes colder environmental ambient air to enter an inlet of the component. The diverter also creates a mixture of hot exhaust flow with the colder environmental air, resulting in a lower temperature of the exhaust gas exiting the component and substantial elimination of centrally disposed exhaust hot spots.
Public/Granted literature
- US20080110164A1 Device for lowering tail pipe exhaust temperature Public/Granted day:2008-05-15
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