Exhaust system with scavenging venturi
Patent 5768891 Issued on June 23, 1998. Estimated Expiration Date: 
September 16, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 16, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3453824 3470690 3491534 3507301 Exhaust tuning for transverse automobile engine Tubular exhaust manifold Exhaust gas control means for engine High efficiency transition element positioned intermediate multi-cylinder exhaust system and secondary pipe assemblies Method of making a collector device Header assembly for internal combustion engine and method Patent #: 5216883 InventorApplicationNo. 713120 filed on 09/16/1996US Classes:60/313, Correlated exhausts from plural cylinders60/323Common receiver having inlets from plural cylinder (i.e., exhaust manifold)ExaminersPrimary: McMahon, MargueriteAttorney, Agent or FirmInternational ClassF01N 007/10AbstractA collector system for exhausts that uses a junction to merge the an engine's primary tubes in a linear arrangement. Thus, all exhaust gas passes cleanly through the unit with no interference or creating any hot spots than can fail. To help remove exhaust gas from the junction portion of the collector, a venturi pipe is installed in the system. This venturi acts to scavenge the junction pipe of any remaining exhaust before the next impulse come through the system. Finally, to eliminate the complex welding of the primary tubes and to guarantee a seal, a tube sheet is used. This tube sheet accepts each of the primary tubes. Each pipe is then welded to the tube sheet, which then fits over the end of the collector junction. The tube sheet is then welded to the junction and the system is sealed. | |
