Patent ID: 9206726
Filing Date: 2015-12-08
Classification: F01N,F16K,F16L,Y02A,Y02T,Y10T

Abstract:
1. An apparatus, comprising: an exhaust system having multiple modes of operation, including: a second vehicle emissions control device disposed in the second exhaust flow path; at least one valve for directing exhaust gas between the first exhaust flow path and the second exhaust flow path; a first valve located downstream of the first vehicle emissions control device and upstream of the second vehicle emission control device; a second valve located downstream of the first vehicle emissions control device and downstream of the second vehicle emissions control device; a first cutout connected to the first exhaust flow path and the second exhaust flow path, the first valve being disposed in the first cutout; and a second cutout connected to the first exhaust flow path and the second exhaust flow path, the second valve being disposed in the second cutout; wherein the exhaust gas flows through the first vehicle emissions control device when the at least one valve is configured for diverting the exhaust gas through the first exhaust flow path, and the exhaust gas flows through the first vehicle emissions control device and the second vehicle emissions control device when the at least one valve is configured for diverting the exhaust gas through the second exhaust flow path, and the first valve and the second valve are placed in multiple positions to configure the exhaust system to direct exhaust gas through the first exhaust flow path and the second exhaust flow path.