Patent ID: 7506667
Filing Date: 2009-03-24
Classification: F01N,F16L

Abstract:
1. A flexible exhaust stack for a vehicle having a cab movably mounted to a frame and exhaust system components fixedly mounted to the frame so that relative motion occurs between the cab and the frame-mounted exhaust system components, the flexible exhaust stack comprising: (a) a pipe having an inlet end and a discharge end, the pipe being mountable to the cab; (b) a collar secured to an interior portion of the pipe between the inlet end and the discharge end; (c) a flexible hose at least partially disposed within the pipe, a discharge end of the flexible hose being secured to the collar and disposed in fluid communication with the discharge end of the pipe, an inlet end of the flexible hose being capable of receiving exhaust gases discharged from the exhaust system, wherein the flexible hose allows for relative motion between the cab and the exhaust system; and (d) a heat shield at least partially surrounding the pipe.