Patent ID: 6341805
Filing Date: 2002-01-29
Classification: F01N,F16L

Abstract:
An exhaust piping system for a vehicle with an internal combustion engine and an exhaust system with an emission control device, which includes:(a) an exhaust pipe connected to the engine and including an end, a bore open at the end, an inside diameter defined by said exhaust pipe bore and an outside diameter; (b) an emission pipe connected to the emission control device and including an end, a bore open at the end, an inside diameter defined by said emission pipe bore and an outside diameter; (c) said pipe ends being tapered and having reduced outside diameters which are less than said exhaust and emission pipe outside diameters respectively; (d) a flexible hose coupling including first and second ends telescopically receiving said exhaust and emission pipe ends respectively and a flexible hose coupling bore extending between said flexible hose coupling ends; (e) a sleeve having a generally cylindrical configuration with first and second ends and a sleeve bore extending between and open at said ends; (f) said sleeve bore telescopically receiving said first pipe at said sleeve first end; (g) said flexible hose coupling bore telescopically receiving said sleeve with said sleeve second end terminating in spaced relation from said second pipe end; (h) a first annular clearance formed between said sleeve bore and said reduced-diameter exhaust pipe end; (i) a second annular clearance formed between said flexible hose coupling bore and said reduced-diameter emission pipe end; (j) first and second band clamps connected to said exhaust and emission pipe ends and to said flexible hose coupling ends respectively; and (k) said sleeve first end being retained by said first connection means.