초록 ▼

Disclosed are apparatus and methodology for reducing noise and wear in a flapper configured exhaust tip for a marine exhaust system. A metallic flapper is located at an end portion of an exhaust tip of the exhaust pipe. An elastomeric flapper assembly is provided covering the exhaust tip and include

Disclosed are apparatus and methodology for reducing noise and wear in a flapper configured exhaust tip for a marine exhaust system. A metallic flapper is located at an end portion of an exhaust tip of the exhaust pipe. An elastomeric flapper assembly is provided covering the exhaust tip and includes a lip portion configured to provide noise reduction by functioning as a stop for a tip portion of the metallic flapper. The metallic flapper is positioned such that a tip thereof contacts the elastomeric flapper assembly rather than the metallic exhaust pipe. Such contact with an elastomeric flapper assembly reduces noise previously produced by flapper contact with the hot exhaust pipe.

대표청구항 ▼

What is claimed is: 1. A flapper configuration for a marine exhaust system of the type having an exhaust pipe which has an exhaust tip with a pivot-mounted metallic flapper received therein, comprising:an elastomeric main body portion supported on such exhaust tip;an elastomeric lid portion; anda li

What is claimed is: 1. A flapper configuration for a marine exhaust system of the type having an exhaust pipe which has an exhaust tip with a pivot-mounted metallic flapper received therein, comprising:an elastomeric main body portion supported on such exhaust tip;an elastomeric lid portion; anda live hinge, joining said lid portion with said body portion such that such lid portion covers such metallic flapper, and such that such metallic flapper contacts said elastomeric lid portion during pivoting of such metallic flapper, so as to reduce wear on such metallic flapper and so as to deaden sound associated with such contact.