Heat shield for an exhaust system of an internal combustion engine
AssigneeVan-Rob Stampings Inc.
InventorKornel Farkas
Life of this patent
Estimating the term…
Abstract
The present invention provides a heat shield for an exhaust system of an internal combustion engine. The shield comprises three metal layers shaped to conform generally to the shape of a high temperature portion of said exhaust system; said metal layers having substantially the same shape and extending in face-to-face adjacency with one layer positioned between the other two layers; all three metal layers being substantially identical.
Claims15
In combination, an exhaust system of an internal combustion engine and a rigid, non-corrugated heat shield for an exhaust system of an internal combustion engine, comprising three metal layers having substantially the same shape and extending in face-to-face adjacency with one layer positioned between the other two layers, said shield being spaced away from an exhaust manifold of the exhaust system by an air gap, the improvement comprising:
- said three metal layers being formed from three substantially identical metal sheets;
- each of said three metal layers having a three-dimensional shape which is substantially identical and conforms generally to the shape of the exhaust manifold;
- and
- each of said three metal layers is formed to the three-dimensional shape by deep drawing the three metal layers while sandwiched together to a ratio of depth to thickness of from about 5:1 to about 100:1.
Dependencies are inferred from the claim text.