Heat and vibration mounting isolator for a heat shield, heat shield assembly and method of construction thereof

Abstract

An isolator for damping heat and vibrations between a heat shield and heat source is provided. The isolator includes a housing and a washer. The housing surrounds a center opening and extends axially from a first end portion to a second end portion and includes an intermediate portion therebetween. The housing has a serpentine shape. The first end portion and the intermediate portion of the housing clamp a washer therebetween, and the second end portion and the intermediate portion of the housing clamp the heat shield therebetween. The washer includes a plurality of through openings between an outer periphery and the center opening for enhancing vibration dampening and minimizing heat transfer from the heat source to the heat shield. The isolator optionally includes a collar member disposed along the center opening of the washer to facilitate mounting of the isolator to the heat source.

1 . A method of manufacturing an isolator for damping heat and vibrations between a heat shield and heat source, the method comprising the step of:
 providing a washer extending radially from an outer periphery to a center opening, the washer including a plurality of through openings between the outer periphery and the center opening for enhancing vibration dampening and minimizing heat transfer from the heat source to the heat shield;   providing a housing surrounding a center opening, the housing extending from a first end portion to a second end portion and including an intermediate portion therebetween;   bending the housing so that the first end portion extends radially inwardly;   disposing the outer periphery of the washer between the first end portion and the intermediate portion of the housing; and   bending the housing so that the second end portion extends radially outwardly to form an annular pocket between the second end portion and the intermediate portion, the second annular pocket facing away from the center opening for receiving the heat shield.   
     
     
         2 . A method of manufacturing a heat shield assembly, comprising the steps of:
 providing a washer extending radially from an outer periphery to a center opening for receiving a fastener to connect the heat shield assembly to the heat source, the washer including a plurality of through openings between the outer periphery and the center opening for enhancing vibration dampening and minimizing heat transfer from the heat source to the heat shield;   providing a housing surrounding a center opening, the housing extending from a first end portion to a second end portion and including an intermediate portion therebetween;   bending the housing so that the first end portion extends radially inwardly;   disposing the outer periphery of the washer between the first end portion and the intermediate portion of the housing;   bending the housing so that the second end portion extends radially outwardly; and   disposing an inner periphery of a heat shield between the second end portion and the intermediate portion of the housing.   
     
     
         3 . An isolator for damping heat and vibrations between a heat shield and heat source, the isolator comprising:
 a housing surrounding a center opening, said housing extending axially from a first end portion to a second end portion and including an intermediate portion therebetween;   said first end portion of said housing extending radially inwardly to form a first annular pocket between said first end portion and said intermediate portion, said first annular pocket facing said center opening;   said second end portion of said housing extending radially outwardly to form a second annular pocket between said second end portion and said intermediate portion, said second annular pocket facing away from said center opening for receiving the heat shield;   a washer extending radially from an outer periphery received in said first annular pocket of said housing to said center opening for receiving a fastener to connect the heat shield to the heat source; and   said washer including a plurality of through openings between said outer periphery and said center opening with each of said through openings having an arcuate shape for enhancing vibration dampening and minimizing heat transfer from the heat source to the heat shield.