Browse Prior Art Database

Thermal Expansion Compensation

IP.com Disclosure Number: IPCOM000078602D
Original Publication Date: 1973-Feb-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Machmer, JA: AUTHOR [+2]

Abstract

End block 10 is securely connected to cylinder 11 by a friction fit provided through annular elastomeric insert 12. Thermal expansion compensating elastomeric insert 12 maintains the integrity of the connection throughout a wide range of operating temperatures, in spite of differential thermal expansion of the cylinder 11 and end block 10.

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Thermal Expansion Compensation

End block 10 is securely connected to cylinder 11 by a friction fit provided through annular elastomeric insert 12. Thermal expansion compensating elastomeric insert 12 maintains the integrity of the connection throughout a wide range of operating temperatures, in spite of differential thermal expansion of the cylinder 11 and end block 10.

The insert 12 includes a reservoir portion 13 that contains a volume of the elastomeric material, which can expand outwardly through opening 14 in the end block 10. The actual radial expansion of the insert 12 is a function not only of the coefficient thermal expansion of the elastomeric material, but also of the volume of the reservoir 13 and the size of opening 14.

By appropriate design of reservoir 13, a wide range of thermal expansion compensation can be accommodated by a given elastomeric material.

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