High temperature resistant low friction washer and assembly
AssigneeFca US LLC
InventorsWensheng Zhang, Rohit Paranjpe, Yi-Hsin Chen, Kanwerdip Singh
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Abstract
A bolted joint for coupling two components that undergo thermal expansion and contraction includes a bolt having a head and a stem, the bolt configured to provide a clamping force between the two components. A first washer having a thermal resistant, low friction coating is configured to be disposed between one of the two components and the bolt head to enable the one component to slide relative to the bolt during the thermal expansion and contraction, while maintaining the clamping force, to facilitate preventing bending or shearing of the bolt.
Claims16
A bolted joint for coupling two components that undergo thermal expansion and contraction, the bolted joint comprising:
- a bolt having a head and a stem, the bolt configured to provide a clamping force between the two components;
- and
- a first washer having a thermal resistant, low friction coating configured to be disposed between one of the two components and the bolt head to enable the one component to slide relative to the bolt during the thermal expansion and contraction, while maintaining the clamping force, to facilitate preventing bending or shearing of the bolt;
- further comprising a second washer disposed between the first washer and the bolt head, the second washer having the thermal resistant, low friction coating to enable the first and second washers to slide relative to each other during the thermal expansion and contraction, while maintaining the clamping force, to further facilitate preventing bending or shearing of the bolt.
An assembly configured to undergo thermal expansion and contraction, the assembly comprising:
- a first component defining a first bore:
- a second component defining a second bore;
- and
- a bolted joint coupling the first and second components, the bolted joint comprising:
- a bolt having a head and a stem, the bolt extending into the first and second bores to provide a clamping force between the first and second components;
- and
- a first washer having a thermal resistant, low friction coating, the first washer disposed between the first component and the bolt head to enable the first component to slide relative to the bolt during the thermal expansion and contraction, while maintaining the clamping force, to facilitate preventing bending or shearing of the bolt;
- further comprising a second washer disposed between the first washer and the bolt head, the second washer having the thermal resistant, low friction coating to enable the first and second washers to slide relative to each other during the thermal expansion and contraction, while maintaining the clamping force, to further facilitate preventing bending or shearing of the bolt.
Dependencies are inferred from the claim text.