BUTTERFLY VALVE ASSEMBLY, IN PARTICULAR FOR A GAS FLOW IN A FUEL CELL SYSTEM
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Aug 11, 2023
filing date -
Aug 11, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A butterfly valve assembly includes a butterfly valve housing providing a gas flow and a butterfly valve adjustable in the butterfly valve housing between a closed position and an open position. The valve has a disk-shaped butterfly valve element supported on a pivot shaft rotatable about a pivot shaft axis. The shaft has a first shaft end portion for coupling to a pivot shaft drive and which, in a first bearing region, is supported on the butterfly valve housing and a second pivot shaft end portion which, in a second bearing region, is supported on the butterfly valve housing. At least one bearing region out of the first and second bearing regions includes a bearing arrangement rotatably supporting the shaft and having a bearing projection arranged on the shaft to surround the shaft axis and protruding in the direction of a counterpart bearing region on the butterfly valve housing.
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