aneroid capsule

aneroid capsule

[′an·ə‚rȯid ′kap·səl]
(engineering)
A thin, disk-shaped box or capsule, usually metallic, partially evacuated and sealed, held extended by a spring, which expands and contracts with changes in atmospheric or gas pressure. Also known as bellows.
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The increase in performance was achieved with the help of new turbochargers with modified compressor machining, smaller wastegate aneroid capsule and sharpened engine mapping.
The New Mercedes-AMG GT R Developed in The "Green Hell"

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