ALPHA STIRLING ENGINE
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United States of America Patent
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Issued Date -
Dec 21, 2023
app pub date -
Oct 20, 2021
filing date -
Oct 30, 2020
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Abstract
An alpha type Stirling engine (1) comprises an expansion cylinder (2) and a compression cylinder (3). The Stirling engine further comprises a regenerator (4), a cooler (5), a heater (6), and a gas channel (7) which provides the expansion cylinder (2) in fluid communication with the compression cylinder (3). At least one of the expansion cylinder (2) and the compression cylinder (3) has a twin cylinder (2′, 3′) which functions as an additional expansion cylinder (2′) or an additional compression cylinder (3′), respectively, wherein the one of the expansion cylinder (2) and the compression cylinder (3) that has a twin cylinder (2′, 3′), is together with said twin cylinder (2′ 3′) connected to a first portion (7a) of the gas channel (7), from which first portion (7a) the gas channel (7) extends via the regenerator (4) to a second portion (7b) to which the other one of the expansion cylinder (2) and the compression cylinder (3) is connected.
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