| 摘要 |
An external heat engine, in particular a Sterling engine, comprises a first cylinder (2) and a second cylinder (3), in which respective first and second working pistons (21, 31) may move up and down periodically. A conduit (4) connects the first and second cylinders (2, 3) and delimits a closed working volume for a working fluid, which in operation reciprocally exerts pressure on the first and second working pistons (21, 31). A regenerator (5) is arranged in the conduit (4) in the path of the working fluid, which separates the conduit (4) into a hot branch tube (41) and a cold branch tube (42). Each one of the first and second cylinders (2, 3) is provided with a bellows, which is located within the working volume and hermetically seals the working volume at a transition zone from the respective first or second cylinder (2, 3) to a respective first or second bellows housing (12, 13). |
