Stirling engine
AssigneeYanmar Holdings Co., Ltd.
InventorsMasato KITAZAKI, Toru YOSHIZUKA, Osamu SAKAMOTO
Life of this patent
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Abstract
A Stirling engine including a crosshead mechanism includes a low-pressure space and a high-pressure space. In the high-pressure space, a piston is driven by a heating/cooling cycle of a working fluid. The low-pressure space accommodates a crosshead portion connected to the piston via a piston rod, and a crank mechanism that rotates a crankshaft along with movement of the crosshead portion. A high-pressure gas seal in which a lip angle of a seal lip on the high-pressure side is smaller than that on the low-pressure side is provided around the piston rod at a partition between the low-pressure space and the high-pressure space.
Claims8
A Stirling engine having a crosshead mechanism, the Stirling engine comprises:
- a high-pressure space in which a piston is configured to be driven by a heating/cooling cycle of a working fluid;
- and
- a low-pressure space in which a crosshead portion connected to the piston via a piston rod and a crank mechanism configured to rotate a crankshaft along with movement of the crosshead portion are stored, and
- a gas seal is provided around the piston rod at a partition between the low-pressure space and the high-pressure space such that a lip angle of a seal lip is made smaller on a high-pressure side than on a low-pressure side.
Dependencies are inferred from the claim text.