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US 2013/0220111 A1Published application
Cryogenic refrigerator
AssigneeSumitomo Heavy Industries, Ltd.
InventorKoji YAMADA
Life of this patent
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Abstract
A disclosed cryogenic refrigerator includes a cylinder, a displacer reciprocally moving inside the cylinder, and an elastic unit which is provided in at least one of a pair of end regions respectively including a pair of end portions within a range of a reciprocal motion of the displacer, accumulates an elastic force when the displacer approaches the end portion, and releases the elastic force when the displacer departs from the end portion.
Claims7
A cryogenic refrigerator comprising:
- a cylinder;
- a displacer reciprocally moving inside the cylinder;
- and
- an elastic unit which is provided in at least one of a pair of end regions respectively including a pair of end portions within a range of a reciprocal motion of the displacer, accumulates an elastic force when the displacer approaches the end portion, and releases the elastic force when the displacer departs from the end portion.
1 more element
Dependencies are inferred from the claim text.