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US 11,725,854 B2Granted
Cryocooler
AssigneeSumitomo Heavy Industries, Ltd.
InventorsTakahiro Kuromoto, Yosuke Matsumura
Life of this patent
Estimating the term…
Abstract
A cryocooler includes a displacer that includes a lid portion and a main body portion, a displacer drive shaft that includes a collar portion held between the lid portion and the main body portion, and a buffer that is disposed in a clearance between the collar portion and the lid portion or between the collar portion and the main body portion and includes a soft material and a hard material disposed on an opposite side to the collar portion with respect to the soft material.
Claims5
A cryocooler comprising:
- a displacer that includes a lid portion and a main body portion;
- a displacer drive shaft that includes a collar portion held between the lid portion and the main body portion;
- and
- a buffer that is disposed in a clearance between the collar portion and the lid portion, or between the collar portion and the main body portion,
- wherein the buffer includes a soft material and a hard material,
- wherein the soft material is disposed between the collar portion and the hard material, and
- wherein the soft material is an elastic body and the hard material is harder than the soft material.
4 more elements
Dependencies are inferred from the claim text.