Back to results
US 2019/0277542 A1Published application
Gm cryocooler
AssigneeSumitomo Heavy Industries, Ltd.
InventorsMingyao XU, Qian BAO, Takaaki MORIE
Life of this patent
Estimating the term…
Abstract
A GM cryocooler includes a displacer that is reciprocatable in an axial direction; a displacer cylinder that houses the displacer; a drive piston that is coupled to the displacer so as to drive the displacer in the axial direction; and a piston cylinder that houses the drive piston and that includes a drive chamber of which a pressure is controlled to drive the drive piston, and a gas spring chamber which is airtightly formed with respect to the displacer cylinder and is partitioned from the drive chamber by the drive piston.
Claims11
A GM cryocooler comprising:
- a displacer that is reciprocatable in an axial direction;
- a displacer cylinder that houses the displacer;
- a drive piston that is coupled to the displacer so as to drive the displacer in the axial direction;
- and
- a piston cylinder that houses the drive piston and that includes a drive chamber of which a pressure is controlled to drive the drive piston, and a gas spring chamber which is airtightly formed with respect to the displacer cylinder and is partitioned from the drive chamber by the drive piston.
2 more elements
Dependencies are inferred from the claim text.