Cryogenic refrigerator
AssigneeSumitomo Heavy Industries, Ltd.
InventorsTakaaki MORIE, Mingyao XU
Life of this patent
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Abstract
A cryogenic refrigerator includes a compressor that compresses a working gas; an expansion chamber where the working gas compressed by the compressor expands and generates cooling; a valve mechanism including a stator valve and a rotor valve, which rotates with respect to the stator valve; and a forcing mechanism that applies a force to one of the rotor valve or the stator valve toward the other one of the rotor valve or the stator valve. The valve mechanism is configured to switch a flow of the working gas between the compressor and the expansion chamber as the rotor valve rotates. The forcing mechanism is arranged such that the center of the force applied by the forcing mechanism deviates from the center of the valve mechanism.
Claims5
A cryogenic refrigerator, comprising:
- a compressor that compresses a working gas;
- an expansion chamber where the working gas compressed by the compressor expands and generates cooling;
- a valve mechanism including a stator valve and a rotor valve, which rotates with respect to the stator valve, the valve mechanism being configured to switch a flow of the working gas between the compressor and the expansion chamber as the rotor valve rotates;
- and
- a forcing mechanism that applies a force to one of the rotor valve or the stator valve toward the other one of the rotor valve or the stator valve;
- wherein a center of the force applied by the forcing mechanism is arranged to deviate from a center of the valve mechanism.
Dependencies are inferred from the claim text.