Pulse tube refrigerator
AssigneeAisin Seiki Kabushiki Kaisha
InventorsShaowei Zhu, Shin Kawano, Tatsuo Inoue, Masafumi Nogawa
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Abstract
A pulse tube refrigerator includes a regenerator including a cold end and a hot end, a cold head connected to the cold end of the regenerator, a pulse tube having a cold end and a hot end and connected at its cold end to the cold head, a pressure fluctuation source connected to the hot end of the regenerator, a buffer connected to the hot end of the pulse tube through an orifice, and an auxiliary buffer connected to the hot end of the pulse tube through a buffer side control valve. The buffer and the auxiliary buffer may be replaced by a single buffer connected to the hot end of the pulse tube through an orifice and a buffer side control valve which are arranged in parallel.
Claims12
A pulse tube refrigerator comprising:
- a regenerator including a cold end and a hot end;
- a cold head connected to the cold end of said regenerator;
- a pulse tube having a cold end connected to said cold head, said pulse tube also having a hot end;
- a pressure fluctuation source connected to the hot end of said regenerator;
- a buffer connected to the hot end of said pulse tube through an orifice;
- and
- an auxiliary buffer connected to the hot end of said pulse tube through a buffer side control valve positioned between said auxiliary buffer and said hot end of said pulse tube.
A pulse tube refrigerator comprising:
- a regenerator including a cold end and a hot end;
- a cold head connected to the cold end of said regenerator;
- a pulse tube having a cold end connected to said cold head, said pulse tube also having a hot end;
- a pressure fluctuation source connected to the hot end of said regenerator;
- and
- a buffer connected to the hot end of said pulse tube, further comprising an orifice and a buffer side control valve arranged in parallel between said buffer and said hot end of said pulse tube.
Dependencies are inferred from the claim text.