Claims
- 1. A low-temperature regenerative type refrigerator comprising:
- an expansion unit having a cylinder, a displacer for forming an expansion space within said cylinder, said displacer being disposed within the cylinder so as to be slidable reciprocatively through a seal, and a regenerator for heat exchange of gas which is fed into and discharged from said expansion space;
- a compressor for compressing the gas discharged from said expansion unit and feeding the compressed gas to the expansion unit;
- a water cooling type cooler for cooling said compressor with a cooling water; and
- a cooling water flow rate controller for controlling the flow rate of the cooling water in said water cooling type cooler in accordance with the temperature of the gas fed to said expansion unit from said compressor.
- 2. A low-temperature regenerative type refrigerator comprising:
- an expansion unit having a cylinder, a displacer for forming an expansion space within said cylinder, said displacer being disposed within the cylinder so as to be slidable reciprocatively through a seal, and a regenerator for heat exchange of gas which is fed into and discharged from said expansion space;
- a compressor for compressing the gas discharged from said expansion unit and feeding the compressed gas to the expansion unit;
- an air cooling type cooler for cooling said compressor with an air-cooling fan; and
- an air-cooling fan controller for controlling the number of revolutions of said air-cooling fan in accordance with the temperature of the gas fed to said expansion unit from said compressor.
Priority Claims (3)
Number |
Date |
Country |
Kind |
4-13918 |
Jan 1992 |
JPX |
|
4-36230 |
Feb 1992 |
JPX |
|
4-221863 |
Aug 1992 |
JPX |
|
Parent Case Info
This application is a divisional of application Ser. No. 08/267,384, filed Jun. 29, 1994, which is a divisional of application Ser. No. 08/006,483, now U.S. Pat. No. 5,345,770, filed Jan. 21, 1993, now U.S. Pat. No. 5,417,071.
US Referenced Citations (3)
Foreign Referenced Citations (6)
Number |
Date |
Country |
46-10255 |
Mar 1971 |
JPX |
0302563 |
Dec 1990 |
JPX |
3070942 |
Mar 1991 |
JPX |
3075457 |
Mar 1991 |
JPX |
1216587 |
Mar 1986 |
SUX |
1695068 |
Nov 1991 |
SUX |
Non-Patent Literature Citations (1)
Entry |
P. Hrycak, "Thermodynamic Analysis of a New Gag Refrigeration Cycle", (Bell Labs), Cryogenics, vol. 3, No. 1, Mar. 1963. |
Divisions (2)
|
Number |
Date |
Country |
Parent |
267384 |
Jun 1994 |
|
Parent |
6483 |
Jan 1993 |
|