Integrated type slit cold head suitable for U-shaped pulse tube refrigerator

• Main Authors: WANG LIBAO, WU YINONG, YANG KAIXIANG, DANG HAIZHENG, LI SHANSHAN, SHEN WEIBIN
• Format: Patent
• Language: Chinese; English
• Published: 14.09.2011
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

The utility model discloses an integrated slit cold head for a U-shaped pulse tube refrigerator, the cold head is formed by two parts of a top cover and a lower part flange. two cylindrical bosses with external diameters respectively equal to the inner diameters of a cold-storage device and a pulse tube protrude at the lower part of a big boss of the top cover, two bosses performs line cutting of parallel through slits in an integral, transverse, and uniform mode, the lower part flange is provided with through insertion holes matched with cylindrical bosses of the top cover, a sealing groove and a positioning groove matched with the top cover big boss are cutted on the upper surface of the lower part flange, the lower part flange are in a welding connection with the cold-storage device and the pulse tube to form an assembly. The top cover and the lower part flange can be connected via bolts to form a detachable split cold head, and can also be in a sealing welding to form an integrated cold head. The integrat