JPH0216954U

JPH0216954U -

Info

Publication number: JPH0216954U
Application number: JP9526388U
Authority: JP
Priority date: 1988-07-19
Filing date: 1988-07-19
Publication date: 1990-02-02

Description

[Brief explanation of drawings]

第１図は本考案の第１の実施例になる冷凍機の
デイスプレーサ装置の断面図、第２図は本考案の
第２の実施例になる冷凍機のデイスプレーサ装置
の要部断面図で、第１図の一点鎖線の円Ａ内の部
分に相当する図、第３図および第４図は本考案の
第３の実施例になる冷凍機のデイスプレーサ装置
を示し、第３図は要部斜視図、第４図は第３図を
切断線ＢおよびＣから展開した展開図、第５図は
従来技術による分離形スターリング冷凍機の一例
を示す断面図である。２……圧縮機、３，３ａ，３ｂ，３ｃ……デイ
スプレーサ、４……冷却端、５……シリンダ、６
……圧縮空間、８……膨脹空間、９……蓄冷器、
１１，１２……シール部材、１４ａ，１４ｂ……
ガス通路、２０……膨脹器、２１，２２，２３，
２４，２５……突起、２６……切欠部。 Fig. 1 is a sectional view of a refrigerator displacer device according to a first embodiment of the present invention, and Fig. 2 is a cross-sectional view of a main part of a refrigerator displacer device according to a second embodiment of the present invention. In the figures, the figure corresponding to the part within the circle A of the dashed line in Fig. 1, Figs. The figure is a perspective view of the main parts, FIG. 4 is a developed view of FIG. 3 along cutting lines B and C, and FIG. 5 is a cross-sectional view showing an example of a separate Stirling refrigerator according to the prior art. 2... Compressor, 3, 3a, 3b, 3c... Displacer, 4... Cooling end, 5... Cylinder, 6
...compression space, 8...expansion space, 9...regenerator,
11, 12... Seal member, 14a, 14b...
Gas passage, 20... Expander, 21, 22, 23,
24, 25...Protrusion, 26...Notch.

Claims

[Scope of utility model registration request]

One closed end of the cylinder is the low-temperature cooling end, and the other end is the high-temperature side.The cylinder has a cylinder attached to the casing, a regenerator built in, and a gas passage leading to both ends of the regenerator. a displacer that can freely reciprocate in the cylinder; the displacer has a low-temperature side sealing member and a high-temperature side sealing member on the outer periphery near both ends of the displacer; Expansion formed in the cylinder between the inner surface of the cooled end of the cylinder and the opposite end surface of the displacer by connecting piping to a compressor for the thermal medium and supplying and discharging the thermal medium to the cylinder. In the device that cools the cooling end by introducing the thermal medium into the space via the regenerator and expanding it, the thermal medium is introduced into the space through the regenerator and expands to cool the cooling end. A displacer device for a refrigerator, comprising a plurality of flange-shaped protrusions on the outer circumferential surface of the displacer and on the outer circumferential surface of the displacer between the sealing member on the low temperature side and the end on the expansion space side. .