JPH02147759U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案の一実施例における冷凍装置
の系統図、第２図は流路調整弁の構造を示す断面
図、第３図は従来の冷凍装置の系統図、第４図は
冷凍装置を冷凍庫内に据付けた状態を示す概略図
、第５図は冷媒液管用電磁弁の前後の圧力差およ
び入口側液冷媒の温度により発生する衝撃圧力を
示す図である。 図において、１…圧縮機、２…凝縮器、３…冷
媒液管用電磁弁、４…膨張弁、５…蒸発器、８…
高圧液管、１１…流路調整弁である。なお、各図
中同一符号は同一または相当部分を示す。 Fig. 1 is a system diagram of a refrigeration system according to an embodiment of this invention, Fig. 2 is a sectional view showing the structure of a flow path regulating valve, Fig. 3 is a system diagram of a conventional refrigeration system, and Fig. 4 is a system diagram of a refrigeration system. FIG. 5 is a schematic diagram showing the state in which the refrigerant is installed in a freezer, and FIG. 5 is a diagram showing the impact pressure generated by the pressure difference before and after the solenoid valve for the refrigerant liquid pipe and the temperature of the liquid refrigerant on the inlet side. In the figure, 1... Compressor, 2... Condenser, 3... Solenoid valve for refrigerant liquid pipe, 4... Expansion valve, 5... Evaporator, 8...
High pressure liquid pipe, 11... flow path adjustment valve. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧縮機、凝縮器、冷媒液管用電磁弁、膨張弁お
よび蒸発器等が順次接続されて冷凍サイクルを構
成する冷凍装置において、上記冷媒液管用電磁弁
の上流側で且つ近接する位置に内部を流れる冷媒
液の温度により流路断面積を増減する形状記憶合
金からなる流路調整弁を設けたことを特徴とする
冷凍装置。 In a refrigeration system in which a compressor, a condenser, a solenoid valve for a refrigerant liquid pipe, an expansion valve, an evaporator, etc. are sequentially connected to constitute a refrigeration cycle, the refrigerant flowing inside is located upstream of and close to the solenoid valve for the refrigerant liquid pipe. A refrigeration system characterized by being provided with a flow path adjustment valve made of a shape memory alloy that increases or decreases the cross-sectional area of the flow path depending on the temperature of the refrigerant liquid.