JPS6069970U - Noise prevention device for refrigeration and air conditioning equipment - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は騒音レベルと時間との関係を示す特性図、第２
図は自動車用冷房装置の概略図、第３図は第１の実施例
を示す断面図、第４図は同上に用いた摺動リングの平面
図、第５図は摺動リングの他の実施例を示す平面図、第
６図はこの考案の他の実施例を示す断面図である。 ４・・・温度作動式−動膨張弁、２５・・・摺動リング
、２６・・・ばね。Figure 1 is a characteristic diagram showing the relationship between noise level and time, Figure 2 is a characteristic diagram showing the relationship between noise level and time.
The figure is a schematic diagram of an automobile cooling system, Figure 3 is a sectional view showing the first embodiment, Figure 4 is a plan view of the sliding ring used in the above, and Figure 5 is another embodiment of the sliding ring. FIG. 6 is a plan view showing an example, and FIG. 6 is a sectional view showing another embodiment of the invention. 4...Temperature-activated-dynamic expansion valve, 25...Sliding ring, 26...Spring.

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、温度作動式自動膨張弁及び蒸発器を順
次配管結合して閉回路とした冷凍、冷房・装置において
、前記凝縮器の出口から前記膨張弁のオリフィスに至る
までの間に、冷媒注力を受けて開口面積を変える可変オ
リフィスを設け、冷媒圧力が高いときに絞るようにした
ことを特徴とする冷凍、冷房装置の騒音防止装置。In a refrigeration or cooling device in which a compressor, a condenser, a temperature-activated automatic expansion valve, and an evaporator are sequentially connected via piping to form a closed circuit, from the outlet of the condenser to the orifice of the expansion valve, A noise prevention device for refrigeration and cooling equipment, characterized in that a variable orifice is provided that changes the opening area depending on the refrigerant concentration, and is configured to throttle when the refrigerant pressure is high.