JPS6444385U

JPS6444385U -

Info

Publication number: JPS6444385U
Application number: JP13971587U
Authority: JP
Priority date: 1987-09-11
Filing date: 1987-09-11
Publication date: 1989-03-16

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す密閉形スクロ
ール圧縮機の縦断面図、第２図は同第１図のスク
ロールのかみあい状態を示す横断面図、第３図は
同第１図の旋回スクロールを中心とした縦断面図
、第４図は従来の密閉形スクロール圧縮機の縦断
面図、第５図は同第４図のスクロールのかみあい
状態を示す横断面図である。１……固定スクロール、２……旋回スクロール
、２ａ……鏡板、２ｂ，２ｃ……連通細孔、１０
……密閉容器、２０……背圧室、２２ａ，２２ｂ
……連通穴、２３ａ，２３ｂ……バルブ。 Fig. 1 is a vertical cross-sectional view of a hermetic scroll compressor showing an embodiment of the present invention, Fig. 2 is a cross-sectional view showing the meshing state of the scrolls shown in Fig. 1, and Fig. 3 is a cross-sectional view of the scroll compressor shown in Fig. 1. FIG. 4 is a longitudinal sectional view centered on the orbiting scroll, FIG. 4 is a longitudinal sectional view of a conventional hermetic scroll compressor, and FIG. 5 is a horizontal sectional view showing the meshing state of the scrolls shown in FIG. 4. 1... Fixed scroll, 2... Orbiting scroll, 2a... End plate, 2b, 2c... Communication pore, 10
...Airtight container, 20...Back pressure chamber, 22a, 22b
...Communication hole, 23a, 23b...Valve.

Claims

[Scope of utility model registration request]

A fixed scroll having a spiral wrap on the end plate, an orbiting scroll having a spiral wrap on the end plate that engages with the wrap, and a back pressure chamber formed on the side opposite to the wrap of the end plate of the orbiting scroll, in a closed container. And, on the end plate of the above-mentioned orbiting scroll,
a communication hole that communicates between the suction chamber formed between the scrolls and the back pressure chamber, and a communication hole that communicates the compression chamber and the back pressure chamber formed between the scrolls; A scroll compressor characterized by being provided with a valve that opens and closes the communication hole.