JPH0399887U

JPH0399887U -

Info

Publication number: JPH0399887U
Application number: JP834990U
Authority: JP
Priority date: 1990-01-31
Filing date: 1990-01-31
Publication date: 1991-10-18

Description

[Brief explanation of drawings]

第１図は本考案の第１の実施例を示す部分的縦
断面図、第２図は本考案の第２の実施例を示す部
分的縦断面図、第３図は従来のスクロール型冷凍
圧縮機の縦断面図である。固定スクロール……１、端板……１１、うず巻
状ラツプ……１２、旋回スクロール……２、端板
……２１、うず巻状ラツプ……２２、リリーフポ
ート……３０、リリーフ弁……３１、リリーフ室
……３４、リリーフ通路……３５。 Fig. 1 is a partial vertical sectional view showing the first embodiment of the present invention, Fig. 2 is a partial longitudinal sectional view showing the second embodiment of the invention, and Fig. 3 is a conventional scroll type refrigeration compression. FIG. Fixed scroll...1, End plate...11, Spiral wrap...12, Orbiting scroll...2, End plate...21, Spiral wrap...22, Relief port...30, Relief valve... 31, Relief room...34, Relief passageway...35.

Claims

[Claims for Utility Model Registration] (1) A fixed scroll and an orbiting scroll each having a spiral wrap erected on the inner surface of an end plate are engaged with each other at different angles to form a sealed space, In a scroll type refrigeration compressor that compresses refrigerant gas sucked into the sealed space by rotating the orbiting scroll, a relief port communicating with the sealed space is bored in the end plate of the fixed scroll. A scroll type refrigeration compressor characterized in that a relief valve for opening and closing this relief port is provided, and the other end of this relief port is communicated with the suction side of the compressor. (2) A fixed scroll and an orbiting scroll, each having a spiral wrap erected on the inner surface of an end plate, are meshed with each other at different angles to form a sealed space, and the orbiting scroll is caused to revolve around the orbit. In a scroll type refrigeration compressor that compresses refrigerant gas sucked into the closed space, a relief port is provided in the end plate of the orbiting scroll, one end communicating with the closed space and the other end communicating with the low pressure side. A scroll type refrigeration compressor, characterized in that it is provided with a relief valve that opens and closes the relief port.