JPS6023286U

JPS6023286U - scroll compressor

Info

Publication number: JPS6023286U
Application number: JP11432283U
Authority: JP
Inventors: 哲哉荒田; 好勝富田; 小谷　純久; 朗村山
Original assignee: 株式会社日立製作所
Priority date: 1983-07-25
Filing date: 1983-07-25
Publication date: 1985-02-18

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

[Brief explanation of the drawing]

第１図は従来の密閉形スクロール圧縮機の断面図、第２
図は圧縮原理の説明図、第３図は従来の吐出孔部近傍の
部分断面図、第４図は吐出弁を有する従来の吐出孔部近
傍の部分断面図、第５図は高い圧力比で運転した場合の
ＰＶ線モデル図、第６図は低い圧力比で運転した場合の
ＰＶ線モデル図、第７図は運転状態の圧力比と圧縮効率
の関係線図、第８図は本考案の一実施例の吐出弁近傍の
部分断面図、第９図は第８図の平面図、第１０図は第８
図の分解図、第１１図は他の実施例の吐出弁近傍の部分
断面図、第１２図は第１１図の平面図、第１３図は第１
１図の分解図である。１・・・密閉容器、２・・・固定スクロール、３・・・
旋回スクロール、４・・・フレーム、５・・・シャフト
、６・・・ステータ、７・・・ロータ、８・・・吸入管
、９・・・吐出管、１０・・・潤滑油、１１・・・吐出
ポート、１２・・・吐出通路、１３・・・吸入室、１４
・・・吸入ポート、１５・・・旋回機構、１６・・・背
圧室、１７・・・密閉空間、１８・・・最小密閉空間、
３１・・・吐出弁、３２・・・吐出孔、３３・・・吐出
孔入口、３４・・・バルブセット孔、３５・・・吐出通
路用縦溝。Figure 1 is a sectional view of a conventional hermetic scroll compressor;
The figure is an explanatory diagram of the compression principle, Figure 3 is a partial sectional view near the conventional discharge hole, Figure 4 is a partial sectional view near the conventional discharge hole with a discharge valve, and Figure 5 is a high pressure ratio. PV line model diagram when operating, Figure 6 is a PV line model diagram when operating at a low pressure ratio, Figure 7 is a relationship diagram between pressure ratio and compression efficiency under operating conditions, and Figure 8 is a diagram of the relationship between the pressure ratio and compression efficiency of the present invention. A partial sectional view of the vicinity of the discharge valve of one embodiment, FIG. 9 is a plan view of FIG. 8, and FIG.
11 is a partial cross-sectional view of the vicinity of the discharge valve of another embodiment, FIG. 12 is a plan view of FIG. 11, and FIG. 13 is a
1 is an exploded view of FIG. 1...Airtight container, 2...Fixed scroll, 3...
Orbiting scroll, 4...Frame, 5...Shaft, 6...Stator, 7...Rotor, 8...Suction pipe, 9...Discharge pipe, 10...Lubricating oil, 11... ...Discharge port, 12...Discharge passage, 13...Suction chamber, 14
... Suction port, 15... Rotating mechanism, 16... Back pressure chamber, 17... Sealed space, 18... Minimum sealed space,
31...Discharge valve, 32...Discharge hole, 33...Discharge hole inlet, 34...Valve set hole, 35...Vertical groove for discharge passage.

Claims

[Scope of utility model registration request]

The compression section consists of a fixed scroll with a thinly wound groove in a thick disk, a discharge hole in the center, and an orbiting scroll with a thinly wound projection on a flat plate. In a scroll compressor configured with an orbiting mechanism for preventing the rotation and a drive unit for transmitting power to the orbiting scroll, the inside of the fixed scroll discharge hole is formed into a stepped cylindrical shape with a smaller compression chamber side and a larger outlet side. A discharge valve is provided in the discharge hole on the large outlet side, and one or several communication holes or grooves are provided that open into the discharge hole on the outlet side and simultaneously open on the fixed scroll flat plate on the outlet side. Scroll compressor.