JPH0264789U

JPH0264789U -

Info

Publication number: JPH0264789U
Application number: JP14419388U
Authority: JP
Priority date: 1988-11-04
Filing date: 1988-11-04
Publication date: 1990-05-15

Description

[Brief explanation of drawings]

第１図乃至第６図は本考案の一実施例を示し、
第１図は主要部を示す概略断面図、第２図は可変
容量型ベーン型圧縮機を示す縦断面図、第３図は
第２図の一部を拡大して示した断面図、第４図は
第３図の―線に沿う断面図で、制御部材が全
稼動位置にあるときの図、第５図は第４図と同様
の図で、制御部材が一部稼動位置にあるときの図
、第６図は第３図の―線に沿う断面図、第７
図は本考案の他の実施例に係る可変容量型ベーン
型圧縮機の一部を拡大して示した断面図、第８図
は第７図の圧縮機に用いてあるガスケツトを示し
、同図ａはその平面図、同図ｂは同図ａのＡ―Ａ
線矢視断面図、第９図はガスケツトの一部を拡大
した図であつて、同図ａは従来のガスケツトの部
分拡大平面図、同図ｂは第８図のガスケツトの部
分拡大平面図、第１０図乃至第１１図は従来例を
示し、第１０図は主要部を示す概略断面図、第１
１図は従来の可変容量型圧縮機の一部を拡大して
示した断面図、第１２図は吐出圧と吸入室との関
係を示すグラフである。１１……吸入室、２３_２……高圧室、３１……
連通路（第１の通路）、３２……開閉弁機構、３
２ａ……ベローズ、３２ａ_１……ベローズの開放
端、３３……補助低圧室、３４……仕切壁、３５
……オリフイス（第２の通路）、４０……ガスケ
ツト。 1 to 6 show an embodiment of the present invention,
Fig. 1 is a schematic sectional view showing the main parts, Fig. 2 is a vertical sectional view showing a variable capacity vane type compressor, Fig. 3 is an enlarged sectional view of a part of Fig. 2, and Fig. 4 The figure is a sectional view taken along line - in Figure 3, when the control member is in the fully operating position, and Figure 5 is a view similar to Figure 4, when the control member is in the partially operating position. Figure 6 is a sectional view taken along the - line in Figure 3, Figure 7 is
The figure is an enlarged sectional view of a part of a variable capacity vane type compressor according to another embodiment of the present invention, and FIG. 8 shows a gasket used in the compressor of FIG. a is the plan view, and b is the A-A of the same figure a.
9 is an enlarged view of a part of the gasket, FIG. 9a is a partially enlarged plan view of the conventional gasket, FIG. 10 and 11 show a conventional example, FIG. 10 is a schematic sectional view showing the main part, and FIG.
FIG. 1 is an enlarged sectional view of a part of a conventional variable displacement compressor, and FIG. 12 is a graph showing the relationship between discharge pressure and suction chamber. 11... Suction chamber, 23 ₂ ... High pressure chamber, 31...
Communication passage (first passage), 32... Opening/closing valve mechanism, 3
2a... Bellows, 32a ₁ ... Open end of bellows, 33... Auxiliary low pressure chamber, 34... Partition wall, 35
... Orifice (second passage), 40 ... Gasket.

Claims

[Scope of utility model registration request]

A high pressure chamber into which high pressure is introduced and an auxiliary low pressure chamber are the first
A low pressure chamber into which low pressure is introduced communicates with the auxiliary low pressure chamber through a second passage, and in response to the pressure of the auxiliary low pressure chamber, the first In the variable capacity compressor, the variable displacement compressor is provided with an on-off valve mechanism that controls the discharge capacity by opening and closing a passage, and a bellows, which is a pressure responsive part of the on-off valve mechanism, is disposed in the auxiliary low pressure chamber. A variable displacement compressor, wherein the passage is located near the open end of the bellows.