JPS62190884U

JPS62190884U -

Info

Publication number: JPS62190884U
Application number: JP7953486U
Authority: JP
Priority date: 1986-05-28
Filing date: 1986-05-28
Publication date: 1987-12-04

Description

[Brief explanation of the drawing]

第１図は本考案に係るロータリコンプレツサを
示す平断面図、第２図は第１図の要部を示す斜視
図、第３図はローラにブレードが当接した状態を
示す概略断面図、第４図はローラからブレードが
離間された状態を示す概略断面図、第５図はブレ
ードを示す斜視図、第６図は被圧縮流体逆流防止
手段を示す概略断面図、第７図は従来のロータリ
コンプレツサを示す側断面図、第８図は従来のロ
ータリコンプレツサを示す平断面図である。図中、１８ｃはシリンダ室、１８ａは圧縮部、
１８ｂは吸込部、２１はローラ、２２はブレード
、２５はブレード移動制御手段、２８は圧力バラ
ンス手段、３０は被圧縮流体逆流防止手段として
の逆止弁である。 FIG. 1 is a plan sectional view showing a rotary compressor according to the present invention, FIG. 2 is a perspective view showing the main part of FIG. 1, and FIG. 3 is a schematic sectional view showing a state where the blade is in contact with the roller. Fig. 4 is a schematic sectional view showing the blade separated from the roller, Fig. 5 is a perspective view showing the blade, Fig. 6 is a schematic sectional view showing compressed fluid backflow prevention means, and Fig. 7 is a conventional FIG. 8 is a side sectional view showing a rotary compressor, and FIG. 8 is a plan sectional view showing a conventional rotary compressor. In the figure, 18c is a cylinder chamber, 18a is a compression section,
18b is a suction part, 21 is a roller, 22 is a blade, 25 is a blade movement control means, 28 is a pressure balance means, and 30 is a check valve as a compressed fluid backflow prevention means.

Claims

[Scope of Claim for Utility Model Registration] (1) In a rotary compressor having a blade that comes into contact with a roller and partitions the cylinder chamber into a compression section and a suction section, the blade that comes into contact with the roller is arranged in a radial direction from the outer peripheral surface of the roller. A blade movement control means for holding the blade at an outside position, and when the blade is held at a position radially outside the roller outer peripheral surface by the blade movement control means, the inside and outside of the cylinder are communicated, and the pressure outside the cylinder room and the pressure inside the cylinder are controlled. and a compressed fluid backflow prevention means provided in the suction system of the suction section to introduce the compressed fluid only into the suction section side. Compressa. (2) a through-hole formed in the bearing portion through which the pressure balance means partitions the cylinder chamber and guides the blade; and a through-hole formed in the blade so that when the blade is held by the blade movement control means, the through-hole The rotary compressor according to claim 1, which is constituted by a cutout for communicating with the outside of the cylinder and introducing pressure outside the cylinder into the cylinder. (3) The rotary compressor according to claim 1, wherein the compressed fluid backflow prevention means is constituted by a check valve provided on a suction pipe that introduces the compressed fluid into the suction portion.