JPS6290994U

JPS6290994U -

Info

Publication number: JPS6290994U
Application number: JP18345385U
Authority: JP
Priority date: 1985-11-27
Filing date: 1985-11-27
Publication date: 1987-06-10

Description

[Brief explanation of the drawing]

第１図ａ，ｂはこの考案に係るベーン型回転圧
縮機の一実施例を示すもので、ａはこの考案の要
部を部分断面にした正面断面図、ｂはダクトを設
けたリヤプレート部分の側面図、第２図乃至第６
図は従来のベーン型回転圧縮機を示すもので、第
２図は正面断面図、第３図は側面断面図、第４図
はフロントプレートの正面図、第５図はリヤプレ
ートの正面図、第６図は第２図からの作動説明図
である。１……ハウジング、３……カムリング、３Ａ…
…カム面、４……フロントプレート（サイドプレ
ート）、５……リヤプレート（サイドプレート）
、６……ロータ、１０……ベーン、１０Ａ……ス
リツト、１１……背圧通路、１３……作動室、１
６……低圧室、１８……高圧室、１８Ａ……潤滑
油溜、３４……バイパス孔（導入孔）、５２……
ダクト。 Figures 1a and 1b show an embodiment of a vane-type rotary compressor according to this invention, where a is a front cross-sectional view of the main part of this invention, and b is a rear plate portion provided with a duct. Side view of Figures 2 to 6
The figures show a conventional vane type rotary compressor, in which Fig. 2 is a front sectional view, Fig. 3 is a side sectional view, Fig. 4 is a front view of the front plate, and Fig. 5 is a front view of the rear plate. FIG. 6 is an explanatory diagram of the operation from FIG. 2. 1...housing, 3...cam ring, 3A...
...Cam surface, 4...Front plate (side plate), 5...Rear plate (side plate)
, 6... Rotor, 10... Vane, 10A... Slit, 11... Back pressure passage, 13... Working chamber, 1
6...Low pressure chamber, 18...High pressure chamber, 18A...Lubricating oil reservoir, 34...Bypass hole (introduction hole), 52...
duct.

Claims

[Scope of utility model registration request]

A cylindrical cam ring with a cam surface formed on the inner periphery, a pair of side plates that seal both ends of the cam ring, a rotor rotatably housed within the cam ring, the cam surface, the outer peripheral surface of the rotor, and the side plates. a plurality of working chambers defined by plates; a plurality of vanes that are removably inserted into slits extending substantially in a radial direction on the rotor; the vanes are in sliding contact with a cam surface at their tips; and a cam ring; Contains a compression mechanism consisting of a side plate, rotor and vanes,
A housing defining a low-pressure chamber into which a low-pressure working medium is introduced between the compression mechanism and a high-pressure chamber having a high-pressure lubricating oil reservoir at the bottom and into which the compressed high-pressure working medium is discharged; A back pressure passage is provided on the base end side of the vane in the slit, and the lubricating oil from the lubricating oil reservoir is introduced through the throttle, and the lubricating oil is sucked into one of the plurality of working chambers. The supply of working medium from the chamber is stopped, and high-pressure working medium is introduced into this working chamber from the high pressure chamber through the introduction hole provided in the side plate, and at the same time, the back pressure passage located on the side of this working chamber is inhaled. A vane type rotary compressor that can control the discharge amount of the compressed working medium by stopping the compression operation of the working medium by the vane in the working chamber by immersing the vane in the vane slit at the same pressure as the chamber. In the high pressure chamber,
one end is connected to the opening on the high pressure chamber side of the introduction hole,
A vane type rotary compressor characterized in that the other end of the duct is located above the oil level of the lubricating oil in the lubricating oil reservoir and opens.