JPH0459392U

JPH0459392U -

Info

Publication number: JPH0459392U
Application number: JP10173290U
Authority: JP
Priority date: 1990-09-28
Filing date: 1990-09-28
Publication date: 1992-05-21
Anticipated expiration: 2005-09-28
Also published as: JPH088312Y2

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例の正面断面図、第
２図はその側面断面図、第３図は本考案の第２実
施例の側面断面図、第４図は本考案の第３実施例
の側面断面図、第５図は従来の油冷式回転圧縮機
の管路配置図である。なお図中の符号は次の部分
を示す。１……圧縮機ハウジング、２……ロータ室、５
……吸気閉塞式アンローダ、６……そのケーシン
グ、１４……気体圧縮室、１５……吐出口、１６
……吐出室、１７……逆止弁、１８……吐出通路
、１９……圧力槽兼油槽、３４……分離室、３４
……油抜口、３８……流通室、４１……油抜き用
専用ポンプ、５２……切換弁。 Figure 1 is a front sectional view of the first embodiment of the present invention, Figure 2 is a side sectional view thereof, Figure 3 is a side sectional view of the second embodiment of the invention, and Figure 4 is the third embodiment of the invention. FIG. 5, a side sectional view of the embodiment, is a pipe layout diagram of a conventional oil-cooled rotary compressor. Note that the symbols in the figure indicate the following parts. 1...Compressor housing, 2...Rotor chamber, 5
...Intake closed type unloader, 6... Its casing, 14... Gas compression chamber, 15... Discharge port, 16
...Discharge chamber, 17...Check valve, 18...Discharge passage, 19...Pressure tank/oil tank, 34...Separation chamber, 34
...Oil drain port, 38...Distribution chamber, 41...Special pump for oil drain, 52...Switching valve.

Claims

[Claims for Utility Model Registration] (1) An intake block type unloader is provided on the intake side, the gas sucked into the gas compression chamber is compressed by a compression rotor, and the compressed gas is discharged together with the lubricating oil injected into the gas compression chamber. An oil-cooled type in which lubricating oil is discharged into a chamber and discharged from the discharge chamber into a pressure tank and oil tank via a check valve, and the lubricating oil discharged into the discharge chamber is removed from the discharge chamber by a dedicated pump. In the rotary compressor, the bottom of the discharge chamber is formed at a level lower than the check valve, a separation chamber of a predetermined volume is formed adjacent to the discharge chamber, and an opening on the discharge chamber side is connected to the discharge chamber. The separation chamber is communicated with the discharge chamber by a flow path disposed close to the bottom of the chamber, and an oil outlet formed at the bottom of the separation chamber is communicated with the suction side of the dedicated pump. An oil-cooled rotary compressor featuring: (2) The oil-cooled rotary compressor according to claim 1, wherein the separation chamber has a smaller volume than the discharge chamber. (3) the flow path is formed inside a partition wall that partitions the discharge chamber and the separation chamber, one end of which opens into the separation chamber, and the other end of which opens at a position close to the bottom of the discharge chamber; and at least 1 in the middle
The oil-cooled rotary compressor according to claim 1 or 2, characterized in that the compressor has curved passages each having a small diameter. (4) The flow path is formed by a small-diameter through hole formed in the partition wall that partitions the discharge chamber and the separation chamber at a position close to the bottom of the discharge chamber. An oil-cooled rotary compressor according to claim 1 or 2. (5) forming a gas passage connecting the inside of the separation chamber close to the top of the separation chamber and either the intake port of the rotary compressor or the gas compression chamber immediately after intake air is trapped by the compression rotor; , a switching valve interlocked with the intake blocking type unloader is disposed in the gas passage, and the switching valve operates when the intake blocking type unloader blocks the intake side of the rotary compressor;
The oil-cooled rotary compressor according to claim 1 or 2, wherein the separation chamber and the gas compression chamber are communicated with each other.