JPS5735186A - Screw compressor - Google Patents

Screw compressor

Info

Publication number
JPS5735186A
JPS5735186A JP10954880A JP10954880A JPS5735186A JP S5735186 A JPS5735186 A JP S5735186A JP 10954880 A JP10954880 A JP 10954880A JP 10954880 A JP10954880 A JP 10954880A JP S5735186 A JPS5735186 A JP S5735186A
Authority
JP
Japan
Prior art keywords
gas
compression
over
check valve
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10954880A
Other languages
Japanese (ja)
Inventor
Masanori Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hokuetsu Industries Co Ltd
Original Assignee
Hokuetsu Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hokuetsu Industries Co Ltd filed Critical Hokuetsu Industries Co Ltd
Priority to JP10954880A priority Critical patent/JPS5735186A/en
Publication of JPS5735186A publication Critical patent/JPS5735186A/en
Pending legal-status Critical Current

Links

Landscapes

  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary-Type Compressors (AREA)

Abstract

PURPOSE: To prevent drop of compression capacity by eliminating the over-compressed state through permitting the gas in the compression space to flow out to the discharge hole passing a check valve and by shutting the communication between the gas passage and compression chamber while there is no over-compression.
CONSTITUTION: When an over-compressed state is going to arise due to change of volumes of the male and female rotors 3, 4, the over-compressed gas opens immediately a check valve 36 to exhaust part of the high pressure gas in the compression chamber to the gas discharge hole 8 through an opening 31 and passage 30. Thus overcompression is hindered. When the over-compressed state is out, the check valve 36 is restituted to the closed position and the gas pressure of gas discharge hole 8 acts always on the gas passage 30, so that the check valve 36 blocks the compression chamber 1 from gas passage 30. Accordingly, compression and expansion of the gas in the compression chamber 1 is not transmitted to the gas staying in the gas passage 30, and thus drop of compression capacity can be prevented.
COPYRIGHT: (C)1982,JPO&Japio
JP10954880A 1980-08-08 1980-08-08 Screw compressor Pending JPS5735186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10954880A JPS5735186A (en) 1980-08-08 1980-08-08 Screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10954880A JPS5735186A (en) 1980-08-08 1980-08-08 Screw compressor

Publications (1)

Publication Number Publication Date
JPS5735186A true JPS5735186A (en) 1982-02-25

Family

ID=14513030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10954880A Pending JPS5735186A (en) 1980-08-08 1980-08-08 Screw compressor

Country Status (1)

Country Link
JP (1) JPS5735186A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101387282B1 (en) * 2010-10-04 2014-04-18 가부시키가이샤 고베 세이코쇼 Screw expander

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101387282B1 (en) * 2010-10-04 2014-04-18 가부시키가이샤 고베 세이코쇼 Screw expander

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