JPS578392A - Capacity controller for oil cooled screw compressor - Google Patents

Capacity controller for oil cooled screw compressor

Info

Publication number
JPS578392A
JPS578392A JP8144880A JP8144880A JPS578392A JP S578392 A JPS578392 A JP S578392A JP 8144880 A JP8144880 A JP 8144880A JP 8144880 A JP8144880 A JP 8144880A JP S578392 A JPS578392 A JP S578392A
Authority
JP
Japan
Prior art keywords
oil separator
pressure
regulating valve
aftercooler
air
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
JP8144880A
Other languages
Japanese (ja)
Inventor
Fumio Takeda
Takashi Yoshida
Hiroyuki Matsuda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8144880A priority Critical patent/JPS578392A/en
Publication of JPS578392A publication Critical patent/JPS578392A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To keep a pressure at a set value by providing a by-pass line between an aftercooler and an oil separator to make a by-passing of an air amount, which is the same as that of the air which flows out from a discharge opening of a suction unloader, from the aftercooler to the oil separator.
CONSTITUTION: The air inside an oil separator 9 is discharged through a pressure regulating valve 12 by opening a solenoid valve 16 at the time of an unloading till the pressure reaches a preset value of the pressure regulating valve 12. Since a by- pass piping to which a pressure regulating valve 20 and a nozzle 19 are attached, is provided between an aftercooler 10 and the oil separator 9, the air amounts the same as that which flows out to an environment through a discharging opening 11 from a cylinder of a suction unloader 6 and is by-passed from the after-cooler 10 to the oil separator 9. Thus, the pressure at the oil separator can be kept at the preset value of the regulating valve 12, and also, the oil feeding to the bearing can be performed with much more sureness.
COPYRIGHT: (C)1982,JPO&Japio
JP8144880A 1980-06-18 1980-06-18 Capacity controller for oil cooled screw compressor Pending JPS578392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8144880A JPS578392A (en) 1980-06-18 1980-06-18 Capacity controller for oil cooled screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8144880A JPS578392A (en) 1980-06-18 1980-06-18 Capacity controller for oil cooled screw compressor

Publications (1)

Publication Number Publication Date
JPS578392A true JPS578392A (en) 1982-01-16

Family

ID=13746674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8144880A Pending JPS578392A (en) 1980-06-18 1980-06-18 Capacity controller for oil cooled screw compressor

Country Status (1)

Country Link
JP (1) JPS578392A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401551B (en) * 1994-03-30 1996-10-25 Hoerbiger Ventilwerke Ag DEVICE FOR REDUCING THE PRESSURE OF A COMPRESSOR
US6174148B1 (en) * 1998-07-23 2001-01-16 Ishikawajima-Harima Heavy Industries Co., Ltd. Water jet type air compressor system, its starting method, and water quality control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401551B (en) * 1994-03-30 1996-10-25 Hoerbiger Ventilwerke Ag DEVICE FOR REDUCING THE PRESSURE OF A COMPRESSOR
US6174148B1 (en) * 1998-07-23 2001-01-16 Ishikawajima-Harima Heavy Industries Co., Ltd. Water jet type air compressor system, its starting method, and water quality control method thereof

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