JPS61101693A - Oil free displacement type hydraulic machine - Google Patents

Oil free displacement type hydraulic machine

Info

Publication number
JPS61101693A
JPS61101693A JP59222028A JP22202884A JPS61101693A JP S61101693 A JPS61101693 A JP S61101693A JP 59222028 A JP59222028 A JP 59222028A JP 22202884 A JP22202884 A JP 22202884A JP S61101693 A JPS61101693 A JP S61101693A
Authority
JP
Japan
Prior art keywords
discharging
chamber
gas
temperature
compression
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.)
Granted
Application number
JP59222028A
Other languages
Japanese (ja)
Other versions
JPH0551076B2 (en
Inventor
Mitsuru Fujiwara
Akira Suzuki
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 JP59222028A priority Critical patent/JPH0551076B2/ja
Publication of JPS61101693A publication Critical patent/JPS61101693A/en
Publication of JPH0551076B2 publication Critical patent/JPH0551076B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To reduce a gas temperature in a discharging area effectively by a method wherein gas, having a temperature lower than the discharging gas temperature upon full load operation, is blown off into the discharging area including a discharging chamber and a compression chamber, communicated to the discharging chamber at all times.
CONSTITUTION: During effecting no-load operation, in which a suction chamber valve 5 is closed and a discharging chamber releasing valve 15 is opened to make both of a suction chamber pressure and the discharging chamber pressure less than respective pressures upon full-load operation, a part of gas of rear flow of an after cooler 8 is blown off into the discharging area including the discharging chamber and the compression chamber. According to this constitution, the low-temperature gas is blown off into the discharging area, whose temperature is to be reduced, without passing through the compression chamber, therefore, the pouring gas will never generate a compression heat due to the compression and the gas temperature in the discharging area may be reduced effectively.
COPYRIGHT: (C)1986,JPO&Japio
JP59222028A 1984-10-24 1984-10-24 Expired - Lifetime JPH0551076B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59222028A JPH0551076B2 (en) 1984-10-24 1984-10-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59222028A JPH0551076B2 (en) 1984-10-24 1984-10-24

Publications (2)

Publication Number Publication Date
JPS61101693A true JPS61101693A (en) 1986-05-20
JPH0551076B2 JPH0551076B2 (en) 1993-07-30

Family

ID=16775958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59222028A Expired - Lifetime JPH0551076B2 (en) 1984-10-24 1984-10-24

Country Status (1)

Country Link
JP (1) JPH0551076B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6345488A (en) * 1986-08-11 1988-02-26 Kobe Steel Ltd Oil-free screw compressor
US4812110A (en) * 1986-08-11 1989-03-14 Kabushiki Kaisha Kobe Seiko Sho Oil-free screw compressor with bypass of cooled discharged gas
JPH01244188A (en) * 1988-03-25 1989-09-28 Kobe Steel Ltd Screw type vacuum pump
JPH0278775A (en) * 1988-09-14 1990-03-19 Hokuetsu Kogyo Co Ltd Volume control device for oil-free screw compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6345488A (en) * 1986-08-11 1988-02-26 Kobe Steel Ltd Oil-free screw compressor
US4812110A (en) * 1986-08-11 1989-03-14 Kabushiki Kaisha Kobe Seiko Sho Oil-free screw compressor with bypass of cooled discharged gas
JPH01244188A (en) * 1988-03-25 1989-09-28 Kobe Steel Ltd Screw type vacuum pump
JPH0278775A (en) * 1988-09-14 1990-03-19 Hokuetsu Kogyo Co Ltd Volume control device for oil-free screw compressor

Also Published As

Publication number Publication date
JPH0551076B2 (en) 1993-07-30

Similar Documents

Publication Publication Date Title
JPS5776287A (en) Scroll compressor
JPS62253970A (en) Variable capacity compressor
JPS61101693A (en) Oil free displacement type hydraulic machine
JPS57176384A (en) Compressor
JPS6270681A (en) Scroll fluid machine
JPS63131839A (en) Piston for internal combustion engine
JPS61255285A (en) Compression capacity varying mechanism in swingable slash plate type compressor
JPS63131888A (en) Scroll refrigerant compressor
JPH02271094A (en) Control valve for variable displacement type scroll compressor
JPH0422783A (en) Scroll fluid machine
JPS60249685A (en) Scroll type hydraulic machine
JPS60249686A (en) Scroll type hydraulic machine
JPS60249684A (en) Scroll type hydraulic machine
JPH03100397A (en) Compressor
JPS63106394A (en) Starting load reducing device for screw compressor
JPS63143399A (en) Variable displacement type vane compressor
JPS614885A (en) Compressor
JPH0388987A (en) Scroll type compressor
JPH01163486A (en) Slide valve type screw compressor
JPS62113883A (en) Vane type compressor
JPS57135286A (en) Car cooler
JPS56159595A (en) Compressor for cooling cycle
JPH0268456A (en) Cooling device
JPS60166785A (en) Self-lubricating rotary compressor
JPS62186087A (en) Scroll type compressor

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term