GB747344A - Improvements in or relating to oil sealed rotary vacuum pumps - Google Patents

Improvements in or relating to oil sealed rotary vacuum pumps

Info

Publication number
GB747344A
GB747344A GB542152A GB542152A GB747344A GB 747344 A GB747344 A GB 747344A GB 542152 A GB542152 A GB 542152A GB 542152 A GB542152 A GB 542152A GB 747344 A GB747344 A GB 747344A
Authority
GB
United Kingdom
Prior art keywords
oil
pump
pipe
tray
reservoir
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.)
Expired
Application number
GB542152A
Inventor
Leslie Arthur Holland
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.)
Edwards High Vacuum Ltd
Original Assignee
W Edwards and Company London 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 W Edwards and Company London Ltd filed Critical W Edwards and Company London Ltd
Priority to GB542152A priority Critical patent/GB747344A/en
Publication of GB747344A publication Critical patent/GB747344A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/026—Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/02—Liquid sealing for high-vacuum pumps or for compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2220/00—Application
    • F04C2220/50—Pumps with means for introducing gas under pressure for ballasting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The oil of an oil-sealed rotary vacuum pump is freed from contaminants by discharging the exhaust oil from the pump into a reservoir, aerating the oil therein with dry air to vaporize and remove contaminants, and recirculating the purified oil to the pump. In Fig. 1, sealing oil from a water-cooled rotary pump 4 flows through discharge pipe 17 into the bottom of reservoir <PICT:0747344/III/1> 5, which is surrounded by heating element 6. Oil discharged from pipe 17 is deflected by electrically heated baffle 23 on to tray 19, overflows from the tray, and flows through the annular passage 21 formed between the tray and the wall of the reservoir on to tray 20, and thence through a central aperture 22 to the bottom of the reservoir. Volatile vapours from the oil are removed by pipe 8. Dried compressed air, which may be preheated, from container 5 is bubbled through the oil via pipe 26 and perforated pipes 27. Purified oil is returned to the pump through pipe 18 and magnetic valve 11.
GB542152A 1952-02-29 1952-02-29 Improvements in or relating to oil sealed rotary vacuum pumps Expired GB747344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB542152A GB747344A (en) 1952-02-29 1952-02-29 Improvements in or relating to oil sealed rotary vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB542152A GB747344A (en) 1952-02-29 1952-02-29 Improvements in or relating to oil sealed rotary vacuum pumps

Publications (1)

Publication Number Publication Date
GB747344A true GB747344A (en) 1956-04-04

Family

ID=9795869

Family Applications (1)

Application Number Title Priority Date Filing Date
GB542152A Expired GB747344A (en) 1952-02-29 1952-02-29 Improvements in or relating to oil sealed rotary vacuum pumps

Country Status (1)

Country Link
GB (1) GB747344A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403069B1 (en) * 1959-06-19 1970-01-29 Leybold Heraeus Gmbh & Co Kg Liquid-sealed rotating mechanical vacuum pump
EP0725902A1 (en) * 1993-10-29 1996-08-14 Cash Engineering Research Pty. Ltd. Tank mounted rotary compressor
EP2342462A2 (en) * 2008-11-08 2011-07-13 Oerlikon Leybold Vacuum GmbH Method for operating an oil-tight vacuum pump and oil-tight vacuum pump
CN108825503A (en) * 2018-08-31 2018-11-16 重庆开山压缩机有限公司 The making-up air device of exhaust end base of oil injection threaded bolt formula vacuum pump
GB2593238A (en) * 2020-03-10 2021-09-22 Atlas Copco Airpower Nv A lubricant recovery system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403069B1 (en) * 1959-06-19 1970-01-29 Leybold Heraeus Gmbh & Co Kg Liquid-sealed rotating mechanical vacuum pump
EP0725902A1 (en) * 1993-10-29 1996-08-14 Cash Engineering Research Pty. Ltd. Tank mounted rotary compressor
EP0725902A4 (en) * 1993-10-29 1998-05-06 Cash Eng Res Tank mounted rotary compressor
EP2342462A2 (en) * 2008-11-08 2011-07-13 Oerlikon Leybold Vacuum GmbH Method for operating an oil-tight vacuum pump and oil-tight vacuum pump
CN108825503A (en) * 2018-08-31 2018-11-16 重庆开山压缩机有限公司 The making-up air device of exhaust end base of oil injection threaded bolt formula vacuum pump
CN108825503B (en) * 2018-08-31 2024-01-23 重庆开山流体机械有限公司 Air supplementing device of oil injection screw type vacuum pump
GB2593238A (en) * 2020-03-10 2021-09-22 Atlas Copco Airpower Nv A lubricant recovery system
US12104597B2 (en) 2020-03-10 2024-10-01 Atlas Copco Airpower N.V. Vacuum pump lubricant recovery system returning lubricant from the air filter based on pressure measurements in the vacuum pump

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