GB1063068A - Improvements in and relating to oil-sealed rotary mechanical vacuum pumps - Google Patents

Improvements in and relating to oil-sealed rotary mechanical vacuum pumps

Info

Publication number
GB1063068A
GB1063068A GB4192165A GB4192165A GB1063068A GB 1063068 A GB1063068 A GB 1063068A GB 4192165 A GB4192165 A GB 4192165A GB 4192165 A GB4192165 A GB 4192165A GB 1063068 A GB1063068 A GB 1063068A
Authority
GB
United Kingdom
Prior art keywords
pipe
port
oil
air
oct
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
GB4192165A
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.)
Balzers Patent und Beteiligungs AG
Original Assignee
Balzers Patent und Beteiligungs AG
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 Balzers Patent und Beteiligungs AG filed Critical Balzers Patent und Beteiligungs AG
Publication of GB1063068A publication Critical patent/GB1063068A/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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Rotary Pumps (AREA)

Abstract

1,063,068. Rotary vacuum-pumps. BALZERS PATENT-UND LIZENZ-ANSTALT. Oct. 4, 1965 [Oct. 8, 1964], No. 41921/65. Heading F1F. In a rotary vacuum-pump of the radial-vane type, atmospheric air for ballasting and noisereducing purposes is admitted at a controlled rate to a compression chamber or working space (9), Figs. 1 and 2 (not shown), through a vertical pipe (10) and a port (11), the uppermost end of the pipe being situated above the surface level (8) of sealing oil lying in a reservoir or container (13) whereas the lowermost end includes a slot (16) and engages with a spring-biased ball (14) to effect throttling of said air. A gap (17) adjacent the lower side of the ball can be varied by changing the depth of engagement of the pipe with a screwthreaded bore (12). A proportion of oil in the chamber (9) is ejected through the port (11) to cleanse the gap (17) and the slot (16) while air is expelled through a port (6) controlled by a non- return valve (7) in the reservoir (13). Alternatively, the lowermost end of the pipe (10) engages with a disc (18), Fig. 3 (not shown), containing a flow-restricting orifice.
GB4192165A 1964-10-08 1965-10-04 Improvements in and relating to oil-sealed rotary mechanical vacuum pumps Expired GB1063068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1307664A CH416916A (en) 1964-10-08 1964-10-08 Oil-sealed mechanical rotating vacuum pump

Publications (1)

Publication Number Publication Date
GB1063068A true GB1063068A (en) 1967-03-30

Family

ID=4389087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4192165A Expired GB1063068A (en) 1964-10-08 1965-10-04 Improvements in and relating to oil-sealed rotary mechanical vacuum pumps

Country Status (4)

Country Link
CH (1) CH416916A (en)
DE (1) DE1503502A1 (en)
GB (1) GB1063068A (en)
NL (1) NL6412828A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0844398A1 (en) * 1996-11-21 1998-05-27 Copeland Corporation Scroll machine with reverse rotation protection

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2978214B1 (en) * 2011-07-21 2013-08-16 Adixen Vacuum Products DRY TYPE MULTI-STAGE VACUUM PUMP
CN109458335B (en) * 2018-09-25 2020-01-21 蒋友荣 Noise reduction structure of rotary vane vacuum pump
CN112081780A (en) * 2020-09-14 2020-12-15 浙江炜宇通风机电有限公司 Vibration damping base of axial flow fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0844398A1 (en) * 1996-11-21 1998-05-27 Copeland Corporation Scroll machine with reverse rotation protection

Also Published As

Publication number Publication date
CH416916A (en) 1966-07-15
DE1503502A1 (en) 1969-06-04
NL6412828A (en) 1966-04-12

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