IT1246969B - Pompa rotativa per vuoto, con otturatore a comando automatico per l'isolamento dell'ambiente sotto-vuoto. - Google Patents

Pompa rotativa per vuoto, con otturatore a comando automatico per l'isolamento dell'ambiente sotto-vuoto.

Info

Publication number
IT1246969B
IT1246969B ITFI910143A ITFI910143A IT1246969B IT 1246969 B IT1246969 B IT 1246969B IT FI910143 A ITFI910143 A IT FI910143A IT FI910143 A ITFI910143 A IT FI910143A IT 1246969 B IT1246969 B IT 1246969B
Authority
IT
Italy
Prior art keywords
vacuum
insulation
under
automatic control
rotary pump
Prior art date
Application number
ITFI910143A
Other languages
English (en)
Inventor
Franco Grazzini
Original Assignee
Galileo Vacuum Tec Spa
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 Galileo Vacuum Tec Spa filed Critical Galileo Vacuum Tec Spa
Priority to ITFI910143A priority Critical patent/IT1246969B/it
Publication of ITFI910143A0 publication Critical patent/ITFI910143A0/it
Priority to JP4147411A priority patent/JPH0681787A/ja
Priority to KR1019920010317A priority patent/KR930000838A/ko
Priority to EP92830312A priority patent/EP0519880A1/en
Publication of ITFI910143A1 publication Critical patent/ITFI910143A1/it
Application granted granted Critical
Publication of IT1246969B publication Critical patent/IT1246969B/it

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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • 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)

Abstract

Pompa rotativa per vuoto con un circuito idraulico a pressione per lubrificazione e con un otturatore (15) per l'isolamento fra l'ambiente sotto-vuoto (A) e la pompa per vuoto (1) all'atto dell'arresto di quest'ultima; per effetto di tale arresto e del conseguente abbassamento di pressione nel circuito idraulico (29), viene comandato un attuatore (27) a cilindro-pistone (31,33) che agisce su di un albero (17) per abbassare un braccio radiale (25), contro l'azione di una molla (37) che tende a portare l'otturatore (15) in chiusura. (FIG.1)
ITFI910143A 1991-06-17 1991-06-17 Pompa rotativa per vuoto, con otturatore a comando automatico per l'isolamento dell'ambiente sotto-vuoto. IT1246969B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITFI910143A IT1246969B (it) 1991-06-17 1991-06-17 Pompa rotativa per vuoto, con otturatore a comando automatico per l'isolamento dell'ambiente sotto-vuoto.
JP4147411A JPH0681787A (ja) 1991-06-17 1992-06-08 真空空間と真空ポンプの間を遮断する締切弁を備えた回転真空ポンプ
KR1019920010317A KR930000838A (ko) 1991-06-17 1992-06-15 진공 환경 분리용 자동 조정 차단 밸브를 구비한 로우터리 진공펌프
EP92830312A EP0519880A1 (en) 1991-06-17 1992-06-17 Inlet shut-off valve for rotary piston vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITFI910143A IT1246969B (it) 1991-06-17 1991-06-17 Pompa rotativa per vuoto, con otturatore a comando automatico per l'isolamento dell'ambiente sotto-vuoto.

Publications (3)

Publication Number Publication Date
ITFI910143A0 ITFI910143A0 (it) 1991-06-17
ITFI910143A1 ITFI910143A1 (it) 1992-12-17
IT1246969B true IT1246969B (it) 1994-12-01

Family

ID=11349690

Family Applications (1)

Application Number Title Priority Date Filing Date
ITFI910143A IT1246969B (it) 1991-06-17 1991-06-17 Pompa rotativa per vuoto, con otturatore a comando automatico per l'isolamento dell'ambiente sotto-vuoto.

Country Status (4)

Country Link
EP (1) EP0519880A1 (it)
JP (1) JPH0681787A (it)
KR (1) KR930000838A (it)
IT (1) IT1246969B (it)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB455003A (en) * 1935-05-07 1936-10-12 British Thomson Houston Co Ltd Improvements in and relating to vacuum pumps
GB1195361A (en) * 1966-03-28 1970-06-17 N G N Ltd Improvements in and relating to Vacuum Pumping apparatus including a Rotary Vacuum Pump
JPS60249691A (ja) * 1984-05-21 1985-12-10 ゼネラル　シグナル　コーポレーシヨン 回転ピストン真空ポンプ
IT1207829B (it) * 1987-02-04 1989-06-01 Galileo Spa Off Perfezionamento nel circuito di lubrificazione delle pompe rotative per vuoto.

Also Published As

Publication number Publication date
ITFI910143A0 (it) 1991-06-17
KR930000838A (ko) 1993-01-15
JPH0681787A (ja) 1994-03-22
EP0519880A1 (en) 1992-12-23
ITFI910143A1 (it) 1992-12-17

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960628