GB1454226A - Device and method for providing a steady vacuum pressure from a vacuum generator - Google Patents

Device and method for providing a steady vacuum pressure from a vacuum generator

Info

Publication number
GB1454226A
GB1454226A GB5390374A GB5390374A GB1454226A GB 1454226 A GB1454226 A GB 1454226A GB 5390374 A GB5390374 A GB 5390374A GB 5390374 A GB5390374 A GB 5390374A GB 1454226 A GB1454226 A GB 1454226A
Authority
GB
United Kingdom
Prior art keywords
vacuum
chamber
steady
flow
outlet
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
GB5390374A
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.)
Elektromat VEB
Original Assignee
Elektromat VEB
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 Elektromat VEB filed Critical Elektromat VEB
Publication of GB1454226A publication Critical patent/GB1454226A/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

1454226 Vacuum generation apparatus ELEKTROMAT VEB 13 Dec 1974 [27 Dec 1973] 53903/74 Heading F1N A steady vacuum pressure is generated in a chamber 8 by a vacuum generator 1 connected to the chamber 8 through a flow restriction, the chamber having a restricted flow inlet connection 16 to atmosphere and a service connection 17 for connection to apparatus requiring a steady vacuum pressure. The flow restrictions shown are in the form of an orifice plate 6 having apertures of different diameter for selective disposition over the outlet 15 from the chamber 8 and a small bore duct 7 connected to the inlet connection 16. The degree of vacuum established in the chamber 8 depends upon the ratio of the flow restrictions, and to enable this to be adjusted, the duct 7 may be divided into sections (9a, 9b) inter-connected by chambers (10) having valve controlled openings to atmosphere, Fig. 2 (not shown). If the generation of an unsteady vacuum is to be avoided, the flow restriction at the outlet 15 is chosen so as to produce a velocity of flow therethrough which is sonic. Apparatus requiring an intermittent vacuum supply can be connected via pipes 4 to a distributer 3 positioned between the generator and the outlet 15 without disturbing the steady pressure in the chamber 8.
GB5390374A 1973-12-27 1974-12-13 Device and method for providing a steady vacuum pressure from a vacuum generator Expired GB1454226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD17563273A DD109092A1 (en) 1973-12-27 1973-12-27

Publications (1)

Publication Number Publication Date
GB1454226A true GB1454226A (en) 1976-11-03

Family

ID=5494068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5390374A Expired GB1454226A (en) 1973-12-27 1974-12-13 Device and method for providing a steady vacuum pressure from a vacuum generator

Country Status (5)

Country Link
CS (1) CS176626B1 (en)
DD (1) DD109092A1 (en)
DE (1) DE2453553A1 (en)
FR (1) FR2256327B3 (en)
GB (1) GB1454226A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037974A1 (en) * 1980-04-14 1981-10-21 DR.-ING. RUDOLF HELL GmbH Stretch mount for reproduction machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037974A1 (en) * 1980-04-14 1981-10-21 DR.-ING. RUDOLF HELL GmbH Stretch mount for reproduction machines

Also Published As

Publication number Publication date
DD109092A1 (en) 1974-10-12
DE2453553A1 (en) 1975-07-10
FR2256327B3 (en) 1977-09-23
FR2256327A1 (en) 1975-07-25
CS176626B1 (en) 1977-06-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee