FR640281A - Improvements to devices for testing ventilators - Google Patents

Improvements to devices for testing ventilators

Info

Publication number
FR640281A
FR640281A FR640281DA FR640281A FR 640281 A FR640281 A FR 640281A FR 640281D A FR640281D A FR 640281DA FR 640281 A FR640281 A FR 640281A
Authority
FR
France
Prior art keywords
ventilators
testing
devices
testing ventilators
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
Other languages
French (fr)
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.)
HH Robertson Co
Original Assignee
HH Robertson Co
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 HH Robertson Co filed Critical HH Robertson Co
Application granted granted Critical
Publication of FR640281A publication Critical patent/FR640281A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR640281D 1927-08-30 1927-08-30 Improvements to devices for testing ventilators Expired FR640281A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR640281T 1927-08-30

Publications (1)

Publication Number Publication Date
FR640281A true FR640281A (en) 1928-07-10

Family

ID=8997350

Family Applications (1)

Application Number Title Priority Date Filing Date
FR640281D Expired FR640281A (en) 1927-08-30 1927-08-30 Improvements to devices for testing ventilators

Country Status (1)

Country Link
FR (1) FR640281A (en)

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