GB1153423A - Rotary Flow-Meters - Google Patents

Rotary Flow-Meters

Info

Publication number
GB1153423A
GB1153423A GB1525165A GB1525165A GB1153423A GB 1153423 A GB1153423 A GB 1153423A GB 1525165 A GB1525165 A GB 1525165A GB 1525165 A GB1525165 A GB 1525165A GB 1153423 A GB1153423 A GB 1153423A
Authority
GB
United Kingdom
Prior art keywords
rotor
slots
stator
gas
tube
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
GB1525165A
Inventor
Lawrence Alfred Cox
Geoffrey Donald Black
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.)
BOC Group Ltd
Original Assignee
British Oxigen 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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB1525165A priority Critical patent/GB1153423A/en
Publication of GB1153423A publication Critical patent/GB1153423A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
    • G01F1/07—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission with mechanical coupling to the indicating device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
    • G01F1/08—Adjusting, correcting or compensating means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Emergency Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1,153,423. Rotary fluid-flow meters. BRITISH OXYGEN CO. Ltd. July 11, 1966 [April 9, 1965], No.15251/65. Heading F1F. A rotary meter for measuring the aggregate volume, or volume per unit time, of a gas flowing therethrough, includes a cylindrical stator 7 containing a rotor 1 fixed to a rotatable shaft 3, which is carried by struts 6 and connected to a pointer 9 by a gear-train 8, the rotor being made of corrugated sheet-metal, the corrugations being radially orientated to obviate flexing of the rotor during operation thereof. The gas enters a casing surrounding the stator through an inlet 10 and flows towards the rotor through a plurality of tangentially-orientated slots 11, which render the gaps within the stator turbulent so as to effect rotation of the rotor, the gas being ejected axially through a passage 12. An axially-movable tube 13 can be used to reduce the effective size of the slots 11 when the rate of flow of the gas is substantially less than normal, reduction in said size being effective to increase the angular velocity of the gas within the stator. Alternatively, the tube is rotatable relative to the stator and furnished with slots such that it can be used to partially obturate the slots 11. A dial associated with the pointer 9 has two scales corresponding to the positions of the said tube when it is fully retracted and when it is partially obturating the slots 11, respectively. The rotor may be furnished with ribs, to effect stiffening thereof, instead of the corrugations; and the tube 13 may be both axially movable and rotatable.
GB1525165A 1965-04-09 1965-04-09 Rotary Flow-Meters Expired GB1153423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1525165A GB1153423A (en) 1965-04-09 1965-04-09 Rotary Flow-Meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1525165A GB1153423A (en) 1965-04-09 1965-04-09 Rotary Flow-Meters

Publications (1)

Publication Number Publication Date
GB1153423A true GB1153423A (en) 1969-05-29

Family

ID=10055750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1525165A Expired GB1153423A (en) 1965-04-09 1965-04-09 Rotary Flow-Meters

Country Status (1)

Country Link
GB (1) GB1153423A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029336A1 (en) * 1979-11-15 1981-05-27 Britax Vega Limited Improvements in or relating to flowmeters
CN115645691A (en) * 2022-12-08 2023-01-31 四川港通医疗设备集团股份有限公司 Oxygen generator with automatic flow control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029336A1 (en) * 1979-11-15 1981-05-27 Britax Vega Limited Improvements in or relating to flowmeters
CN115645691A (en) * 2022-12-08 2023-01-31 四川港通医疗设备集团股份有限公司 Oxygen generator with automatic flow control device
CN115645691B (en) * 2022-12-08 2023-03-10 四川港通医疗设备集团股份有限公司 Oxygenerator with flow automatic control device

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Legal Events

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