SE8202840L - metering valve - Google Patents

metering valve

Info

Publication number
SE8202840L
SE8202840L SE8202840A SE8202840A SE8202840L SE 8202840 L SE8202840 L SE 8202840L SE 8202840 A SE8202840 A SE 8202840A SE 8202840 A SE8202840 A SE 8202840A SE 8202840 L SE8202840 L SE 8202840L
Authority
SE
Sweden
Prior art keywords
valve
transformer
gas
core
output voltage
Prior art date
Application number
SE8202840A
Other languages
Swedish (sv)
Other versions
SE454796B (en
Inventor
W F Everett
R C Valentine
Original Assignee
South Bend Controls Inc
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 South Bend Controls Inc filed Critical South Bend Controls Inc
Publication of SE8202840L publication Critical patent/SE8202840L/en
Publication of SE454796B publication Critical patent/SE454796B/en

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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • A61M16/203—Proportional
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F2007/1684—Armature position measurement using coils

Landscapes

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

Abstract

A metering valve which is particularly advantageous for use in gas mixing devices such as patient ventilators, to accurately control the volume and frequency of gas flow for each gas and to provide a feedback of the actual flow through the valve. A valve (82), actuated by solenoid (164) is connected to the core of a linear variable differential transformer (192). As the valve opens, the core (206) of the transformer (90) moves, causing a change in the output voltage from the transformer. The change in output voltage from the transformer can be interpreted by a microprocessor to discern the actual flow through the valve. Two or more of the metering valves can be used to accurately control the mixture ratios of two or more gases. <IMAGE>
SE8202840A 1981-05-11 1982-05-06 DOSAGE VALVE FOR EXHAUSTING A SELECTED GAS VOLUME AT SELECTED INTERVALS SE454796B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26255481A 1981-05-11 1981-05-11

Publications (2)

Publication Number Publication Date
SE8202840L true SE8202840L (en) 1982-11-12
SE454796B SE454796B (en) 1988-05-30

Family

ID=22997998

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8202840A SE454796B (en) 1981-05-11 1982-05-06 DOSAGE VALVE FOR EXHAUSTING A SELECTED GAS VOLUME AT SELECTED INTERVALS

Country Status (5)

Country Link
CA (1) CA1153893A (en)
DE (1) DE3211336A1 (en)
FR (1) FR2505442B1 (en)
GB (1) GB2099110A (en)
SE (1) SE454796B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602653A (en) * 1984-11-01 1986-07-29 Bear Medical Systems, Inc. Electronically-controlled gas blending system
DE8813817U1 (en) * 1988-11-04 1990-03-01 Hydac Technology GmbH, 6603 Sulzbach Monitored seat valve
US7464709B2 (en) 2005-06-08 2008-12-16 Norgren, Inc. Integrated regulator mount for a ventilator system
US7464710B2 (en) * 2005-06-08 2008-12-16 Norgren, Inc. Manifold assembly for a ventilator system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985333A (en) * 1975-09-02 1976-10-12 Spraying Systems Co. Solenoid valve
NL7707259A (en) * 1977-06-30 1979-01-03 Philips Nv RESPIRATOR.
DE2831312A1 (en) * 1978-07-17 1980-01-31 Draegerwerk Ag DEVICE FOR SUPPORTING BREATHING AND / OR ARTIFICIAL VENTILATION WITH HIGH-FREQUENCY VENTILATION

Also Published As

Publication number Publication date
SE454796B (en) 1988-05-30
FR2505442A1 (en) 1982-11-12
FR2505442B1 (en) 1986-08-01
CA1153893A (en) 1983-09-20
GB2099110A (en) 1982-12-01
DE3211336A1 (en) 1982-12-02

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