SE8202840L - metering valve - Google Patents
metering valveInfo
- 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
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>
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)
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)
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 |
-
1982
- 1982-03-04 CA CA000397634A patent/CA1153893A/en not_active Expired
- 1982-03-12 GB GB8207317A patent/GB2099110A/en not_active Withdrawn
- 1982-03-27 DE DE19823211336 patent/DE3211336A1/en not_active Ceased
- 1982-05-06 SE SE8202840A patent/SE454796B/en not_active IP Right Cessation
- 1982-05-06 FR FR8207871A patent/FR2505442B1/en not_active Expired
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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