GB740099A - Device for maintaining a constant static pressure in a duct for flowing gaseous medium - Google Patents
Device for maintaining a constant static pressure in a duct for flowing gaseous mediumInfo
- Publication number
- GB740099A GB740099A GB3917/54A GB391754A GB740099A GB 740099 A GB740099 A GB 740099A GB 3917/54 A GB3917/54 A GB 3917/54A GB 391754 A GB391754 A GB 391754A GB 740099 A GB740099 A GB 740099A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindle
- duct
- lever
- maintaining
- static pressure
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0173—Control of flow without auxiliary power using pivoting sensing element acting as a valve mounted within the flow-path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7784—Responsive to change in rate of fluid flow
- Y10T137/7787—Expansible chamber subject to differential pressures
- Y10T137/7788—Pressures across fixed choke
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7793—With opening bias [e.g., pressure regulator]
- Y10T137/7805—Through external pipe
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7793—With opening bias [e.g., pressure regulator]
- Y10T137/7831—With mechanical movement between actuator and valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18176—Crank, pitman, lever, and slide
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Measuring Volume Flow (AREA)
- Air-Flow Control Members (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
740,099. Valves. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Feb. 10, 1954 [Feb. 17, 1953], No. 3917/54. Class 135. A valve for maintaining a constant static pressure in a duct such as a ventilating duct comprises a curved valve plate 8 carried by arms 10, 12 fixed to a spindle 32 which is angularly movable by a flexible diaphragm 41 acting through a rod 24 guided by rollers 36a, 36b, a lever 17 pivoted at 16, and a link 22 connected to a lever 26 which is adjustably clamped to the spindle. Chambers 42, 45 on either side of the diaphragm are connected to two points in the system, e.g. to an air distributing duct and to a place to be air-conditioned. The pressure difference across the diaphragm is balanced by a spring 19 engageable with any one of a series of adjustment holes 20 in the lever 17. Alternatively, a weight may be used. An adjustable counterweight 27 is carried by an arm 29 clamped to the spindle 32. The spindle also carries a disc 25 which co-operates with a fixed pointer whereby the degree of opening of the valve can be observed through a window.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE2888948X | 1953-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB740099A true GB740099A (en) | 1955-11-09 |
Family
ID=20427688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3917/54A Expired GB740099A (en) | 1953-02-17 | 1954-02-10 | Device for maintaining a constant static pressure in a duct for flowing gaseous medium |
Country Status (5)
Country | Link |
---|---|
US (1) | US2888948A (en) |
CH (1) | CH320059A (en) |
FR (1) | FR1097676A (en) |
GB (1) | GB740099A (en) |
NL (1) | NL88155C (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2991937A (en) * | 1959-01-20 | 1961-07-11 | Trane Co | Air blender |
ES264920A1 (en) * | 1960-02-19 | 1961-07-16 | Svenska Fl Ktfabriken A B | Pressure regulator |
US3191615A (en) * | 1961-06-09 | 1965-06-29 | Allied Thermal Corp | Automatic fluid controller |
SE358296B (en) * | 1970-04-13 | 1973-07-30 | Siemens Elema Ab | |
US5450873A (en) * | 1988-04-07 | 1995-09-19 | Palmer; David W. | System for controlling flow through a process region |
ATE116748T1 (en) * | 1990-03-30 | 1995-01-15 | Koppens Automatic Fabrieken Bv | MULTIVARIABLE REGULATOR WITH AT LEAST FOUR MECHANICAL INTRODUCTIONS AND SYSTEM EQUIPPED WITH THE SAME. |
US5509449A (en) * | 1995-04-03 | 1996-04-23 | The United States Of America As Represented By The Secretary Of Agriculture | Control of fluids |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US190442A (en) * | 1877-05-08 | Improvement in automatic water-pipe pressure cut-offs | ||
US427516A (en) * | 1890-05-06 | Bocker | ||
US733757A (en) * | 1901-08-07 | 1903-07-14 | Vincent P Travers Jr | Valve-governing mechanism. |
US812626A (en) * | 1904-12-13 | 1906-02-13 | William L Wilson | Power-transmitting apparatus. |
US991641A (en) * | 1909-05-12 | 1911-05-09 | Pierre Plantinga | Device for controlling fluids. |
US1490654A (en) * | 1920-04-24 | 1924-04-15 | Thomas B Wylie | Maximum-demand fluid regulator |
US1390521A (en) * | 1921-02-07 | 1921-09-13 | Leo F Fay | Washing-machine |
US1656184A (en) * | 1924-12-20 | 1928-01-17 | Karl A Enz | Valve |
US1673041A (en) * | 1926-10-29 | 1928-06-12 | Builders Iron Foundry | Rate of flow controller |
US2242667A (en) * | 1940-05-22 | 1941-05-20 | Durabilt Steel Locker Co | Automatic air control for forced draft firing |
US2357341A (en) * | 1940-07-10 | 1944-09-05 | Builders Iron Foundry | Flow controller |
-
0
- NL NL88155D patent/NL88155C/xx active
-
1954
- 1954-02-10 GB GB3917/54A patent/GB740099A/en not_active Expired
- 1954-02-12 US US409978A patent/US2888948A/en not_active Expired - Lifetime
- 1954-02-15 FR FR1097676D patent/FR1097676A/en not_active Expired
- 1954-02-15 CH CH320059D patent/CH320059A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US2888948A (en) | 1959-06-02 |
CH320059A (en) | 1957-03-15 |
NL88155C (en) | 1900-01-01 |
FR1097676A (en) | 1955-07-08 |
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