GB825269A - Improvements in thermostatic regulator valves - Google Patents
Improvements in thermostatic regulator valvesInfo
- Publication number
- GB825269A GB825269A GB2961/58A GB296158A GB825269A GB 825269 A GB825269 A GB 825269A GB 2961/58 A GB2961/58 A GB 2961/58A GB 296158 A GB296158 A GB 296158A GB 825269 A GB825269 A GB 825269A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- diaphragm
- venturi
- capsule
- seat
- 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
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
- G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow
- G05D23/126—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow using a capillary tube
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
825,269. Fluid-pressure servomotor-control systems. LANDIS & GYR A.G. Jan. 29, 1958 [Feb. 7, 1957], No. 2961/58. Class 135. A thermostatic valve comprises a capsule 17 adjustable at 19 and connected at 18 to a thermal feeler for alternatively positioning two connected valves 21, 22 with respect to opposite ends of a valve seat 14 and controlling the leakoff of high pressure from a chamber 9 on one side of a diaphragm 7 supplied by a throttle 12 from the inlet 2 to a Venturi 10, a leak-off leading via 15 and 13 to the throat of the Venturi and a low-pressure chamber 8 beneath the diaphragm, the diaphragm actuating a valve 5 controlling heating or cooling medium flowing through the passage containing the Venturi. With heating medium flowing through the Venturi to a room heat-exchanger, a rise in room temperature makes the capsule 17 move the valve 21 towards its seat at top of the opening 14 so that diaphragm 7 descends and closes valve 5. When cooling medium flows, a bimetal strip 24 is cooled and snaps upwards whereby valve 21 is moved away from the opening 14 and valve 22 is moved to control the lower side of the opening whereby rise of temperature in the cooled space makes capsule 17 move valve 22 away from its seat whereby diaphragm 7 rises and opens valve 5. In a further embodiment the spring 27 loading valve 5 is replaced by a diaphragm loaded by inlet pressure and a spring-controlled lost-motion device is incorporated in the stem 20 to prevent the strip 24 damaging the diaphragm.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH825269X | 1957-02-07 | ||
CH1131381X | 1957-02-07 | ||
CH1193703X | 1957-02-07 | ||
CH563022X | 1957-02-07 | ||
CH347990T | 1959-01-14 | ||
CH872627X | 1959-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB825269A true GB825269A (en) | 1959-12-16 |
Family
ID=62529259
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2961/58A Expired GB825269A (en) | 1957-02-07 | 1958-01-29 | Improvements in thermostatic regulator valves |
GB938/60A Expired GB872627A (en) | 1957-02-07 | 1960-01-11 | Improvements in or relating to thermostatic regulator valves |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB938/60A Expired GB872627A (en) | 1957-02-07 | 1960-01-11 | Improvements in or relating to thermostatic regulator valves |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE563022A (en) |
CH (1) | CH347990A (en) |
DE (1) | DE1131381B (en) |
FR (1) | FR1193703A (en) |
GB (2) | GB825269A (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT188891B (en) * | 1955-07-08 | 1957-02-25 | Landis & Gyr Ag | Thermostatic regulator valve |
-
1957
- 1957-02-07 CH CH347990D patent/CH347990A/en unknown
- 1957-03-02 DE DEL27031A patent/DE1131381B/en active Pending
- 1957-12-02 FR FR1193703D patent/FR1193703A/en not_active Expired
- 1957-12-06 BE BE563022D patent/BE563022A/en unknown
-
1958
- 1958-01-29 GB GB2961/58A patent/GB825269A/en not_active Expired
-
1960
- 1960-01-11 GB GB938/60A patent/GB872627A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE563022A (en) | 1957-12-31 |
GB872627A (en) | 1961-07-12 |
DE1131381B (en) | 1962-06-14 |
FR1193703A (en) | 1959-11-04 |
CH347990A (en) | 1960-07-31 |
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