GB1143007A - Pressure control valve - Google Patents
Pressure control valveInfo
- Publication number
- GB1143007A GB1143007A GB28238/66A GB2823866A GB1143007A GB 1143007 A GB1143007 A GB 1143007A GB 28238/66 A GB28238/66 A GB 28238/66A GB 2823866 A GB2823866 A GB 2823866A GB 1143007 A GB1143007 A GB 1143007A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- cabin
- relay
- valve member
- 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
- 244000273618 Sphenoclea zeylanica Species 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/02—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being pressurised
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
- G05D16/185—Control of fluid pressure with auxiliary non-electric power derived from an external source using membranes within the main valve
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Aviation & Aerospace Engineering (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Check Valves (AREA)
Abstract
1,143,007. Fluid-pressure servomotor systems. WESTLAND AIRCRAFT Ltd. June 21, 1967 [June 23, 1966], No.28238/66. Heading G3P. A valve for controlling flow through an opening includes a valve seat 3, a pressure chamber 18 comprising a movable valve member 10 having a flange 12 extending towards the valve seat, a flexible sealing element 16 connecting the valve member to a wall member 6 supported centrally within the valve member, and resilient means 17 urging the valve member in an axial direction relatively to the valve seat, the valve member being slidably supported in a ducted member 5. The valve member has a hollow stem 13 communicating with ducts 7, 8 in which the pressure may be regulated by a relay such as that shown at 19 and by altitude and differential pressure limiters 20, 21. In the preferred embodiment, the valve controls the pressure in an aircraft cabin and the relay is subjected to cabin pressure (Pc) and to a low-pressure (Pt) obtained from the throat of a Venturi which may form the outlet from the seat 3. Air flowing into the cabin through the Venturi causes the valve to move into operating position against the spring 17, subsequent operation being controlled by the differential pressure on the relay 19. The spring 17 may be arranged to close the valve if a pressure higher than that in the cabin is connected to the relay 19. A pair of elements or a single preformed element may replace the element 16 to provide a flexible annular chamber communicating with the cabin through a series of holes in the skirt of the valve. The pressure in chamber 18 may be obtained from a pump or from the cabin supply duct.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28238/66A GB1143007A (en) | 1966-06-23 | 1966-06-23 | Pressure control valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28238/66A GB1143007A (en) | 1966-06-23 | 1966-06-23 | Pressure control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1143007A true GB1143007A (en) | 1969-02-19 |
Family
ID=10272520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28238/66A Expired GB1143007A (en) | 1966-06-23 | 1966-06-23 | Pressure control valve |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1143007A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007045755A1 (en) * | 2007-09-25 | 2009-04-09 | Nord-Micro Ag & Co. Ohg | Exhaust valve for an aircraft |
-
1966
- 1966-06-23 GB GB28238/66A patent/GB1143007A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007045755A1 (en) * | 2007-09-25 | 2009-04-09 | Nord-Micro Ag & Co. Ohg | Exhaust valve for an aircraft |
US9022843B2 (en) | 2007-09-25 | 2015-05-05 | Nord-Micro Ag & Co. Ohg | Outlet valve for an airplane |
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