GB770547A - Improvements in or relating to pressure control mechanism suitable for pressurized aircraft cabins - Google Patents
Improvements in or relating to pressure control mechanism suitable for pressurized aircraft cabinsInfo
- Publication number
- GB770547A GB770547A GB22294/54A GB2229454A GB770547A GB 770547 A GB770547 A GB 770547A GB 22294/54 A GB22294/54 A GB 22294/54A GB 2229454 A GB2229454 A GB 2229454A GB 770547 A GB770547 A GB 770547A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- diaphragm
- cabin
- spring
- 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
- 230000000994 depressogenic effect Effects 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
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Safety Valves (AREA)
Abstract
770,547. Fluid-pressure servomotor-control systems. GARRETT CORPORATION. July 30, 1954 [Aug. 10, 1953], No. 22294/54. Class 135. An outlet valve 22 for a pressurized enclosure such as an aircraft cabin is actuated through a lever 46 and link 43 by a flexible diaphragm 34 which is controlled by a valve 65 itself actuated by a flexible diaphragm 58 which is controlled by a unit (not shown) of known kind incorporating means for obtaining a constant cabin pressure up to a certain altitude and for maintaining a differential between cabin and atmospheric pressures above that altitude. The left-hand side of the diaphragm 34 is vented to the low pressure side of the outlet valve 22 and loaded by a spring 50 tending to close the outlet valve. The other side of the diaphragm 34 receives pressure air under control of the valve 65 from a chamber 62 which is connected by a conduit 15 to the delivery side of the cabin supercharger and contains a relief valve 81 for maintaining a, constant pressure. A bleed 40 interconnects the two sides of the diaphragm 34. The diaphragm 58 is subject on its righthand side to cabin pressure and to the load of a spring 70 and on its other side to a pressure obtained from a bleed 80 and governed by the control unit which is connected to a conduit 17. To operate the valve 22 manually, a handle 100 is depressed against a spring 100a to engage a clutch 23b whereby rotation of the handle operates the valve. A valve 85 actuated by a cam 94 relieves pressure to the right of the diaphragm 34 to facilitate manual closing of the valve 22.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US770547XA | 1953-08-10 | 1953-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB770547A true GB770547A (en) | 1957-03-20 |
Family
ID=22135806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22294/54A Expired GB770547A (en) | 1953-08-10 | 1954-07-30 | Improvements in or relating to pressure control mechanism suitable for pressurized aircraft cabins |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB770547A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1216115B (en) * | 1959-09-04 | 1966-05-05 | Bendix Corp | Device for regulating the pressure in a space surrounding the human body or parts thereof |
DE1263516B (en) * | 1962-11-28 | 1968-03-14 | Bendix Corp | Device for controlling the pressure in a closed space enclosing the human body or parts thereof, e.g. B. in a pressure suit |
WO2005000676A1 (en) * | 2003-04-30 | 2005-01-06 | Honeywell International Inc. | Cabin pressure outflow control valve having non-linear flow control characteristics |
-
1954
- 1954-07-30 GB GB22294/54A patent/GB770547A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1216115B (en) * | 1959-09-04 | 1966-05-05 | Bendix Corp | Device for regulating the pressure in a space surrounding the human body or parts thereof |
DE1263516B (en) * | 1962-11-28 | 1968-03-14 | Bendix Corp | Device for controlling the pressure in a closed space enclosing the human body or parts thereof, e.g. B. in a pressure suit |
WO2005000676A1 (en) * | 2003-04-30 | 2005-01-06 | Honeywell International Inc. | Cabin pressure outflow control valve having non-linear flow control characteristics |
US6962324B2 (en) | 2003-04-30 | 2005-11-08 | Honeywell International, Inc. | Cabin pressure outflow control valve having non-linear flow control characteristics |
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