GB1276943A - Improvements in or relating to ice formation warning devices - Google Patents
Improvements in or relating to ice formation warning devicesInfo
- Publication number
- GB1276943A GB1276943A GB1431270A GB1431270A GB1276943A GB 1276943 A GB1276943 A GB 1276943A GB 1431270 A GB1431270 A GB 1431270A GB 1431270 A GB1431270 A GB 1431270A GB 1276943 A GB1276943 A GB 1276943A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grille
- icing
- water extractor
- flow
- aircraft
- 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
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
- G01N25/66—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point
- G01N25/70—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point by varying the temperature of the material, e.g. by compression, by expansion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/02—Detecting the presence of frost or condensate
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/14—Rainfall or precipitation gauges
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Atmospheric Sciences (AREA)
- Biochemistry (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
1276943 Air conditioning aircraft HAWKER SIDDELEY DYNAMICS Ltd 19 April 1971 [24 March 1970] 14312/70 Heading F4V [Also in Division G1] To prevent icing in a water extractor 12 in an aircraft air conditioning system, a by-pass flow taken from the main duct 11 via a line 18 is passed through a grille 22 maintained at a temperature lower than the temperature of the main duct 11 flow, e.g. 5‹ C. lower, by a thermoelectric cooling device, any build up of ice on the grille producing an increased pressure drop across the grille which is sensed by a differential pressure sensor 23. When icing of the grille occurs, a valve 19 is opened to inject warm air into the duct 11 so that the air flow through the water extractor does not become cold enough to cause icing. The water extractor comprises a coalescer 13, a baffle chamber 14 having a drain 15, and a pressure relief valve 16.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1431270A GB1276943A (en) | 1970-03-24 | 1970-03-24 | Improvements in or relating to ice formation warning devices |
DE19712112857 DE2112857C3 (en) | 1970-03-24 | 1971-03-17 | Air conditioning system |
FR7110326A FR2087827A5 (en) | 1970-03-24 | 1971-03-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1431270A GB1276943A (en) | 1970-03-24 | 1970-03-24 | Improvements in or relating to ice formation warning devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1276943A true GB1276943A (en) | 1972-06-07 |
Family
ID=10038910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1431270A Expired GB1276943A (en) | 1970-03-24 | 1970-03-24 | Improvements in or relating to ice formation warning devices |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2112857C3 (en) |
FR (1) | FR2087827A5 (en) |
GB (1) | GB1276943A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4484821A (en) * | 1981-07-01 | 1984-11-27 | Shell Oil Company | Method and apparatus for determining the no-flow temperature of a liquid |
CN112162004A (en) * | 2020-09-29 | 2021-01-01 | 上海城市水资源开发利用国家工程中心有限公司 | Device and method for testing anti-freezing performance of stainless steel |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1561979A (en) * | 1975-09-04 | 1980-03-05 | Hawker Siddeley Dynamics Ltd | Ice-formation warning devices |
US5050109A (en) * | 1989-12-19 | 1991-09-17 | The Boeing Company | Method and apparatus for measuring the humidity of ambient air surrounding an aircraft in flight |
-
1970
- 1970-03-24 GB GB1431270A patent/GB1276943A/en not_active Expired
-
1971
- 1971-03-17 DE DE19712112857 patent/DE2112857C3/en not_active Expired
- 1971-03-24 FR FR7110326A patent/FR2087827A5/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4484821A (en) * | 1981-07-01 | 1984-11-27 | Shell Oil Company | Method and apparatus for determining the no-flow temperature of a liquid |
CN112162004A (en) * | 2020-09-29 | 2021-01-01 | 上海城市水资源开发利用国家工程中心有限公司 | Device and method for testing anti-freezing performance of stainless steel |
Also Published As
Publication number | Publication date |
---|---|
DE2112857B2 (en) | 1978-06-22 |
FR2087827A5 (en) | 1971-12-31 |
DE2112857C3 (en) | 1979-02-22 |
DE2112857A1 (en) | 1971-11-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |