GB1276943A - Improvements in or relating to ice formation warning devices - Google Patents

Improvements in or relating to ice formation warning devices

Info

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
Application number
GB1431270A
Inventor
Henry William Groves
Colin Carrodus Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hawker Siddeley Dynamics Ltd
Original Assignee
Hawker Siddeley Dynamics Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hawker Siddeley Dynamics Ltd filed Critical Hawker Siddeley Dynamics Ltd
Priority to GB1431270A priority Critical patent/GB1276943A/en
Priority to DE19712112857 priority patent/DE2112857C3/en
Priority to FR7110326A priority patent/FR2087827A5/fr
Publication of GB1276943A publication Critical patent/GB1276943A/en
Expired legal-status Critical Current

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)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Immunology (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Combustion & Propulsion (AREA)
  • Atmospheric Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Respiratory Apparatuses And Protective 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.
GB1431270A 1970-03-24 1970-03-24 Improvements in or relating to ice formation warning devices Expired GB1276943A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
FR2087827A5 (en) 1971-12-31
DE2112857B2 (en) 1978-06-22
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