carburetor icing


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carburetor icing

[′kär·bə‚red·ər ‚ī·siŋ]
(mechanical engineering)
The formation of ice in an engine carburetor as a consequence of expansive cooling and evaporation of gasoline.

carburetor icing

carburetor icingclick for a larger image
The most common form of engine icing, which is caused by a sudden drop in temperature resulting from vaporization of the fuel and adiabatic cooling following the pressure reduction as the air accelerates through the venturi of the carburetor. The ice gradually builds up and blocks the venturi, upsetting the fuel-air mixture and resulting in a loss of power.
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References in periodicals archive ?
The alerts include Engine Power Loss Due to Carburetor Icing and Proper Use of Fiber or Nylon Self-Locking Nuts.
Experts from the Air Accidents Investigation Branch (AAIB) said the loss of engine power was probably due to carburetor icing.
Mr Pitman said both he and Mr Claxton were well aware of the carburetor icing danger and although he didn't see Mr Claxton checking for it on the flight, he had been distracted by another plane and may not have seen him carrying out the procedure.
Only after we had dropped to 5,000 feet did we recognize carburetor icing, something we never had to worry about in Florida.
Now an official Air Accident Investigation Branch report into the incident has concluded that the aircraft suffered an in flight engine failure, probably as a result of carburetor icing.
The report says that Mr Colman attributed the engine problems to carburetor icing and said he felt that more frequent use of carburetor heat may have avoided the situation.
Last August, one of North Wing's trikes experienced carburetor icing and engine power dropped.