View Single Post
  #10  
Old October 23rd 06, 06:07 PM posted to rec.aviation.piloting,rec.aviation.owning
Robert M. Gary
external usenet poster
 
Posts: 2,767
Default Does Lycoming make any sense?


Capt.Doug wrote:
"Stan Prevost" wrote in message
I don't think so, at least not very much decrease. I think the fuel will
divide among the functioning injector nozzles. This is why the pressure
increases when one is blocked, the fuel is forced through a fewer number

of
orifices, causing a greater pressure drop across them.


If we are talking about the OEM 'flowmeter', how many transducers does it
have? It would need two to measure a pressure drop. It needs only one to
measure the pressure near the spider. If it has only one transducer near the
spider, and a nozzle clogs, the remaining nozzles won't flow enough to
relieve the increased pressure and the result will be an increased 'flow'
indication.


The fuel flow measurement does not take into account pressure. Its just
an inline wheel that spins around.

-Robert