Banjo Turbine Discharge (was Water Injection Thread)

[Clarence Wood]

  I have a friend in England who is into turbos.  Will ask him if he can dig up some information.

At 03:04 PM 1/5/99 -0800, you wrote:
>Clarence Wood wrote:
>> 
>> At 08:45 AM 1/5/99 -0700, you wrote:
>> (snip)
>> >I think the REAL unexplored gain is in (more efficient) pressure recovery
>> >from the Mach .75 velocity in the gas spiral at the turbine outlet, though.
>> >The circumferential component of the flow in that gas is distinctly greater
>> >than the axial component. Some way of straightening the helical flow out,
>> >and turning all (more) of that velocity back into static pressure would
>> >truly be a FREE increase in the pressure ratio across the turbine, with all
>> >of the performance improvements that that implies!!! Plus, I do not think
>> >that a device for doing it would take up all that much space! Also, no
>> >moving parts involved and decently low temps, so ALMOST as reliable as
>> >taxes!
>> >>
>> >Greg
>> 
>>   I was just reading about the "Banjo-type" turbine discharge, in Hugh MacInnes's Turbochargers.  On page 72 he states that Dennis Sevier, Chief Engineer of Bristol replaced an elbow, which cost power on acceleration and at top end, with the banjo-type fitting and found that it "worked at least as well as a straight exhaust".
>>   Does anybody know where a feller could get a banjo-type fitting?
>> IZCC #3426
>>  1982 280ZX Turbo GL
>>  1966 El Camino
>>  1982 Yamaha Maxim XJ-1101J Motorcycle
>>  1975 Honda CB750 SS (black engine)
>>  1986 Snapper Comet lawn mower
>> Clarence Wood
>> Software&Such...
>> clarencewood at centuryinter.net
>> Savannah, TN.
>Damn, Clarence, you beat me to that one.  This is something I'm very
>interested in too - any leads??
>
>Aaron
>
>ICQ # 27386985
>
>