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Successful induction pipe experiments and suggestions for further tests on Seagull and Marmon engines.


Identifier  WestWitteringFiles\J\February1923\  Scan30
Date  2nd February 1923
  
ORIGINAL.
To R. {Sir Henry Royce} from Hs. {Lord Ernest Hives - Chair}
c. to CJ.
c. to E. {Mr Elliott - Chief Engineer}

Hs {Lord Ernest Hives - Chair} 6/LG2.2.23.

INDUCTION PIPES. X1692 X2758 X4227

We have succeeded in making an induction pipe with the carburetter fitted on the exhaust side of the engine to equal the results obtained on the present standard pipe as regards distribution and power. At the high speeds we get 5 to 6% more power. We are sending a report on this pipe.

We suggest now that Seagull(Experimental EAC.1 aka Export chassis, Phantom I engine) inlet and exhaust passages have been arranged in a similar way to the Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) instead of separate induction inlets, it would be better if we transferred our experiments on induction pipes on to the Marmon engine. This engine has the inlet and exhaust ports arranged in a similar manner to the Seagull(Experimental EAC.1 aka Export chassis, Phantom I engine). The same cylinders have the common inlet ports but the exhaust starts on the outside ports. We shall shortly be running this engine on the Test Bench. We shall first of all try it with its present standard induction pipes and carburetter and then try a pipe as suggested for the Seagull(Experimental EAC.1 aka Export chassis, Phantom I engine).

Hs. {Lord Ernest Hives - Chair}
  
  
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).


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