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Successful development of an induction pipe and proposing further experiments on a Marmon engine.


Identifier  ExFiles\Box 75\2\  scan0296
Date  1st February 1923
  
To R. {Sir Henry Royce} from Hs. {Lord Ernest Hives - Chair}
c. to CJ.
c. to E. {Mr Elliott - Chief Engineer}

X2758

Hs {Lord Ernest Hives - Chair} 6/LG2. 2. 23.

INDUCTION PIPES

X.1692 X.4227.
X.2758.

We have succeeded in making an induction pipe w ith 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 of 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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