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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).
Suggesting experiments to reduce oil consumption for the Peregrine engine.

Identifier  ExFiles\Box 169\4\  img245
Date  8th March 1933
  
mis.

RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}6/KT. 8.3.33.

PEREGRINE OIL CONSUMPTION.

We wish to do some experiments to reduce the oil consumption on this engine and suggest -

(1) .015 chamfer on the scraper ring, the groove being shallower to increase the unit pressure Hs.{Lord Ernest Hives - Chair}945.

(2) Chamfer the gas ring next above the scraper ring as shown on Hs.{Lord Ernest Hives - Chair}949.

(3) Wide groove ring like the one that has been successful on the Kestrel - Hs.{Lord Ernest Hives - Chair}947.

(4) Two scraper rings, the upper one to Hs.{Lord Ernest Hives - Chair}946 fitted to the existing piston E.100525 modified to Hs.{Lord Ernest Hives - Chair}948.

Will you please therefore prepare the necessary parts for these experiments, which will be carried out on the test bed.

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}
  
  


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