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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).
Design of a supercharger for a 2-stroke commercial vehicle oil engine, seeking recommendations.

Identifier  ExFiles\Box 158\3\  scan0057
Date  11th March 1940
  
1345

Gr.{George Ratcliffe}

Rm.{William Robotham - Chief Engineer}8/ML.11.3.40.

SUPERCHARGER FOR COMMERCIAL VEHICLE OIL ENGINE.

We are at the present moment considering a design of a 2-stroke oil engine commercial vehicle unit. The predominating requirement of such a unit is a low fuel consumption.

We see that in a recent paper read in America, Mr. Jankey claims that with an exhaust-driven blower on a 4-stroke oil engine, output is better by 5 - 10% than if a mechanical blower is used. If this is true, surely the difference should be still more marked on a 2-stroke oil engine.

We should be glad to have your recommendations.

Rm.{William Robotham - Chief Engineer}
  
  


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