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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).
Status report on single cylinder work and general research projects.

Identifier  ExFiles\Box 30\4\  Scan271
Date  5th September 1934 guessed
  
(6)
ITEM. DESIGN POSITION.
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SINGLE CYLINDER WORK AND GENERAL RESEARCH.
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Overhead inlet and side exhaust valve cylinder
head - 3¼" x 4¼" single cylinder unit. Completed.

Preliminary pistons for 8 litre aero engine. Abandoned.

Sleeve valve ball joint and crank investigations -
5" x 5½" sleeve valve engine. Completed.

3¼" x 3¼" ramp head for single cylinder unit. Abandoned.

Preliminary cylinder block 2-3 port arrangement - 5"
x 5½" sleeve valve engine. Nearing completion.

Direct injection single cylinder unit - Cylinder block,
liner and piston. Completed.

" " " " unit - Contact breaker
drive. Completed.

P.V.XII Single Cylinder unit. Ramp cylinder head. Completed.

P.V.XII Single Cylinder unit. Cylinder block and
piston. Completed.

P.V.XII Single Cylinder unit. Piping for independently
cooled ramp cylinder head. Completed.

P.V.XII Single cylinder unit - Layout of rocker
mechanism. Completed.

Sleeve valve port timing investigation. 5" bore engine. Completed.

Comparison of port areas. 5" bore engine. In hand.

Preliminary cross sectional arrangement. 5" x 5½" engine. In hand.

Bevel drive to sleeve actuating mechanism - 5" x 5½"
engine. Completed.
  
  


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