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).
Specification and price list for the H.V. Type Horizontal Controllable S.U. Jet Carburetter.
Identifier | ExFiles\Box 31\4\ Scan038 | |
Date | 1st October 1925 guessed | |
THE H.V. TYPE HORIZONTAL CONTROLLABLE S.U. JET CARBURETTER TECHNICAL DESCRIPTION ON this type of Carburetter the jet is set at a vertical position in the jet chamber, through which the passage of air is blocked by the interposition of the concentric piston, with which is incorporated the suction disc and the taper needle, the latter controlling the amount of fuel, the whole being controlled by the suction of the engine, forming a variable choke and fuel supply. The strength of the mixture can be verified by raising or lowering the jet by means of a control on the dashboard or steering wheel. The slow running setting is obtained by the jet adjusting nut. This feature obviates the necessity of altering the position of the taper needle in the piston, and can be carried out whilst the engine is running. The only part of the suction chamber mechanism which is in actual contact is the case hardened piston rod working in its guide, which overcomes any possibility of the suction piston sticking up. THE H.V. TYPE HORIZONTAL CONTROLLABLE JET S.U. CARBURETTER COMPLETE WITH DASHBOARD CONTROL Price List £ s. d.{John DeLooze - Company Secretary} 1¼" For 2-cyl. engine up to 90mm. bore } 5 0 0 " " 4-cyl. " " 70mm. " 1โ " " 4-cyl. " " 90mm. " } 6 5 0 " " 6-cyl. " " 70mm. " 1½" " 4-cyl. " " 100mm. " } 7 10 0 " " 6-cyl. " " 85mm. " 1โ " " 4-cyl. " " 110mm. " } 10 0 0 " " 6-cyl. " " 95mm. " SPECIAL SET, COMPLETE FOR MORRIS } 4 10 0 CARS When ordering, it is desirable that the following information be given :- 1. Make of car, horse power, and date. 2. Number of cylinders, bore and stroke. | ||