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).
New design for a Bentley V induction manifold with a cast-in starter passage.
| Identifier | ExFiles\Box 99\1\ scan0050 | |
| Date | 25th May 1939 | |
| BY/NS.{Norman Scott} 408 DA.{Bernard Day - Chassis Design}5/G.25.5.39. c. Rm.{William Robotham - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} c. Rm{William Robotham - Chief Engineer}/GR.{George Ratcliffe} BENTLEY V.{VIENNA} INDUCTION MANIFOLD WITH CAST-IN STARTER PASSAGE. Please receive :- E.CD.1382 Induction Manifold with Cast-in Starter Passage. Bentley V.{VIENNA} This design is made in accordance with a request from Experimental Department Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}2/JH.12.5.39. to give improved distribution when starting. The small passage also acts as a balancing pipe, between the two main throttles. We have discussed the question of producing the small area cast passage with Mr. Walker of the Pattern Shop and he considers the design will suit Foundry requirements. The starter connecting pipe to carburetter follows the previous B.V. design as we consider the shape of this pipe in its present form is the best for distribution, as it eliminates any bias which would favour either front or rear cylinders. If this experiment is successful, we will apply the modification to the B.60 and Corniche induction pipes later. Will you please detail and instruct for the experiment as soon as possible. DA.{Bernard Day - Chassis Design} | ||