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).
Heavy engine breathing, crankcase vacuum, and options for piston testing.
| Identifier | ExFiles\Box 180\M2\M2.1\ img009 | |
| Date | 1st March 1927 | |
| To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} -3- E1/C24318 Contd. which will allow air to be pushed out from the crankcase, and will maintain a partial vacuum therein. The breathing on this engine will be very heavy indeed. From the point of view of fully testing out the pistons, we should be able to fit the ordinary type of breather but of larger capacity, to deal with the large amount of gas that will be travelling in and out. This could be used alternately with the little "blow-off" valve. E.{Mr Elliott - Chief Engineer} (Handwritten initials) | ||