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).
Longitudinal section diagram of a Packard Standard Eight engine.
| Identifier | ExFiles\Box 25\3\ Scan369 | |
| Date | 16th November 1928 guessed | |
| outer casing has a drilled and ground hole in which a metering jet is inserted, this metering jet having some amount of clearance be- of the rotating vane by small drilled holes equipped with ball check valves which unseat only when there is a suction on its connecting chamber. Longitudinal sections through Packard Standard Eight engine | ||