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).
Detailed description of a differential gear and drive shaft assembly, including a fluid-filled reservoir and vaned rotor.
| Identifier | ExFiles\Box 147\4\ scan0159 | |
| Date | 13th January 1941 guessed | |
| resistance of the driven shaft the latter is caused to revolve in unison with said drive shaft. In a practical example, the fixed casing is preferably comprised of two complementary flanged sections, the annulus between the peripheral flange and central boss of each section being formed with fins or vanes radial to the transverse axis of said casing. The bosses of the complementary sections face each other, but are spaced apart to permit the mounting of the vaned rotor within the reservoir constituted by the abovementioned annuluses. In operation the reservoir is practically filled with fluid. Said rotor is integral with or disposed upon a sleeve extending through one of said bosses and coupled to the abovementioned differential gear as hereinafter described. The other boss is axially bored out to freely receive the drive shaft of the engine which shaft passes freely through the abovementioned sleeve to actuate the differential gear. On the inner extremity, the drive shaft is formed or fitted with a right angular arm extending an equivalent distance each side of said shaft and revolving with the latter to drive the differential gear as will now be described. Said arm has at each end a coaxially mounted thereon a bevel pinion, each in constant mesh with a pair of corresponding crown wheels. One crown wheel is keyed or otherwise secured to the inner end of the sleeve of the rotor abovementioned, while the other crown wheel is keyed to the driven shaft. The differential gear is housed within a box or casing attached to the adjacent complementary section of the fixed casing suitable lubrication devices and anti-friction bearings being included with the -2- | ||