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Rolls Royce Goblin II numbered cutaway; the impeller of the centrifugal compressor is number 12. The very first jet engines used centrifugal compressors and they are still used on small turbojets and turbo shaft engines. The key component that makes a compressor centrifugal is the centrifugal impeller which contains a rotating set of blades.
Rolls-Royce based the 10-stage HP compressor on an 8-stage run in the RB401 in the mid 1970's followed by a 9-stage run in the RJ.500. The V.2500 would use 10 stages, with the first 4 with variable stators, giving a pressure ratio of 20:1. [4] A single-stage booster was also part of the original configuration.
The Allison Model 250, now known as the Rolls-Royce M250, (US military designations T63 and T703) is a highly successful turboshaft engine family, originally developed by the Allison Engine Company in the early 1960s. The Model 250 has been produced by Rolls-Royce since it acquired Allison in 1995.
The Clyde used a two-shaft design, with an axial compressor based on that of the Metrovick F.2 [4] [5] for the low-pressure section, and a single-sided centrifugal compressor scaled up from the Merlin 46 supercharger [6] as the high-pressure stage, both mounted on the HP shaft and driven by a single stage HP turbine. A single stage power ...
The system was also used under licence by other car manufacturers, notably Rolls-Royce (Silver Shadow), Bmw 5-Series e34 Touring, Maserati (Quattroporte II) and Peugeot. It was also used on Berliet trucks and has been used on Mercedes-Benz cars, where it is known as Active Body Control. [3]
Rolls-Royce Holdings plc is a British multinational aerospace and defence company incorporated in February 2011. The company owns Rolls-Royce, a business established in 1904 which today designs, manufactures and distributes power systems for aviation and other industries.
Spirit of Ecstasy, the bonnet mascot sculpture on Rolls-Royce cars. Rolls-Royce Motor Cars Limited was created as a wholly owned subsidiary of BMW in 1998 after BMW licensed the rights to the Rolls-Royce brand name and logo from Rolls-Royce Holdings plc, [6] and acquired the rights to the Spirit of Ecstasy and Rolls-Royce grille shape trademarks from Volkswagen AG.
At the behest of the UK government, Rolls-Royce thereupon assumed control of the W.2 project, with Frank Whittle and his small team at Power Jets acting in an advisory capacity. [2] Together, they ironed out the problems with the W.2 and finally put the engine into mass production as the 1,600 pounds-force (7.1 kN) thrust Rolls-Royce Welland.