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Aviation History
1944
1944 - 2228.PDF
Advertisements FLIGHT NOVEMBER 2ND, 1944 &f five J<e>ffiA&? d^eeve-tw/ise t . r&. INCREASED ENGINE EFFICIENCY . . . This is one of a series of twelve advertisements prepared for re tention, and constitutes a simple story of sleeve-valve advantages. Previous copies are available on request to the Bristol Aeroplane Company Ltd., Bristol. 1 \ RISTOL " sleeve-valve engines prove that simplified design •*""^ increases efficiency. All complicated overhead rocker mechanism is eliminated ; therefore, valve maintenance is unneces sary. Timing is positive and valve bounce impossible. Larger effective valve areas are used and gas flow is less restricted. Turbulence is controlled, and whatever the engine speed, the motion of each sleeve remains smooth and constant. Experience shows that " Bristol" engines maintain their operational efficiency over exceptionally long periods without the need of constant attention. No wonder the single sleeve makes better engines possible ; and, no wonder " Bristol" engines power so many types of service and commercial aircraft. <~/&t&lt;fef6t. i~Sa<#u&i, C/t&i&cded, SLEEVE-VALVE ^V wed- 540 £ A*<wi&&be&lt;/'aMc/c&sv&bp/iec/£n& 4*ria/& ddeeve-tw/ve &n&J?te'
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