Preventing shaft lobing in high-speed machines
Номер патента: GB1132983A
Опубликовано: 06-11-1968
Автор(ы): Lionel Haworth
Принадлежит: Rolls Royce PLC
Опубликовано: 06-11-1968
Автор(ы): Lionel Haworth
Принадлежит: Rolls Royce PLC
Реферат: 1,132,983. Shafts. ROLLS ROYCE Ltd. 18 March, 1966 [19 March, 1965], No. 11863/65. Heading F2U. Vibrations induced by a periodic force in a hollow shaft 13 rotating at high speed are reduced by rigid discs 20 engaging the interior of the shaft 13 and positioned at antinodes of the natural modes of vibration. As shown each disc 20 is slightly conical and has a flange 21 which abuts a shoulder 22 in the shaft whilst deformed portions of another flange 23 engage a recess in the shaft. In Fig. 5 (not shown), the discs are provided within a gas turbine engine shaft to prevent resonance at all normal operating conditions. Equations for determining the position of the discs are stated.
Shaft seal for use in high-speed turbomachinery
Номер патента: EP1568889A2. Автор: Giridhari L. Agrawal. Владелец: R and D Dynamics Corp. Дата публикации: 2005-08-31.