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For a porter governor, the following data is given: Mass of each ball = 5kg Mass on the sleeve = 20Kg Length of each arm = 20cm Ball path at life = 12 cm Path at maximum speed = 16 cm Calculate range of speed in rpm.

For a porter governor, the following data is given: Mass of each ball = 5kg Mass on the sleeve = 20Kg Length of each arm = 20cm Ball path at life = 12 cm Path at maximum speed = 16 cm Calculate range of speed in rpm. Correct Answer 25.9

h1 = 0.16m h2 = 0.12m N12 = ((m+M)/m) x895/h1= (25÷5)x895/0.16 = 27968 N1 = 167.2 rpm N22 = ((m+M)/m) x895/h2= (25÷5)x895/0.12 = 37291 N2 = 193.1 rpm therefore range = 25.9 rpm.

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