Patent ID: 7758298
Filing Date: 2010-07-20
Classification: F01D,F02C,F04D

Abstract:
1. A method for operation of a turbocompressor comprising a rotation speed (n) of the turbocompressor being increased, and with a position (VIGV) of a row of variable inlet guide vanes being varied while the rotation speed is being increased, wherein the row of inlet guide vanes is kept open at a nominally open position while the rotation speed is being increased to a first rotation speed (n 1 ), wherein the rotation speed (n) of the turbocompressor is increased further to a second rotation speed (n 2 ) and the row of inlet guide vanes is varied during this increase from the first rotation speed (n 1 ) to the second rotation speed (n 2 ), wherein their position reaches a nominally closed position at the latest at the second rotation speed (n 2 ), and wherein the rotation speed (n) of the turbocompressor is increased further with the row of inlet guide vanes closed.