TURBOMACHINE Russian patent published in 2015 - IPC F01D11/18 

Abstract RU 2549922 C2

FIELD: machine building.

SUBSTANCE: turbomachine is operated under increased working temperature, with stationary and rotating components (12, 16) with a gap between them being provided to prevent contact. The gap acquires the first value in the machine standstill mode, and it takes the second value in the steady-state mode of the machine operation. The gap passes through the extreme value on the curve during the period of transition from the standstill to the steady-state mode due to the fact that different components rotate with different rotation speed and have different expansion factors. There provided are compensation units (20) with non-linear compensation mechanism to reduce or compensate the extreme gap value during the transition period. The compensation units exert maximal influence where the gap takes the extreme value.

EFFECT: higher efficiency.

12 cl, 7 dwg

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RU 2 549 922 C2

Authors

Shvedovich Jaroslav Leshek

Mozharov Aleksej

Irmish Stefan

Dates

2015-05-10Published

2012-05-23Filed