Damper control valve for a turbomachine

A gas turbine engine, comprising:

• a rotary component rotatable about an axis of rotation;
• a first bearing operatively coupled with the rotary component;
• a first damper associated with the first bearing, the first damper defining a first chamber;
• a second bearing operatively coupled with the rotary component;
• a second damper associated with the second bearing, the second damper defining a second chamber;
• and
• a damper control valve having a valve casing defining a valve chamber, the valve chamber being in fluid communication with the first chamber of the first damper and being in selective fluid communication with the second chamber of the second damper, wherein the damper control valve has a valve plunger movable within the valve chamber between a first position in which working fluid flows to both the first chamber and the second chamber and a second position in which working fluid flows to the first chamber but not the second chamber.

A gas turbine engine, comprising:

• a rotary component rotatable about an axis of rotation;
• a bearing operatively coupled with the rotary component;
• a first damper associated with the bearing, the first damper defining a first chamber;
• a second damper associated with the bearing, the second damper defining a second chamber;
• a damper control valve having a valve casing defining a valve chamber, the valve chamber being in fluid communication with the first chamber of the first damper and being in selective fluid communication with the second chamber of the second damper, wherein the damper control valve has a valve plunger movable within the valve chamber between a first position in which working fluid flows through one or more first valve supply lines to both the first chamber and the second chamber and a second position in which working fluid flows through one or more second valve supply lines to the first chamber but not the second chamber.