High pressure clearance control system for gas turbine engine

A gas turbine engine, comprising:

• a fan section;
• a compressor section, the compressor section having a low pressure compressor and a high pressure compressor;
• a combustor section;
• a turbine section;
• and
• wherein the high pressure compressor includes a clearance control system, the clearance control system comprising:
• a control valve fluidly coupled to a source of bleed air of the high pressure compressor, the control valve configured for movement between a first position and a second position;
• an insulated pipe fluidly coupled to the control valve;
• and
• wherein the control valve redirects a portion of the source of bleed air towards an inner case structure of the high pressure compressor and thereafter to the insulated pipe when the control valve is in the first position and wherein the source of bleed air is not redirected towards the inner case structure of the high pressure compressor and the insulated pipe when the control valve is in the second position, wherein the insulated pipe is located between the inner case structure and an outer case structure of the high pressure compressor.

A method of cooling a portion of a high pressure compressor of a gas turbine engine, comprising:

• fluidly coupling a control valve fluidly of a clearance control system to a source of bleed air of the high pressure compressor, the control valve configured for movement between a first position and a second position;
• fluidly coupling an insulated pipe to the control valve;
• and
• redirecting a portion of the source of bleed air towards an inner case structure of the high pressure compressor and thereafter the insulated pipe when the control valve is in the first position and wherein the source of bleed air is not redirected towards the inner case structure of the high pressure compressor and the insulated pipe when the control valve is in the second position, wherein the insulated pipe is located between the inner case structure and an outer case structure of the high pressure compressor.