公开(公告)号：CA1113261A

公开(公告)日：1981-12-01

申请号：CA340680

申请日：1979-11-27

Applicant: UNITED TECHNOLOGIES CORP

Inventor： GRIFFIN JAMES G ,  SCHWARZ FREDERICK M

IPC: F01D11/24 ,  F01D25/12 ,  F02K11/02

Abstract: An active clearance control (ACC) for a turbofan engine is disclosed herein where the cross section of the external spray bars are fabricated in square or substantially square configurations.

公开(公告)号：GB2168760A

公开(公告)日：1986-06-25

申请号：GB8529998

申请日：1985-12-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SCHWARZ FREDERICK M ,  GRIFFIN JAMES G

IPC: F01D5/08 ,  F02C7/18

公开(公告)号：FR2574856A1

公开(公告)日：1986-06-20

申请号：FR8518500

申请日：1985-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SCHWARZ FREDERICK M ,  GRIFFIN JAMES G

IPC: F01D5/08 ,  F02C7/18 ,  F02C7/12

公开(公告)号：DE3542584A1

公开(公告)日：1986-06-19

申请号：DE3542584

申请日：1985-12-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SCHWARZ FREDERICK M ,  GRIFFIN JAMES G

IPC: F01D5/08 ,  F02C7/18

公开(公告)号：CA1180562A

公开(公告)日：1985-01-08

申请号：CA383559

申请日：1981-08-10

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SCHWARZ FREDERICK M ,  GRIFFIN JAMES G

IPC: F01D11/08 ,  F01D5/08 ,  F01D11/10 ,  F01D11/24 ,  F02K11/00

Abstract: A structure and method for providing cooling fluids from a compression section to a turbine section of an axially flow rotary machine is disclosed. Various construction details and steps of the method enable the machine to minimize the effect that unscheduled variations in the temperature of the cooling fluids have on operating clearances in the turbine section. These unscheduled variations may result from changes in ambient temperature and component deterioration. An internal cooling fluid from the discharge region of the rearmost compressor is used to modulate the flow of a second fluid impinged on the exterior of the outer case for controlling the clearance between an array of rotor blades and a coolable stator shroud spaced radially outwardly of the rotor blades. In one embodiment, a valve for modulating the flow of the second fluid has at least one thermostatic bimetallic spring for transducing a change in temperature into a displacement. The displacement changes the flow area Af between a valve head and a conical seat in the conduit for the second fluid through the valve.

公开(公告)号：CA1117023A

公开(公告)日：1982-01-26

申请号：CA336686

申请日：1979-09-28

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CHAPLIN GARY F ,  DETOLLA FRANCIS L ,  GRIFFIN JAMES G

IPC: F01D11/08 ,  F01D11/10 ,  F01D11/24 ,  F01D25/00

Abstract: OUTER AIR SEAL SUPPORT STRUCTURE A support structure for an outer air seal of a gas turbine engine is disclosed. Various construction details which improve the sealing effectiveness of the outer air seal are developed. The outer air seal is held in close proximity to the rotor blades by the circumferentially adjacent support segments.