公开(公告)号：JP2000186575A

公开(公告)日：2000-07-04

申请号：JP32057699

申请日：1999-11-11

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SNYDER RYAN K ,  GIRGENTI ALEXANDER P ,  KEVIN G VAN DUNN ,  TIZIANI PETER C ,  AVIS THOMAS B ,  PORTELINHA ANTONIO J

IPC: F02C7/32

Abstract: PROBLEM TO BE SOLVED: To minimize the damage of a gear box housing and an auxiliary machine in a rotor unbalance state like the fan blade loss state. SOLUTION: A mounting part 60 to mount an auxiliary machine 50 on a gear box comprises a mounting plate 62 connected to the auxiliary machine 50; links 64 and 66 to connect a first end part to the mounting plate 62 through a grommet 74 having elasticity, and a bush; brackets 68 and 70 to interconnect the links 64 and 66 and an engine case. In a normal engine working state, the auxiliary machine 50 is insulated in vibration from the engine case. In a high rotor unbalance state like during a loss of a fan blade, the grommet 74 being an elastic member is squeezed, the auxiliary machine 50 is coupled to an engine case, a load on a connection part between the gear box and the auxiliary machine is minimized, and damage due to a rotor unbalance load is minimized.

公开(公告)号：JP2000177697A

公开(公告)日：2000-06-27

申请号：JP32492799

申请日：1999-11-16

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DELANO PETER G ,  GIRGENTI ALEXANDER P ,  CARLSON WILLIAM T ,  BARCZA WILLIAM K ,  RICHARD THOMAS G

IPC: B60K17/06 ,  B64D27/26 ,  B64D35/02 ,  B64D41/00 ,  F02C7/20 ,  F02C7/32 ,  F02C7/36

Abstract: PROBLEM TO BE SOLVED: To restrain a gear box from being adversely affected to the minimum even when a rotor is turned out to be in a very unstable condition. SOLUTION: This mounting part 60 includes a cross member 62 both the ends of which are mounted on an engine case, a free end 68 fixed to the cross member 62, and simultaneously mounted on a gear box 40, and alsoincludes a leg part 64 actually extended in the vertical direction in such a way as to be formed into a rough T-shape. The appropriate adjustment of a spring constant for the mounting part in this configuration thereby allows load to be transmitted to the gear box 40 from the engine case to be restrained to the minimum.

公开(公告)号：DE69930360T2

公开(公告)日：2006-08-03

申请号：DE69930360

申请日：1999-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SNYDER RYAN K ,  GIRGENTI ALEXANDER P ,  AVIS THOMAS B ,  VAN DUYN KEVEN G ,  TIZIANI PETER C ,  PORTELINHA ANTONIO J

IPC: F02C7/32 ,  F01D21/04

Abstract: A mount (9) for a gearbox accessory (50) for a gas turbine engine substantially isolates the accessory (50) from direct mechanical loading from the engine case (22) during normal engine operating conditions and couples the accessory (50) to the engine case (22) during high rotor imbalance conditions to minimize interface loads between the gearbox (40) and the accessory (50). By coupling the gearbox (40) to the accessory (50), the two are displaced substantially in unison, thereby minimizing interface stresses therebetween. Various construction details of the mount for the gearbox accessories (50) are disclosed.

公开(公告)号：DE69930360D1

公开(公告)日：2006-05-11

申请号：DE69930360

申请日：1999-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SNYDER RYAN K ,  GIRGENTI ALEXANDER P ,  AVIS THOMAS B ,  VAN DUYN KEVEN G ,  TIZIANI PETER C ,  PORTELINHA ANTONIO J

IPC: F02C7/32 ,  F01D21/04

Abstract: A mount (9) for a gearbox accessory (50) for a gas turbine engine substantially isolates the accessory (50) from direct mechanical loading from the engine case (22) during normal engine operating conditions and couples the accessory (50) to the engine case (22) during high rotor imbalance conditions to minimize interface loads between the gearbox (40) and the accessory (50). By coupling the gearbox (40) to the accessory (50), the two are displaced substantially in unison, thereby minimizing interface stresses therebetween. Various construction details of the mount for the gearbox accessories (50) are disclosed.

公开(公告)号：DE69924954T2

公开(公告)日：2005-09-29

申请号：DE69924954

申请日：1999-11-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DELANO PETER G ,  BARCZA WILLIAM K ,  GIRGENTI ALEXANDER P ,  RICHARD THOMAS G ,  CARSON WILLIAM T

IPC: B60K17/06 ,  B64D27/40 ,  B64D41/00 ,  F02C7/20 ,  F02C7/32 ,  F02C7/36 ,  F01D25/28

Abstract: A gearbox mounting arrangement for a gas turbine engine includes a controlled spring rate mount that has an appropriate stiffness level to minimize the transmission of loads from the engine case to the gearbox. The controlled spring rate mount 60 is generally T-shaped and includes a cross-member 62 that attaches at the ends thereof to spaced locations on the engine case and a substantially perpendicular leg 64 fixed to the cross-member and having a free end 68 that attaches to the gearbox. The cross-member 62 bends to accommodate the application of vertical loads from the engine case to the gearbox instead of transmitting the loads to the gearbox which would deform the gearbox housing during a high rotor imbalance event.

公开(公告)号：DE69924954D1

公开(公告)日：2005-06-02

申请号：DE69924954

申请日：1999-11-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DELANO PETER G ,  BARCZA WILLIAM K ,  GIRGENTI ALEXANDER P ,  RICHARD THOMAS G ,  CARSON WILLIAM T

IPC: B60K17/06 ,  B64D27/40 ,  B64D41/00 ,  F02C7/20 ,  F02C7/32 ,  F02C7/36 ,  F01D25/28

Abstract: A gearbox mounting arrangement for a gas turbine engine includes a controlled spring rate mount that has an appropriate stiffness level to minimize the transmission of loads from the engine case to the gearbox. The controlled spring rate mount 60 is generally T-shaped and includes a cross-member 62 that attaches at the ends thereof to spaced locations on the engine case and a substantially perpendicular leg 64 fixed to the cross-member and having a free end 68 that attaches to the gearbox. The cross-member 62 bends to accommodate the application of vertical loads from the engine case to the gearbox instead of transmitting the loads to the gearbox which would deform the gearbox housing during a high rotor imbalance event.