公开(公告)号：WO1996014494A2

公开(公告)日：1996-05-17

申请号：PCT/US1995013402

申请日：1995-10-23

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  SHARMA, Om, P. ,  STAUBACH, Joseph, Brent ,  STETSON, Gary

IPC: F01D05/14

CPC classification number: F01D5/20 ,  F01D5/141 ,  F01D5/145

Abstract: A rotor blade (24) for a gas turbine engine includes a bowed surface (43) on a tip region (40) of the suction side (32) thereof. The curvature of the bowed surface (43) progressively increases toward the tip (36) of the blade (24). The bowed surface (43) results in a reduction of tip leakage through a tip clearance (50) from the pressure side (30) to the suction side (32) of the blade (24) and reduces mixing loss due to tip leakage.

Abstract translation: 用于燃气涡轮发动机的转子叶片（24）包括在其吸力侧（32）的尖端区域（40）上的弯曲表面（43）。 弯曲表面（43）的曲率朝着刀片（24）的尖端（36）逐渐增加。 弯曲表面（43）导致通过尖端间隙（50）从叶片（24）的压力侧（30）到吸力侧（32）的尖端泄漏减少，并且减少由于尖端泄漏引起的混合损失。

公开(公告)号：EP0792410A1

公开(公告)日：1997-09-03

申请号：EP95938269.0

申请日：1995-10-23

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： SHARMA, Om, P. ,  STAUBACH, Joseph, Brent ,  STETSON, Gary

IPC: F01D5

CPC classification number: F01D5/20 ,  F01D5/141 ,  F01D5/145

Abstract: A rotor blade (24) for a gas turbine engine includes a bowed surface (43) on a tip region (40) of the suction side (32) thereof. The curvature of the bowed surface (43) progressively increases toward the tip (36) of the blade (24). The bowed surface (43) results in a reduction of tip leakage through a tip clearance (50) from the pressure side (30) to the suction side (32) of the blade (24) and reduces mixing loss due to tip leakage.

公开(公告)号：EP0792410B1

公开(公告)日：1999-01-20

申请号：EP95938269.8

申请日：1995-10-23

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： SHARMA, Om, P. ,  STAUBACH, Joseph, Brent ,  STETSON, Gary

IPC: F01D5/14

CPC classification number: F01D5/20 ,  F01D5/141 ,  F01D5/145

Abstract: A rotor blade (24) for a gas turbine engine includes a bowed surface (43) on a tip region (40) of the suction side (32) thereof. The curvature of the bowed surface (43) progressively increases toward the tip (36) of the blade (24). The bowed surface (43) results in a reduction of tip leakage through a tip clearance (50) from the pressure side (30) to the suction side (32) of the blade (24) and reduces mixing loss due to tip leakage.