公开(公告)号：JPH06294330A

公开(公告)日：1994-10-21

申请号：JP33252493

申请日：1993-12-27

Applicant: ABB RESEARCH LTD

Inventor： YURUGEN HAUMAN ,  ARUFUREETO KUNEPUFURI ,  TOOMASU ZATSUTERUMAIAA ,  RUUDORUFU TORETSUSHIYU

IPC: F02C7/18 ,  F01P1/02 ,  F23R3/00 ,  F23R3/42 ,  F28F13/02

Abstract: PURPOSE: To conduct impingement cooling for a cooling surface by avoiding unfavorable lateral flow, and by evading preliminary heating of cooling air, in a type in which a cooling surface and a cover surface are disposed in parallel each other. CONSTITUTION: Trapezoid molding members 7 which are connected to one another via a cooling surface 5 in a direction orthogonal to a flow direction of cooling air between the cooling surface 5 forming an inside of a combustion chamber and a cover surface 6 disposed in parallel thereto and which are opened respectively in their narrow sides are arranged at a constant distance. The cooling air is introduced into a feed chamber through a supplying face 1 of the member 7 facing in the cover surface 6, and impinges on the cooling surface 5 through perforations 8. Heated air is intruded into a trapezoidal backflow passage 3 through a gap between overflow surfaces 2, but cooling action for air exiting from the neighboring members 7 is not impaired in this case. A cooling surface 4 is cooled impingingly thereby.