公开(公告)号：DE4244302A1

公开(公告)日：1994-06-30

申请号：DE4244302

申请日：1992-12-28

Applicant: ABB RESEARCH LTD

Inventor： HAUMANN JUERGEN DR ,  KNOEPFLI ALFRED ,  SATTELMAYER THOMAS DR ,  TRESCH RUDOLF

IPC: F01P1/02 ,  F23R3/00 ,  F28F13/02 ,  F25D31/00 ,  F01P1/00 ,  F02C7/18

Abstract: The system has trapezium sections (7) arranged at a constant distance from the cooling surface (5). The side of the trapezium section facing the cooling surface is provided with at least one row of holes (8). A gap (4) of constant height to the cooling surface (5) is formed. The open sides of the trapezium (7), which lie opposite the cover surface (6), form the supply surfaces (1) for the cooling air.The open sides of the trapezium which lie opposite the cooling surface (5) form the overflow surfaces (2). The intermediate space between the trapeziums provided with holes, form the trapezium shaped flow back duct (3). The supply surface (1) is much larger than the cross section of a hole. The cross section of the flow back duct is very much larger than the overflow surface (2). This again is very much larger than the cross of the gap (4) between the cooling surface and the sides of trapeziums provided with holes. The trapeziums are arranged at right angles to the flow direction of the cooling air.

公开(公告)号：DE4244303A1

公开(公告)日：1994-06-30

申请号：DE4244303

申请日：1992-12-28

Applicant: ABB RESEARCH LTD

Inventor： HAUMANN JUERGEN DR ,  KNOEPFLI ALFRED ,  SATTELMAYER THOMAS DR ,  TRESCH RUDOLF

IPC: F01P1/02 ,  F28F13/02 ,  F25D31/00 ,  F01P1/00

Abstract: The system has two tubes (7) arranged in the flow direction of the cooling air one behind the other. Holes (8) are provided at the bottom of each tube. The end of the tube (7) seen in the flow direction is respectively tightly sealed.The design for the impact cooling can consist of trapezium sections arranged at right angles to the flow direction of the prim. cooling air. The trapeziums are connected with each other, and are respectively open at the small side of the trapezium. The side of the trapezium facing the cooling surface is provided with holes.

公开(公告)号：DE4244301C2

公开(公告)日：2001-09-13

申请号：DE4244301

申请日：1992-12-28

Applicant: ABB RESEARCH LTD

Inventor： HAUMANN JUERGEN ,  KNOEPFLI ALFRED ,  SATTELMAYER THOMAS ,  TRESCH RUDOLF

IPC: F01P1/02 ,  F28F13/02 ,  F23R3/42 ,  F02C7/18 ,  F15C1/08

公开(公告)号：DE4244301A1

公开(公告)日：1994-06-30

申请号：DE4244301

申请日：1992-12-28

Applicant: ABB RESEARCH LTD

Inventor： HAUMANN JUERGEN DR ,  KNOEPFLI ALFRED ,  SATTELMAYER THOMAS DR ,  TRESCH RUDOLF

IPC: F01P1/02 ,  F28F13/02 ,  F25D31/00 ,  F01P1/00

Abstract: The appts. has a cooling surface (5) and a cover surface (6) parallel to each other. Between them and at a constant distance from the cooling surface is a matrix of pipes (7) with rectangular cross-section. The pipe walls facing the cooling surface have series of holes (8) and the gap between these walls and the surface is smaller than that between the upper walls and the cover surface. The cooling flow of air from the pipes is downwards through the holes, up around the sides and in between the pipes, and then along the upper gap. Double-walled pipes may be used.