초록 ▼

The present invention relates to an arrangement for the cooling of a component, in particular of the combustion chamber of a turbo machine, wherein at least one cooling duct (5) is provided between a wall (1) to be cooled and a plate-shaped element (2) spaced apart from the wall. The plate-shaped el

The present invention relates to an arrangement for the cooling of a component, in particular of the combustion chamber of a turbo machine, wherein at least one cooling duct (5) is provided between a wall (1) to be cooled and a plate-shaped element (2) spaced apart from the wall. The plate-shaped element (2) has a number of through openings (4) for a cooling medium and is arranged such that the distance to the wall (1) increases in the flow direction of the cooling medium through the cooling channel (5). The arrangement is characterised in that the size of the through openings (4) in the plate-shaped element (2) increases with increasing distance between the plate-shaped element (2) and the wall (1). In this way a homogeneous cooling over the length of the cooling channel is achieved with simple measures.

대표청구항 ▼

The present invention relates to an arrangement for the cooling of a component, in particular of the combustion chamber of a turbo machine, wherein at least one cooling duct (5) is provided between a wall (1) to be cooled and a plate-shaped element (2) spaced apart from the wall. The plate-shaped el

The present invention relates to an arrangement for the cooling of a component, in particular of the combustion chamber of a turbo machine, wherein at least one cooling duct (5) is provided between a wall (1) to be cooled and a plate-shaped element (2) spaced apart from the wall. The plate-shaped element (2) has a number of through openings (4) for a cooling medium and is arranged such that the distance to the wall (1) increases in the flow direction of the cooling medium through the cooling channel (5). The arrangement is characterised in that the size of the through openings (4) in the plate-shaped element (2) increases with increasing distance between the plate-shaped element (2) and the wall (1). In this way a homogeneous cooling over the length of the cooling channel is achieved with simple measures. roove. 5. The method of manufacturing a fuel inlet according to claim 1, further comprising the step of forming the larger diameter of the filling part offset from a diameter of the remainder of the pipe during the pipe expanding step. 6. The method of manufacturing a fuel inlet according to claim 5, further comprising the step of flaring an edge portion of the filling part of the inlet pipe to fold back an open end of the filling part of the fuel inlet. 7. The method of manufacturing a fuel inlet according to claim 3, further comprising the step of forming a seat as a first flat portion in the peripheral wall of the inlet pipe 2 by press working a portion of the inlet pipe. 8. The method of manufacturing a fuel inlet according to claim 7, further comprising the step of forming a second flat portion in the peripheral wall on an opposite side of the inlet pipe to that of the seat in order that the inlet pipe can be easily supported for projection welding of the breather tube in the seat. 9. The method of manufacturing a fuel inlet according to claim 8, further comprising the steps of inserting a substantially rectangular shaped electrode inside the inlet pipe to contact the first and second flat portions of the seat formed therein and positioning a second electrode circumscribing the open attachment end of the breather tube on an outer side of the flat portion of the seat and applying current between the electrodes to weld the breather tube to the seat. 10. The method of manufacturing a fuel inlet according to claim 4, further comprising the steps of providing a rough and a fine roller wherein the rough roller is initially moved along the groove and subsequently followed by the fine roller being moved along the groove to form the helical groove in the peripheral wall of the filling part. 11. The method of manufacturing a fuel inlet according to claim 10, further comprising the steps of supporting the rough and fine rollers on a rotator and circumferentially rotating the rotator about the inlet pipe which is held in a substantially fixed position with respect to the rotator. 12. The method of manufacturing a fuel inlet according to claim 11, further comprising the step of also providing the rotator with an axial movement substantially along a longitudinal axis defined by the inlet pipe and radially moving the rough and fine rollers to press against the peripheral wall of the inlet pipe to form the helical groove in the filling part of the inlet pipe. 13. The method of manufacturing a fuel inlet according to claim 1, further comprising the step of electrodepositing a coating material chosen from the group of an acrylic coating, an alkyd coating, a urethane coating, and an epoxy coating, all of which are provided in the form of one of a cationic aqueous solution and an emulsion. 14. A method of manufacturing a fuel inlet, the fuel inlet comprising an inlet pipe for conveying fuel into a fuel tank and a breather tube for venting air from the fuel tank toward an end of the inlet pipe when the fuel is filled into the fuel tank, the method comprising the steps of: providing a first stainless pipe for manufacturing the inlet pipe and a second stainless pipe for forming the breather tube; expanding an open end of the inlet pipe to form a filling part having a larger diameter than a remainder of the inlet pipe and forming the larger diameter of the filling part offset from a diameter of the remainder of the pipe; flaring an edge of the filling part to fold back the open end of the filling part of the fuel inlet; forming a helical groove on an outer surface of a peripheral wall of the filling part to produce a screw-thread on an inner surface of the peripheral wall of the filling part; welding the breather tube to the inlet pipe; and applying a cationic electrodeposition coating to the fuel inlet. 15. The method of manufacturing a fuel inlet according to claim 14, further comprising the step of forming the helical groove by inse