ABB Ltd

About: ABB Ltd is a company organization based out in Zurich, Switzerland. It is known for research contribution in the topics: Voltage & Signal. The organization has 6222 authors who have published 6852 publications receiving 83994 citations.

Thermally loaded blade for a turbomachine

Abstract: In a thermally loaded blade for a turbomachine, the front edge of such a blade is made from a ceramic material for providing better protection. The front edge has a shell-shaped form which covers at least one part of the head stage against which flow occurs. The connection between front edge and head stage is produced on the one side by a coupling-forming indentation and on the other side by an elastic element. The elastic element produces a retaining action at the location where it is placed and a frictional connection, having an effect on the indentation, on the other side of the blade. Cooling air bores in the head stage provide for a cooling effect on the ceramic front edge.

Automated bin picking system for randomly located industrial parts

Abstract: Bin picking has been a research topic for years because of the challenges in image processing, robot motion planning and tool system. However, much of the existing work is not applicable to most real world bin picking problems because they are too simplistic or not robust enough for industrial use. In this paper, we developed a robust random 3D bin picking system by integrating the vision system with the robotics system. The vision system identifies the location of candidate parts, then the robot system validates if one of the candidate parts is pickable; if a part is identified as pickable, then the robot will pick up this part and place it accurately in the right location. An ABB IRB2400 robot with an IRC5 controller was chosen for picking up the parts. A 3D vision system was used to locate the parts. Experimental results demonstrated that the system can successfully pick up randomly placed parts in an industrial setting. This system provides a practical and robust solution for the industrial applications that require 3D random bin picking.

Anti-gravity thermosyphon heat exchanger and a power module

Abstract: The thermosyphon heat exchanger (1) according to the invention consists of a set (2; 21, 22) of linear conduit elements (4.1 to 4.15) and a heat exchange plate (3) mounted in a heat receiving region on the conduit elements (4.1 to 4.15). The longitudinal axes of the conduit elements (4.1 to 4.15) extend in a first direction in a plane defined by the flat side of the heat exchange plate (3). The conduit elements (4.1 to 4.15) project above the heat receiving region in the first direction on a first side and an opposing second side such that the extension of the conduit elements (4.1 to 4.15) on each side of the heat exchange region is suitable for constituting a condensing region for condensing a refrigerant vaporized in the heat receiving region if the first direction is arranged vertically.

Cooled wall part

Abstract: In a cooled wall part having a plurality of separate convectively cooled longitudinally cooling ducts (2) running near the inner wall (1) and parallel thereto, adjacent longitudinal cooling ducts (2) being connected to one another in each case via intermediate ribs (3), there is provided at the downstream end of the longitudinal cooling ducts (2) a deflecting device (4) which is connected to at least one backflow cooling duct (6) which is arranged near the outer wall (5) in the wall part and from which a plurality of tubelets (7) extending to the inner wall (1) of the cooled wall part and arranged in the intermediate ribs (3) branch off. By means of this wall part, the cooling medium can be put to multiple use for cooling (convective, effusion, film cooling).

Blank separation method and apparatus

Abstract: It is known to utilize magnets to assist in separating individual blanks from a stack of blanks. The invention utilizes a pressurized fluid, for example pressurized air, to separate one blank from another. The pressurized air system is utilized in a combination with a pick up device which can pick up individual blanks which are separated from a stack with the assistance of the pressurized air system. Suction cup assemblies located, and providing lift, at the edges or corners of the blank can operate to assist in peeling upwards the edges or corners of the top blank on the stack. These edge or corner mounted suction cup assemblies may be actuated by reciprocadg air cylinders, and may work in conjunction with the pressurized air system.