Abstract: An assembly for the suction of dust generated by the friction of an end of a brush on a collector at a contact surface, including at least one suction device and a brush/brush holder assembly, the suction device defines an inner opening to receive the end of the assembly and allow a gaseous passage between the brush/brush holder assembly and the suction device. A gaseous chamber is defined by a tubular wall and extending according to a plane to form a closed ring, the ring defining the inner opening. A collection opening extends longitudinally over a part of the tubular wall intended to face the collector, the collection opening bordered by at least one lip extending from the gaseous chamber in the direction of the inner opening to form a narrow corridor.

Abstract: A combined cooling and abrasion particles removal system and method for providing cooling and removing abrasion particles in a contact region between a brush and a slip ring of an electromechanical machine, the system comprising a passage for accommodating the brush and having a front opening adapted to face the slip ring, at least one supply tube with an outlet for blowing a gaseous medium at least partially into a direction towards a free space adjacent to the front opening, and at least one suction tube with an inlet opening for sucking off the gaseous medium and the abrasion particles from the free space. In order to pick up abrasion particles and provide sufficient cooling, the free space merges with a vortex chamber for generating a vortex of the gaseous medium carrying the abrasion particles in operation of the system.

Abstract: A combined cooling and abrasion particles removal system and method for providing cooling and removing abrasion particles in a contact region between a brush and a slip ring of an electromechanical machine, the system comprising a passage for accommodating the brush and having a front opening adapted to face the slip ring, at least one supply tube with an outlet for blowing a gaseous medium at least partially into a direction towards a free space adjacent to the front opening, and at least one suction tube with an inlet opening for sucking off the gaseous medium and the abrasion particles from the free space. In order to pick up abrasion particles and provide sufficient cooling, the free space merges with a vortex chamber for generating a vortex of the gaseous medium carrying the abrasion particles in operation of the system.

Abstract: An abrasion removal system and method for removing abrasion from a brush of an electric machine, with a housing arranged around the space of the brush, a supply to blow a gaseous medium into the housing, and a suction system for intake of the abrasions out of the housing.