ES372012A3 - Improvements in a self-vacuum rotor of your cooling gas and in the means of feeding this. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in a auto-vacuum rotor of your cooling gas and in the power supply gas of this, belonging to a dynamoelectric machine equipped with an external box in which hermetically contains cooling gas for the rotor, equipped with a stator in which the internal hollow rotates the rotor which, with its surface, defines an air chamber and has means in said box to recover and cool the gas returned by the rotor, characterized by the combination of the following Means that in one or more areas of the rotor surface define a plurality of cold gas inlet passages from the air chamber aspirated by the rotation of the rotor and connected with internal cooling passages of the interior of the rotor; Means that in one or more zones of the rotor surface define a plurality of gas outlet conduits lost their coldness connected with said internal cooling passages inside the rotor and discharging the gas in said air chamber; Means defining a plurality of radial first tubes located in a first zone of the inner surface of the core of the stator discharging cooling gas from said sealed box; Means defining a plurality of radial second tubes located in a second zone of the internal surface of the core of the stator to receive and remove from the air chamber the gas that passes to the hermetic box for its re-cooling, and A partially open ringed passage disposed in the air chamber between the gas inlet and outlet areas defining a slot for axial acceleration of a portion of the rotor coolant gas jet; said ringed passage is composed of two radial washers a complete one attached to the rotor and a partial one attached to the stator. (Machine-translation by Google Translate, not legally binding)