DEVICE FOR LIMITING OIL FLOW RATE THROUGH BEARING OF ROTOR OF TURBINE GENERATOR Russian patent published in 1997 - IPC

FIELD: electric mechanical engineering. SUBSTANCE: device has a valve that consists of a slide with a rod having a conical tip. The slide is positioned on the bottom of a hollow and is spring- loaded. The conical tip of the rod abuts the balls locked in the disks with ring projections. In normal operation of the turbine generator the spring on the bottom of the hollow is compressed with the slide due to pressing the cover of the bearing to the cone of the rod. In accident at a moment when detachable joint of the bearing is expanded with the conical tip by a value that only negligibly exceeds the height of the projections of the rod the spring shifts the balls laterally and allows the oil feed passageway to be shutoff with the slide. EFFECT: enhanced reliability. 1 dwg