Patent ID: 9133927
Filing Date: 2015-09-15
Classification: F16H,Y10T

Abstract:
1. A gear unit comprising: a first shaft and a second shaft for connecting to an external mechanical system, at least one gear stage between the first and second shafts, a channeling for directing lubrication fluid to flow through the at least one gear stage and bearings of the gear, a lubrication pump for pumping the lubrication fluid to the channeling so as to provide circulation lubrication, a lubrication fluid sump for containing the lubrication fluid so as to provide splash lubrication capable of lubricating the gear unit independently of operation of the circulation lubrication, a controllable valve system for emptying the lubrication fluid sump so as to deactivate the splash lubrication, and wherein the gear unit comprises at least one temperature sensor for measuring temperature of the lubrication fluid, and means for changing the lubrication of the gear unit between the circulation lubrication and the splash lubrication based on the temperature measurement of the lubrication fluid.