SISTEMA PER PROTEGGERE UN MOTORE DAL SURRISCALDAMENTO,MEDIANTE UNA RIDUZIONE AUTOMATICA DELLA POTENZA DELLO STESSO

摘要

The present invention relates to a control system for use with an internal combustion engine connected to a load through a variable speed transmission. The instant system protects the engine and conserves fuel by automatically reducing the engine horse power when it is appropriate. The system includes a fuel valve connected to a source of fuel for affecting the rate of fuel delivered to the internal combustion engine for determining the power output of the engine. A temperature responsive control is connected to a portion of the internal combustion engine and is connected to the fuel valve to affect the fuel valve for regulating the rate of fuel delivered to the engine when the temperature of coolant in the internal combustion engine reaches a predetermined value. A speed responsive control is connected to a portion of a power train connected to the output of the engine and is connected to the fuel valve in series with the temperature responsive control. The speed responsive control also regulates the fuel valve to control the rate of fuel delivered to the engine when the power train is in a selected attitude thereby, allowing the maximum amount of power output from the engine only when the temperature of the coolant is in a selected range and the transmission is in a selected attitude.