In hydraulic systems where the power consumption is large, losses components will lead to undesirably elevated. A highly elevated oil temperature is undesirable since the oil may deteriorate and mechanical and lubrication problems may arise if the viscosity becomes too low. In attempting to control the oil temperature, hydraulic systems are often equipped with a self-operating temperature controlling valve (SOTCV) controlled exchanger. The possibility of simulating fluid and component temperatures in oil te...