Abstract: A system for controlling a temperature of a rotary machine having a hollow roller chain with ink vibratory rollers and a plate cylinders such as used in a printing head, the system comprising a heat transfer fluid, a device for cooling the heat transfer fluid, a closed loop conduit, a device for passing the heat transfer fluid through the ink vibratory rollers, a solenoid valve mounted on the conduit, the solenoid valve being either fully opened or fully closed, temperature sensors to sense the temperature of the ink vibratory rollers, and a reservoir for the heat transfer fluid. The solenoid valves being either fully opened or fully closed allows for quick and precise temperature adjustments in real-time within a very narrow range.

Abstract: A process temperature control system for a rotary processing machine involving one or more process fluids by using an external liquid coolant from a central source of heating and cooling applied to one, or more transmission train of rollers for the process fluids of the rotary machine to effectively control the process temperature of those process fluids in real time and to use these process fluids themselves as the means to achieve process temperature control for the whole rotary machine. One such rotary processing machine is a rotary printing press equipped with conventional lithography printing plates or waterless printing plates by using its hollowed ink roller train to receive internal coolant to effectively control the temperature of the ink to optimize its own process characteristics and to use this fluid (ink) itself as it moves through the lithographic process as a direct cooling/heating media to control other important lithographic process temperatures in real time.