Engine Cooling Valve Linear Actuation for Precise Coolant Flow

The patent replaces the mechanical thermostatic wax element with an electrically driven linear actuator system. The actuator is controlled by an electronic control unit that receives temperature signals from sensors, enabling precise electronic control of the closing element position. This substitution eliminates the hysteresis and delayed response inherent in wax elements while achieving accurate flow control through electronic actuation.

The patent substitutes the passive thermal response of wax elements with an active electronic control system. Temperature sensors continuously monitor the liquid temperature and transmit signals to an electronic control unit, which immediately actuates the linear actuator to adjust the valve position. This electronic system eliminates the thermal inertia and delayed response of wax elements, achieving rapid response times despite increased energy consumption from the actuator and control electronics.

The patent replaces simple mechanical valve structures with an electronically controlled actuation system. The linear actuator provides precise positional control of the closing element through electronic signaling from the control unit, enabling accurate flow regulation. While this increases manufacturing complexity compared to simple mechanical valves, it achieves superior flow control precision through electronic actuation and sensor feedback.

The patent replaces the slow, hysteresis-prone wax element system with an electronically controlled actuator that responds immediately to temperature sensor signals. The electronic control unit continuously monitors temperature and adjusts the valve position in real-time, enabling rapid engine warm-up by precisely controlling coolant flow. This substitution eliminates the delayed response of wax elements, significantly reducing warm-up time despite increased system complexity.