Thermal actuators convert energy into motion without an external power source. They react to temperature changes and can be used in various industries, including aerospace, automotive, and agriculture. They come in different sizes and materials and are resistant to shock and vibration.
Actuators are simply devices used to convert energy into motion. A thermal actuator is a type of non-electric motor containing components such as a piston and a heat-sensitive material capable of producing linear motion in response to changes in temperature. These devices can be used for many applications; aerospace, automotive and agricultural industries widely use thermal actuator devices.
A thermal actuator is one of the few devices that does not require any external power source to produce motion. In a thermal actuator system, changes in temperature can be used to perform certain tasks such as release latches, operate switches, and open or close valves. These devices are very sensitive and can be used for applications that require activation even at very slight temperature changes.
The heat sensitive materials used in a thermal actuator react to temperature fluctuations, causing the actuator piston component to move. These materials are designed to expand as temperature increases, forcing a piston out of the actuator. When a thermal actuator is exposed to temperature drops, the heat sensitive materials within contract, allowing the device’s piston to retract.
Stroke refers to the distance a piston travels outward from an actuator. Many of the more common thermal actuators feature pistons that can extend between 0.015 inch (0.381 millimeter) and 0.500 inch (12.7 millimeter). Most thermal actuators are made to react to temperatures between 86 degrees Fahrenheit (30 degrees Celsius) and 572 degrees Fahrenheit (300 degrees Celsius).
Manufacturers produce thermal actuators in a wide range of sizes and configurations, making them ideal for many different applications. Many thermal actuators are designed for use in pressurized or vacuum environments, with gases or liquids. They can be constructed of durable, rugged materials such as brass, aluminum, or stainless steel, and feature custom mounting configurations. Thermal actuators are easily machined and can be designed to have any type of thread or valve end. A well-constructed thermal actuator is resistant to shock and vibration.
In the aerospace industry, thermal actuators are used in safety shutdown devices, fuel temperature control, and engine lubrication systems. This type of actuator is often used in the agricultural sector in livestock watering systems for frost protection and automatic ventilation systems in greenhouses. The automotive industry uses thermal actuators in transmission cooling, thermostat and oil temperature regulation applications.
Protect your devices with Threat Protection by NordVPN
