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2. Auto-defrost - Wikipedia

   en.wikipedia.org/wiki/Auto-defrost

   While this technique was originally applied to the refrigerator compartment, it was later used for freezer compartment as well. A combined refrigerator/freezer which applies self-defrosting to the refrigerator compartment only is usually called "partial frost free" or semi-automatic defrost (some brands call these "Auto Defrost" while Frigidaire referred to their semi-automatic models as ...

3. Refrigerator - Wikipedia

   en.wikipedia.org/wiki/Refrigerator

   Food in a refrigerator with its door open. A refrigerator, commonly shortened to fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. [1]

4. Damping torque - Wikipedia

   en.wikipedia.org/wiki/Damping_torque

   Damping torque is a physical process of controlling a system's movement through producing motion that opposes the natural oscillation of a system. Similar to friction, it only acts when a system is in motion, and is not present if the system is at rest. [2] Its primary purpose is to enable fast and accurate readings for an oscillating system.

5. Tuned mass damper - Wikipedia

   en.wikipedia.org/wiki/Tuned_mass_damper

   In order to reduce the maximum force on the motor mounts as the motor operates over a range of speeds, a smaller mass, m 2, is connected to m 1 by a spring and a damper, k 2 and c 2. F 1 is the effective force on the motor due to its operation. Response of the system excited by one unit of force, with (red) and without (blue) the 10% tuned mass ...

6. Damper (flow) - Wikipedia

   en.wikipedia.org/wiki/Damper_(flow)

   This damper can switch the electrical power to control additional "slave" dampers, minimizing the electrical load on the damper's control circuitry and power transformer. A zone damper (also known as a Volume Control Damper or VCD) is a specific type of damper used to control the flow of air in an HVAC heating or cooling system. In order to ...

7. Electrohydraulic servo valve - Wikipedia

   en.wikipedia.org/wiki/Electrohydraulic_servo_valve

   Furthermore, two-stage servo valves may be classified by the type of feedback used for the second stage; which may be spool position, load pressure, or load flow feedback. Most commonly, two-stage servo valves use position feedback; which may further be classified by direct feedback, force feedback, or spring centering.