How Does a Power Window Regulator Work?
The window regulator in a car is the control that allows someone in a car to roll the window up or down. This function can be accomplished in one of two ways. In early model cars, the window in a car or truck was rolled up and down manually, by use of a turn-handle that connected to various gears within the door of the car. Now, however, it is far more common to see car and truck windows that operate with a switch or a button. These power window regulators operate under electrical power. Rather than using the arm-strength of the passenger to turn gears within the car’s door to open or close the window, the power window regulator uses a small motor. This motor, powered by electricity from the car’s battery, provides the necessary energy to turn the gears and raise or lower the window glass. The motor used to open and close the windows of a car uses a combination of gears to augment its strength. A long, spiral-shaped gear called a worm gear is connected to a number of spur gears, which
