Q: I have a 1995 Ford Windstar, 3.8-liter engine, with 99,500 miles. Now that the weather is turning colder, I’ve noticed my defroster isn’t working. The blower works, but the air comes out through ...

Many power plants regulate fan airflow with mechanical controls, such as dampers. In some applications using fixed-speed motors in combination with dampers may not be the most energy efficient option.

Ventilation is perhaps the single most important element of an HVAC system. It influences air quality and energy efficiency, and proper ventilation controls odors, dilutes gases (such as carbon ...

Suspension damping technology has remained relatively unchanged for the past 100 years. Conventional dampers (known to the layperson as shock absorbers) work by forcing a piston through a chamber ...