What is a variable frequency drive? Heating, ventilation, and air conditioning systems' air supply used to be constant volume into a space. Now a variable air volume control is being used to provide ...

[James Bruton] is experimenting is a series of interesting mechanical mechanisms, the latest being a CVT transmission system which uses a tilting sphere to get a variable speed output from a ...

An enterprising individual has shared a quick step-by-step guide showing how to convert an old Hard Disk Drive (HDD) into a small but useful variable speed disc ... 7,200 rpm motor in this 3.5 ...

As a hybrid technology that combines mechanical and electrical systems, electrohydraulic variable speed drives allow for motor speed adjustments to conserve energy and provide precise control over ...

The TECMate XL™ is a troubleshooting device for field-testing the GE ECM variable-speed motor. ECM motors are used in one of three modes: thermostat mode, variable-speed mode, and digital serial ...

The variable-speed capability of the switch is achieved by phase-controlling power delivered to the motor. Coupled with the addition of an externally mounted power semiconductor with an external h ...

COLUMBUS, Ind. — Cummins Inc. (NYSE: CMI) and Liberty Energy Inc. (NYSE: LBRT) (“Liberty”) today announced that the industry’s first natural gas variable speed, large displacement engine ...