Piston Pumps TRIZ Cases
- Maintenance machine for refrigeration units
See how a reversible motor with dual freewheels drives both compressor and vacuum pump without
- Reversible-Motor Refrigerant Service Machine Without Clutch Shifting
A reversible motor and dual freewheels let one portable machine switch between refrigerant recovery and vacuum pumping without clutch shifting.
- Sales Tank Heat Trace Using a Dense Liquid Heating Layer
A dense, thermally conductive liquid layer around a heat trace improves sales tank heating even when sand settles at the bottom.