Automated hose clearing after refrigerant charging method

Details Automated hose clearing after refrigerant charging method Automated hose clearing after refrigerant charging method

2008-09-09

2008-09-09

Ali, Mohammad M (Department: 3744)

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

Reexamination Certificate

active

11270838

ABSTRACT:
An automated hose clearing after refrigerant charge method and appropriate apparatus is provided. The method includes detecting a pressure differential between the interiors of a high and low pressure hose on an air conditioning charging unit, determining if a pressure differential exceeds a predetermined threshold and temporarily providing fluid communication between the interiors of the high and low pressure hoses.

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