Internal clearing function for a refrigerant recovery/recharge machine
AssigneeSPX Corporation
InventorsWilliam Brown, Gary Murray
Life of this patent
Estimating the term…
Abstract
An apparatus and method providing a refrigeration servicing system that comprises a clean refrigerant source, a recovery circuit and a flushing circuit. The recovery circuit can be configured to recover refrigerant from a cooling system. After recovery cycle is completed, the flushing circuit that is coupled to the recovery circuit can flush clean refrigerant through the recovery circuit. A housing can be provided and configured to house the refrigerant source, the recovery circuit and the flushing circuit.
Claims20
A refrigeration servicing apparatus for a vehicle comprising:
- a clean refrigerant source;
- a recovery circuit configured to recover refrigerant from a cooling system;
- a flushing circuit coupled to the recovery circuit and the refrigerant source, the flushing circuit flushes clean refrigerant through the recovery circuit;
- a processor that controls the recovery and flushing circuits;
- and
- a housing configured to house the refrigerant source, the processor, the recovery circuit and the flushing circuit.
A refrigeration servicing unit for servicing a cooling system of a vehicle, comprising:
- refrigerant source means for providing clean refrigerant;
- recovery means for recovering refrigerant from the cooling system;
- flushing means in communication with the recovery means for flushing clean refrigerant through the recovery means;
- processor means for controlling the recovery and flushing means;
- and
- a housing means configured to house the refrigerant source means, the processor means, recovery means and the flushing means.
A method of flushing a refrigeration servicing unit comprising:
- sensing that hoses of a recovery circuit are disconnected from a cooling system of a vehicle;
- evacuating the hoses with a vacuum;
- and
- flushing the recovery circuit with a clean refrigerant.
Dependencies are inferred from the claim text.