| 摘要 |
An on-board refrigerant charging system for a vapor cycle environmental control system in an aircraft or the like. A pair of accumulation chambers are provided for holding two different refrigerant components, each chamber including an outlet. A selectively operable valve is operatively associated with each chamber outlet. An inlet is provided to the vapor cycle environmental control system. A unitary dual-vaned pump is in fluid communication with the valves and the inlet to the environmental control system. A control senses refrigerant loss and the component mixture in the control system, and actuates the pumps to replace the refrigerant loss and operates the valves according to the desired component mixture charge.
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