Patent ID: 9207006
Filing Date: 2015-12-08
Classification: B60H,F25B

Abstract:
1. A refrigerant recovery unit that accurately fills a refrigerant system with a refrigerant, said unit comprising: a storage vessel constructed and arranged to hold the refrigerant; a fluid connector in fluid communication with the storage vessel and configured to be connected to the refrigerant system to enable refrigerant to flow between the storage vessel and the refrigerant system; a temperature sensor configured to sense a temperature of the refrigerant in the storage vessel and an ambient temperature, the temperature sensor operatively connected to the storage vessel; a controller operatively connected to the temperature sensor to receive temperature data and to the fluid connector in order to control a flow of the refrigerant from the storage vessel to the refrigerant system in response to the data received from the temperature sensor; and a heating device operatively in communication with the controller and coupled to said storage vessel in order to condition the refrigerant, wherein the controller determines a temperature difference between the ambient temperature and the temperature of the refrigerant in the storage vessel, and wherein the controller controls the heating device to heat the refrigerant if the temperature difference is less than a predetermined level.