Accumulator with full-flow filtering

a filtering and accumulator technology, applied in refrigeration machines, lighting and heating apparatus, refrigeration components, etc., can solve the problems of system efficiency loss, compressor damage, and inability to evaporate all liquid, and achieve the effect of reducing the effect of accumulator function, size, installation, cost or complexity, and being easy to manufactur
US20060196219A1Inactive Publication Date: 2006-09-07HALLA CLIMATE CONTROL CANADA
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HALLA CLIMATE CONTROL CANADA
Publication Date
2006-09-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

An accumulator for an air conditioning system is adapted to ensure that any fluid exiting the accumulator has been filtered. Fluid comprising gaseous refrigerant, liquid refrigerant and oil enters the accumulator. Ideally, only gaseous refrigerant and oil will exit the accumulator. According to one embodiment, gaseous refrigerant is substantially separated from liquid refrigerant. Oil is entrained within the gaseous refrigerant. The gaseous refrigerant with the entrained oil is filtered prior to exiting the accumulator. In another embodiment, gaseous refrigerant, which has been separated from the liquid refrigerant, is filtered before the oil is entrained with it. The oil is then separately filtered.
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Description

FIELD OF THE INVENTION

[0001] The invention relates to accumulators for air-conditioning systems and is particularly concerned with filters for accumulators. BACKGROUND OF THE INVENTION

[0002] Closed-loop refrigeration systems conventionally employ a compressor that is meant to draw in gaseous refrigerant at relatively low pressure and discharge hot refrigerant at relatively high pressure. The hot refrigerant condenses into liquid as it is cooled in a condenser. A small orifice, valve, tube, or other restriction divides the system into high and low-pressure sides. The liquid on the high-pressure side passes through the restriction and expands at least partly to gas, hence the general term for the restriction is “expansion device”. Some systems operate in “transcritical” mode, in that the hot refrigerant is merely cooled in the high side heat exchanger, now termed a “gas cooler”, and turns to gas plus liquid as it passes through the expansion device. At low heat loads, it is not poss...

Claims

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