Oil return management in a HVAC system

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United States of America Patent

PATENT NO 9638445
APP PUB NO 20160069598A1
SERIAL NO

14888854

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods, systems, and apparatuses are described to help manage oil return such as in a chiller system of a HVAC system. A refrigerant/oil mixture can be directed out of the evaporator into an oil return heat exchanger that is configured to help vaporize a refrigerant portion of the refrigerant/oil mixture. Superheat refrigerant vapor can be directed from a condenser into the oil return heat exchanger as the heat energy to vaporize the refrigerant portion in the refrigerant/oil mixture. The oil return heat exchanger can be positioned lower than the evaporator so that gravity can help the refrigerant/oil mixture to flow into the oil return heat exchanger.

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Patent Owner(s)

Patent OwnerAddress
TRANE INTERNATIONAL INC800-E BEATY STREET DAVIDSON NC 28036
TRANE AIR CONDITIONING SYSTEMS (CHINA) CO LTD215400 NO 88 SUZHOU EAST ROAD TAICANG CITY SUZHOU CITY JIANGSU PROVINCE SUZHOU CITY JIANGSU PROVINCE 215400

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Wenyong Shanghai, CN 10 21
Lv, Zhenhai Shanghai, CN 2 3
Zhang, Limin Shanghai, CN 71 162

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