Air conditioner
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United States of America Patent
Stats
-
Nov 1, 2022
Grant Date -
Apr 2, 2020
app pub date -
Jan 11, 2018
filing date -
Mar 13, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An air conditioner including an outdoor unit having a compressor, an outdoor heat exchanger, a main expansion device, and a refrigerant pipe configured to connect the outdoor heat exchanger to the main expansion device; an indoor unit having an indoor heat exchanger; and a connection pipe configured to connect the outdoor unit to the indoor unit, wherein the air conditioner has refrigeration capacity of 2 kW to 7 kW, a R134a is used as the refrigerant, the refrigerant pipe is made of a ductile stainless steel material having a delta ferrite matrix structure of 1% or less on the basis of a grain area, and the refrigerant pipe includes a suction pipe that guides suction of a refrigerant into the compressor and has an outer diameter of 12.70 mm.
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Family
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