PRESSURE VESSEL AND REFRIGERATION APPARATUS
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Dec 19, 2024
filing date -
Dec 19, 2024
priority date (Note) -
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Abstract
A pressure vessel provided on a refrigerant circuit, includes: a vessel body made of iron; an inlet pipe that causes a refrigerant to flow into the vessel body; and an outlet pipe that causes the refrigerant to flow out of the vessel body. One or both of the inlet pipe and the outlet pipe include: a stainless steel portion made of stainless steel; a copper portion made of a material whose main component is copper; and a brazed portion that connects the stainless steel portion and the copper portion. The copper portion is connected to the vessel body. The stainless steel portion includes a minor diameter portion having a smaller outer diameter than a major diameter portion of the stainless steel portion. An outer circumferential surface of the minor diameter portion is connected to an inner circumferential surface of the copper portion.
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