Passive cooling apparatus for cooling of immersion fluid and power conversion equipment including a shape-memory alloy heat engine and related systems
AssigneeEaton Intelligent Power Limited
InventorsAvadhoot Kittur, Donald Caulfield
Life of this patent
Estimating the term…
Abstract
A passive fluid cooling system is provided including an immersion cooling tank including a volume of fluid; and a shape memory alloy (SMA) heat engine, the SMA heat engine including a plurality of wheels and an SMA wire coupled to the plurality of wheels. A portion of the SMA wire is in contact with the volume of fluid and transitions from a relaxed state to a tightened state when a temperature of the volume of fluid exceeds a transformation temperature of the SMA wire. The tightening of the SMA wire causes the plurality of wheels to rotate and induce motion in the volume of fluid and causes the volume of fluid to decrease in temperature.
Claims20
A passive fluid cooling system, comprising:
- an immersion cooling tank including a volume of fluid;
- and
- a shape memory alloy (SMA) heat engine, the SMA heat engine including a plurality of wheels and an SMA wire coupled to the plurality of wheels,
- wherein a portion of the SMA wire is in contact with the volume of fluid and transitions from a relaxed state to a tightened state when a temperature of the volume of fluid exceeds a transformation temperature of the SMA wire;
- and
- wherein tightening of the SMA wire causes the plurality of wheels to rotate and induce motion in the volume of fluid and causes the volume of fluid to decrease in temperature.
A shape memory alloy (SMA) heat engine for use with a passive cooling system, the SMA heat engine comprising:
- a plurality of wheels and an SMA wire coupled to the plurality of wheels,
- wherein a portion of the SMA wire is in contact with a volume of fluid and transitions from a relaxed state to a tightened state when a temperature of the volume of fluid exceeds a transformation temperature of the SMA wire;
- and
- wherein tightening of the SMA wire causes the plurality of wheels to rotate and induce motion in the volume of fluid and causes the volume of fluid to decrease in temperature.
Dependencies are inferred from the claim text.