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US 2019/0101134 A1Published application
Rotary machine heat sink
AssigneeHamilton Sundstrand Corporation
InventorsCraig M. Beers, Christopher McAuliffe, Murtuza Lokhandwalla
Life of this patent
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Abstract
A heat sink that can be positioned around a rotating shaft includes a cylindrical body with a first end and a second end, a bore running through the body with a first opening at the first end of the body and a second opening at the second end of the body, fins extending radially outward from the body and running from the first end to the second end of the body, and channels defined between the fins and running from the first end to the second end of the body.
Claims18
A heat sink that can be positioned around a rotating shaft, the heat sink comprising:
- a cylindrical body with a first end and a second end;
- a bore running through the body with a first opening at the first end of the body and a second opening at the second end of the body;
- fins extending radially outward from the body and running from the first end to the second end of the body;
- and
- channels defined between the fins and the body and running from the first end to the second end of the body, wherein the channels define hollow air passages that are configured to allow cooling air to flow through them;
- wherein the body and the channels are configured to force the cooling air radially outward from the rotating shaft and into the channels so that the cooling air flows through the channels and along an inner surface of a bearing.
3 more elements
A rotary machine comprising:
- a shaft extending through the rotary machine;
- a bearing positioned around the shaft;
- and
- a heat sink mounted on the shaft between the bearing and the shaft, wherein the heat sink has a cylindrical body with fins extending radially outward from the body and running from a first end to a second end of the body, and channels between the fins and the body running from the first end to the second end of the body that are hollow air passages that are configured to allow cooling air to flow through them;
- wherein the body of the heat sink and the channels are configured to force the cooling air radially outward from the shaft and into the channels so that the cooling air flows through the channels and along an inner surface of the bearing.
2 more elements
Dependencies are inferred from the claim text.