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US 12,760,944 B2Granted
Motor cooling using impingement jets created by perforated cooling jacket
AssigneeDanfoss A/S
InventorsTadeu Mendonca Fagundes, Jin Yan, Lin Xiang Sun
Life of this patent
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Abstract
A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a cooling jacket including a plurality of perforations configured to cause refrigerant flowing through the perforations to form impingement jets and further configured to direct the impingement jets onto a surface adjacent a stator. The refrigerant compressor may be used in a heating, ventilation, and air conditioning (HVAC) chiller system, for example.
Claims4
A method, comprising:
- impinging refrigerant on a surface adjacent a stator of a motor for a refrigerant compressor by causing the refrigerant to flow through a cooling jacket including a plurality of perforations arranged such that the refrigerant flows through the perforations in parallel, wherein the perforations are configured to cause the refrigerant flowing through the perforations to form impingement jets;
- and
- directing some of the refrigerant downstream of a first axial end of the stator by causing some of the refrigerant to flow, following impingement, along a substantially axially-straight path in a first axial direction past the first axial end of the stator, and directing other refrigerant downstream of a second axial end of the stator opposite the first axial end by causing the other refrigerant to flow, following impingement, along a substantially axially-straight path in a second axial direction opposite the first axial direction past the second axial end of the stator.
Dependencies are inferred from the claim text.