The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 11, 2021

Filed:

Aug. 28, 2018
Applicant:

Caterpillar Inc., Deerfield, IL (US);

Inventors:

Jonathan M. Baumann, Hanna City, IL (US);

Rodwan T. Adra, Peoria, IL (US);

Timothy J. Schlack, Washington, IL (US);

Gregory T. Austin, East Peoria, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 9/19 (2006.01); H02K 1/20 (2006.01); H02K 3/24 (2006.01); F04D 29/58 (2006.01); F04D 29/26 (2006.01); H02K 1/32 (2006.01);
U.S. Cl.
CPC ...
F04D 29/5806 (2013.01); F04D 29/26 (2013.01); H02K 1/20 (2013.01); H02K 1/32 (2013.01); H02K 9/19 (2013.01);
Abstract

A rotary electric machine includes a stator, a rotor, a plurality of coils, and a plurality of flow enhancement members. Each coil has a compound outer surface along major sections thereof with an insulating layer disposed therealong. The compound outer surfaces of each pair of adjacent coils define a channel extending along adjacent major sections of each adjacent pair of coils. One of the flow enhancement members is disposed within each channel between the adjacent major sections of each pair of adjacent coils, with each flow enhancement member defining a gap between the compound outer surface of one of the coils and the flow enhancement member through which cooling fluid may flow.


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