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.
Patent No.:
Date of Patent:
Jan. 18, 2022
Filed:
Jul. 26, 2018
Applicant:
Hitachi Rail S.p.a., Naples, IT;
Inventors:
Assignee:
HITACHI RAIL S.P.A., Naples, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 5/24 (2006.01); B61C 3/00 (2006.01); H02K 9/06 (2006.01); H02K 5/20 (2006.01); H02K 11/33 (2016.01);
U.S. Cl.
CPC ...
H02K 5/24 (2013.01); B61C 3/00 (2013.01); H02K 5/20 (2013.01); H02K 9/06 (2013.01); H02K 11/33 (2016.01); H02K 2205/09 (2013.01);
Abstract
An electric motor assembly for railway drive. The motor assembly comprises: The draining device is provided with a silencer device for the cooling air flow. The silencer device comprise at least one straight channel to reduce the turbulent flow into a substantially laminar flow of the out-flowing ventilation and cooling air. Furthermore, the draining device comprises a scroll, which consists of two separate arched channels in order to avoid the formation of stationary vortices. The two arched channels communicate with one another, from the fluidic point of view, only in a common outlet area for the ventilation and cooling air.