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:
Jul. 02, 2019
Filed:
Nov. 29, 2016
Abb Schweiz Ag, Baden, CH;
ABB Schweiz AG, Baden, CH;
Abstract
The invention relates to a pod propulsion unit of a ship. The pod propulsion unit comprises a pod housing arranged at least partly below a hull of the ship, an electric propeller motor within a motor gondola of the pod housing, an annular gap between a rotor and a stator of the electric propeller motor, and gas channels extending through the rotor, a closed cooling gas circuit, and a fan for circulating gas in the closed cooling gas circuit. The closed cooling gas circuit comprising a feeding duct extending between the return duct and the first motor end face of the electrical propeller motor, and a return duct extending between the feeding duct and the opposite second motor end face of the electrical propeller motor.