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:
Aug. 07, 2018
Filed:
Apr. 07, 2017
Aisan Kogyo Kabushiki Kaisha, Obu-shi, JP;
AISAN KOGYO KABUSHIKI KAISHA, Obu-Shi, JP;
Abstract
A vortex pump may include a motor portion and a pump portion. The pump portion includes an impeller that rotates integrally with an output shaft of a motor. The motor portion and the pump portion are separated by a separation wall. A vane-groove region including vane grooves is provided on a surface of the impeller facing the separation wall. The separation wall includes a facing groove facing the vane-groove region and extending along a rotation direction of the impeller. A communication hole that communicates the motor portion and the pump portion is provided on the facing groove. The communication hole extends in a direction along swirling flow formed by the vane grooves and the facing groove when the vortex pump is operating.