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. 27, 2024
Filed:
Jul. 14, 2023
Daikin Industries, Ltd., Osaka, JP;
Akihiro Nakano, Osaka, JP;
Yoshinori Takayama, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A fan device includes a motor and a control unit. The motor has a variable number of revolutions. The motor includes a shaft supported by a bearing enclosing lubricant. The control unit drives the motor. The control unit executes, when continuously driving the motor at a first number of revolutions or less for a first time period, driving the motor at a second number of revolutions more than the first number of revolutions for a second time period shorter than the first time period. The first number of revolutions causes poor oil film formation of the lubricant in the bearing if the motor is driven for more than the first time period. The second number of revolutions causes oil film formation of the lubricant in the bearing if the motor is driven for the second time period.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile