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. 14, 2020
Filed:
Mar. 20, 2017
Jtekt Corporation, Osaka-shi, Osaka, JP;
Yoshimichi Higashiyama, Kashihara, JP;
Masami Naka, Yamatokoriyama, JP;
Tsukasa Sakazaki, Kizugawa, JP;
JTEKT CORPORATION, Osaka-shi, JP;
Abstract
A control apparatus controls driving of an oil feeding unit. The oil feeding unit includes a piezoelectric body that deforms in response to a voltage applied thereto, and a reservoir to store lubricating oil. The capacity of the reservoir changes in accordance with deformation of the piezoelectric body so as to discharge lubricating oil from the oil feeding unit. The control apparatus includes N driving circuitstoconfigured to apply voltages to the piezoelectric body (where N is an integer equal to or greater than two). The N driving circuitstoare connected in parallel to the piezoelectric body. During oil feeding, the control apparatus uses a predetermined number of the driving circuits selected from the N driving circuits. The predetermined number is smaller than N.