Invention Grant
- Patent Title: Ultrasonic motor
- Patent Title (中): 超声波电机
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Application No.: US14000926Application Date: 2012-02-22
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Publication No.: US09385635B2Publication Date: 2016-07-05
- Inventor: Wladimir Wischnewskiy , Alexej Wischnewskij
- Applicant: Wladimir Wischnewskiy , Alexej Wischnewskij
- Applicant Address: DE Karlsruhe
- Assignee: Physik Instrumente (PI) GmbH & Co. KG
- Current Assignee: Physik Instrumente (PI) GmbH & Co. KG
- Current Assignee Address: DE Karlsruhe
- Agency: Pierce Atwood LLP
- Agent Kevin M. Farrell
- Priority: DE102011011992 20110222; DE102011087801 20111206
- International Application: PCT/DE2012/000011 WO 20120222
- International Announcement: WO2012/113394 WO 20120830
- Main IPC: H02N2/00
- IPC: H02N2/00 ; H01L41/09 ; H02N2/06 ; H02N2/02 ; H02N2/10

Abstract:
An ultrasonic motor is described. The ultrasonic motor includes a plurality of plate-shaped piezoelectric ultrasonic actuators. Each of the ultrasonic actuators includes at least one friction element allocated thereto. Each ultrasonic actuator or each of one or more pairs of ultrasonic actuators is assigned an element to be driven. The ultrasonic motor also includes a housing. The ultrasonic motor also includes an electric excitation device. The elements to be driven are movable independently of each other, and each ultrasonic actuator or each of the one or more pairs of ultrasonic actuators is arranged in a holder. The holders are pressed against each other by housing side covers. The friction elements on the ultrasonic actuators are pressed against a friction layer of the corresponding element to be driven by an elastic interlayer that is in contact with edge surfaces of the ultrasonic actuators that are arranged opposite the friction elements.
Public/Granted literature
- US20140001922A1 ULTRASONIC MOTOR Public/Granted day:2014-01-02
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