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. 04, 2022
Filed:
Sep. 06, 2018
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Julia Klein, Friedrichshafen, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichishafen, DE;
Abstract
A parking lock includes a locking pawl () and an interlocking element () arranged on a connecting bar () to a selector lever (). During engagement of the parking lock, the selector lever () is rotated by a spring (). A hydraulically actuatable actuator () including two pistons (). A first piston () is pressurized in order to disengage the parking lock and axially displace the second piston () against a spring (). Axial movement of the second piston () rotates the selector lever () and vice versa. A detent device () of the actuator (), is actuatable by an electromagnet (). An emergency release device () is operatively connectable with the selector lever () so that the second piston () is axially displaceable by the selector lever () without displacing the first piston ().