Patent · US Active

Actuating device with dirt shielding

US11473632B2 · kind B2 · utility

0Cited by

5References

12Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Stephan Hahn · Witten, DE
Fabian Erb · Schweinfurt, DE
Matthias Diemer · Niederwerrn, DE

Key dates

Filing date	Sep 19, 2018
Grant date	Oct 18, 2022
Priority date	—
Expiry date	Jul 27, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2300/08
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An actuating device for a motor vehicle, including a housing and a multi-part working piston movable in relation to the housing. The multi-part working piston has a main piston and an adjusting piston, which pistons are formed in a manner movable axially with respect to each other to compensate for wear. A clamping device clamps the main piston and the adjusting piston in relation to each other in order to fix an operative length of the working piston. The main piston and the adjusting piston are partial pistons of the working piston. A shielding element for protecting the actuating device from dirt is arranged on the housing and a partial piston or on a first partial piston and a second partial piston or on an adjusting piston and on the clamping device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.