Patent · US Active

Throttle point with a valve body with a changing diameter

US11739809B2 · kind B2 · utility

0Cited by

10References

17Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Jörg Rösseler · Ruppichteroth, DE
Aleksandar Knezevic · Eitorf, DE
Steffen Heyn · Niederwerrn, DE

Key dates

Filing date	Jul 14, 2021
Grant date	Aug 29, 2023
Priority date	—
Expiry date	Aug 11, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F9/3482
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A throttle point for a vibration damper, comprising a damper valve carrier with a circumferential annular groove, in which an annular valve body with a variable diameter is arranged. The annular valve body forms, with a guiding face for flowing damping medium, a throttle point, a throttle cross section of which decreases in the case of an increasing flow velocity of the damping medium within the throttle point. The circumferential annular groove forming a pressure chamber which is filled with damping medium. A radially outwardly directed actuating force acts on the valve body, wherein the pressure chamber is a constituent part of a hydraulic system which has a connector to at least one working space of the vibration damper and the hydraulic connection of which to the pressure chamber can be set.

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