Patent · US Active

Control device

US11801725B2 · kind B2 · utility

1Cited by

8References

18Claims

0Family size

Assignee

HYDAC MOBILHYDRAULIK GMBH · DE

Inventors

Heinz-Peter Huth · Saarlouis, DE
Johannes Merscher · Heusweiler, DE

Key dates

Filing date	Feb 23, 2021
Grant date	Oct 31, 2023
Priority date	—
Expiry date	Feb 23, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60G2400/51
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A control device for an oscillating axle suspension, in particular a front axle suspension, includes at least of one hydraulic accumulator device (10), a suspension device (12) and a proportional valve (14) having a valve piston (26). The proportional valve (14) is connected to the accumulator and suspension devices (10, 12) via fluid ports (16, 18, 20, 22). The valve piston (26) is actuatable by an electric motor (28), is longitudinally guided in a valve housing (24) of the proportional valve (14) and controls the fluid ports (16, 18, 20, 22) such that, in at least one functional position of the valve piston (26), the axle oscillation is provided while the suspension is blocked and, in at least one further second functional position of the valve piston (26), the suspension is provided while the axle oscillation is blocked.

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