Patent · US Active

Hydraulic drive for executing a linear movement

US10578227B2 · kind B2 · utility

2Cited by

4References

15Claims

0Family size

Assignee

Voith Patent GmbH · DE

Inventor

Armin Goll · Mulfingen, DE

Key dates

Filing date	Jul 5, 2016
Grant date	Mar 3, 2020
Priority date	—
Expiry date	Nov 6, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B2211/863
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulic drive for executing a linear movement includes a motor, a pump, a lifting cylinder having the one linearly movable piston and a cylinder housing with at least one first connection and at least one second connection, a spring arranged such that the piston can be extended or retracted when the spring is in the relaxed state, and at least one first valve with which the first connection and the second connection of the cylinder housing can be fluidly connected. At least one second valve connected in parallel with the first valve is further provided, wherein the first valve has a maximum volumetric throughflow which is greater than the maximum volumetric through-flow of the second valve.

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