Patent · US Active

Discharge pressure scale and lifting-lowering device having a discharge pressure scale of this type

US10871177B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

HYDAC FLUIDTECHNIK GMBH · DE

Inventors

Philipp Hilzendegen · Weiskirchen, DE
Markus Bill · Eppelborn, DE
Maximilian Felix Hess · Riegelsberg, DE

Key dates

Filing date	Aug 31, 2017
Grant date	Dec 22, 2020
Priority date	—
Expiry date	Aug 31, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B2211/8613
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A discharge pressure scale (30) includes a valve housing (41) having a functional connector (A), a return flow connector (T) and a user connector (28). A valve piston (52) is guided such that it moves longitudinally against the effect of an energy accumulator (42), moving from a respective opening or regulating position, against a valve seat (94), into a closed position. The user connector (28) and return flow connectors (T) are separated from one another. The fluid pressure present at the user connector (28) can be guided onto a pressure-active surface (A1*) of the valve piston (52) by a pressure compensation device (70) in such a way that it moves into its respective opening or regulating position in a pressure-compensated manner due to the force of the energy accumulator (42).

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