Patent · US Active

Valve unit for modulating the pressure in a pneumatic brake system

US9963135B2 · kind B2 · utility

0Cited by

8References

14Claims

0Family size

Assignee

WABCO GmbH · DE

Inventors

Dirk Füllgrabe · Rethmar, DE
Stefan Knoke · Hannover, DE
Karsten Runge · Springe, DE
Andreas Teichmann · Altwarmbüchen, DE

Key dates

Filing date	Aug 6, 2015
Grant date	May 8, 2018
Priority date	—
Expiry date	Aug 6, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B13/0435
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention relates to a valve unit for modulating the pressure in a pneumatic brake system, comprising a brake pressure inlet, a brake pressure outlet, a vent outlet, a diaphragm inlet valve, a diaphragm outlet valve, and a pilot valve for each diaphragm valve, the pilot valves being arranged in an elongate valve housing (having a main housing and a housing cover. The inlet valve pilot valve and the outlet valve pilot valve are arranged substantially centrally above the diaphragms of the inlet valve and the outlet valve in the housing cover and with the actuation axes of the pilot valves running parallel to the parting plane, and the housing cover includes a central insert which has valve bores and control channels and into which the solenoids and the mechanical components of the pilot valves are inserted, the central insert being encapsulated with a plastic material.

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