Wabco Westinghouse Fahrzeugbremsen Gmbh

Wabco Gmbh

Wabco Standard Gmbh

Zf Cv Systems Hannover Gmbh

Wolfgang Lichtenberg

Hartmut Rosendahl

Uwe Bensch

Peter Beier

Robert Otremba

Manfred Schult

Christian Wiehen

Karl-Heinz Hesse

Hartmut Schappler

Ingo Stumberg

Detlev Neuhaus

Stefan Klik

Otto Friederichs

Bodo Klein

Jens Gr&ouml;ger

Jens Willms

Dieter Steinfeld

Jens Gröger

Wolfgang Stehr

Joachim Abel

Christian Oeser

Detlef Neuhaus

Michael Muller

Petra Elze

Julian Waszkewitz

Bode Klein

A pressure relief system comprises a control system which includes a housing with a housing chamber in which electrical equipment is located, and a valve system having a pressure relief device. The housing chamber is connected via a connecting device (e.g., a pipe conduit) to the pressure relief device, thereby protecting the electrical equipment contained in the housing chamber from occurrence of overpressure.

Pressure relief system

A control system for a vehicle braking systems includes an electronic control system and a brake signal transmitter having at least one circuit actuatable by a driver of the vehicle. Each circuit of the brake signal transmitter transmits an electrical brake signal having a value which is dependent upon an actuating force and/or an actuating stroke supplied to the brake signal transmitter. The electronic control system emits at least one electrical brake actuating signal which is dependent upon the electrical brake signal transmitted by the brake signal transmitter. An electronics block which includes at least a portion of the electronic control system is provided. The brake signal transmitter and the electronics block are integrated into a combined component.

Control system for a vehicle braking system

A dual electromagnetically actuated valve device for controlling the connection between a fluid pressure source and a consumer facility, and for controlling the pressure relief function for the consumer facility, and for providing a highly sensitive adjustment of the consumer pressure. The device operates with a high flow rate when the pressure difference between inlet pressure and consumer pressure is great, but prevents an overshoot or undershoot of the consumer pressure. The subject invention makes it possible to provide a sensitive adjustment of the consumer pressure in any normal consumer pressure range. The invention controls the cross-sectional opening of a pilot control valve to be continuously adjustable by employing a first electromagnetic control valve which is responsive to a declining current dependent stroke characteristic, and a second electromagnetic control valve which is responsive to a rising current dependent stroke characteristic.

Electromagnetically actuated valve device

The invention relates to an analog non-contact distance sensor which includes a fixed stationary annular magnetized armature. The stationary armature member is provided with an air gap into which is disposed an element which is sensitive to a magnetic field. The moving portion is a rod-shaped magnetic core member which can be inserted into the annular armature member. Depending on the depth of insertion of the core member, the amount of diversion of the magnetic field from the air gap of the armature is controlled. Consequently, the magnetic sensing element emits an electrical signal which corresponds to the distance travelled by the movable core member.

Magnetic-type of analog distance sensor having a hall effect sensing

A pilot-controlled solenoid valve apparatus includes a valve housing having an entrance chamber, an exit chamber, and a discharge chamber formed therein. An inlet valve controls fluid pressure flow from the entrance chamber to the exit chamber while an outlet valve controls fluid pressure flow from an exit chamber to the discharge chamber which exhausts to atmosphere. The inlet and outlet valves each include respective membrane diaphragms which have control chambers disposed on one side; which control chambers are pressurized by means of respective inlet and outlet control valves. Disposed on each of the membrane diaphragms are annular symmetric bodies which each have a longitudinal bore formed therein to allow communication between the respective control chambers and the exit and discharge chambers when the respective control valves are opened. An inlet and an outlet solenoid valve arrangement controls operation of the respective inlet and outlet control valves. A valve anchor associated with each of the solenoid valves has formed on one side thereof, a pilot valve seat. Formed on the opposite side of the valve anchor is a control valve body, which by being formed integrally with the pilot valve body, allows simultaneous operation of the solenoid and control valve portions of the solenoid valve apparatus. A bias spring engages the valve anchor near the control valve body to urge the anchor and thus, the control valve body toward the annular symmetric body on which is formed the control valve seat, when the solenoid valve arrangement is not energized.

Pilot-operated solenoid valve apparatus

Growing community of inventors

Hannover, Germany

Wolfgang Lichtenberg