Zf Cv Systems Europe Bv

Wabco Gmbh

Wabco Europe Bvba

Zf Cv Systems Global Gmbh

Zf Cv Systems Hannover Gmbh

Karl-Heinz Riediger-Janisch

Andreas Teichmann

Reiner Hölscher

Thomas Müller

Ulrich Couppee

Gerhard Martini

Robert Otremba

Peter Beier

Hartmut Schappler

Ralph-Carsten Lülfing

Tobias Kortlang

Wilfried Menze

Juan Rovira-Rifaterra

Krzysztof Adamski

Dirk Müntefering

Lukasz Drelich

Pawel Swiatek

Leszek Toma

Paulina Kuncewicz

Vinoth Kumar Rangaraj

Olaf Bindseil

Jan Hörstmann

Sven Homann

Gerrit Glondajewski

Alexander Fabian

Petra Elze

Pawel Lesik

Jan Weinacht

Marek Smardz

Ingo Fuhrmann

Adam Lango

Heinz-Werner König

Hendrik Harting

Adrian Grzeskowiak

Prabhakar Nagalingam

Muthumanickam Karuppanan

Sundaramoorthy Thiyagarajan

Marcin Hladik

Wladyslaw Kluczkiewicz

Tomasz Lubicki

Bettina Martens

A trailer brake control module () for a towing vehicle () facilitating braking of a towed vehicle or trailer () includes a pressure supply port (P), a trailer control pressure port (P), a primary control port (P) for receiving either directly and/or indirectly a control brake pressure for operating the trailer brake control module (). The primary control port (P) receives the control brake pressure from a pneumatically operated pressure medium, a pneumatic control pressure line () provides alternative control brake pressure for operating the trailer brake control module (), wherein the pneumatic control pressure line () receives the alternative control brake pressure from an electronically operated pressure medium, and a relay valve () is activated using either the control brake pressure received at the primary control port (P), or the alternative control brake pressure from the pneumatic control pressure line ().

Trailer brake control module

A foot brake module of an electropneumatic brake system of a motor vehicle has at least two pneumatic brake circuits. The foot brake module is operated by a brake pedal and has a pneumatic section with a pneumatic brake control valve and an electrical section with an electrical switch and at least one electronic travel sensor. The electrical switch is activated in a contactless manner. The foot brake module may have two travel sensors that each have a separate power supply and are connected to different electronic control devices.

Foot brake module of an electropneumatic brake system of a motor vehicle

A pneumatic device () has at least one venting path () for venting the pneumatic device () in an outflow direction (R). The venting path () includes a first volume (), through which a flow can pass, a first compressed-air passage (), and a sealing mechanism (). The first compressed-air passage () pneumatically connects the first volume () to a pressurized part () of the pneumatic device (). The sealing mechanism () changes between a normal state (Z) and a sealing state (Z). In the normal state (Z) a flow can pass through the first compressed-air passage () both in the outflow direction (R) and in an oppositely directed inflow direction (R). In the sealing state (Z) a flow can pass through the first compressed-air passage () only in the outflow direction (R).

Pneumatic device with sealing means and method therefor

A foot brake valve (′) of a pneumatic brake system in a motor vehicle has an installation plate (′), on which a brake pedal () is pivotably mounted and to which a housing (′) of a control unit () is fastened. A spring-loaded plunger piston () in actuating contact with the brake pedal () is guided axially movably in an annular collar () projecting upward out of the installation plate (′). For fastening the housing (′) of the control unit () to the installation plate (′), the housing (′) has an intermediate flange () which is screw-connected to the main part of the housing (′) and has the annular collar (). The intermediate flange () is coaxially rotatably about a vertical central axis (), and is connectable in non-positively locking fashion to the installation plate (′) via a releasable clamping connection ().

Foot brake valve of an air brake system

A relay valve (') for a compressed-air system of a vehicle has a working pressure inlet, a working pressure outlet, a venting outlet and a controllable relay piston (). The relay piston () is axially movably guided and, at one axial end, has an annular, radially inner valve seat (). A sealing piston () is axially movably guided coaxially with respect to the relay piston (). The sealing piston () is pushed by a compression spring () toward the relay piston () and an annular, radially outer valve seat (), which is a part of a seat ring () fastened in an annular collar () of the housing bottom part (). The seat ring () is a deep-drawn component shaped as a cylindrical pot of a metallic material. The radially outer valve seat () is an axially protruding annular web with a gable-shaped axial cross section.

Relay valve for a compressed-air system

A control valve for applying a spring-loaded brake pressure to spring-loaded parts of a rear-axle wheel brake is pneumatically activated as a function of a parking-brake braking demand and a service-brake braking demand. A first control chamber is connected via a first control piston to a control arrangement in the control valve. During an adjustment of the first control chamber via the service-brake control pressure, the spring-loaded brake pressure at the working output is a function of the service-brake control pressure or of the parking-brake control pressure. The first control piston is connected to a third control chamber, wherein the pressure in the first control chamber acts on the first control piston in one direction, and the pressure in the third control chamber acts on the first control piston in the opposite direction. The first control chamber is selectively connectable to the third control chamber via a switchable bypass valve.

Control valve, electronically controllable brake system and method for controlling the electronically controllable brake system

A control valve () of a compressed air system of a vehicle has a control piston (), guided in an axially movable manner in a housing cylinder (), two pressure chambers () separated from one another by the control piston (), which is sealed by at least one sealing ring () arranged on the outer circumference of the control piston (). The sealing ring () is a radial sealing ring having an axial length which substantially corresponds to the axial thickness of the control piston (). The sealing ring () has, on each of the two axial edges thereof, one respective radially obliquely outwardly directed sealing lip () which is in contact with the inner wall () of the cylinder (), and that a plurality of guide members () distributed over the circumference and formed between the two sealing lips () on the sealing ring ().

Control valve of a compressed air system

A sound damper for compressed air systems of vehicles includes a housing, an insulator and at least one web. The housing has an air inlet and an air outlet. The insulator is located in the housing, and the web is located in the housing such that it protrudes at least partially into the insulator. Air that flows through the housing from the air inlet to the air outlet is conducted by the web into the insulator.

Sound damper for vehicle compressed air systems

Growing community of inventors

Hannover, Germany

Karl-Heinz Riediger-Janisch