Wabco Europe Bvba

Zf Cv Systems Europe Bv

Zf Cv Systems Global Gmbh

Przemyslaw Zak

Marek Repela

Johann Lucas

Ingo Jovers

Werner Dreyer

Andreas Thimm

Stefan Filter

Pawel Wysocki

Wojciech Zabieglo

Nosrat Moradi Dehdezi

An air valve assembly housing, in particular an air valve assembly, is for an air valve assembly of a commercial vehicle air suspension system. The air valve assembly housing includes an air exhaust chamber and an actuator chamber configured to accommodate a pneumatic actuator. The pneumatic actuator has a valve body that is configured to move between a closed position and an open position. The air valve assembly housing includes a fluid passageway that extends from the actuator chamber to the air exhaust chamber such that the actuator chamber and the air exhaust chamber are in fluid communication at least when the valve body is in the open position. A number of radially extending protrusions partially obstruct the fluid passageway.

Air valve assembly housing

An air suspension control system (ECAS, electronic controlled air suspension) () for a utility vehicle, such as a truck or the like, or for a passenger car, includes a main control unit () for operating the air suspension control system () and at least two auxiliary control units () connected to the main control unit () via a data link (). The auxiliary control units () each have at least one output () for actuating at least one actuator () which can be connected to the output (), in particular an adjustment drive () for a valve (). Furthermore, at least one function for generating control signals at the output () can be stored in the auxiliary control units (), and the main control unit () is adapted to call up and/or to parameterize at least the stored functions by transmitting commands via the data link ().

Air spring system and control

Assembly in a compressed air system of a vehicle provided with an air ride suspension, the assembly being configured to lift the vehicle body by filling at least one air spring, the solenoid valves being switchable in cooperation with an electronic control device, and the assembly including a pressure line for filling the air springs, and the pressure line including a first branch line connectable to the pressure line via a pilot-controlled solenoid valve for filling the air springs and including first supply pipes and pilot-controlled solenoid valves for each air spring as well as a second branch line for providing a control pressure which includes second supply pipes for the pilot-controlled solenoid valves, wherein the second branch line is connected to the pressure line via a check valve, the check valve providing a block position against venting or pressure drop in the second branch line.

Assembly in a compressed air system of a vehicle

A suspension control valve arrangement for a pneumatic suspension system of a commercial vehicle includes a supply port, a delivery port, an exhaust port, a service valve arrangement, and an operation control mechanism () for switching the service valve arrangement into one of the following normal operation modes of a normal operation status: a blocking position for a blocking mode for blocking an air supply from the supply port to the delivery port, a supply position for a supply mode for supplying air from the supply port to the delivery port, or an exhaust position for a normal exhaust mode for connecting the delivery port to the exhaust port. A dump-control device () in the housing () is configured for switching between the normal operation status and a quick-dump mode (IV), win which the delivery port is connected to the exhaust port by bypassing the service valve arrangement.

Suspension control valve arrangement for a pneumatic suspension system of a commercial vehicle

An air control valve () adapted to control an air flow (FA) for an air cushioning receptacle () in a motor vehicle () includes a valve seat (), a valve body (), and a valve passage element () with a passage inlet () on an inlet side () and a passage outlet () on an outlet side (). A coil spring () in contact with the valve body () and with a valve stop () on the outlet side () is adapted to exert a closing force (FC) to press the valve body () to the valve seat (). A damping body () is arranged in an inner spring space () of the coil spring () such that the damping body () radially extends in a winding space () between a first coil winding () and a second coil winding () of the coil spring ().

Air control valve and device for a cabin suspension system of a motor vehicle

A leveling valve () for discharging and supplying air from and to a plurality of utilization elements (), in particular pneumatic suspension bellows, includes a valve arrangement () for directing air between a source () of pressurized air, an exhaust port () and the utilization elements, a supply port () in fluid communication with the valve arrangement () and the source () of pressurized air, and an exhaust port () having an exhaust air channel (a) for discharging exhaust air. The exhaust port () includes at least one air-permeable damping element, which is at least partly positioned within the exhaust air channel (a).

Leveling valve for discharging and supplying fluid

A leveling valve () for discharging and supplying air from and to a plurality of utilization elements (), in particular pneumatic suspension bellows, includes a valve arrangement () for directing air between a source () of pressurized air, an exhaust port () and the utilization elements (), and a supply port () in fluid communication with the valve arrangement () and the source () of pressurized air. A check valve () is mounted upstream of the valve arrangement () and is configured to allow fluid flow from the supply port () towards the valve arrangement () and to block fluid flow from the valve arrangement () through the supply port ().

Growing community of inventors

Wroclaw, Poland

Przemyslaw Zak