A venting cap for a solenoid valve for compressed-air systems includes a carrier element configured to be arranged on an outlet tube of the solenoid valve and a sealing element arranged on the carrier element. The sealing element is in the form of a cap which engages radially and axially over the carrier element and which has a coaxially extending circular rim. The circular rim has on its inner side, adjacent to a free axial end, at least one receiver for at least one radially outwardly projecting snap-in contour of a geometrically complementary form on the carrier element. The carrier element has a coaxially arranged hollow-cylindrical extension, which is configured to be fastened to the axial end of the outlet tube. The carrier element has a coaxial venting path connected to an exit opening via a labyrinthine sealing structure.

A spring brake actuator has a service brake with a service brake housing and a service brake working chamber located in the service brake housing. The service brake working chamber is confined by a diaphragm. A service brake piston movable along an actuator-longitudinal axis and abuts the diaphragm, which applies a brake force onto the service brake piston. A spring between the service brake piston and the service brake housing pushes the service brake piston against the direction of the brake force. A modulator valve unit communicates with the service brake working chamber and is configured to regulate the inlet and outlet of fluid into and out of the service brake working chamber. The modulator valve unit is integrated into the spring brake actuator and includes a controllable inlet valve communicating with the service brake working chamber and a controllable outlet valve communicating with the service brake working chamber.

A noise damper for a compressed-air system, for a brake system of a utility vehicle, including: a housing having an inlet channel for a compressed-air stream and with a chamber for accommodating sound-damping material, in which the inlet channel and the chamber are separated, perpendicularly with respect to the compressed-air stream, by a separating plate which is closed in a central region and which, in an outer peripheral region of the compressed-air stream, has multiple openings for introducing the compressed air directly into the chamber. Also described are a related pneumatic brake system and method.

Provided is a pneumatic system for a vehicle, in particular a commercial vehicle. The system comprises a compressor, an air dryer cartridge, and a purge valve. The purge valve is protected by a filter. The filter is arranged in a housing and covers an inlet of an air channel formed in the housing which connects the inlet and the purge valve.

An air dryer includes a supporting base, a drying agent container, and an outer cover. The supporting base includes an inlet for receiving compressed air to be subject to a drying process and an outlet for delivering the processed compressed air that has undergone the drying process. The drying agent container is a container supported on the supporting base, contains a drying agent in the interior, and enables the drying process to be performed by passing the compressed air from the inlet through the drying agent. The outer cover surrounds the outer side of the drying agent container on the supporting base and defines a chamber for storing the compressed air between itself and the drying agent container. The supporting base includes first and second mounting surfaces, which are oriented in different directions, and a plurality of inlets, which are oriented in different directions and receive the compressed air.

Disclosed is an acoustic attenuation device for an electromechanical device through which a gas stream passes which is capable of propagating acoustic waves. The device includes inlet ports and outlet ports for a gas stream, in particular for the purpose of releasing the gas stream into the atmosphere. The device includes a generally annular channel defining a substantially circular flow path for the gas stream about a main axis between the inlet and outlet ports, and a plurality of acoustic attenuator elements which are tuned to an attenuation resonance frequency with an associated attenuation frequency band and are distributed in series circularly along the channel so as to interact with the gas stream flowing in the channel, the acoustic attenuator elements being formed by cavities of quarter-wave resonators.

An air braking system for a vehicle can include an air compressor, a reservoir, a first air line, a brake hub, a second air line, a control valve, a release valve, and a third fluid line. The first line can place an outlet of the compressor in fluid communication with an inlet of the reservoir. The brake hub can have a chamber in fluid communication with the outlet of the reservoir via the second line. The control valve can selectively open and close the second air line. The release valve can be in fluid communication with the chamber and having an outlet. The third line can place the outlet of the release valve in fluid communication with an inlet of the compressor.

A pneumatic valve (1) includes a housing (6), a supply connection (8), a working connection (10) for providing working pressure (pB), an exhaust portion (12) for discharging pressurized air, an attachment portion (74), a valve member (24) and a venting guide (4). The venting guide (4) has a venting channel (108) and complementary connection elements (76) engaging the attachment portion (74), a spout (78), and a support projection (100). The support projection (100) is positioned adjacent to a contact region (102) of the housing (6) and configured to abut the contact region (102) to block tilting of the venting guide (4) relative to the housing (6). A vehicle (300) includes a brake system (200) having the pneumatic valve (1).

Method for venting a pneumatic system of a vehicle, pneumatic system and vehicle Method for venting a pneumatic system (1) of a vehicle, the pneumatic system (1) comprising an air compressor (4), a pneumatic circuit (2), an air pressure management system (6) in communication with the air compressor (4) and the pneumatic circuit (2), and a control unit, the method comprising: while pressure in the pneumatic circuit (1) is less than a cut-out pressure, supplying the pneumatic circuit (2) with compressed air from the air compressor (4) operated at an operating speed through the air pressure management system (6), once pressure in the pneumatic circuit (2) reaches the cut-out pressure, lowering pressure in the pneumatic circuit (2) to a target pressure, the air compressor (4) being operated at at least one deflating speed lower than the operating speed, the deflating speed being non null, after pressure in the pneumatic circuit (2) has reached the cut-out pressure, releasing compressed air in the air pressure management system (6) to the outside environment.

Silencer device and assemblies for connection to engines are disclosed. Exemplary silencer devices for connection to an air compressor inlet tube may include at least a first quarter wave silencer and a second quarter wave silencer, and a tube assembly comprising a first landing and a second landing, wherein the first quarter wave silencer extends from the first landing and the second quarter wave silencer extends from the second landing.