A method and system of predicting a replacement time of a cartridge for an air processing unit (APU) of a vehicle, include: checking an internal pressure of an air tank by a controller when an engine of the vehicle is started; calculating and accumulating a passing flow amount through the cartridge of the APU using a pressure change due to filling the air tank with air; and determining that the replacement time of the cartridge has been reached when an accumulated total passing flow amount exceeds a predetermined value. Therefore, it is possible to predict the replacement time of the cartridge by calculating an air flow amount based on the pressure change of the air tank.

The present invention relates to a device designed to quickly and efficiently unfreeze a frozen tractor trailer brake system. The device features a junction and T-valve assembly having a removable top plug, a quick connect fitting attached to both a first end of the junction and a tractor emergency brake line, and an outlet pipe attached to both a second end of the junction and the trailer glad hand. A de-icing solution may be introduced into an opening in the T-valve and forced through the trailer brake system by utilizing the air pressure from the tractor's emergency air brake, wherein the de-icing solution quickly and efficiently thaws the frozen brake system.

A housing for a control device, including: a cover; a base plate; an elastic adhesive connection; in which the elastic adhesive connection provides a wet seal between the cover and the base plate. Also described are a related brake control device and a commercial vehicle.

A housing for a control device, including: a cover; a base plate; an elastic adhesive connection; in which the elastic adhesive connection provides a wet seal between the cover and the base plate. Also described are a related brake control device and a commercial vehicle.

A valve having an inlet, exhaust, control port, and diaphragm. The diaphragm moves between an open position, in which the inlet and exhaust are in fluid communication, and a closed position, in which the diaphragm blocks fluid from flowing between the inlet and the exhaust. The diaphragm moves from the closed position to the open position when an inlet force due to pressure at the inlet is greater than the sum of the biasing force and a control port force due to pressure at the control port. The valve is operable to automatically drain contaminants from a vehicle air reservoir when the vehicle's emergency brakes are set. To reduce noise, the diaphragm of the valve is preferably in tension when in the closed position, and/or the diaphragm opens a limited distance when in the open position so that a back pressure is generated at the inlet.

A compressed-air supply installation for operating a pneumatic installation includes a compressed-air feed, a compressed-air connection to the pneumatic installation, and a ventilation connection to a surrounding environment. The compressed-air supply installation further includes a pneumatic main line between the compressed-air feed and the compressed-air connection, the pneumatic main line having an air dryer, a ventilation line between the compressed-air feed and the ventilation connection, and a valve arrangement having a control valve configured to control a ventilation valve. The control valve is connected by a control valve connection in a pneumatic control line that is connected to a pressure control connection of the ventilation valve, the ventilation valve is connected by a ventilation valve connection in the ventilation line, and the control valve is assigned a control valve ventilation connection that is configured to be switchably connected to the ventilation connection or to the surrounding environment.

Provided is an insulted electrical cable including a core wire and a coating layer covering the core wire. The core wire is made up of at least one insulated wire including a conductor and an insulating layer covering the conductor. A coating member is disposed between the core wire and the coating layer to cover the core wire. A coefficient of kinetic friction between the coating member and the insulating layer at −30° C. is less than or equal to 0.20.

A system diagnoses and monitors air supply systems and includes a compressor with a drive, which is configured to provide pressurized air for the system, an air dryer, which is configured to remove moisture from the compressed air in the system, at least two sensors, wherein one sensor is configured and arranged to detect a status signal of a component to be monitored, and another sensor is configured and arranged to detect a reference signal relating to the component to be monitored, and an evaluation unit which is configured to evaluate the signals of the sensors. The evaluation unit is also configured to convert the sensor signals into maintenance and control signals based on an evaluation logic, which signals control the operating mode and the maintenance intervals of the air supply system.

An effluent processing apparatus comprises a housing having an inlet port and a chamber. A coalescing element is located in the chamber and arranged coaxially with the inlet port. The coalescing element has pleats in a predefined pattern of paths arranged to separate oil and water from an effluent mixture containing air, oil, and water. The effluent mixture flows into the inlet port along an axis of the coalescing element. The effluent mixture is deflected by a portion of the housing to flow perpendicular to the axis along major surfaces of the pleats to separate oil and water from the effluent mixture.

A brake-system damping device includes a first chamber, to which hydraulic pressure is to be applied, a second chamber, in which there is a compressible medium, and a first separating element for separating the first chamber from the second chamber. The brake-system damping device includes a third chamber, in which there is a compressible medium, and a second separating element for separating the second chamber from the third chamber. The second chamber is connected, for medium conduction, to the third chamber by means of a passage formed in the second separating element. A closure element is to be moved with the first separating element, by means of which closure element the passage is to be closed as soon as the hydraulic pressure has reached predefined pressure value in the first chamber.