A filter for an oil catch apparatus is provided. The oil catch apparatus is capable of efficiently extracting oil from air flowing through the oil catch apparatus while being of compact size. The filter includes a cylindrically wound main filter unit, a first keep member for keeping one end of the main filter unit, and a second keep member for keeping the other end of the main filter unit. Air flowing into the main filter unit from an opening formed in the first keep member is cleared of impurities upon passing through the main filter unit, and exits out of the main filter unit.

Provided are a connection structure and system of an integrated brake device for a rail vehicle. The connection structure of an integrated brake device for a rail vehicle includes a brake valve, a dust collector, an intermediate body, an air cylinder, a support assembly and a connection assembly. The intermediate body is of a plate-type structure, the brake valve and the dust collector are mounted on one side of the intermediate body, the air cylinder is connected to the intermediate body by means of the connection assembly, the air cylinder is mounted on the other side of the intermediate body, and the support assembly is located between the air cylinder and the intermediate body. The connection structure of an integrated brake device for a rail vehicle has a simple and compact structure and saves on space. Brake components are integrated on the intermediate body, and the connections between the brake components and between the whole integrated brake device and an external mounting base are all secure and reliable.

The invention relates to an electropneumatic brake system (1) for a commercial vehicle. The brake system (1) comprises brake control modules (8) by which it is possible to generate a brake pressure for service brake cylinders (6) which can be associated with single vehicle wheels or vehicle wheels of a vehicle axle. According to the invention there is a redundant compressed air supply of the brake control modules (8) by connecting the brake control modules (8) both to a compressed air reservoir (41, 42) as well as to a backup compressed air reservoir (43).

A pressure regulating valve for an air supply system of a utility vehicle includes a housing having at least one compressed air connection communicating with at least one first pressure regulating chamber. The pressure regulating chamber has a variable volume delimited by at least one wall section of the housing and a first active pneumatic surface of a pressure regulating piston. In first position of the pressure regulating piston a first regulating channel is not connected to the pressure regulating chamber, and a second position of the pressure regulating piston is connected to the pressure regulating chamber. The pressure regulating piston includes a pin which rises out of the first active pneumatic surface of the pressure regulating piston. A second active pneumatic surface is located on an end of the pin. The pin is movably guided through the wall section in a pneumatically sealed manner.

An air dryer cartridge, in particular for a compressed air treatment system of a commercial vehicle, includes a cartridge housing having a closed housing cover, an inner housing arranged in the cartridge housing, a desiccant accommodated in a space between the cartridge housing and the inner housing, a filter arrangement arranged inside the cartridge housing and positioned in the compressed air stream upstream of the desiccant in relation to normal operation of the air dryer cartridge, and a bypass for bypassing the filter device. A non-return valve, which blocks a compressed air stream in the direction towards the desiccant and allows a compressed air stream in the direction away from the desiccant, is arranged in the bypass. The non-return valve is formed in one piece together with the inner housing.

A method and a system are provided for adjusting a pressure of a medium to a target pressure. The method includes: providing a pneumatic structure in which the medium is at a medium pressure that is a starting pressure; providing an adsorptive material operable within a range of temperatures that is proportionate with a range of medium pressures at which the pneumatic structure is operable; and adjusting a temperature of the adsorptive material to effect an adjustment of the medium pressure to the target pressure for performing a selected function. The system performs the method and includes the absorptive material and at least one regulator for adjusting the temperature of the adsorptive material.

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 brake filter assembly and methods are shown. Example configurations include a filter lock that holds an indicator in an actuated position after a filter has become clogged. Example configurations may also include a bypass pathway to allow air to bypass the filter when the filter is clogged.

An oil separator includes a housing and an impingement member arranged in the housing. The oil separator introduces air containing oil into the housing and causes the air to strike the impingement member to separate the oil from the introduced air, thereby recovering the oil into a liquid storage portion. The oil separator further includes a liquid restoration device that restores collected liquid to an external device. The collected liquid contains the oil that has been separated from the air and recovered. The liquid restoration device includes an inlet port connected to the liquid storage portion, a retaining portion, and a discharge port connected to the external device.

The action of braking generates massive amounts of heat. It is known to install brake ducts 9, which channel air from the front of the vehicle to the brake discs 17. The air introduced by the brake ducts 9 is at an ambient temperature, much cooler than the brakes, and the airflow is closer to laminar (rather than turbulent) and continuously moves the hotter air away. This allows the brakes to shed heat at a faster rate and dramatically lowers the average operating temperature. The present invention provides a vortex tube 3 for supplying a stream of air 5 at a temperature substantially different from ambient temperature into brake ducts 9 to improve efficiency of the brake ducts 9.