589results about "Air treatment devices" patented technology

An improved system and method for mounting an air dryer is provided. The improved system and method employs a single centralized special fitting that secures the air dryer manifold to a reservoir. The bore in which the fitting is disposed is used to communicate air from the reservoir to the air dryer in order to purge the desiccant in the air dryer. The mounting assembly includes anti-rotational mechanisms which prevent the air dryer from rotating about its axis. The mounting assembly may also include a reservoir and a mounting bracket for the reservoir which uses less than 75 percent of a truck mounting rail height.

Various compressed air systems for commercial vehicles are disclosed. In one embodiment, a compressed air system is provided that includes a compressor, an air dryer apparatus, a purge reservoir, and an indicator device. The indicator device comprises a moisture-indicating material that is in contact with the purge air within the purge reservoir.

A method and apparatus provide multiple consecutive purges of an air dryer in a vehicle compressed air system. A dryer throughput sensor has an output indicative of the amount of compressed air that is passed through the dryer. In response, a CPU determines the number of purges needed to purge the dryer; and a valve is operated by the CPU to initiate multiple purges of the dryer when the compressor is unloaded.

The invention relates to a compressed air supply system for motor vehicles comprising a compressed air supply part consisting of a compressor, an air drying part comprising an air dryer, a filter, a valve and a compressed air consumer part consisting of compressed air consumer circuits provided with operational brake circuits, which are supplied with compressed air via a multi-circuit safety valve. The operational brake circuits and optionally, at least one other compressed air consumer circuit comprises compressed air containers and the pressure in said compressed air consumer circuits is monitored by sensors, the electric signals of which are evaluated by an electronic control device. Said electronic control device (84) is configured in such a manner that in order to determine parameters of the compressed air supply system (2) and the size of the compressed air containers and the output of the compressor (7), when filling the compressed air consumer circuits (26, 28, 30, 32, 34, 36, 38), the compressed air increasing speed in a compressed air consumer circuit and the compressor speed and an air drying regeneration process is carried out after the compressed air consumer circuit is filled with compressed air from the container of said circuit. The time period of a predefined fall in pressure or the fall in pressure is determined over a predefined time period and the amount of air necessary for carrying out said regeneration process is deducted from the value of the fall in pressure, the regeneration time and the known diameter of the filter (108) and the volume of the container is determined therefrom. The output of the compressor (7) is determined from the volume of the container, the determined compressed air increasing speed and the compressor speed.

The invention relates to a motor-pump aggregate 101, particularly for providing pressure for a brake actuation device of a motor vehicle brake system having a pneumatic brake force amplifier, comprising a pump 102 and an electric motor 103 driving the pump 102, wherein the pump 102 is provided as a double-membrane pump having two opposing working membranes 104, each of which is clamped between a pump housing 105 and a working chamber cover 106, thereby bounding a working chamber 107, and which can be displaced by means of a crank drive 108 comprising an eccentric 109 and a connecting rod 110, the working chamber 107 being associated with one of each of an inlet channel 111 having an inlet valve 112, and an outlet valve 113 having an outlet valve 114. In order to provide a motor-pump aggregate comprising a dry-running pump and accommodating high standards with regard to acoustic comfort and service life, and being improved with regard to the pump efficiency thereof, the invention proposes that the outlet channels 113 be disposed in the working chamber covers 106 and in the pump housing 105 such that the air forced out of the working chambers 107 is guided into an inner chamber 128 of the pump housing 105 encompassing the crank drive, and that an air outlet unit 129 be provided that allows low-noise expulsion of the air from the inner chamber 128 by deflecting the air.