Compressed air supply system for a compressed air consumer circuit
AssigneeWABCO GmbH
InventorHeinrich Diekmeyer
Life of this patent
Estimating the term…
Abstract
In a compressed air supply system for a first compressed air consumer circuit such as an air spring system of a vehicle, a first compressed air line leads to the first compressed air consumer circuit and a distribution line leads to further consumer circuits. A priority valve arrangement is disposed between the first compressed air line, wherein the first compressed air line comprises no safety valve. The first compressed air consumer circuit can therefore be filled at a higher priority, and achieve operational readiness quickly in air spring processes such as lifting or raising activities.
Claims14
A compressed air supply system for a vehicle suspension bellows and a plurality of consumer circuits, the compressed air supply system comprising:
- a dryer component including an air dryer and a non-return valve, the dryer component providing a supply of compressed air through the non-return valve;
- a compressed air line in fluid communication with the dryer component and having a control valve to deliver the supply of compressed air into the interior of the bellows;
- a priority valve in fluid communication with the dryer component and the compressed air line, the priority valve having an opening pressure, the priority valve being connected in parallel with a feedback valve;
- and
- a distributor line in fluid communication with the priority valve and coupled to the plurality of consumer circuits,
- wherein the priority valve is operable to open the supply of compressed air to the distributor line when the pressure of the supply of compressed air is greater than the opening pressure of the priority valve such that the compressed air line is simultaneously coupled to each of the plurality of consumer circuits through the priority valve, wherein the priority valve is operable to close the supply of compressed air to the distributor line when the pressure of the supply of compressed air is less than the opening pressure of the priority valve, such that the bellows receives the supply of compressed air from the dryer component prior to the supply of compressed air being available to the plurality of consumer circuits, and wherein the feedback valve is operable to couple the distributor line to the compressed air line for filling of the bellows if the pressure in the distributor line is greater than the pressure in the compressed air line.
Dependencies are inferred from the claim text.