초록 ▼

An air supply system for a motor vehicle air brake system incorporating a desiccant type air dryer. The purge capacity of the air dryer is enhanced providing greater water and contaminant removable characteristics for the air dryer. The system incorporates a pressure reducing element and a control s

An air supply system for a motor vehicle air brake system incorporating a desiccant type air dryer. The purge capacity of the air dryer is enhanced providing greater water and contaminant removable characteristics for the air dryer. The system incorporates a pressure reducing element and a control system for the system compressor causing air passing through the air dryer to be at a higher pressure than that necessary for charging the system reservoir. The higher pressure air supplied to the air dryer provides greater volumetric capacity for the purge volume of the air dryer. In this way an air dryer purge volume of a given size provides a greater purge capacity.

대표청구항 ▼

An air supply system for a motor vehicle comprising: an air compressor cyclically actuatable from a loaded mode producing compressed air and an unloaded mode not producing said compressed air, a reservoir for storing said compressed air produced by said air compressor, an air dryer for absorbing wat

An air supply system for a motor vehicle comprising: an air compressor cyclically actuatable from a loaded mode producing compressed air and an unloaded mode not producing said compressed air, a reservoir for storing said compressed air produced by said air compressor, an air dryer for absorbing water in said compressed air produced by said air compressor, said air dryer having a desiccant material for absorbing said water and a purge volume for storing purge air for purging said desiccant material when said compressor is in said unloaded mode, pressure reducing means for reducing the pressure of said compressed air delivered by said air compressor before said air is delivered to said reservoir whereby said purge volume is charged with air at a higher pressure than air delivered to said reservoir, connection means for transmitting said air from said air compressor to said air dryer and said reservoir, and control means for controlling said system to cyclically actuate said air compressor between said loaded mode for charging said reservoir and said purge volume, and said unloaded mode during which air charged in said purge volume purges said desiccant material.