US 12,479,410 B2
Air dryer apparatus for a vehicle air brake charging system
Nadia Caroline Hernandez Leyva, Chihuahua (MX); and Jose Guadalupe Ayala Sanchez, Apodaca (MX)
Assigned to Bendix Commercial Vehicle Systems LLC, Avon, OH (US)
Filed by Bendix Commercial Vehicle Systems LLC, Avon, OH (US)
Filed on Jul. 6, 2022, as Appl. No. 17/858,434.
Prior Publication US 2024/0010179 A1, Jan. 11, 2024
Int. Cl. B60T 17/02 (2006.01); B01D 53/26 (2006.01); B60T 17/00 (2006.01); F04B 49/02 (2006.01); F04B 49/03 (2006.01); F04B 49/035 (2006.01)
CPC B60T 17/02 (2013.01) [B01D 53/26 (2013.01); B60T 17/004 (2013.01); F04B 49/022 (2013.01); F04B 49/03 (2013.01); F04B 49/035 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An air dryer apparatus for a vehicle air brake charging system, the air dryer apparatus comprising:
an air dryer governor assembly including (i) a plastic sleeve having an external sleeve surface and an internal sleeve surface that defines a piston bore, (ii) a piston disposed in the piston bore and slidable along the internal sleeve surface between a preset cut-out setting and a preset cut-in setting of the air dryer governor assembly, and (iii) one or more ribs disposed on the external sleeve surface to prevent deformation of the plastic sleeve when the piston slides along the internal sleeve surface between the preset cut-out and cut-in settings, wherein each of the one or more ribs of the plastic sleeve is reinforced with glass fibers that are oriented in a direction substantially parallel to a longitudinal central axis of the piston.