US 12,460,661 B2
Pneumatic supply device for an agricultural tractor
Simon Gaedker, Glandorf (DE); Bernd Kneer, Viernheim (DE); and Marc Schaefer, Mainz (DE)
Assigned to DEERE & COMPANY, Moline, IL (US)
Filed by DEERE & COMPANY, Moline, IL (US)
Filed on Aug. 23, 2024, as Appl. No. 18/813,491.
Claims priority of application No. 102023123727.6 (DE), filed on Sep. 4, 2023.
Prior Publication US 2025/0075715 A1, Mar. 6, 2025
Int. Cl. F15B 21/048 (2019.01); B60T 13/26 (2006.01); B60T 17/00 (2006.01); F15B 21/041 (2019.01); F15B 21/0423 (2019.01)
CPC F15B 21/048 (2013.01) [B60T 13/26 (2013.01); B60T 17/004 (2013.01); F15B 21/0423 (2019.01); F15B 21/041 (2013.01)] 6 Claims
OG exemplary drawing
 
4. An agricultural tractor, comprising:
a compressed air source for producing a compressed air flow;
a cooler for producing a cooled air flow;
a first air dryer, which is fed with the cooled air flow, supplies a first pneumatic consumer group with dehumidified compressed air via a first air dryer outlet in accordance with a first dehumidification and flow capacity; and
a second air dryer, which is fed with the cooled air flow, supplies a second pneumatic consumer group with dehumidified compressed air via a second air dryer outlet in accordance with a second dehumidification and another flow capacity
wherein the second pneumatic consumer group is supplied with the cooled air flow via an upstream pressure switching valve, wherein, when a predetermined supply pressure is undershot, the pressure switching valve adopts a closed position, with the result that the cooled air flow is available exclusively to the first pneumatic consumer group.