US 11,933,332 B1
Isolated cylinder systems for load sensing architecture planter
Francesco Pintore, Modena (IT); Stefano Fiorati, Coronella-Poggio Renatico (IT); Eugenio Leati, Modean (IT); Trevor Philip Stanhope, Oak Lawn, IL (US); Xiaofan Guo, West Lafayette, IN (US); Andrea Vacca, West Lafayette, IN (US); and Patrick Michael Stump, Lafayette, IN (US)
Assigned to CNH Industrial America LLC, New Holland, PA (US)
Filed by CNH Industrial America LLC, New Holland, PA (US)
Filed on Sep. 26, 2022, as Appl. No. 17/952,474.
Int. Cl. F15B 7/08 (2006.01); A01C 7/00 (2006.01); F15B 1/02 (2006.01); F15B 7/00 (2006.01); F15B 11/16 (2006.01)
CPC F15B 7/08 (2013.01) [A01C 7/00 (2013.01); F15B 1/024 (2013.01); F15B 7/001 (2013.01); F15B 11/161 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A hydraulic drive system for an agricultural implement, comprising:
a high pressure supply line configured to provide hydraulic fluid under pressure;
a low pressure return line configured to return the hydraulic fluid;
a plurality of hydraulic motors and coupled to the high pressure supply line; and
a plurality of cylinder systems not directly fluidly coupled to the high pressure supply line to minimize a supply pressure of the hydraulic fluid provided from a pump coupled to the high pressure supply line and to minimize throttling losses in the hydraulic drive system during operation of the hydraulic drive system, wherein plurality of cylinder systems comprises a weight management cylinder system and a hydraulic down pressure cylinder system.