US 12,246,824 B2
Nose wheel steering systems and methods
Jason Bradley Allen, Waco, TX (US)
Assigned to GOODRICH CORPORATION, Charlotte, NC (US)
Filed by GOODRICH CORPORATION, Charlotte, NC (US)
Filed on Dec. 13, 2021, as Appl. No. 17/549,144.
Prior Publication US 2023/0182891 A1, Jun. 15, 2023
Int. Cl. B64C 25/50 (2006.01); F15B 11/036 (2006.01); F15B 15/06 (2006.01); F16H 19/04 (2006.01); F16H 55/26 (2006.01)
CPC B64C 25/50 (2013.01) [F15B 11/036 (2013.01); F15B 15/065 (2013.01); F16H 19/04 (2013.01); F16H 55/26 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A rack assembly for a rack and pinion gear system, the rack assembly comprising:
a rack housing;
a rack disposed within the rack housing, the rack and the rack housing at least partially defining a first hydraulic chamber disposed between a first side of the rack and the rack housing, a second hydraulic chamber disposed between a second side of the rack and the rack housing, a third hydraulic chamber disposed within the rack proximal the first hydraulic chamber, and a fourth hydraulic chamber disposed within the rack proximal the second hydraulic chamber;
a piston disposed within the rack, the piston disposed between the third hydraulic chamber and the fourth hydraulic chamber, wherein the first hydraulic chamber, the second hydraulic chamber, the third hydraulic chamber, and the fourth hydraulic chamber are each fluidly isolated from one another.