US 12,392,416 B2
Pedal modulating valve assembly including multiple gain states
Peter Backes, North Mankato, MN (US); and Craig Lapoint, North Mankato, MN (US)
Assigned to ZF OFF-HIGHWAY SOLUTIONS MINNESOTA INC., North Mankato, MN (US)
Filed by ZF OFF-HIGHWAY SOLUTIONS MINNESOTA INC., North Mankato, MN (US)
Filed on Nov. 25, 2020, as Appl. No. 17/104,373.
Claims priority of provisional application 62/942,052, filed on Nov. 29, 2019.
Prior Publication US 2021/0164585 A1, Jun. 3, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B60T 13/14 (2006.01); F15B 13/02 (2006.01); F16K 11/07 (2006.01); F16K 31/62 (2006.01)
CPC F16K 11/0716 (2013.01) [B60T 13/141 (2013.01); F15B 13/024 (2013.01); F16K 31/62 (2013.01); Y10T 137/8671 (2015.04)] 18 Claims
OG exemplary drawing
 
1. A valve assembly, comprising:
a valve body defining a bore;
a plunger adjacent to the valve body;
a modulating biasing member disposed in the bore and abutting the plunger;
a spool disposed in the bore and adjacent the plunger with the modulating biasing member disposed therebetween, the plunger configured to move the spool between a neutral position and an energized position, and the spool defining a socket;
a piston disposed in the socket and configured to move between a first piston position and a second piston position within the socket; and
a dowel extending through the spool and the piston with the spool and piston operatively arranged with the dowel so as to slide relative to the dowel.