Granted Patent B1

US 12,434,672 · App. 18/379,395 · Granted Oct 7, 2025

Inventors: Don Verhoff (Oshkosh, WI); Gary Schmiedel (Oshkosh, WI); Chris Yakes (Oshkosh, WI); Rob Messina (Oshkosh, WI); Brian Wilkins (Oshkosh, WI); Kent Schulte (Oshkosh, WI); Daniel R. Seffernick (Oshkosh, WI); Joseph Holda (Oshkosh, WI); Michael Peotter (Oshkosh, WI); David McGraw (Oshkosh, WI); Anthony Seefeldt (Oshkosh, WI); Dave Pelko (Oshkosh, WI); Jesse Gander (Oshkosh, WI); Jerry Reineking (Oshkosh, WI); Jesse Steinke (Oshkosh, WI)

Assignee: OSHKOSH DEFENSE, LLC

B60T7/20B60G17/04B60T13/14B60T13/16B60T13/249B60T13/581B60T13/583B62D21/152B62D21/18B62D24/00B62D33/0617B62D63/025F41H5/16F41H7/044B60G2300/07B60K17/105B60T13/66F41H7/048

Abstract

Claims (52)

1. A military vehicle comprising:

a passenger capsule; and

a brake system including:

a brake housing defining an inner volume;

a piston separating the inner volume into a first chamber and a second chamber;

a rod extending through an end of the brake housing and coupled to the piston, the rod positioned to selectively engage with a brake to inhibit movement of a tractive element;

a resilient member positioned within the inner volume and configured to generate a brake biasing force against the piston such that the rod is biased into engagement with the brake;

an air-to-hydraulic intensifier coupled to the brake housing, the air-to-hydraulic intensifier configured to receive a supply of air and provide a hydraulic fluid to the brake housing based on the supply of air to overcome the brake biasing force to disengage the rod from the brake to permit movement of the tractive element;

a hydraulic reservoir; and

a valve positioned between the air-to-hydraulic intensifier, the brake housing, and the hydraulic reservoir.

2. The military vehicle of claim 1 , wherein the valve includes a first port fluidly coupled to the air-to-hydraulic intensifier, a second port fluidly coupled to the hydraulic reservoir, a third port fluidly coupled to the brake housing, and a valve gate that is repositionable between a first position and a second position, the first position coupling the first port to the third port to fluidly couple the air-to-hydraulic intensifier to the brake housing, the second position coupling the second port to the third port to fluidly couple the hydraulic reservoir to the brake housing.

3. The military vehicle of claim 2 , wherein the brake biasing force of the resilient member is configured to bias the piston to force the hydraulic fluid out of the brake housing, through the valve, and into the hydraulic reservoir in response to the valve being in the second position.

4. The military vehicle of claim 2 , wherein the valve includes:

an air pilot positioned at a first end of the valve gate; and

a biasing element positioned at an opposing second end of the valve gate, the biasing element configured to provide a valve biasing force to the valve gate to bias the valve gate into the second position.

5. The military vehicle of claim 4 , further comprising an air supply line coupled to the air-to-hydraulic intensifier and the air pilot, the air supply line configured to provide the supply of air to the air-to-hydraulic intensifier and the air pilot.

6. The military vehicle of claim 5 , wherein the supply of air provided to the air pilot overcomes the valve biasing force to reposition the valve gate into the first position to place the air-to-hydraulic intensifier into fluid communication with the brake housing to facilitate disengaging the brake.

7. The military vehicle of claim 1 , wherein the air-to-hydraulic intensifier includes a hydraulic pump.

8. The military vehicle of claim 1 , wherein the passenger capsule defines a front door aperture, a rear door aperture, and an interlocking door frame portion positioned along and protruding outward from an exterior of the passenger capsule and positioned between the front door aperture and the rear door aperture.

9. The military vehicle of claim 8 , wherein the passenger capsule includes (i) a front door positioned to selectively enclose the front door aperture and (ii) a rear door positioned to selectively enclose the rear door aperture, and wherein the front door and the rear door selectively engage with the interlocking door frame portion when closed.

10. The military vehicle of claim 1 , wherein the passenger capsule includes sidewalls and a floor coupled to the sidewalls, wherein bottom edges of the sidewalls extend past and below the floor, further comprising a belly deflector having lateral ends coupled to the bottom edges of the sidewalls, wherein the belly deflector is positioned beneath and isolated from the floor.

11. The military vehicle of claim 1 , wherein the passenger capsule includes a floor that defines a structural tunnel having an arcuate-shaped profile extending into an interior of the passenger capsule, further comprising energy absorbing seats positioned on opposing sides of the structural tunnel, the energy absorbing seats including a shock attenuating system.

12. The military vehicle of claim 1 , further comprising:

a generator configured to generate electricity; and

an export power kit coupled to the generator and configured to facilitate exporting power off of the military vehicle.

13. A military vehicle comprising:

a brake system including:

an air-to-hydraulic intensifier configured to couple to a brake actuator that engages a brake to limit movement of a tractive element, the air-to-hydraulic intensifier configured to receive a supply of air and provide a hydraulic fluid to the brake actuator based on the supply of air to overcome a brake biasing force of the brake actuator to disengage the brake actuator from the brake to permit movement of the tractive element;

a hydraulic reservoir coupled to the air-to-hydraulic intensifier; and

a valve positioned between the air-to-hydraulic intensifier, the brake actuator, and the hydraulic reservoir; and

a passenger capsule defining a front door aperture, a rear door aperture, and an interlocking door frame portion positioned along and protruding outward from an exterior of the passenger capsule between the front door aperture and the rear door aperture, the passenger capsule including (i) a front door positioned to selectively enclose the front door aperture and (ii) a rear door positioned to selectively enclose the rear door aperture, wherein the front door and the rear door selectively engage with the interlocking door frame portion when closed.

14. The military vehicle of claim 13 , wherein the valve includes:

a first port fluidly coupled to the air-to-hydraulic intensifier;

a second port fluidly coupled to the hydraulic reservoir;

a third port fluidly coupled to the brake actuator; and

a valve gate that is repositionable between a first position and a second position, the first position coupling the first port to the third port to fluidly couple the air-to-hydraulic intensifier to the brake actuator, the second position coupling the second port to the third port to fluidly couple the hydraulic reservoir to the brake actuator.

15. The brake system of claim 14 , wherein the valve includes:

an air pilot positioned at a first end of the valve gate; and

a biasing element positioned at an opposing second end of the valve gate, the biasing element configured to provide a valve biasing force to the valve gate to bias the valve gate into the second position.

16. A brake system comprising:

an air-to-hydraulic intensifier configured to couple to a brake actuator that engages a brake to limit movement of a tractive element, the air-to-hydraulic intensifier configured to receive a supply of air and provide a hydraulic fluid to the brake actuator based on the supply of air to overcome a brake biasing force of the brake actuator to disengage the brake actuator from the brake to permit movement of the tractive element;

a hydraulic reservoir coupled to the air-to-hydraulic intensifier; and

a valve positioned between the air-to-hydraulic intensifier, the brake actuator, and the hydraulic reservoir, the valve including:

a first port fluidly coupled to the air-to-hydraulic intensifier;

a second port fluidly coupled to the hydraulic reservoir;

a third port fluidly coupled to the brake actuator; and

a valve gate that is repositionable between a first position and a second position, the first position coupling the first port to the third port to fluidly couple the air-to-hydraulic intensifier to the brake actuator, the second position coupling the second port to the third port to fluidly couple the hydraulic reservoir to the brake actuator.

17. The brake system of claim 16 , wherein the valve includes:

an air pilot positioned at a first end of the valve gate; and

a biasing element positioned at an opposing second end of the valve gate, the biasing element configured to provide a valve biasing force to the valve gate to bias the valve gate into the second position.

18. The brake system of claim 17 , further comprising an air supply line coupled to the air-to-hydraulic intensifier and the air pilot, the air supply line configured to provide the supply of air to the air-to-hydraulic intensifier and the air pilot.

19. The brake system of claim 18 , wherein the supply of air provided to the air pilot overcomes the valve biasing force to reposition the valve gate into the first position to place the air-to-hydraulic intensifier into fluid communication with the brake actuator to facilitate disengaging the brake.

Assignments (2)

Continuity (7)

References Cited (400)