An operator cab for a work vehicle includes: a cab enclosure including a roof an operator chair disposed in the cab enclosure; at least one layer of noise-deadening material coupled to the roof; and a headliner coupled to the roof such that the at least one layer of noise-deadening material is at least partially disposed between the headliner and the roof. The headliner includes a noise-reflective material and a noise escape region that comprises at least one opening configured to allow sound waves to pass through the noise escape region into the at least one layer of noise-deadening material and reduce noise reflection by the headliner to the operator chair.

A military vehicle includes a brake positioned to facilitate braking a tractive element, 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 where the rod is positioned to selectively engage with the brake to inhibit movement of the tractive element, a resilient member positioned within the inner volume and configured to generate a biasing force against the piston such that the rod is biased into engagement with the brake, and an air-to-hydraulic intensifier coupled to the brake housing. The air-to-hydraulic intensifier is 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 biasing force to disengage the rod from the brake to permit movement of the tractive element.

A military vehicle includes a chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, and a suspension system. The suspension system include a front suspension assembly and a rear suspension assembly. The front suspension assembly is positioned between the chassis and the front axle. The rear suspension assembly is positioned between the chassis and the rear axle. Each of the front suspension assembly and the rear suspension assembly includes a first spring, a second spring, a first hydraulic damper, and a second hydraulic damper. The first hydraulic damper and the second hydraulic damper of at least one of the front suspension assembly or the rear suspension assembly are cross-plumbed to provide a hydraulic body roll control function and eliminate the need for an anti-roll bar.

A military vehicle includes a brake positioned to facilitate braking a tractive element, 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 where the rod is positioned to selectively engage with the brake to inhibit movement of the tractive element, a resilient member positioned within the inner volume and configured to generate a biasing force against the piston such that the rod is biased into engagement with the brake, and an air-to-hydraulic intensifier coupled to the brake housing. The air-to-hydraulic intensifier is 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 biasing force to disengage the rod from the brake to permit movement of the tractive element.

A military vehicle includes a passenger capsule, a front module coupled to a front end of the passenger capsule, and a rear module coupled to a rear end of the passenger capsule. The passenger capsule has a frame rail-less monocoque hull structure. The front module includes a front axle, a front differential coupled to the front axle, and a prime mover. The rear module includes a rear axle and a transaxle coupled to the prime mover, the rear axle, and the front differential.

A military vehicle includes a front axle, a rear axle, a front differential coupled to the front axle, and a transaxle coupled to the rear axle and the front differential. The transaxle includes an internal mechanical disconnect that facilitates mechanically decoupling the transaxle from the front differential.

A military vehicle includes a passenger capsule. The passenger capsule includes a sidewall defining a front door aperture and a rear door aperture, a front door positioned over the front door aperture, a rear door positioned over the rear door aperture, and a latching mechanism configured to secure the front door and the rear door in a closed positioned. The sidewall includes an interlocking door frame portion positioned (i) along an exterior of the sidewall between the front door aperture and the rear door aperture and (ii) proximate the latching mechanism such that the front door and the rear door engage with the interlocking door frame portion positioned along the exterior of the sidewall between the front door aperture and the rear door aperture when the front door and the rear door are closed and engaged with the latching mechanism.

A military vehicle includes a passenger capsule including a roof, a floor, and sidewalls that define an interior, a driver seat and a passenger seat disposed within the interior of the passenger capsule, and a belly deflector coupled to an exterior of the passenger capsule and positioned beneath the floor. The belly deflector is spaced from the floor such that the floor is configured as a floating floor. The floor and the belly deflector provide two levels of underbody protection.

A vehicle includes a passenger capsule, a front module, a rear module, an engine, a transaxle, a front lift structure, and a rear lift structure. The front module is coupled to a front end of the passenger capsule. The front module includes a first longitudinal frame member, a second longitudinal frame member, and a front axle assembly. The rear module is coupled to a rear end of the passenger capsule and includes a rear axle assembly. The engine is coupled to the front module. The transaxle is coupled to the rear module. The transaxle includes a housing. The rear axle assembly includes a component that is directly coupled to the housing of the transaxle. The front lift structure includes protrusions extending from the first longitudinal frame member and the second longitudinal frame member. The rear lift structure includes protrusions extending from opposing lateral sides of the structural shell.

Disclosed are gas cylinder assemblies for containing pressurized gas. The gas cylinder assembly has a polymeric liner and a low-permeability barrier layer. The polymeric liner a first end portion, a second end portion and a central body. The central body comprises an outer surface and an inner surface disposed between the first end and the second end. The gas cylinder assembly comprises a reinforcement structure wound over the central body. The gas cylinder assembly further comprises a metal foil interposed between the reinforcement structure and central body. The metal foil is configured to reduce permeation of contents of the polymeric liner.