Abstract: A vehicle includes an axle having a left wheelset with at least one wheel and a right wheelset with at least one wheel. The wheels have a common axis of rotation. A lateral axis is defined as parallel to the axis of rotation. A central plane is defined as perpendicular to the lateral axis and centered between the left and the right wheelset. The vehicle defines a forward direction, which is perpendicular to the lateral axis. The vehicle defines a rearward direction opposite to the forward direction. An outward direction is defined as a direction away from the central plane. An inward direction is defined as a direction toward the central plane. The vehicle has an aerodynamic skirt arranged in a forward projection of the axle. The aerodynamic skirt includes a curved portion that has a frontal end and is curved outward from the frontal end in the rearward direction.

Abstract: A pneumatic brake for a vehicle is provided. The pneumatic brake includes a housing and a single diaphragm within the housing that divides the housing into front and rear variable-volume chambers. A push rod is disposed in the front chamber and extends outwardly from the housing. A parking spring is disposed in the rear chamber and urges the diaphragm and push rod towards the front chamber. A valve body extends through the rear chamber and includes an elongated stem disposed in a telescoping relationship with the push rod. In resting and activation modes, brake pressure is applied by the parking spring to the top plate to activate a brake function. In a deactivation mode, pneumatic pressure is supplied to the front chamber to compress the parking spring and disengage the brake. A brake system including the pneumatic brake and an ABS is also provided.

Abstract: A pneumatic brake for a vehicle is provided. The pneumatic brake includes a housing and a single diaphragm within the housing that divides the housing into front and rear variable-volume chambers. A push rod is disposed in the front chamber and extends outwardly from the housing. A parking spring is disposed in the rear chamber and urges the diaphragm and push rod towards the front chamber. A valve body extends through the rear chamber and includes an elongated stem disposed in a telescoping relationship with the push rod. In resting and activation modes, brake pressure is applied by the parking spring to the top plate to activate a brake function. In a deactivation mode, pneumatic pressure is supplied to the front chamber to compress the parking spring and disengage the brake. A brake system including the pneumatic brake and an ABS is also provided.