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Truck air-actuated disc brake. An air brake or, more formally, a compressed-air-brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to both release the parking/emergency brakes in order to move the vehicle, and also to apply pressure to the brake pads or brake shoes to slow and stop the vehicle.
The bus chassis variant of the International S series is a cowled bus chassis (conventional style) that was produced by International Harvester (later Navistar International) from 1979 to 2004. Produced primarily for school bus applications, the chassis was also produced for other applications, including commercial-use buses and cutaway-cab buses.
International 8100 4x2 tractor towing solar panels International 4700 For 1989, Navistar split the S-series model line into three distinct model families, all sharing the same cab structure. The 4000 series was the medium-duty truck range (the 3000 series bus chassis replaced the "Schoolmaster"), with the 7100/8100 serving as the Class 7/8 ...
Westinghouse Air Brake Company's Rotair Valve [18] The first form of the air brake consisted of an air pump, a main reservoir (pressure vessel), and an engineer's valve on the locomotive, and of a train pipe and brake cylinder on each car. One problem with this first form of the air brake was that braking was applied to the first cars in a ...
The International Harvester Company (IHC) has been building its own proprietary truck engines since the introduction of their first truck in 1907. International tended to use proprietary diesel engines. In the 1970s, IHC built the DVT 573 V-8 diesel of 240 and 260 hp (179 and 194 kW) but these were not highly regarded and relatively few were sold.
During 1928, International's own tractor engines were replaced in the heavy-duty lineup by much more modern and powerful units from Hall-Scott; model numbers accordingly gained an HS-prefix and these were fitted with front drum brakes to handle the higher speeds possible. In 1930, the HS series was gradually replaced by two new lines: from ...
WABCO Holdings, Inc. was a U.S.-based provider of electronic braking, stability, suspension and transmission automation systems for heavy-duty commercial vehicles. [2] In 2007, the Vehicle Control Systems was spun off as WABCO Holdings Inc., an American provider of electronic braking, stability, suspension and transmission automation systems for heavy-duty commercial vehicles.
A relay valve is an air-operated valve typically used in air brake systems to remotely control the brakes at the rear of a heavy truck or semi-trailer in a tractor-trailer combination. Relay valves are necessary in heavy trucks in order to speed-up rear-brake application and release, since air takes longer to travel to the rear of the vehicle ...