It also consists of an air compressor, air accumulator, relief valve, lift control valve, leveling valve, and pipeline. The four air springs, which may be either the bellows-type or the piston type, are mounted on the same position where generally the coil springs are mounted. The layout of an air suspension system has been shown in Fig. The components of the air suspension system are: elongated bellows air spring Air Suspension System : Diagram Of Air Suspension System : air suspension system Diagram Components Of Air Suspension System : To resist the torques and thrusts, the radius rods are used at the rear axle. These elbows are arranged between the rear axle and the frame of the vehicle. These bellows are of approximately rectangular in shape but they are with semi-circular ends having generally two convolutions. When this system of suspension is employed to the rear axle of the vehicle, then elongated bellows are used. The diaphragm is tightly connected at its outer circumference to the lip of the drum and at the center to the piston as shown in Figure piston type air spring (iii) Elotlgated bellows air spring: A sliding piston is connected to the lower wishbone. This spring has a metal-air container in the form of an inverted drum. bellow type air spring (ii) Piston type air suspension (Spring): So, a bellow type air suspension replaces the coil spring. The bellows are made into circular sections having two convolutions for proper functioning as shown in Figure. This type of spring consists of rubber bellows. The following are different types of air suspension systems based on the design of air spring used. The electronically modulated air suspension is incorporated along with air spring in modern vehicles. But the suspension system is more complex. These systems generally employ small, electric, or engine-driven air compressors which sometimes fill an on-board air receiver tank that stores compressed air for use in the future without delay. They are best suited for most rear-end applications because there has more travel requirements and fewer load-capacity requirements.ĭevices for controlling the air pressure and compressors for compressing air are required in the air spring suspensions.
Tapered- and rolling-sleeve air springs are smaller in diameter with a longer stroke and a more linear spring rate. When air pressure is supplied to the airbag, the suspension can be adjusted either up or down (lifted or lowered). The metal spring (coil or leaf) is removed, and an airbag also referred to as an air spring, is inserted or fabricated to fit in the place of the factory spring. The installation and configuration of air suspension systems varies for different makes and models but the underlying principle remains the same.
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