Double Convoluted Air Spring/Air Suspension 2B9-254/FD200-25 463 W01-358-6946

OEM NUMBER

PRODUCT DRAWING

DESCRIPTION

Air springs have been used in heavy duty vehicle suspension systems for nearly a century, where they have been able to provide usefulness by taking advantage of the compressed air required for vehicle braking systems. Air springs have provided a two-fold advantage over mechanical leaf- or coil-springs. One advantage with air suspension is the extra comfort provided by being able to vary the air pressure inside the spring, which changes the spring rate, and therefore, ride quality. Additionally, because variable control over air pressure adjusts the deck or trailer height, aligning loading docks to the level of the deck is possible when dock plates are unavailable.

Working Principle:

With changing loads, air spring reacts initially by changing the distance between air spring support and coach body. then actuating height monitoring valve( leveling valve ), either by taking the compressed air to the air spring or releasing air pressure from it to the atmosphere this process continues until the required height is maintained this mechanism ensures a constant floor height on coaches provided with air springs, irrespective of the load.

The Main Components of Air Spring are as under:

• Bellows
• Lateral shock absorbers
• Level equalizing valve lever
• Branch pipe 20dia.
• Inner side emergency spring
• 150 litres capacity reservoir.
• 40 litres capacity auxiliary reservoir- 04nos.
• Non-return valve
• Isolating cock
• Duplex check valve
• Air spring support cradle
• Air spring releasing valve