Air spring assembly

Details Air spring assembly Air spring assembly

B - Operations, Transporting

60

G

267/47

B60G 11/26 (2006.01) B60G 11/27 (2006.01) F16F 9/05 (2006.01)

Patent

CA 1097380

AIR SPRING ASSEMBLY ABSTRACT OF THE DISCLOSURE A heavy duty rolling lobe air spring which has an open hollow piston providing a reservoir and an outer surface on which the lobe of a flexible sleeve rolls, the surface including a horizontal top, a gently curved outer surface joining an inverted frustro-conical side and terminating in an outwardly flared bottom portion. The side walls have an angle with respect to the axis of the piston greater than 20° and preferably about 23°. The volume of the piston and the sleeve, and the angle of the frustro-conical surface are such that the effective area of the sleeve decreases under jounce and the spring rate is in the range of 100 to 300 pounds per inch (17.5 - 52.5 KN/m) at a design load in the range of 1000 to 8000 pounds (454 - 3629 kg). The ratio of load to spring rate is thus above 20 inches (50.8 cm) at design loads in excess of 5000 lbs (2268 kg).

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