Combination load-leveling and kneeling air suspension system

Land vehicles – Wheeled – Running gear

Patent

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Details

267 65D, 280 61, 280714, 280DIG1, B60G 2100

Patent

active

042381282

ABSTRACT:
A combination load-leveling and kneeling air suspension system for a vehicle having a sprung member and an unsprung member. The system has a pair of laterally spaced air springs, a pressurized air reservoir with a first tubing line connecting the pressurized air reservoir to the first laterally spaced air spring and a second tubing line connecting the pressurized air reservoir to the second laterally spaced air spring. The first tubing line and the second tubing line have a common tubing portion. A first valve member is located in the first tubing line but not in the common tubing portion. Likewise, a second valve member is located in the second tubing line but not in the common tubing line portion. A third tubing line is connected between the pair of laterally spaced air springs and an isolation valve is located in the third tubing line intermediate its ends. A fourth tubing line connects the isolation valve with the common tubing line portion. A leveling valve is located in the fourth tubing line intermediate its ends.

REFERENCES:
patent: 3063734 (1962-11-01), Davies
patent: 4143925 (1979-03-01), Young

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