| 摘要 |
A description is provided of a volumetric operating system (10) for scissors-type vehicle lifts, comprising a plurality of cylinders (16, 18, 20, 22) for movement of the vehicle lifting runways (12, 14), of which the main cylinders (16, 22) receive the operating fluid directly from supply means (24, 28, 30), and the secondary cylinders (18, 20) receive the operating fluid from the outlet (32, 34) of a respective one of the main cylinders (16, 22), wherein with each runway (12, 14) there is associated at least one of the said main cylinders (16, 22), and at least one of the said secondary cylinders (18, 20). Preferably, the outlet of each main cylinder (16, 22) which is associated with one of the runways (12, 14) supplies a secondary cylinder (18, 20) which is associated with the other runway (12, 14).
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