| 摘要 |
758,761. Spring suspensions; preventing lateral canting. SOC. ANON. A. CITROEN. April 2, 1954 [Dec. 21, 1953], No. 9701/54. Class 108 (2). Relates to a hydraulic anti-rocking device for a vehicle having a wheel suspension system comprising wheel supporting members which are elastically sprung with respect to the vehicle chassis frame by means of springs or by means of pneumatic cushioning devices. According to the invention, the wheel supporting members for each pair of wheels on opposite sides of the chassis frame act on the pistons of a pair of hydraulic cylinders provided on the chassis frame, the displacement of the pistons by the wheel supporting members being cushioned by the springs or pneumatic cushioning devices, and that by means of a rotary pump inserted in a connecting pipe between the cylinders, liquid is transferred from one cylinder to the other under the control of a distributer which is operated by a predetermined movement of the wheel supporting members, the arrangement being such that liquid is removed from the cylinder on the less loaded side and delivered to the cylinder on the heavier loaded side of the vehicle. In the arrangement shown, in which a pair of road wheels 1, 1 is controlled by hydro-pneumatic suspension devices 7 operatively connected to wheel-carrying arms 2, the devices 7 are interconnected, through piping 9 and a slide-valve or rotary valve distributer 14, with a continuously rotating gear pump 8. The arrangement is such that increased loading on one side of the vehicle is resisted by transfer of liquid by the pump 8 from the device 7 at the other side of the vehicle. As shown, the distributer 14, controlling the direction of liquid flow comprises a rod 13 operatively connected to both arms 2, for sliding movement in the valve housing. The rod 13 is formed with reduced diameter portions 18, 20, 21 which, in the position shown, prevents liquid flow between the devices 7, but which under conditions of unequal wheel loading connects the pump delivery 15 to the heavier loaded device and the pump supply 16 to the other device. |
