Driver's cab suspension device with roll stabilizing means

A suspension system for resilient and damping suspension of a cab of a motor vehicle relative to a vehicle chassis, the suspension system comprising:

• a spring/damper arrangement;
• a hydraulic arrangement having:
• a right side hydraulic cylinder positioned on a right side of the suspension system relative to a driving direction of the motor vehicle;
• a left side hydraulic cylinder positioned on a left side of the suspension system relative to the driving direction of the motor vehicle;
• and
• each of the right side and the left side hydraulic cylinders comprising a piston located therein for separating upper and lower cylinder chambers from one another;
• a hydraulic roll stabilizing device having:
• a first pressure line by which the upper cylinder chamber of the right side hydraulic cylinder is in fluid communication, via the first pressure line, with the lower cylinder chamber of the left side hydraulic cylinder;
• and
• a second pressure line by which the upper cylinder chamber of the left side hydraulic cylinder is in fluid communication, via all the second pressure line, with the lower cylinder chamber of the right side hydraulic cylinder so that fluid can flow between the upper chamber of one hydraulic cylinder and the lower chamber of the other hydraulic cylinder;
• an upper cross-bridge being connected to and supporting the cab in a rear suspension area thereof and a lower cross-bridge being connected to the chassis;
• a horizontal stabilization arrangement having:
• at least one component connecting the lower cross-bridge to the upper cross-bridge,
• a first end of the horizontal stabilization arrangement being connected to the upper cross-bridge adjacent one of the left and the right side of the suspension system,
• the horizontal stabilization arrangement extending toward the other of the right and the left side of the suspension system, and
• a second end of the horizontal stabilization arrangement being, connected to the lower cross-bridge adjacent the other of the right and the left side of the suspension system;
• one end of the spring/damper arrangement being connected to the upper cross-bridge and an opposite end of the spring/damper arrangement being connected to the lower cross-bridge;
• one end of each of the right side and the left side hydraulic cylinders being connected to the upper cross-bridge and an opposite end of the respective one end of each of the right side and the left side hydraulic cylinders being connected to the lower cross-bridge;
• the spring/damper arrangement and the left and the right side hydraulic cylinders are arranged vertically relative to the driving direction of the vehicle;
• and
• the suspension system is reassembled as a complete module for connection to the rear of the vehicle chassis as a preassembled complete module.