In the steering mechanism with built-in hydraulic booster, instead of a roller, a three-tooth sector is cut on the bipod shaft, and the role of a worm is performed by a screw connected to a piston-rack mounted on two thrust bearings, the preload of which is regulated by a nut
In the crankcase of the steering mechanism, a hydraulic booster cylinder is made, in which a piston-rack moves along the screw.
The piston is made integral with the ball nut and has teeth that engage with the teeth of the bipod shaft sector.
The piston divides the cylinder into two cavities. When the steering wheel is stationary, the pressure in them is the same.
Depending on the direction of rotation of the steering wheel, the corresponding cavity of the cylinder is connected through a hydraulic distributor to the high-pressure supply line, and the other to the outlet line.
The pressure of the fluid (oil) in the hydraulic system of the power steering creates a vane-type pump with a belt drive from the crankshaft pulley, mounted on the front of the engine.
In the expansion tank of the power steering hydraulic system there is a filter element that traps particles larger than 45 microns.
The steering gear consists of steering trapezoid rods, bipod rods and levers.
Self-tightening collapsible hinges with hemispherical fingers are pressed into the eye of the pendulum lever and into the ends of the rods.
The tie rods of the steering trapezoid have adjusting tubes, and corrugated rubber seals with a metal clip are pressed on the shoulders of their tips.
The hinges of the bipod rod and the pendulum lever are protected by cap rubber seals.
Hydraulic power steering system: 1—tank bracket; 2— tank; 3— a collar of fastening of a tank; 4 - hose clamps; 5 - outlet hose (low pressure.); 6— injection hose (high pressure); 7—bolt fitting; 8—adjusting nut; 9—steering gear; 10 - cover; 11 - adjusting screw; 12—cardan joint; 13 - seal; 14 - locknut; 15 - bipod; 16— pump bracket; 17— Pump; 18—pump drive belt; 19 - suction hose.
