Category: Mobile Circuits

Bendix Hydro Boost Brake System

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Bendix Hydro Boost Brake System

This system was developed by Bendix Corporation as a solution to the typically crowded engine compartments consisting of larger vacuum units. Figure 9.3 contains a schematic of this system. The basic system consists of an open center spool valve and a hydraulic cylinder assembled in a single unit. The power steering pump supplies the operating …

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Hydraulic Power Steering

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Hydraulic Power Steering

Power steering is another automotive application developed by Bendix Corporation. This is used in conjunction with a conventional type steering gear. The hydraulic power cylinder is mounted at any convenient place where it can be connected to act directly on the steering tie rod or equivalent linkage member (Figure 9.4). Power for steering is applied …

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Hydraulic Road Patrol Truck Circuits

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Hydraulic Road Patrol Truck Circuits

Figure 6-25, diagrams A and B respectively, shows a road-patrol truck’s hydraulic system and a hydraulic circuit’s schematic, as a comparison. The truck needs three double-acting cylinders to operate its blades and dump body: a plow hoist cylinder for the front plow, an underblade cylinder, and a dump-body hoist cylinder. The truck also has a …

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Hydraulic Power Steering Circuits

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Hydraulic Power Steering Circuits

Hydraulic power steering incorporates a hydraulic boost into a basic manual-steering system. A basic manual-steering system is an arrangement of gears in a box that multiplies the input torque from the steering wheel to a much greater torque at the steering shaft (Figure 6-22). The steering shaft, through the pitman arm (or steering-shaft arm), transmits …

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Hydraulic Lift Circuit

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Hydraulic Lift Circuit

Figure 6-21 shows the lift portion of the hydraulic system. The circuit has two cylinders: a single-acting lift cylinder and a double-acting tilt cylinder. The lift cylinder moves the lifting fork up and down. The tilt cylinder tilts the mast back and forth to support or dump the load. A two-section, multiple-unit directional valve controls …

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