Power Assisted Rack And Pinion Steering System

Rack and pinion steering is quickly becoming the most common type of steering on cars small trucks and suvs.

Power assisted rack and pinion steering system.

Rack and pinion systems are a common component in railways. There are advantages to both but there are some. The steering box system has many moving parts so is less precise than the rack system there being more room for wear and displacement. A cylinder with a piston in the middle is placed in the rack.

When pressure is placed on the fluid on one side of the piston it forces the piston to move which turns the rack and assists with steering. A rack and pinion gearset is enclosed in a metal tube with each end of the rack protruding from the tube. In single cable configurations the teleflex rack and pinion steering system is the best recommendation when you are in need of 4 turn options for a power steered boat. It is actually a pretty simple mechanism.

When a rack and pinion system is connected to a power steering system the design changes slightly. Back mount rack replaces 1984 date teleflex the rack steering. As epas electric power assisted steering systems have been developed and refined however manufacturers like porsche have managed to create electronic systems that all but match the feel of a. There is fluid on both sides of the piston.

Now let s take a look at the other components that make up a power steering system. Variable assist power steering is a nice system that regulates hydraulic pressure to provide greater assist at idle or slow speeds and reduce the assist at higher speeds. With rack and pinion steering the rotation of the pinion causes linear motion of the rack which turns the vehicle s wheels left or right. Rack and pinion is almost always power assisted.

Power assisted steering on a heavy car either the steering is heavy or it is inconveniently low geared the steering wheel requiring many turns from lock to lock. A rod called a tie rod connects to each end of the rack. This allows for a better steering feel at speed and reduces the possibility of over steering in a evasive or abrupt maneuver. When comparing steering systems you really only need to think about two types standard mechanical steering and rack and pinion steering.

The following describes how a basic power rack and pinion steering system works. Working of basic power steering system. Assist is provided by supplying higher pressure fluid to one side of the block. Power steering in a recirculating ball system works similarly to a rack and pinion system.