This document presents information on power steering. It discusses the history of power steering from its invention in 1876 to its use in automobiles and agricultural vehicles. It describes the key components of power steering systems, including the reservoir, steering gearbox, rotary valve, and pump. It also covers the different types of power steering such as hydraulic, electro-hydraulic, and electric systems; and compares their workings. The document concludes by noting the advantages of power steering in reducing driver fatigue while providing easy steering control and its common applications in modern vehicles.

1. Presentation
on
POWER STEERING
Presented by-
RANJAN PATRA

2. CONTENTS
 Introduction
 History
 Component In power Steering
 Types of Power Steering & It’s Working.
 Applications
 Advantages and Disadvantages
 Conclusion

3. Introduction
Steering is the term applied to the collection of components, linkages, etc. Which allow for
a car or other vehicle to follow a course determined by its driver.

4. HISTORY
First installed in 1876.
On April 1900, Robert Twyfrod from USA got the patent for the four wheel drive system.
In 1926 demonstrated the first PSS.
On agricultural tractors in the early 1950’s.
Suitable for small to medium tractors where power steering can bean option to manual
steering .

5. COMPONENETS IN POWER STEERING
 Reservoir
 Steering gear box
 Rotary valve
 pump

6. RESERVOIR

7. STEERING GEAR BOX
• Steering gears are enclosed in a casing known as steering gear box

8. ROTARY VALVE
 A rotary valve for a power steering system includes a valve sleeve in which a rotor is
rotatably carried for controlling fluid flow froe a supply pump to a cylinder of the power
steering system.

9. PUMP
 Driven by vehicle’s engine.
 Amount of flow depends on engine’s speed.

10. TYPES OF POWER STEERING
1. Hydraulic
2. Electro-hydraulic [E.H.P.S]
3. Electric

11. COMPONENT OF HYDRAULIC SYSTEM

12. WORKING OF HYDRAULIC SYSTEM

13. ELECTRO– HYDRAULIC SYSTEM
• Hybrid system
• Use the same hydraulic assist technology as standard systems.
• Electric motor instead of being belt-driven by the engine.

14. ELECTRIC SYSTEM
It Mainly contains:-
 EPS ECU .
 MOTOR.
 SENSOR.

15. WORKING OF ELECTRIC SYSTEM

16. H.P.S V/S E.P.S
• Complication
• Weights
• Maintainance
• Response
• Power consumption

17. APPLICATIONS
 Now a days, these are used in almost all the heavy vehicles.

18. ADVANTAGES
 Reducing the driver’s fatigue.
 Low input torque and continuous steering function.
 Oil output directiy proportional to the steering speed.

19. DISAVANTAGES
 Leakage
 Less Durability
 Vibration

20. CONCLUSION
 By studying all these, we can conclude that the power steering is necessary for
the modern cars.
 It provides good handling to the driver, gives better comfort, and make him
less fatigue.

21. REFERENCES
 auto.howstuff.com/steering.htm
 en.wikipedia.org/power_steering
 Mechanicalseminarz.blogspot.com
 Authorstream.com/powersteering
 By Seminar report