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Principles of Hydraulic Systems Design, Second Edition by Peter Chapple

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CHAPTER 3

HYDRAULIC CYLINDERS

3.1  INTRODUCTION

This chapter is concerned with:

  • The construction, mounting methods, and cushioning of hydraulic cylinders.
  • The construction of the major types of rotary actuators and the sealing methods.

3.2  HYDRAULIC CYLINDERS (LINEAR ACTUATORS)

Hydraulic cylinders convert flow into linear movement and pressure into force by employing a piston that slides inside a cylinder. The construction of a typical double-acting actuator can be seen in Figure 3.1 that shows the use of appropriate sliding seals for the piston and rod components. The double-acting feature to provide operation in both directions is not always required as in some applications (e.g., fork lift truck systems) the force from the load is used ...

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