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Principles of Hydraulic Systems Design, Second Edition by Peter Chapple

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CHAPTER 6

ANCILLARY EQUIPMENT

6.1  INTRODUCTION

This chapter is concerned with describing the function and relevant performance aspects of the following components:

  • Accumulators
  • Filters
  • Coolers
  • Reservoirs

6.2  ACCUMULATORS

6.2.1  Types

Accumulators are widely used in fluid power systems as a means of storing energy. Although weight- and spring-loaded types are sometimes used, those employing a pressurized gas are preferred because of their compactness and superior performance.

There are two main types of pressurized-gas-filled accumulators: those using piston and those using collapsible bladders.

As shown in Figure 6.1, the fluid is separated from the pressurized gas by either a bladder, Figure 6.1a, or a piston, Figure 6.1b. The gas is usually ...

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