Chapter 20. HYDRAULIC PRINCIPLES

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Figure 19-21. Typical Eight-Wheel Drive Vehicle

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TM-9-8000 Principles of Automotive Vehicles Manual

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Figure 20-2. Pascal's Law.

TM 9-8000

CHAPTER 20

HYDRAULIC PRINCIPLES

Section I. PRINCIPLES

separately, their molecules act differently. Liquids have

20-1. Liquids Versus Gases (Fig. 20-1). One major

molecules that travel very short distances with almost no

factor that influences the compressibility of liquids and

space between them. Attempting to compress the liquids

gases Is their molecular bonding. Liquids have molecules

yields almost no change In the space between

moving freely around them, but not separating. Gases

molecules. Therefore, the volume also remains constant.

have molecules that are more active and tend to

This is the major reason why liquids are not compressed

separate readily. Because both liquids and gases are

compressed

Figure 20-1. Compressibility of Gases and Liquids.

20-1