ABSTRACT

In Chapter 2, we learned that the four functions of a hydraulic fluid are to

1. transmit power

2. lubricate

3. seal clearances

4. provide cooling

Most of the discussion in the intervening chapters has focused on the transmission of power. Mechanical energy is converted to hydraulic energy; this hydraulic energy is flowed to a new location and there reconverted to mechanical energy. This chapter focuses on the lubrication, sealing, and cooling functions.