Hydraulic Pump Applications

Category:

Hydraulics, ITC, Mechanical

Detail
Curriculum

Identify the various hydraulic pumps and their applications.

Prerequisites

General knowledge of hydraulic schematics is required. Review of the lesson, Hydraulic Schematics, is recommended.

Description

This is the fourth lesson in the iKNOW™ Industrial Hydraulic Power Library, this lesson discusses the various hydraulic pumps and their applications. It also describes symptoms of pump malfunction.

Objectives

Given a pictorial drawing or a system schematic, describe the role of the pump in hydraulic power transmission, Calculate the actual flow rate and the volumetric efficiency in a hydraulic system, Explain the effect of the position of the reservoir in relation to the operation of the inlet side of the pump and Recognize symptoms of pump malfunction, such as cavitation and aeration and identify likely causes.

INDUSTRIAL HYDRAULIC POWER

1

INTRODUCTION TO HYDRAULIC SYSTEMS

1 hour

This is the first lesson in the iKNOW™ Industrial Hydraulic Power Library. This lesson identifies the basic components of an industrial hydraulic system and explains their functions. Formulas, including Pascal’s Law, are presented and their use in determining values in a hydraulic system is explained.

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2

HYDRAULIC SCHEMATICS

1 hour

This is the second lesson in the iKNOW™ Industrial Hydraulic Power Library. This lesson introduces the schematic symbols that represent the basic components of a hydraulic system. It explains the use of color-coding used to identify pressure and how to identify the flow path through the system using schematics.

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3

HYDRAULIC FLUIDS

1 hour

This is the third lesson in the iKNOW™ Industrial Hydraulic Power Library. The lesson discusses the types, properties, and functions of hydraulic fluids and the components in which they are used.

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4

HYDRAULIC PUMP APPLICATIONS

1 hour

The fourth lesson in the iKNOW™ Industrial Hydraulic Power Library, this lesson discusses the various hydraulic pumps and their applications. It also describes symptoms of pump malfunction.

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5

POSITIVE DISPLACEMENT PUMPS

1 hour

This is the fifth lesson in the iKNOW™ Industrial Hydraulic Power Library. This lesson describes various positive displacement pumps and their components. The lesson explains some of the causes of system inefficiencies associated with fixed volume pumps and describes applications in which variable volume pumps are used.

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6

HYDRAULIC ACCUMULATORS

1 hour

This is the sixth lesson in the iKNOW™ Industrial Hydraulic Power Library. This lesson describes the common accumulators and their schematic symbols. It also describes the application and operation of an accumulator in a hydraulic system. Safety considerations for depressurizing and pre-charging an accumulator are discussed.

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7

PRESSURE CONTROL PRINCIPLES

1 hour

This is the seventh lesson in the iKNOW™ Industrial Hydraulic Power Library. This lesson describes the functions of a pressure relief valve in a hydraulic system and the conditions necessary for normal operation of a pressure relief valve. Pressure characteristics, the relationship of pressure and flow, and depressurization are also discussed.

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8

PRESSURE CONTROL OPERATION

1 hour

The eighth lesson in the iKNOW™ Industrial Hydraulic Power Library, this lesson presents various pressure control valves, their operation, and components.

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9

PRESSURE CONTROL VALVE APPLICATIONS

1 hour

This is the ninth lesson in the iKNOW™ Industrial Hydraulic Power Library. This lesson describes the proper operation of pressure control valves used in various applications.

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10

DIRECTIONAL CONTROL PRINCIPLES

1 hour

This is the tenth lesson in the iKNOW™ Industrial Hydraulic Power Library. This lesson describes various directional control valves. The lesson explains the function of the ports on a directional control valve and instructs the process of tracing the various flow paths through the valve. The lesson also describes the centering conditions and piloting arrangements commonly used with directional control valves.

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11

FLOW CONTROL VALVES

1 hour

This is the eleventh lesson in the iKNOW™ Industrial Hydraulic Power Library. The lesson demonstrates how to determine speed and flow rates and differential pressure. It describes various valves, their components, and their uses.

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12

ACTUATOR CYLINDERS

1 hour

This is the twelfth lesson in the iKNOW™ Industrial Hydraulic Power Library. This lesson describes the various cylinders used in hydraulic actuators. It also describes the operation of a cylinder controlled by regulating flow or pressure, and the purpose of a cylinder leak test.

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13

HYDRAULIC MOTORS

1 hour

This is the final lesson in the iKNOW™ Industrial Hydraulic Power Library. General knowledge of hydraulic schematics is required. Review of the lesson, Hydraulic Schematics, is recommended. This lesson describes various hydraulic motors and their functions. It also describes the operation of various hydrostatic drive circuits and the function of components and flowpath in a braking circuit.

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