Hydraulic Topics Outline

Fluid Power

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Hill Learning Systems
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Topic Outline of HETaC Industrial Hydraulic Training Software

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The following is an outline of topics covered:

Topic Outline

Physics of Energy

Hydraulic Energy Transmission

Transmission Through a Fluid

Pressure Gage

Positive Displacement Pump

Resistance to Flow

Intensifiers

Pressure Differential

The Inlet Side of the Pump

Pressure Scales

Inlet Side Operation

Cavitation

Aeration

Actuators Force and Speed

What They Do

Force

Speed

Horsepower

Control of Hydraulic Energy

What Must be Controlled

Pressure

Flow

Direction

Cylinders

What Cylinders Do

What Cylinders Consist Of

Cushions

Stop Tubes

Stroke Adjuster

Mounting Styles

NFPA Standardized Mounting Styles

Four Most Common Mounting Styles

Cylinder Types

Side Lug Mount

Head Square Flange Mount

Cap Square Flange Mount

Cap Fixed Clevis Mount

Accumulators

What They Do

Types

Hydro-Pneumatic

Spring Loaded

Weight Loaded

Applications

Increasing Flow

Maintaining Pressure

Absorbing Shock

Emergency Backup

Check Valves

What Check Valves Do

What Check Valves Consist Of

How Check Valves Work

Types of Check Valves

Check Valve Applications

Flow Control Valves

What Effects Flow Across a Flow Control Valve

Effects of Load on Pressure Differential Across an Orifice

Types

Fixed Orifice

Needle Valve (adj. orifice)

Flow Control (with bypass check)

Pressure Compensation

How Pressure Compensation Works

Temperature Compensation

Bi-Metal Rod

Sharp Edge Orifice

Pressure Control Valves

How They Work

Normally Open vs. Normally Closed

How Symbol Represents the Valve Components

Internal vs. External Drains

Internal Pilot vs. Remote Pilot

Pilot Operated Valves

Applications

Relief Valve

Sequence Valve

Counterbalance Valve

Brake Valve

Unloading Valve

Pressure Reducing Valve

Directional Control Valves

What They Do

Operators

Ways

How Are Ways Determined?

Two Way

Three Way

Four Way

Valve Function

4-Way Function

3-Way Function

2-Way Function

Positions

Center Spool Conditions

Blocked Center Spool

Float Center Spool

Open Center Spool

Tandem Center Spool

Springs

Spring Offset

Spring Centered

No Springs

Detents

Mounting Positions

Solenoids

Pilot Operated Valves

Pumps

What Hydraulic Pumps Do

Types of Hydraulic Pumps

Vane Pumps

Gear Pumps

Spur Gear

Gerotor

Piston Pumps

Balanced Vane

Variable Volume Pumps

Variable Volume Vane Pumps

Variable Volume Piston Pumps

Variable Volume Pressure Compensated

Pressure Compensated Vane

Pressure Compensated Piston

Case Drain

Motors

What Hydraulic Motors Do

Types of Hydraulic Motors

Vane Motors

Gear Motors

Spur

Gerotor

Orbiting low speed high torque gerotor

Piston Motors

Balanced Vane

Variable Volume Motors

Variable Volume Vane Motor

Variable Volume Piston Motor

Reservoirs

What Hydraulic Reservoirs Do

What a hydraulic reservoir consist of

Types of Reservoirs

Conventional

L - Shaped

Overhead

Coolers

Water to Oil

Air to Oil

Installation Water Cooler

Installation Air Cooler

Filters

Effect of Contamination

Types of Contamination

Micrometer Scale

Filter Element Types

Sources of Dirt

Type of Filters by Location

Reservoir Filter

Inlet Filter

Pressure Filter

Return Line Filter

Bypass Check Valves

Graphic Symbols

Pumps

Motors

Pressure Control Valves

Cylinders

Flow Control Valves

Directional Control Valves

Miscellaneous Components

Specialized Circuits

Regenerative Circuits

Hi-Low Circuits

Quick Fill Circuits

Circuit Color Coding