PGEV and PGE Locomotive Governors. Manual - part 3
Manual 36703
PGEV and PGE Locomotive Governors
Woodward
1
Chapter 1.
General Information
Introduction
The PGE governor is basically a standard PG hydraulic governor to regulate
engine speed with a number of special adaptations for locomotive and train
operation. It includes an electro-hydraulic speed setting mechanism for remote
control of engine speed, a mechanical-hydraulic load control device for automatic
regulation of engine load to maintain a specific power output at each speed
setting, and a 12 ft-lb (16 J) single acting spring return hydraulic power servo with
tailrod. The power servo may have either a reciprocating (linear) or rotary output.
The governors may be arranged for use with a remote vane servomotor to adjust
the generator exciter rheostat or they may include both servomotor and rheostat
as integral parts of the governor. See Figures 1-1 through 1-4.
The manuals listed below supplement the information contained in this manual
and are required to provide complete coverage:
36600,
PG Governor Basic Elements
36692,
PG Power Cylinder Assemblies
36693,
PG Base Assemblies
A number of optional auxiliary features and devices are available for use, either
singly or in combination with the PGE and PGEV governors. These devices
permit the governor to perform other secondary functions in addition to its
primary function of regulating engine speed and power output. A list of manuals
of these features and devices follows:
36404,
Type PG Governors Analysis and Correction of Governing Troubles
36405,
Recommended Tools for PG Governors
36601,
Absolute Manifold Pressure Bias Load Control and Fuel Limiter
36652,
Automatic Safety Shutdowns and Alarms
36695,
Manifold Air Pressure Bias Fuel Limiter (inline Model)
Specifications
Mounting Base and Drive:
See Figures 1-5, 1-6, 1-7
Mounting
Attitude:
Vertical
Drive Rotation:
Fixed cw, fixed ccw, or reversible
Maximum Speed Range:
200 to 1600 rpm
Recommended Speed Range:
200 to 1200 rpm
Drive Power Requirement:
1/2 hp (373 W) at maximum drive speed and
normal hydraulic viscosity
Hydraulic Fluid:
Petroleum base lubricating oil (contact Woodward
if other hydraulic fluids are to be used)
Recommended Viscosity Range:
100 to 200 SSU (minimum of 50 to a maximum
of 3000 SSU for wide range applications). See
manual 25071, Oils for Hydraulic Controls
Supply:
Self-contained, 1-5/8 quart (1.5 L) capacity
(approx.). Two quart (1.9 L) capacity with
integral vane servo.
Pressure:
Approximately 100 psi (690 kPa)
Normal Operating Temperature:
–20 to +210 °F (–29 to +99 °C). Contact
Woodward beyond these limits. Hydraulic
fluid pour point must be below lowest
expected starting temperature.