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2.
PERFORMANCE
2-1 MAXIMUM OUTPUT
The maximum ouput of an engine is such standard power as developed by the engine, after its initial break in period with all
-
the moving parts properly worn in, when operating with
a
fully open injection pump. Therefore, a new engine may not
develop the maximum output in the beginning because the moving parts are not
in
a properly worn-in condition.
2-2
CONTINUOUS
RATED
OUTPUT
The continuous rated output
of
an engine
is
such power as developed
by
that engine when running continuously at
an
opti-
mum speed, and most favorable
from
the viewpoint
of
engine life and fuel consumption ratio, with the governor in opera-
tion. It
is
suggested, therefore, that when designing a driving system for any mechanism, with this engine as prime mover,
the continuous power requirement
of
that mechanism be kept below the continuous rated output specified.
2-3 MAXIMUM TORQUE
and
FUEL CONSUMPTION
RATIO
AT MAXIMUM OUTPUT
These mean the maximum torque
of
the output shaft and
fuel
consumption ratio at the maximum output of an engine,
PERFORMANCE CURVE
MODEL DYBOD,
B
HP
t
I
10
9
8
7
6
5
4
3
2
1
1c
(1
450)
(1
2
1.5
1
kg-m
t
JIHP-h
-
rpm.
-3-