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2.
PERFORMANCE
2-1 MAXIMUM OUTPUT
The maximum output
of
an engine is such standard power as developed by that engine, after its initial run-in period with a1
the moving parts properly worn-in, when operating with the fully open throttle valve. Therefore, it follows that
a
nev
engine may not develop this maximum output in the beginning, because moving parts are not in a properly
w0rn-h
condition.
2-2
CONTINUOUS RATED OUTPUT
The continuous rated output of an engine is such power as developed by that engine when running at an optimum speec
most favorable from the point
of
view of engine life and fuel consumption ratio. Therefore, it follows that when designing
i
driving system for any mechanism, with a model
EY33-2
or
EY44-2
engine,
as
a
prime mover, the continuous powe
requirement
of
that mechanism must be kept below the continuous rated output specified.
2-3 MAXIMUM TORQUE AND FUEL CONSUMPTION RATIO AT MAX. OUTPUT
The maximum torque
of
an engine is that driving torque
of
the driving shaft at which the engine is driving
an
external load
while the engine is developing its max. output. The fuel consumption ratio at max. output
is
that fuel consumption ratio
o
an
engine while that engine is running at the max. output.
PERFORMANCE CURVE
Model
EY33-2
I
(
)for
B
type
RECOMMENDED OPERATING SPEED RANG
a
7
HP
5
I
MAX.
TORQUE
125112
5
-I
1.7(3.4)
124)12
--
~
1.6(3.2)
ft"b
(23J11.5--
I
kg-rn
1.5
(3.0)
320
300
280
g/
2000
2500
3000 3500
(1OOO)
112501
115001
11750)
rpm
-
P.h
-2-