Description
APECS™ 0175 linear actuators deliver precise
positioning and form the foundation of a full
electronic governing system. Many of the moving
parts normally associated with electric actuators are
eliminated, prolonging the MTBF (mean time
between failure).
The actuator design employs the principle of
variable reluctance for consistent force over the
entire stroke. This simple design of a proportional electric linear actuator utilizes a
linear armature whose magnetic force is proportional to the input current to the coil.
These actuators are easy to install by mounting near the fuel system with a direct
connection to the fuel control rod or level. In most installations, the normal rotary-torotary connection is eliminated, resulting in a more trouble-free and accurate control
system
APECS 0175 actuators are suitable for installation on diesel, gasoline, or natural gas
engines with fuel system force requirements of less than 4.0 pounds (17.8 N) of
force.
Woodward also manufactures 0175 actuators integral to the engine block or fuel
pump. For details on these purpose-built actuators visit www.woodward.com to
access Product Specification 37744.
Applications
Provides proportional fuel control for construction, industrial, and agricultural
equipment. 1.75-inch (44.4 mm) diameter spring-return actuator, pull or push
models, three spring types available.
Electrical Specifications
Stroke 0.75 inch (19 mm) minimum
Force 3.5 lb (15.6 N) @ 23 °C (with SI spring, normal current)
Work Rating 0.3 lb-ft (0.4 N-m)
Nominal Rated Current 4.3 A (12 V [dc]); 2.3 A (24 V [dc])
Response Time 30 ms for 10 % to 90 % of stroke
Resistance (nominal) 2.80 Ohms (12 V); 10.63 Ohms (24 V)
Mechanical Specifications
Operating Temperature –40 °F to +185 °F (–40 °C to +85 °C)
Vibration 15 G's (3 planes, 1 h/plane 50 Hz to 1000 Hz sweep;
3 planes, 1 h/plane at first resonant frequency)
Shock Designed for US MIL-STD-810F, Method 516.5,
Section 4.5.2: Procedure 1: 40 G peak
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