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Stemac 4 - New Engine Products

The document outlines new engine products introduced by Stemac in 2006/2007, specifically focusing on the APECS 0225 and APECS 0275 linear actuators designed for precise engine control in various applications. It highlights their cost-effective design, versatile mounting options, and compatibility with existing actuator systems. Additionally, it discusses the F-Series actuator and integrated throttle body (ITB) project aimed at replacing FloTech technology with improved digital control and diagnostics capabilities.
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0% found this document useful (0 votes)
23 views17 pages

Stemac 4 - New Engine Products

The document outlines new engine products introduced by Stemac in 2006/2007, specifically focusing on the APECS 0225 and APECS 0275 linear actuators designed for precise engine control in various applications. It highlights their cost-effective design, versatile mounting options, and compatibility with existing actuator systems. Additionally, it discusses the F-Series actuator and integrated throttle body (ITB) project aimed at replacing FloTech technology with improved digital control and diagnostics capabilities.
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Stemac

New Engine Products – 2006/2007

25 de maio de 2006

APECS 0225 Linear Actuator


Cost Effective Roller Bearing
¼ Pound Linear Actuator

June 2006

1
APECS 0225 Linear Actuator
• Precise engine control
ƒ Ball bearing design
• Consistent output at high duty
cycles
ƒ Thermally effective coil design
for efficient heat dissipation
• Versatile
ƒ Push or pull applications
ƒ Flange or base mount
ƒ One full inch of stroke
• Cost effective
ƒ Designed for China
manufacturing
3
Proprietary Information

APECS 0225 Linear Actuator


Proportional fuel control for power generation, construction,
industrial, and agricultural equipment

• Spring return to minimum fuel


• Precise repeatability
• Mounts in any position
• 2-hole, 4-hole, and base mount
flanges for drop-in replacement
of DYNA 2000 actuators
• Meets INR & EMP for moderate tactical
battlefield environment

4
Proprietary Information

2
0225 Product Application
• Engine speed control
for JLG man lifts
• Precise control for
hydraulic pump and
lift positioning

5
Proprietary Information

0225 Benefits Summary


• Ball bearing design reduces friction, resulting
in more precise engine control
• Minimizes heat buildup, resulting in consistent
force and improved position repeatability
• Push or pull actuation
• Mounts in any position
• 2-hole, 4-hole, and base mount flanges for
drop-in replacement of DYNA 2000 and
functional replacement for the APECS 2500
actuators

6
Proprietary Information

3
APECS 0275 Linear Actuator
Cost Effective Roller Bearing 1/2 Pound Linear
Actuator

June 2006

APECS 0275 Linear Actuator


• Precise engine control
ƒ Ball bearing design
• Consistent output at high
duty cycles
ƒ Thermally effective coil
design and heat dissipation
• Versatile
ƒ Push or pull applications
ƒ Flange or base mount
ƒ One full inch of stroke
• Cost effective
ƒ Designed for China
8 manufacturing
Proprietary Information

4
APECS 0275 Linear Actuator
Proportional fuel control for power generation,construction,
industrial, and agricultural equipment

• Spring return to minimum fuel


• Precise repeatability
• Mounts in any position
• 2-hole, 4-hole, and base mount
flanges for drop-in replacement
of DYNA 2000 actuators
• Meets INR & EMP for moderate tactical
battlefield environment

9
Proprietary Information

0275 Product Application


• Kohler standby generator
• Precision engine control
over a wide range of
temperatures and load
variations

10
Proprietary Information

5
0275 Benefits Summary
• Ball bearing design reduces friction, resulting
in more precise engine control
• Minimizes heat buildup, resulting in consistent
force and improved position repeatability
• Push or pull actuation
• Mounts in any position
• 2-hole, 4-hole, and base mount flanges for
drop-in replacement of DYNA 2000 actuators

11
Proprietary Information

Linear Actuator Rationalization


Strategy
Current Linear Actuators Future Linear Actuators

Notes:
APECS 0175 Continue with potential
0.8 in. travel shift to China prod. or 1. The 0225 and 0275 are a family of
4 lbs. Net force replacement by 0175MM actuators that are designed with linear ball
0.3 ft-lb. Work rating bearings for manufacture in China. These
? units offer less force loss with temperature,
0175A R & D lower cost and improved resolution than
DYNA 2000 0.5 in. travel units they replace.
0.8 in. travel 8 lbs. Net force
6.5 lbs. Net force 0.33 ft-lb Work rating 2. The 0175MM is a currently experimental
0.25 ft-lb Work rating Moving magnet
Do Not Promote No target 06 earliest moving magnet design having a moving
magnet that offers the potential of more
APECS 0250 APECS 0225 precise control and greatly reduced cost at
1 in. travel 1 in. travel
6 lbs. Net force 6.5 lbs. Net force
a reduced stroke but increased work rating
0.5 ft-lb. Work rating 0.5 ft-lb Work rating compared to today’s 0175.
Ball bearing
Proto avail. March 05 3. The 0225 offers better force and work
DYNA 2500 Launch June 06
0.8 in. travel
ratings than the current 0250 in a smaller
13 lbs. Net force package.
0.5 ft-lb Work rating
Do Not Promote 4. The 0275 offers a slightly lower work
APECS 0300 APECS 0275 rating at reduced size and cost compared to
1 in. travel 1 in. travel the current 0300.
15 lbs. Net force 13 Lbs. Net force
1.25 ft-lb Work rating 1.0 ft-lb Work rating 5. Net force defines force without spring,
Proto avail. Feb. 05
Launch June 06 actual available force TBD by spring
selection.
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Proprietary Information

6
F-Series Actuator and
Integrated Throttle Body
(ITB)

Customer Update

F-Series – Replacing FloTech


• FloTech Summary
ƒ Limited Angle Torquer (LAT) technology
ƒ Basic positioner – drives to a position between 0 and 70°
corresponding to the input command
ƒ 33, 48, 60, 68 and 75mm bores
ƒ -40 to 105°C on engine environment
ƒ Analog electronics technology
ƒ Position feedback is only
communication
ƒ ITB only – no actuator model

Today’s FloTech

14
Proprietary Information

7
F-Series Actuator/ITB
• F-Series Summary
ƒ Primary goal is replacement of the Flo-Tech
ITB
ƒ - 40 to 105° C on engine environment
ƒ ITB versions will have the same throttle body
geometry as the existing Flo-Techs
(48, 60 and 68mm bore sizes)
ƒ Limited Angle Torquer (LAT) technology
ƒ Updated digital control and communications ITB Version
technology
ƒ ITB and modular actuator versions
ƒ On-board position control electronics
ƒ Platform for other F-Series derivatives
including integrated speed control, mass flow
control and other generic actuator applications
Modular Actuator Version

15
Proprietary Information

ITB Orientation Options


• Design Improvement
to Facilitate Engine
Fit

ƒ The ITB has been


designed such that the
same parts can be built A B
up in any of four
quadrants to help with
customer fit issues
when replacing a
FloTech.

C D
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Proprietary Information

8
F-Series Actuator/ITB
• Versions
ƒ The F-Series project will develop three versions of the
product.
• F-Series Throttle
ƒ Simple, lower cost ITB with limited inputs and outputs.
ƒ PWM command only
• F-Series Throttle Plus
ƒ Higher functionality ITB with full set of inputs and outputs plus
CAN.
• F-Series Modular Actuator
ƒ Same functionality as the Throttle Plus in a stand-alone
actuator package.

17
Proprietary Information

F-Series Actuator/ITB
• Review of the
Overall Packaging

18
Proprietary Information

9
F-Series Actuator/ITB

19
Proprietary Information

F-Series Actuator/ITB
• Internal Structure

20
Proprietary Information

10
F-Series Actuator/ITB
• Internal Structure

21
Proprietary Information

F-Series Actuator/ITB
• Project Status
ƒ 18 Beta Units Delivered to 7 Customers
ƒ 30 Units Built for Internal Testing
ƒ Random Vibration Testing Complete
• RV3 On-Engine Mobile random profile, .3G2/Hz, 10-
2000Hz, 22.1 Grms
• All three units passed and are currently being
inspected

22
Proprietary Information

11
F-Series Actuator/ITB
• Project Status – Internal Testing Continued
ƒ Highly Accelerated Life Testing
(HALT) Complete
• Unit functioned well beyond
temp and vibe spec. limits

Unit stressed from –100 to 145°C


and 50G’s

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Proprietary Information

F-Series Actuator/ITB
• Project Status – Internal Testing Continued
ƒ Currently Performing EMC Testing
• Near completion
F-Series Beta Torque Output
• Correcting small findings
30

ƒ Actuator Output
25

Testing Complete
20
• Meets spec. Steady State
Transient
Torque (in-lbs)

• Linear output 15

10

0
0 10 20 30 40 50 60 70

-5

Angle (deg)

24
Proprietary Information

12
F-Series Actuator/ITB
• Project Status – Internal Testing Continued
ƒ Initial engine testing in Loveland engine lab
• Good control results
• Improved shut-off
characteristics

25
Proprietary Information

F-Series Actuator/ITB
• Project Status – Internal Testing Continued
ƒ Other Testing to be Completed
• Continue engine testing
• Temperature testing for thermal mapping and performance
• Long term reliability testing
• Enclosure protection
• Dynamics performance
• Mechanical and Electrical subsystem testing
• Listings testing

26
Proprietary Information

13
EGS
The Only Fully Integrated Control
System for Large High Speed Gas
Engines

Gas Engine Control


Start / Stop KW feedback

Knock
Detection
Power
Management
Controls
Integrated
Spark Throttle Bodies
Plugs
Ignition By-pass /
Coils Waste gate

High Energy TecJet


Ignition Gas Control
Valve

March 2006

EGS
• Allows an engine to
maintain peak efficiency
with varying fuel quality
ƒ Speed/Load Control
• Integrated Throttle Bodies
Gas Engine Control
• Bypass/ Wastegate control Start / Stop KW feedback

ƒ Air Fuel Ratio Control


Knock
• Gas quality closed looped control (fuel Detection
energy compensation) Power
Management
• Mass fuel rate calculated and delivered Controls
ƒ Ignition Spark
Integrated
Throttle Bodies
• High Energy for poor fuel quality Ignition
Plugs
By-pass /
• Energy (coming soon) and Ignition timing Coils Waste gate
control for each fuel
ƒ Diagnostics/Prognostics
• Knock Detection
• Misfire Detection High Energy TecJet
Gas Control
ƒ Full Compatibility with EasyGen Ignition
Valve

Power Management product line


ƒ All products communicate via CanBus

28
Proprietary Information

14
EGS Speed/Load Control
•Control
•Motorola 565 Micro Processor
Gas Engine Control
•128 Pins of I/O
•Three Speed Dynamics
•Generator Breaker open
•Generator Breaker closed
•Utility Breaker closed
•Independent Load Dynamics
•Boost Control (new)

•Engine Calibration and Troubleshooting


made easy
Integrated By-pass /
•Software Trending Feature’s (new) Throttle Bodies Waste gate

•Full Range of Throttle and Actuator Sizes


•ITB sizes 16mm-185mm
•Specialty valves available for bypass and wastegate
applications
•Actuator Work Output
•L-Series 0.34 joules
•F-Series 1.7 joules
•P-Series 2.2 joules – 17.4 joules
29
Proprietary Information

EGS AFR Control


Gas Engine Control

• Gas Quality Closed Loop


Control (kw feedback)
ƒ More than 2000 systems
operating with GQCL on EGS-
01 platform
ƒ Improved Transient Model

ƒ Able to switch between 2 gases


ƒ Input for external CH4 analyzer TecJet 50+ TecJet 110

ƒ Easier to calibrate
• Automatic learning of Te and Ve
tables
• Gas Properties Calculated
ƒ 3 Tecjet sizes
Tecjet Precision Low Flow
• Future Work
ƒ Tandems
ƒ Stereo control
ƒ Fuel Blending
ƒ Cost reductions

30
Proprietary Information

15
EGS Ignition Control
• EGS Control Gas Engine Control

ƒ Controls Ignition Timing


ƒ Controls Ignition Energy
ƒ Timing and Energy limits are
based on fuel quality, knock
and misfire limits
• Ignition Control IC92X Ignition Controller

ƒ IC920 180 mJ system


• Competes with Altronic CPU 95
ƒ IC922 360 mJ system Ignition Coils
• Highest energy system on the
market
ƒ Up to 24 cylinders

31
Proprietary Information

EGS Diagnostics/Prognostics
• Knock Control Gas Engine Control
ƒ Closed loop timing control to keep out of
knock regime
ƒ Load rejection if timing change does not
keep engine from knocking
ƒ Safety shutdown if knock is uncontrollable
ƒ 8 accelerometer inputs per firefly
• Misfire detection
ƒ Crankshaft accelerations are used for
detecting misfire
Firefly Knock detection module
ƒ Energy control for increased spark plug
life based misfire limits (future work)
• Status level of all components in
system
• Troubleshooting made much
easier with updated interface
ƒ Trending analysis
ƒ Export data to Excel spreadsheet
ƒ Multi level password access

32
Proprietary Information

16
Product Application

33
Proprietary Information

World’s largest independent


designer, manufacturer, and service provider
of energy control solutions for
aircraft engines, industrial engines and turbines,
power generation, and process automation equipment

17

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