Proven performance and reliability for aircraft engine flow and

Electro-Hydraulic Servo Valves (EHSV)
Proven performance and
reliability for aircraft engine
flow and pressure applications
Contents
Electro-Hydraulic Servo Valves
Series I EHSV��������������������������������3
Series II EHSV�������������������������������4
Series III EHSV�������������������������������5
Electro-Hydraulic Valves
Electro-Hydraulic Servo Valves (EHSV)
Honeywell’s EHSVs represent a standardized, minimum weight design approach, applicable
to meet a wide range of flow, pressure, and interface requirements. With over 1.2 billion
flight hours accumulated, Honeywell’s EHSVs have delivered proven performance and
unsurpassed reliability in the severe environments encountered in aircraft engine applications.
Typical Applications
■■
pressure control
■■
Temperature Range: -65 to 350°F
High-pressure/high flow two-stage
■■
Pressure Range: Up to 4000 PSI
EHSVs for both fuel and oil systems
■■
Flow Range: 0.5 CIS to 158 CIS
■■
Fuel metering
■■
Fluids: Hydraulic Oil or Jet Fuel
■■
Actuator position control
■■
Vibration: 100G to 3kHz with no
■■
Flight critical applications
■■
Thermal management
■■
Over-speed protection
■■
Thrust vector nozzle actuation
Post Clevis EHV�����������������������������6
2-Position Nozzle Flapper EHV������7
3-Way Nozzle Flapper EHV������������7
Three- and four-way flow and
General Specifications
and Features
■■
damping fluid
■■
Robust armature support structure
eliminates vibration sensitivity
■■
Elastomeric pivot seal eliminates flexure
sleeve and need for damping fluid
■■
Floating second stage sleeve
eliminates binding due to clamp loads
and thermal transients
■■
Integrated second stage feedback
device option
Honeywell can provide designs to meet
specific customer requirements.
2
aerospace.honeywell.com
Tel. 1.770.262.9200
Electro-Hydraulic Servo Valves (EHSV)
Series I EHSV
General Specification and Characteristics
Type I EHSV Dynamic Response (Gain)
2.00
2-Stage, 4-Way, Jet-Pipe
0.00
Rated Flow:
0.5 to 10 CIS at 300 PSID
-2.00
Supply Pressure:
Up to 1500 PSIG
Chip Shear Force:
> 30 lbf. at 300 PSID
Internal Leakage:
0.44 CIS maximum at 300°F,
300 PSID and 10 CIS
Hysteresis:
4% of rated current Maximum
Threshold:
1% of rated current Maximum
Linearity:
10% of rated current Maximum
Weight:
0.85 lbs. Maximum
Attenuation (dB)
Product:
-4.00
-6.00
-8.00
-10.00
-12.00
0.1
90.00
1.0
Frequency (Hz)
10
100
Type I EHSV Dynamic Response (Phase)
80.00
70.00
Phase (Deg)
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
1.0
Frequency (Hz)
10
100
Valve Rated at 30 CIS at 300 PSID
Tel. 1.770.262.9200
aerospace.honeywell.com
3
Electro-Hydraulic Servo Valves (EHSV)
Series II EHSV
General Specification and Characteristics
Type II EHSV Dynamic Response (Gain)
2.00
Product:
2-Stage, 4-Way, Jet-Pipe
Rated Flow:
1.0 to 30 CIS at 300 PSID
Supply Pressure:
Up to 1500 PSIG
Chip Shear Force:
> 40 lbf. at 300 PSID
Internal Leakage:
0.62 CIS maximum at 300°F,
300 PSID and 30 CIS
Hysteresis:
4% of rated current Maximum
-10.00
Threshold:
1% of rated current Maximum
-12.00
Linearity:
10% of rated current Maximum
Weight:
1.25 lbs. Maximum
0.00
Attenuation (dB)
-2.00
-4.00
-6.00
-8.00
0.1
1.0
Frequency (Hz)
10
100
Type II EHSV Dynamic Response (Phase)
90.00
80.00
Phase (Deg)
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
1.0
Frequency (Hz)
10
100
Valve Rated at 30 CIS at 300 PSID
4
aerospace.honeywell.com
Tel. 1.770.262.9200
Electro-Hydraulic Servo Valves (EHSV)
Series III EHSV
General Specification and Characteristics
Type III EHSV Dynamic Response (Gain)
2.00
2-Stage, 4-Way, Jet-Pipe
0.00
Rated Flow:
1.0 to 40 CIS at 300 PSID
-2.00
Supply Pressure:
Up to 1500 PSIG
Chip Shear Force:
> 40 lbf. at 300 PSID
Internal Leakage:
0.71 CIS maximum at 300°F,
300 PSID and 40 CIS
Hysteresis:
4% of rated current Maximum
Threshold:
1% of rated current Maximum
Linearity:
10% of rated current Maximum
Weight:
1.40 lbs. Maximum
Attenuation (dB)
Product:
-4.00
-6.00
-8.00
-10.00
-12.00
0.1
90.00
1.0
Frequency (Hz)
10
100
Type III EHSV Dynamic Response (Phase)
80.00
70.00
Phase (Deg)
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
1.0
Frequency (Hz)
10
100
Valve Rated at 40 CIS at 300 PSID
Tel. 1.770.262.9200
aerospace.honeywell.com
5
Electro-Hydraulic Valves (EHVs)
Configurations
■■
Typical Applications
Three-Way Nozzle Flapper
■■
Single-Stage
■■
Two-Position Nozzle Flapper
Single-Stage
■■
■■
Fuel Metering (Three-way
General Specifications
and Features
Nozzle Flapper and Post Clevis)
■■
Temperature Range: -65 to 350°F
Fuel Shut-off (Two-Position
■■
Pressure Range: Up to 1500 PSI
■■
Flow Range: Up to 5.0 CIS
■■
Fluids: Hydraulic Oil or Jet Fuel
Nozzle Flapper)
Variable Two-Way Post Clevis
Single-Stage
Honeywell can provide designs to meet
specific customer requirements.
Post Clevis EHV
General Specification and Characteristics
Product:
Single-Stage, Variable 2-Way, Post Clevis
Rated Flow:
Up to 4.45 CIS at 50 ±0.5 PSID
Supply Pressure:
Up to 1150 PSIG
Step Response:
< 35 milliseconds
Weight:
0.87 lbs. Maximum
6
aerospace.honeywell.com
Tel. 1.770.262.9200
Electro-Hydraulic Valves (EHV)
2-Position Nozzle Flapper EHV
General Specification and Characteristics
Product:
Single-Stage, 2-Position, Nozzle Flapper
Rated Supply Pressure:
1200 PSIG
Flow Capability (Open):
1.25 CIS Minimum at 150 PSID
Internal Leakage (Close):
150 CC/H MAXIMUM AT 1000 PSID
Dynamic Response (Open):
< 5 milliseconds
Dynamic Response (Close):
< 10 milliseconds
Weight:
0.75 lbs. Maximum
3-Way Nozzle Flapper EHV
General Specification and Characteristics
Product:
Single-Stage, 3-Way, Nozzle Flapper
Rated Flow:
0.35 CIS at 250 PSID
Rated Differential Pressure:
250 PSID
Hysteresis:
1.5% of rated current Maximum
Equivalent 1st Order Constant:
< 5 milliseconds
Weight:
0.75 lbs. Maximum
Tel. 1.770.262.9200
aerospace.honeywell.com
7
Next Generation EHSV Technology
Honeywell is currently refining the EHSV
technology roadmap and our future
product line investments will be based
upon customer input. New product
development will tentatively be targeting:
■■
Improved reliability
■■
Better FOD resistance
■■
Reduced cost / time-to-market
■■
Less internal leakage
■■
Fail-fixed / fail-safe designs
■■
Higher temperature and vibration
capability
Honeywell Aerospace
944 East Sky Harbor Circle
Phoenix, AZ 85034
U.S. Toll Free: 1.800.601.3099
International: 1.602.365.3099
aerospace.honeywell.com
A60-1334-000-001
March 2015
© 2015 Honeywell International Inc.