D136-001-007 MOOG DCS Servo Valve

Description

D136-001-007 Technical Specifications
1. Basic Information
1.1 Product Type
Turboshaft engine, specifically designed for heavy-lift helicopter applications.
1.2 Developer & Manufacturer
Developed by Lotarev Design Bureau (Progress Design Bureau) and manufactured by Motor Sich Company.
2. Core Performance Parameters
2.1 Power Output
Takeoff power: 7457 kW (10,000 shp approx.); Maximum climb power: 6338 kW; Peak power: 8500 kW (11,000 shp).
2.2 Air Compression Performance
Air compression ratio at takeoff power: 18.3; Mass flow rate at takeoff power: 36 kg/s.

2.3 Turbine Temperature
Turbine temperature at takeoff power: 1478 K; Maximum turbine temperature: 1516 K.
2.4 Fuel Consumption Rate
Fuel consumption rate at takeoff power: 0.198 kg/hp; Fuel consumption rate at cruise condition: 0.206 kg/hp.
3. Structural & Dimensional Parameters
3.1 Engine Configuration
Three-shaft dual-rotor six-stage axial-flow engine; modular unit design with 10 core modules, half of which are shared with the D-36 turbofan engine.
3.2 Key Component Materials
Titanium alloy rotor blades; steel stator blades.
3.3 Overall Dimensions
Total length: 3964 mm; Width: 1670 mm; Height: 1160 mm.

3.4 Net Weight
1050 kg (achieved through extensive use of titanium alloy structures to balance strength and weight reduction).
4. Rotational Speed Parameters
Low-pressure valve core speed: 10,950 rpm; High-pressure valve speed: 14,170 rpm; Free turbine speed: 8,300 rpm (adjustable by the pilot within a ±300 rpm range).
5. Lubrication & Control Systems
5.1 Lubrication System
Equipped with an automatic pressure lubrication system to ensure reliable lubrication of all moving components under various operating conditions
5.2 Control System
Electronic control system that guarantees effective ignition and reliable operation in all modes; includes a fuel supply system that adapts engine speed to fuel settings, and an automatic spindle speed maintenance mechanism. In case of one engine failure, the mechanism can boost the other engine to emergency power to maintain a spindle speed of no less than 132 rpm.
6. Air Intake System
Fixed air intake with guide vanes; equipped with a vortex dust removal device at the air intake with a dust removal efficiency of 70% – 75%.
7. Maintenance & Reliability Parameters
7.1 Maintenance Interval
Major overhaul life: 6000 hours; Routine maintenance interval: approximately 2000 hours.
7.2 Maintainability
Modular unit design enables maintenance even in field environments, enhancing operational availability and reducing maintenance downtime.
D136-001-007 MOOG PDF
D136-001-007

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