/ From the CDC Community club.china.com /
WS-18A turbofan engine appearance
Grades WS-18A
Use civil turbofan engines
Type of turbofan engine
Country China
Research and development units and manufacturers 624 and engine plant in Chengdu, Xi'an engine plant joint development.
H-H-6k object installed oil -6 large military transport aircraft to fly west for the transport police transport -20 -20 -20 tanker
Development of
WS-18A is 624 and the engine plant in Chengdu, Xi'an engine plant jointly developed. In the WS-18 (imitation D-30KP), based on the use of modified-developed high bypass ratio turbofan engines. 80 percent between the common parts. Structural improvements were characterized by the WS-18-based reference design so the line of the combustion chamber, improving the design of a pneumatic spray nozzle with a circular chamber, while the use of advanced design technology and manufacturing processes, fans and high-pressure compressor for the conduct of modern improvements, such as electron beam welding technology and the ring-shaped tenon and dovetail plate connection technology,
WS-18A turbofan engine to maintain WS-18 outside dimensions and accessories under the same basic layout, the country inherited a mature technology, based on a large number of mature through the use of advanced technology and a number of pre-research results, the WS -18 to modernize to improve, greatly improve the technical performance of the engine.
WS-18A turbofan engine in March 200X core machine for the first time trial, a large number of core machine reliability and durability tests, greatly improved hot end component life, 200X prototype for the first time in June the ground running and begin to stand trial. Accelerate the maturity of the engine, extend component life, reduce production costs and logistics costs. Before the required test flight was completed in August 2009, at the beginning of 2009, in IL-76 on the first flight in 2010 to complete the design approval test. Scheduled for late 2012 production models. For the West to fly military transport aircraft for the transport of large initial batch-type -20
WS-18 engine plant in Chengdu, the generic D-30KP, WS-18 first flight successfully installed with the 200X, has been identified by the domestic engineering technology, granted in production.
WS-18A
Structures and systems
Inlet titanium casing. Fixed inlet cone. 26 import guide vanes.
Three axial fans, driven by the low pressure turbine. Materials are mainly titanium. Structure for the disc rotor drum fan, 3 fan rotor welding with electron beam welding as a whole. , No. 1 fan blade with the middle damping boss leaves are ring-shaped tenon and dovetail plate connection, the maximum speed of 5380r/min. Full outer culvert, with a mixer.
Intermediate casing titanium casing is connected to the aircraft for the load-bearing structure. Attachment shaft passed through the casing at the bottom of the engine accessories.
Axial flow compressor 11, driven by the high-pressure turbine. Level off the casing. The first two rotor blades with damping boss. 1 to 8 plate welding with electron beam welding as a whole. 9 ~ 11, compared with single-disc, with more root length with the first eight plate bolts together. 1 to 3 rotor blades fixed on the wheel of the axial dovetail slot, 4 to 11 blades are mounted on the wheel with a dovetail tenon ring dovetail slot. All rotor blades can be replaced individually, are located at all levels of the hole finders checkpoints. In addition to axis, after the casing, 9 to 11 rotor blades and disk, 10 ~ 11 stator blades are of steel, the rest of the structure of titanium alloy. In speed 7900 ~ 9600r/min, the import program guide vanes can be scheduled up to 30 ° rotation angle. In the transition state, level 5 and level 6 deflated. In addition, the rotor blades in a hole surrounded by a wall composed of circular chamber. Maximum speed 10900r/min.
Short circular combustion chamber. Flame tube wall are segmented film cooling. Flame tube head 20 high-pressure air atomizing nozzle, smoke-free combustion, with a uniform exit temperature. Combustion chamber dual ignition system
Axial high-pressure turbine 2. Blades are cooled. The first two rotor blades with a crown.
Axial low-pressure turbine 4. Leaves without cooling, with crown. Han plate from the outside air cooling.
Low-pressure turbine nozzle at the downstream end of the rear supporting frame leading to the aircraft after the engine bearing components. Frame equipped with 12 thermocouples and
16 inlet hopper mixer. Fixed area of ​​the main nozzle.
Digital engine control system uses electronic control system. Integrated control turbine speed and fuel.
Integrated type fuel system, a gear-type fuel pump, centrifugal regulator, fuel controller, oil filter and auxiliary oil pump. Use T-1 and TC-1
Fuel line ГOCT10227-86 (equivalent to DERD 2494 or Air3405 / B).
Closed oil system, oil to tank. Based fuel - oil coolers, centrifugal gas separator and metal shavings warning devices. Oil rules
Grid MK8 and MK8П (line ГOCT6467-66 mineral oil) or ГBHИИ НП50-1-4Ф (line ГOCT1307-67
Synthetic oil), consumption of 1.5kg / h.
Starting air turbine starter system, gas supply from the ground, auxiliary power unit or engine work, air supply. At -60 ℃ to +50 ℃
Ambient temperature range, slow speed start-up to the time of 40 ~ 80s. 9000m the following effects of the air by windmill
Start.
High-energy ignition system, ignition system, two ignition.
Ice protection system from the compressor section 6 or section 11 of the release of hot air inlet guide vane anti-ice and imports.
7 pivot bearing support system. High and low pressure rotor are using roll bar plus 3 ball bearings plus roller fulcrum-style bar, and another one between the shaft bearings.
WS-18A
Technical Data
Takeoff thrust (daN) 13200 (to keep to 21 ℃
Cruise thrust (H = 11000m, M = 0.8, daN) 3100
Takeoff fuel consumption [kg / (daN · h)] 0.50
Cruise fuel consumption [kg / (daN · h)] 0.71
Thrust-weight ratio 5.01 (without thrust reversers)
Air flow (87.9% N2, kg / s) 320
Bypass Ratio 2.42
Total pressure ratio (96% N1) 21
Turbine inlet temperature (℃
1122
Length (mm) 5100 (with a thrust reverser)
Diameter (mm) 1455 (Import)
1560 (max)
Mass (kg) 2600? (With thrust reversers)
here take a look
---------- Post added at 12:03 AM ---------- Previous post was at 12:03 AM ----------
/ From the CDC Community club.china.com /
WS-18A turbofan engine appearance
Grades WS-18A
Use civil turbofan engines
Type of turbofan engine
Country China
Research and development units and manufacturers 624 and engine plant in Chengdu, Xi'an engine plant joint development.
H-H-6k object installed oil -6 large military transport aircraft to fly west for the transport police transport -20 -20 -20 tanker
Development of
WS-18A is 624 and the engine plant in Chengdu, Xi'an engine plant jointly developed. In the WS-18 (imitation D-30KP), based on the use of modified-developed high bypass ratio turbofan engines. 80 percent between the common parts. Structural improvements were characterized by the WS-18-based reference design so the line of the combustion chamber, improving the design of a pneumatic spray nozzle with a circular chamber, while the use of advanced design technology and manufacturing processes, fans and high-pressure compressor for the conduct of modern improvements, such as electron beam welding technology and the ring-shaped tenon and dovetail plate connection technology,
WS-18A turbofan engine to maintain WS-18 outside dimensions and accessories under the same basic layout, the country inherited a mature technology, based on a large number of mature through the use of advanced technology and a number of pre-research results, the WS -18 to modernize to improve, greatly improve the technical performance of the engine.
WS-18A turbofan engine in March 200X core machine for the first time trial, a large number of core machine reliability and durability tests, greatly improved hot end component life, 200X prototype for the first time in June the ground running and begin to stand trial. Accelerate the maturity of the engine, extend component life, reduce production costs and logistics costs. Before the required test flight was completed in August 2009, at the beginning of 2009, in IL-76 on the first flight in 2010 to complete the design approval test. Scheduled for late 2012 production models. For the West to fly military transport aircraft for the transport of large initial batch-type -20
WS-18 engine plant in Chengdu, the generic D-30KP, WS-18 first flight successfully installed with the 200X, has been identified by the domestic engineering technology, granted in production.
WS-18A
Structures and systems
Inlet titanium casing. Fixed inlet cone. 26 import guide vanes.
Three axial fans, driven by the low pressure turbine. Materials are mainly titanium. Structure for the disc rotor drum fan, 3 fan rotor welding with electron beam welding as a whole. , No. 1 fan blade with the middle damping boss leaves are ring-shaped tenon and dovetail plate connection, the maximum speed of 5380r/min. Full outer culvert, with a mixer.
Intermediate casing titanium casing is connected to the aircraft for the load-bearing structure. Attachment shaft passed through the casing at the bottom of the engine accessories.
Axial flow compressor 11, driven by the high-pressure turbine. Level off the casing. The first two rotor blades with damping boss. 1 to 8 plate welding with electron beam welding as a whole. 9 ~ 11, compared with single-disc, with more root length with the first eight plate bolts together. 1 to 3 rotor blades fixed on the wheel of the axial dovetail slot, 4 to 11 blades are mounted on the wheel with a dovetail tenon ring dovetail slot. All rotor blades can be replaced individually, are located at all levels of the hole finders checkpoints. In addition to axis, after the casing, 9 to 11 rotor blades and disk, 10 ~ 11 stator blades are of steel, the rest of the structure of titanium alloy. In speed 7900 ~ 9600r/min, the import program guide vanes can be scheduled up to 30 ° rotation angle. In the transition state, level 5 and level 6 deflated. In addition, the rotor blades in a hole surrounded by a wall composed of circular chamber. Maximum speed 10900r/min.
Short circular combustion chamber. Flame tube wall are segmented film cooling. Flame tube head 20 high-pressure air atomizing nozzle, smoke-free combustion, with a uniform exit temperature. Combustion chamber dual ignition system
Axial high-pressure turbine 2. Blades are cooled. The first two rotor blades with a crown.
Axial low-pressure turbine 4. Leaves without cooling, with crown. Han plate from the outside air cooling.
Low-pressure turbine nozzle at the downstream end of the rear supporting frame leading to the aircraft after the engine bearing components. Frame equipped with 12 thermocouples and
16 inlet hopper mixer. Fixed area of ​​the main nozzle.
Digital engine control system uses electronic control system. Integrated control turbine speed and fuel.
Integrated type fuel system, a gear-type fuel pump, centrifugal regulator, fuel controller, oil filter and auxiliary oil pump. Use T-1 and TC-1
Fuel line ГOCT10227-86 (equivalent to DERD 2494 or Air3405 / B).
Closed oil system, oil to tank. Based fuel - oil coolers, centrifugal gas separator and metal shavings warning devices. Oil rules
Grid MK8 and MK8П (line ГOCT6467-66 mineral oil) or ГBHИИ НП50-1-4Ф (line ГOCT1307-67
Synthetic oil), consumption of 1.5kg / h.
Starting air turbine starter system, gas supply from the ground, auxiliary power unit or engine work, air supply. At -60 ℃ to +50 ℃
Ambient temperature range, slow speed start-up to the time of 40 ~ 80s. 9000m the following effects of the air by windmill
Start.
High-energy ignition system, ignition system, two ignition.
Ice protection system from the compressor section 6 or section 11 of the release of hot air inlet guide vane anti-ice and imports.
7 pivot bearing support system. High and low pressure rotor are using roll bar plus 3 ball bearings plus roller fulcrum-style bar, and another one between the shaft bearings.
WS-18A
Technical Data
Takeoff thrust (daN) 13200 (to keep to 21 ℃
Cruise thrust (H = 11000m, M = 0.8, daN) 3100
Takeoff fuel consumption [kg / (daN · h)] 0.50
Cruise fuel consumption [kg / (daN · h)] 0.71
Thrust-weight ratio 5.01 (without thrust reversers)
Air flow (87.9% N2, kg / s) 320
Bypass Ratio 2.42
Total pressure ratio (96% N1) 21
Turbine inlet temperature (℃
1122
Length (mm) 5100 (with a thrust reverser)
Diameter (mm) 1455 (Import)
1560 (max)
Mass (kg) 2600? (With thrust reversers)
here take a look