Variable Inlet Air Vanes help guide inlet airflow to enhance engine performance. Assembly located in front of Low Pressure Compressor (LPC), consisting of 43 stationary leading-edge vanes and variable trailing flaps (rotate -10 to +60 degrees). Variable Differential Transformers (LVDTs) on actuator ring drivetwin hydraulic actuators.

Minimizes variable bypass valve (VBV) flow and pressure levels thereby reducing associated flow noise. Average power increase of 2 MW. Greater than 2% fuel efficiency increase at 70% power. Exhaust energy increase of 3%. Flaps close during large power reductions to quickly reduce LPC flow rate, helping maintain LPC stall margin.

GE has introduced the first modern production gas turbine in the power generation industry to employ off-engine intercooling technology with the use of an external heat exchanger, the LMS100™. This gas turbine provides the highest simple cycle efficiency in the Industry today and comes on the heels of GE’s introduction of the highest combined

2019年5月14日 · We have worked through most of the issues but we are currently getting stumped by the VBV Voltage Sum Fault. We get this alarm at random times mostly on a start up or shut down. We have Woodward MicroNet Plus controllers the card part number that drives the LVDTs is 5501-1432

可调放气活门（VBV）系统让一部分低压压气机（LPC）出口空气流入风扇风流。 在快速加速过程中，VBV系统防止低压压气机失速。 在发动机低转速时和在反推力装置操作过程中，VBV系统把不需要的物质（例如水分或砂石）排斥到高压压气机（HPC）之外。 这样防止损坏发动机和提高发动机的稳定性。 VSV：可调静止叶片。 VSV系统调节高压压气机内的空气流量。 这就增加压气机效率和喘振裕度。 TBV :Transmit bleed valve 过度放气活门 过渡放气活门（TBV）系统控制流 …

2014年3月10日 · We stroked/calibrated VBV with high speed crank and it shown a position f/b difference of 1-2% only. But with the startup it went to the previous condition. We checked on engine and off engine cables for recommended resistance and found it is matching.

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The Application Control Package for GE LM6000 gas turbine generator drive system, includes: Analog inputs, 4-20 mA: • P0 Inlet Ambient Air Pressure • P2 LPC Inlet pressure (with VIGVs) • P25 HPC Inlet Pressure • PS3 HPC Discharge Pressure (CDP) • P48 Thrust Balance Pressure • Gas Fuel Supply Pressure • Gas Fuel Valve Position Feedback

Emerson’s gas turbine automation portfolio includes a fully-engineered and field-proven controls retrofit for LM6000 SAC and DLE turbines. Emerson’s OvationTM system features specially designed high-speed algorithms to execute the demanding operational requirements for …

GE90 & GEnx use inward-opening VBV doors. • Improved particle trajectory CFD fidelity provides better understanding of particle tracking through Fan, Booster and Goose Neck Duct into HPC. More effective sand & ice shed particle extraction prior to HPC by optimizing Booster & GND flowpath, and VBV configuration designs.