Control apparatus for angling guide vanes of a torque converter
a technology of control apparatus and torque converter, which is applied in the direction of mechanical apparatus, engine components, machines/engines, etc., can solve the problems of component failure and customer satisfaction reduction
Inactive Publication Date: 2017-01-05
GENERAL ELECTRIC CO
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- Application Information
AI Technical Summary
Benefits of technology
The invention provides a control apparatus for angling guide vanes of a torque converter in a gas turbine engine, which includes a modeling unit and a controller. The modeling unit receives data on the current condition of the engine and determines the power supplied by the starting motor. The controller compares this power with the rating of the starting motor and angles the guide vanes accordingly. The system also includes a torque converter with guide vanes that are angled at different angles based on the speed of the output shaft. The technical effects of the invention include improved engine starting and better power conversion.
Problems solved by technology
Such startup operations may lead to component failures due to either electrical or mechanical overloading of the starting motor, torque converter, or couplings.
Decreasing the acceleration of the turbine or synchronous motor may reduce the likelihood of component failure, however, such a course may also lead to decreased customer satisfaction due to increased startup times.
Method used
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Embodiment Construction
[0013]With reference to FIG. 1, a system 10 is provided. The system includes a torque converter 20 and a starting motor 30. The torque converter 20 is configured to convert input torque into output torque and has guide vanes 21 that can be angled at various angles to promote such torque conversion. The guide vanes 21 themselves do not admit or prevent admission of oil but instead direct oil flow to create more or less torque in the torque converter 20. Where the guide vane 21 angle is large or open, the flow of fluid is permitted such that a relatively substantial fraction of the input torque is convertible to output torque. By contrast, where the guide vane 21 angle is small or closed, the flow of fluid is prevented such that a relatively small fraction of the input torque is convertible to output torque.
[0014]The starting motor 30 transmits the input torque to the torque converter 20 via an input shaft 35 to which the starting motor 30 and the torque converter 20 are each coupled....
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A control apparatus for angling guide vanes of a torque converter is provided and includes a modeling unit configured to receive current condition data, to determine a current input power supplied by a starting motor from the current condition data and to output a result of the determination as a control signal and a controller, which is coupled to the modeling unit and thereby receptive of the control signal. The controller is configured to execute a comparison of the current input power with a rating of the starting motor and to angle the guide vanes of the torque converter at an angle in accordance with a result of the comparison.
Description
BACKGROUND OF THE INVENTION[0001]The subject matter disclosed herein relates to a control apparatus for angling guide vanes of a torque converter.[0002]Torque converters are used for many applications such as starting turbo-machines of gas turbine engines or accelerating large synchronous motors to speed prior to connecting them to the electrical grid. In these applications, a large motor is coupled to one side of the torque converter with the other side being coupled to a drive shaft of the gas turbine engine or motor. The torque converter converts the torque provided by the starting motor into startup torque for the gas turbine engine or a large synchronous motor. Such startup operations may lead to component failures due to either electrical or mechanical overloading of the starting motor, torque converter, or couplings. Decreasing the acceleration of the turbine or synchronous motor may reduce the likelihood of component failure, however, such a course may also lead to decreased...
Claims
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IPC IPC(8): F02C7/275F02C3/04
CPCF02C7/268F02C7/275F02C9/28F02C7/262F02C7/27F02C3/04F05D2220/32F05D2240/35F05D2240/60F05D2260/402F05D2260/85
InventorFULLER, JASON DEANMINTO, KARL DEANALLEN, JUSTIN AARON
OwnerGENERAL ELECTRIC CO