Design, Fabrication and Test of an Aerodynamic Torque Converter.
Final rept. 15 Oct 70-15 Nov 75,
ROHR INDUSTRIES INC CHULA VISTA CALIF
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An Aerodynamic Torque Converter ATC using an axial configuration has been designed, built and tested for use in an advanced gas turbine auxiliary power system. The ATC, which resembles hydraulic torque converters in principle of operation, uses a compressible fluid as the working media instead of an incompressible liquid. A portion of the auxiliary engine compressor discharge air is circulated to the ATC and returned to the gas turbine cycle at a higher temperature. This eliminates the need for a heat exchanger to remove transmission losses and returns the losses regeneratively to the gas turbine cycle. The ATC for this application was designed to transmit 280 hp at 82,000 rpm with peak efficiency of 80 percent at a speed ratio of 11. Due to mechanical difficulties with the input drive system, testing was completed at 57,000 rpm and at reduced pressure. The maximum measured efficiency was 68.5 percent at an input power of 87 HP. Design details and test results are presented. Author
- Couplers, Fasteners and Joints
- Jet and Gas Turbine Engines