Table 4 Overall DOE analysis data
From: Performance Analysis and Improvement of Flat Torque Converters Using DOE Method
Indicator | Influence level | Turbine inlet angle \(\beta_{\text{T1}}\) | Turbine outlet angle \(\beta_{\text{T2}}\) | Impeller inlet angle \(\beta_{\text{I1}}\) | Impeller outlet angle \(\beta_{\text{I2}}\) | Stator inlet angle \(\beta_{\text{S1}}\) | Stator outlet angle \(\beta_{\text{S2}}\) |
|---|---|---|---|---|---|---|---|
Stall torque ratio \(Tr_{0}\) | K 1 | 1.80634 | 1.78240 | 1.79766 | 1.80640 | 1.80668 | 1.81516 |
K 2 | 1.79884 | 1.79020 | 1.80532 | 1.80648 | 1.79448 | 1.81772 | |
K 3 | 1.81532 | 1.80352 | 1.80756 | 1.81046 | 1.81956 | 1.80350 | |
K 4 | 1.80590 | 1.82156 | 1.79954 | 1.80156 | 1.79650 | 1.79504 | |
K 5 | 1.78864 | 1.81736 | 1.80496 | 1.79014 | 1.79782 | 1.78362 | |
\({\text{R}}\) | 0.02668 | 0.03916 | 0.00990 | 0.02032 | 0.02508 | 0.03410 | |
\({\text{C}}\) | 17% | 25% | 7% | 13% | 16% | 22% | |
Peak efficiency \(\eta^{*}\) (%) | K 1 | 81.436 | 79.188 | 80.190 | 80.420 | 80.836 | 81.458 |
K 2 | 79.656 | 79.896 | 81.136 | 80.366 | 80.060 | 81.324 | |
K 3 | 81.068 | 80.880 | 79.904 | 81.378 | 81.272 | 80.678 | |
K 4 | 80.994 | 81.214 | 80.028 | 80.670 | 80.246 | 79.804 | |
K 5 | 79.014 | 81.390 | 80.910 | 79.734 | 80.154 | 79.304 | |
\({\text{R}}\) | 2.022 | 2.202 | 1.232 | 1.644 | 1.212 | 2.154 | |
\({\text{C}}\) | 19% | 21% | 12% | 16% | 12% | 20% |