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Minimum and maximum area of the working chamber in mm2.
| Ach-P-min | Ach-P-max | Ach-S-min | Ach-S-max | Ach-CH-min | Ach-CH-max | ||
|---|---|---|---|---|---|---|---|
| Variant I | 48.7266 | 108.9258 | 48.3736 | 108.3422 | 47.9652 | 107.9052 | |
| Variant II | 9 teeth | 32.7636 | 120.5814 | 33.2226 | 121.0698 | 32.9421 | 120.6625 |
| 14 teeth | 33.4174 | 121.6259 | 33.4001 | 121.3398 | |||
| δAch-I-II | 9 teeth | –32.76% | 10.70% | –31.32% | 11.75% | –31.32% | 11.75% |
| 14 teeth | –30.92% | 12.26% | –30.36% | 12.45% | |||
| δAch-9–14 | – | – | 0.58% | 0.46% | 1.39% | 0.56% | |
