| 摘要 |
A rotary piston engine includes annular members forming cylinders and annular segment pistons moving on the insides of the cylinders with separating members between successive cylinders. The two pistons in each cylinder are mounted on hubs which can turn upon the other, and the hubs of the cylinders of the pistons of successive cylinders are joined by shaft portions one within the other which project through the separating members and interengage with the corresponding hubs of adjacent cylinders.
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