| 摘要 |
The rotary-piston machine comprises three or more rotary pistons (26) forming a unit (20) inside a gastight chamber (22) in a housing (24). These are similar, and form straight prisms with curved surfaces (28,30) to two different radii, those of the same radius curving through the same angle, and joining alternately together at connecting points (32) tangentially. They are fixed to synchronised shafts (34) rotating in the same direction, while their end faces are in line and they enclose a working chamber (38) between them. The centre distance between their shafts is greater than the sum of the two radii by an amount equal to the gap between adjacent pistons. Each gap contains a sealing strip (42) comprising two parallel sealing bars (44,46) whose dia. is greater than the gap width, and joined by a connecting portion (48) narrower than the latter, its length being equal to that of the pistons.
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