Aktiengesellschaft Kuehnle, Kopp & Kausch

Christiane Romuss

Arno Forster

Gerhard Oberholz

An internal axis rotary piston machine containing in a housing (2), an outer rotor (26), with which an inner rotor (8) having n engagement parts (9) is in meshing engagement, there being n+1 recesses between engagement parts (34) of the outer rotor (26). The inner rotor (8) and outer rotor (26) rotate uniformly at a speed ratio of (n+1):n. There is contact of the tooth-flank type between inside faces of the outer rotor (26) and outside faces of the inner rotor (8) such that working spaces (66) are formed and move past inlet and outlet orifices (63, 64) of the housing (2). The rotary piston machine is designed in such a way that cost-effective production can be achieved while assuring a simple construction. To achieve this, it is proposed that the housing (2) should have, on the drive side, a bottom (4) formed in one piece and should be made pot-shaped. The bottom (4) has an outer face for a bearing (30) of the outer rotor (26), especially on a ring (28) extending axially into the end of the outer rotor (6).

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Beindersheim, Germany

Christiane Romuss