公开(公告)号：EP2625386A2

公开(公告)日：2013-08-14

申请号：EP11764773.5

申请日：2011-10-07

申请人： Robert Bosch GmbH

发明人： KUNATH, Sando ,  AMESOEDER, Dieter ,  SKRYNSKI, Evgenij

IPC分类号： F01C3/08

CPC分类号： F16H39/06 ,  F03C2/08 ,  F04C3/085 ,  F04C11/003 ,  F04C14/14

摘要： The invention is based on a rotary piston machine which operates as a pump, a compressor or a motor and which has a rotor (2, 104) and a stator (4, 101), wherein the stator (4, 101) is arranged opposite the rotor (2, 104). The rotor (2, 104) has a first end surface (6) with a first toothing (8), and the stator (4, 101) has a second end surface (14) with a second toothing (16). The first toothing (8) and the second toothing (16) are formed in each case from at least one tooth (10, 18) and one tooth space (12, 20). The stator (4, 101) is arranged so as to be positionally fixed with respect to the rotor (2, 104). The toothings (8, 16) of the rotor (2, 104) and of the stator (4, 101) are in engagement with one another such that first working chambers (22) are formed as a result of meshing of the teeth (10) of the first toothing (8) and the teeth (18) of the second toothing (16), wherein volumes formed by the first working chambers (22) are changed by the meshing of the teeth (10, 18). The rotor (2, 104) has a first axis of rotation (I). The stator (4, 101) has a first central axis (II). The first axis of rotation (I) and the first central axis (II) enclose an angle (φ) which is not equal to 0°. The rotor (2, 104) is driven by a drive shaft (24) with a sliding plane (26), wherein the sliding plane (26) is perpendicular to the first axis of rotation (I), such that a rotation of the drive shaft (24) leads to wobbling of the rotor (2, 104) with respect to the stator (4, 101), and/or wobbling of the rotor (2, 104) leads to a rotation of the drive shaft (24). According to the invention, the first end surface (6) of the rotor (2, 104) has a third toothing (28) which is spatially separate from the first toothing (8). The second end surface (14) of the stator (4, 101) has a fourth toothing (34) which is spatially separate from the second toothing (16). The third toothing (28) and the fourth toothing (34) are formed in each case at least from one tooth (30, 36) and one tooth space (32, 38), wherein the third toothing (28) and the fourth toothing (34) are in engagement with one another such that at least one second working chamber (40) is formed as a result of meshing of the teeth (30) of the third toothing (28) and the teeth (36) of the fourth toothing (34), wherein the volume formed by the at least one second working chamber (40) is changed by the meshing of the teeth (30, 36).