Rotary compressor

Rotary piston displacement device (1, 2, 3) with a displacement device housing (4), in which an approximately cylindrical receiving chamber (5) is provided, for an approximately cylindrical rotary piston (6) having a smaller external diameter and mounted eccentrically to the receiving chamber (5) on an eccentric drive (7) which form an approximately sickle-shaped interspace between an outer wall of the piston and an inner wall of the receiving chamber (5), the interspace is divided by a separating crosspiece (8) arranged between an inlet opening (11) located in the housing (4) and an outlet opening (12) into a pressure chamber (9) and a suction chamber (10) connected to outer and inner fixing locations for the separating crosspiece (8), located respectively on the housing (4) and the rotary piston (6), which are arranged mutually offset in a peripheral direction of the rotary piston (6), and the separating crosspiece (8) being formed of a flexible material, wherein the separating crosspiece (8) has bending sections near two fixing ends and an intermediate section (22) having a greater bending stiffness than the bending sections is provided therebetween, and the two bending sections of the separating crosspiece have a smaller cross section than the intermediate section (22).

Rotary piston displacement device (1, 2, 3) with a displacement device housing (4), in which an approximately cylindrical receiving chamber (5) is provided, for an approximately cylindrical rotary piston (6) having a smaller external diameter and mounted eccentrically to the receiving chamber (5) on an eccentric drive (7) which form an approximately sickle-shaped interspace between an outer wall of the piston and an inner wall of the receiving chamber (5), the interspace is divided by a separating crosspiece (8) arranged between an inlet opening (11) located in the housing (4) and an outlet opening (12) into a pressure chamber (9) and a suction chamber (10) connected to outer and inner fixing locations for the separating crosspiece (8), located respectively on the housing (4) and the rotary piston (6), which are arranged mutually offset in a peripheral direction of the rotary piston (6), and the separating crosspiece (8) being formed of a flexible material, wherein the separating crosspiece (8) has bending sections near two fixing ends and an intermediate section (22) having a greater bending stiffness than the bending sections is provided therebetween, and the intermediate section (22) of the separating crosspiece (8) has a reinforcement, comprising an armor inlay (21), for increasing a compression stiffness in a connecting plane between the fixing ends.

Rotary piston displacement device (1, 2, 3) with a displacement device housing (4), in which an approximately cylindrical receiving chamber (5) is provided, for an approximately cylindrical rotary piston (6) having a smaller external diameter and mounted eccentrically to the receiving chamber (5) on an eccentric drive (7) which form an approximately sickle-shaped interspace between an outer wall of the piston and an inner wall of the receiving chamber (5), the interspace is divided by a separating crosspiece (8) arranged between an inlet opening (11) located in the housing (4) and an outlet opening (12) into a pressure chamber (9) and a suction chamber (10) connected to outer and inner fixing locations for the separating crosspiece (8), located respectively on the housing (4) and the rotary piston (6), which are arranged mutually offset in a peripheral direction of the rotary piston (6), and the separating crosspiece (8) being formed of a flexible material, wherein the separating crosspiece (8) has bending sections near two fixing ends and an intermediate section (22) having a greater bending stiffness than the bending sections is provided therebetween, and wherein at least one peripherally closed seal (16) is provided laterally near the rotary piston (6) between at least one sidewall thereof and the housing (4) or respectively a drive shaft guide (13).