Patent ID: 6826907
Filing Date: 2004-12-07
Classification: F16D

Abstract:
Hydrodynamic coupling (1; 1.2; 1.3);having a primary wheel (2; 2.2; 2.3) and a secondary wheel (3; 3.2; 3.3), which together form a toroidal working chamber (4; 4.2; 4.3); having a shell (5; 5.2; 5.3) that is connected to the primary wheel (2; 2.2; 2.3) in a rotationally fixed manner and encloses the secondary wheel (3; 3.2; 3.3) in the axial direction and at least partially in the radial direction while forming an intermediate chamber (6; 6.2; 6.3); having at least one passage (8; 8.2; 8.3) that is arranged in the radially outer region (9; 9.2; 9.3) of the shell (5; 5.2; 5.3); characterized through the following features: having an additional, second shell (10; 10.2; 10.3) coupled to the shell (5; 5.2; 5.3) and/or to the primary wheel (2; 2.2; 2.3) in a rotationally fixed manner while forming an additional, second intermediate chamber (11; 11.2; 11.3); the second intermediate chamber (11; 11.2; 11.3) is connected to the first intermediate chamber (6; 6.2; 6.3) via the passage or passages (8; 8.2; 8.3); having at least one passage (13; 13.2; 13.3) in the radially outer region (14; 14.2; 14.3) of the second shell (10; 10.2; 10.3), the passage or passages (8; 8.2; 8.3) in the first shell (5; 5.2; 5.3) and the passage or passages (13; 13.2; 13.3) of the second shell (10; 10.2; 10.3) being offset in relation to one another, when viewed from the peripheral direction.