Patent ID: 11892006
Assignee: CUMMINS INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 6:
7. A baffle element for a seal system of a turbomachine, the baffle element having a front surface which in use faces axially into a bearing chamber of the turbomachine, and a rear face which in use faces axially away from the bearing chamber, the baffle element comprising:
an inner portion defining a circular central opening which in use is positioned on a rotational axis of the turbomachine with a center of the central opening on the axis and the perimeter of the central opening lying in a plane transverse to the axis;
a wall upstanding from the front surface of the baffle element at a periphery of the inner portion of the baffle element; and
at least two gutter surfaces extending radially-outwardly from the inner portion through respective gaps in the wall at different respective circumferential positions about the center of the central opening,
wherein the front surface comprises a recess portion which is axially rearward with respect to the central opening of the inner portion of the baffle element, the recess portion defining a circumferentially extending oil reception channel, and
wherein the channel includes varying cross-sectional area at different circumferential positions, the cross-sectional area at the different circumferential positions being measured as the intersection of the channel with respective planes including the axis, the cross-sectional area being greatest at a circumferential position about the axis which is circumferentially spaced from the at least two gutter surfaces.