Patent ID: 11912395
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 10:
11. A propeller blade comprising:
a pressure side;
a suction side opposite to the pressure side;
a blade root that can be attached to a propeller; and
a blade tip opposite to the blade root,, wherein the pressure side is connected to the suction side with a slot that has an inlet opening on the pressure side and an outlet opening on the suction side, wherein the inlet opening has a larger surface area than the outlet opening, and
wherein the slot comprises one of the following pressure equalizing elements:
(a) an element that partially covers the inlet opening of the slot on the side of the slot closer to the blade tip; or
(b) the slot is divided into at least two slot sections along its length (Ls) by at least one partition and a connecting channel is positioned in at least one of the partitions to connect two adjacent slot sections,, wherein the propeller blade has a leading edge extending along the propeller blade's length and a trailing edge opposite to the leading edge, and a first distance (d1)—closest to the leading edge—between an edge (DLmin) of the slot closest to the blade tip and the blade tip is 9%-18.5% of the blade tip's width (Wb), and a second distance (d2)—closest to the trailing edge—between the edge of the slot (DLmin) closest to the blade tip and the blade tip is 14%-23.5% of the blade tip's width (Wb).