Abrégé

The present invention relates to a blade (9) for a propeller (5), formed by at least three sections (23a, 23b, 23c) extending consecutively directly one after the other from a first end (E1) of the blade (9) forming a blade root to a second end (E2) of the blade (9) forming a blade tip, the pitch angle of each section (23b, 23c) directly following a preceding section (23a, 23b) being at least 5 degrees lower than the pitch angle of the preceding section (23a, 23b). The invention also relates to a propeller (5) comprising at least two such blades (9), as well as to a vehicle, preferably a marine vehicle, more preferably a ship, comprising such a propeller (5), and a motor configured to drive the propeller (5), wherein the motor is preferably an electric motor.

Classes IPC  ?

• B63H 1/26 - Pales
• B63H 3/00 - Hélices à pales orientables

Abrégé

The present invention relates to a propeller (5), preferably for hydrodynamic propulsion, comprising a hub (7) rotating about an axis of rotation (X), from which hub (7) at least three blades (9) extend, wherein the blades (9) are angularly evenly distributed from the hub (7) about the axis of rotation (X), and wherein the propeller (5) is characterised in that the blades (9) are axially offset along the axis of rotation (X) relative to one another. The invention also relates to a vehicle, preferably a marine vehicle, more preferably a ship, comprising such a propeller (5), and to a motor configured to drive the propeller (5), wherein the motor is preferably an electric motor.

Classes IPC  ?

• B63H 1/14 - Hélices
• B63H 1/15 - Hélices comportant des moyens pour amortir des vibrations
• B63H 1/28 - Autres moyens pour améliorer le rendement des hélices

Abrégé

The present invention relates to a propeller (1) which comprises a hub (2) and a set of blades (4), characterized in that: - said hub (2) has a thickness substantially equal to that of the blades (4); - each blade (4) is connected to the hub (2) by an intermediate plate (3) which comprises a first edge (30) for connection to the hub (2) and a second edge (32) for connection to the associated blade (4), this second edge (32) having a length close or equal to that of the base (40) of the blade; - each of the plates (3) firstly forming, with one (23) of the two major faces (22, 23) of the hub (2), referred to as the "front face", the same first angle V of between 60 and 120° and, on the other hand, with each blade (4), the same second angle W of between 60 and 120°.

Classes IPC  ?

• B63H 1/20 - MoyeuxFixation des pales