Watercraft vehicle and method of manoeuvring the vehicle

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United States of America Patent

PATENT NO 11858606
APP PUB NO 20230257089A1
SERIAL NO

18044191

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention regards a watercraft vehicle (1) having a propeller shaft (9) coupled to a motor (3) and a propeller (7) forming a propeller disc (11) having a hub (17). A first blade (8) of the propeller (7) is hingedly coupled to a first oblique lag-pitch hinge (22′) of the hub (17) and a second blade (10) of the propeller (7) is hingedly coupled to a second oblique lag-pitch hinge (22″) of the hub (17). The first oblique lag-pitch hinge (22′) being oriented in a direction oblique to the axis of rotation (RX) and parallel with the second oblique lag-pitch hinge (22″). A control circuitry (5) provides a first thrust (T) in a first arc segment (13′) of the propeller disc (11) and provides a second thrust (T″) in a second arc segment (13″) of the propeller disc (11) by controlling a rate of change of shaft (9) rotational velocity, wherein a first propeller blade pitch change is achieved about the first oblique lag-pitch hinge (22′) and a second propeller blade pitch change is achieved about the second oblique lag-pitch hinge (22″). The present invention also regards a method of manoeuvring the watercraft vehicle (1).

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Patent Owner(s)

Patent OwnerAddress
SAAB AB581 88 LINKÖPING

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rydell, Anders Linköping, SE 2 0

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