Abstract:
La présente invention concerne un dispositif de commande directe de pale qui comprend un stator (1), au moins un support pale (7) composé d'au moins un aimant (6) courbe, le support pale (7) et solidaire de au moins une pale (3) et en liaison pivot par rapport au rotor (8) permettant la variation de l'angle alpha des dites pales avec l'excitation du stator (1). Le stator (1) est un stator partiellement sphérique, le centre du dit stator (1) étant l'intersection de l'axe pale (22) et de l'axe rotor (20), le dit stator est radialement proche des aimants (3) pour permettre de contrôler la rotation des pales (3) autour de l'axe pale (22). Une bague magnétique (5) maintient au neutre les pales (3), le système peut être assimilé à un oscillateur mécanique en commande cyclique, le dit stator va contrôler cette oscillation en fréquence, phase et amplitude. Dispositif offrant une solution compacte, légère et robuste pour l'orientation d'un aéronef.
Abstract:
The present invention relates to a novel propeller for a marine vessel and a method of installing the hub cap to the hub. More specifically, the present invention relates to hub caps for use in connection with both fixed pitch and controllable pitch propellers. The propeller of the invention comprises a hub with a hub body (42), propeller blades, and a hub cap (66), the hub cap (66) having an outer surface provided with fins, and being fastened to the aft end of the hub body (42) by means of a connection ring (72).
Abstract:
프로펠러 피치각 제어장치 및 방법을 개시한다. 본 실시예의 일 측면에 의하면, 프로펠러의 회전수와 선박의 불규칙한 속도변화에도 불구하고, 최대효율을 갖도록 하는 피치각을 연산하여 해당 피치각을 갖도록 프로펠러의 피치각을 제어하는 장치 및 방법을 제공하는 데 일 목적이 있다.
Abstract:
This invention is a propeller with the ability to suddenly shift the thrust vector. The normal operation of this propeller is the same as the others and produces the thrust vector which is parallel to its shaft. If it is necessary, this propeller can rapidly shift the thrust vector to the arbitrary direction. It causes to have no need to the rudders. This action is done by distinctly shifting the angular velocity of each blade. During the direction shifting, each blade, considering its phase of moving, has a particular angular velocity on the spot of its connection to the hub. Therefore, in some parts of the cycle, angular velocity of the blade is added to the angular velocity of the hub and it increases the thrust propulsion and on the other part, these two velocities are subtracted from each other and it decreases the thrust propulsion. It causes to shift the direction of the thrust vector.
Abstract:
The invention relates to a method for operating an automatically driven, driverless motor vehicle (1), in particular a passenger vehicle, in which sensor data is evaluated with respect to the objects (17) to be taken into account during the route planning, said data being captured by the ambient sensors of the motor vehicle (1) which comprise at least one camera (6), said objects (17) can be classified according to at least one classifier evaluating the associated sensor data as an obstacle or no obstacle. When the object (17) can not be classified, or it can not be classified with sufficient reliability as an obstacle or not an obstacle and/or in the presence of at least one object (17) obstructing the continuation of a route of the motor vehicle (1) to a current target destination, at least one camera image (18) of the corresponding object (17) is captured by at least one of the at least one cameras (6), is transmitted to a mobile communication device (11) carried by a user (12) of the motor vehicle (1) and is represented on said device, and an input of the user (12) classifying the object (17) as an obstacle or not an obstacle is captured as classifying information, said classifying information being sent back to the motor vehicle (1) and is taken into account for the further automatic driving of the motor vehicle (1).
Abstract:
A pitch angle indicator system indicates a pitch angle of blades (201) of a propeller of a marine propulsion unit. A mechanical link (202) couples at least one of said blades (201) to a first end of a first rod (211). An indicator (216) is coupled to a second end of said first rod (211). The mechanical link (202) is configured to convert a change in said pitch angle into a rotation of said first rod (211) about its longitudinal axis (204). Said indicator (216) is configured to provide an indication of the amount of rotation of said first rod (211) about said longitudinal axis (204).
Abstract:
The main propulsion and drive system of a merchant vessel such as a freighter or tank vessel, or a military vessel is supplemented by an auxiliary propulsion and drive system that includes at least one, but preferably a pair of auxiliary propellers that flank the main propeller at port and starboard positions and each of which are attached via a drive shaft through a gear train, which can optionally include a clutch mechanism, to an auxiliary motor or motors. In order to reduce the drag when the main propeller is disabled, segments of a wake field modifying propeller duct are mounted for repositioning to form at least a partial housing or cowling that diverts the water over the exterior surface of the duct and minimizes contact with the stationary blades of the main propeller as the vessel moves through the sea when powered by the auxiliary propulsion system.
Abstract:
There is described a propeller (1) of the type comprising an external cylindrical casing (2) coupled directly or indirectly to an engine shaft in a manner rotatable about the axis (X) of the propeller, and at least one blade (3) provided with at least one fluid dynamic surface (4) constrained to a related blade shaft (5), which is in turn constrained to said external cylindrical casing (2) to be driven in rotation about the axis of the propeller. The blade shaft (5) has its axis (Y) which extends in a direction incident to the axis (X) of the propeller and the at least one fluid dynamic surface is driven by the related blade shaft in rotation about the axis of the propeller. The propeller is characterized by comprising at least one guide constraint (11, 12) between the at least one fluid dynamic surface (4) and the respective blade shaft (5), said at least one guide constraint comprising at least one first section (11a) and at least one second section (11b). The at least one first section (11a) is shaped to allow the translation or the roto-translation of the fluid dynamic surface (4) relative to the blade shaft (5), and vice versa, and the at least one second section (11b) is shaped to allow the roto-translation of the fluid dynamic surface (4) relative to the blade shaft (5), and vice versa.
Abstract:
The present invention includes a Computer Assisted Reset (CAR) system that allows a central operations team to remotely reset turbine faults across multiple wind turbine platforms and SCADA systems with a single interface. The system also allows automatic resets to occur. One aspect of the invention includes a Modbus to OPC Translator. The translator permits the implementation of a system where a PLC located at wind turbine control sites can accept control messages or commands organized or formatted in accordance with the Modbus protocol and sent over an Internet Protocol connection, with the translator receiving the requests through the PLC and generating an appropriate OPC ("OLE Process Control") request. The OPC request may then be passed onto a corresponding OPC server residing in the SCADA system for each wind turbine control site.
Abstract:
A vertical takeoff and landing aircraft having a fuselage with, preferably, three wings and six synchronously tilt-able propulsion units, each one mounted above, below, or on each half of the aforementioned three wings. The propulsion units are oriented vertically for vertical flight and horizontally for forward flight. Each propulsion unit comprises a propeller having a plurality of blades, where the pitch angle associated with the distal end of each blade and the proximal end of each blade are independently adjustable. As such, each of the propellers can be adjusted to exhibit a first blade pitch angle distribution optimized for vertical flight and a second blade pitch angle distribution optimized for forward flight.