Manufacturing considerations are as likely to influence size choices as the need to match the ‘cellular’ environment of the waves likely to be encountered. However, the determination of blade size and numbers is more influenced by an analysis of the intended working environment, i.e., the wave dynamics that are most likely to be encountered.
Preferably, the fluid is water, for example the fluid is sea water at ambient or usual environmental conditions. The majority of such devices have focused on capturing the energy contained in the movement of water in the vertical plane. Correspondingly, any single-plane propulsive device will not convert energy from water flows that are co-planar with the device. The reason for this is that if there are many definable ‘cells’ impacting on a single blade at any one time, then cells containing opposing flow vectors will cancel each other out, reducing the net thrust on the blade surface. Since the objective of any such device is to convert a proportion of the kinetic energy contained in the movement of water particles, it follows that the device must offer a resistive force that interacts with a water particle’s movement in any plane.
Dolor Neuropatico Curso
Within the present specification, the term “positively buoyant” means having a weight less than the weight of the fluid displaced. Within the present specification, the term “negatively buoyant” means having a weight more than the weight of the fluid displaced. By contrast, one of the main objectives of the present invention is to combine two of the above essential elements of a marine craft, such that the buoyancy means also provides the propulsive means, with commensurate savings in complexity, weight, and therefore costs. 1 shows an exemplary linear propulsion device of the invention including an array of multiple wave propulsion modules.
In a preferred embodiment of the invention, the second blade is constructed so as to exhibit positive buoyancy. As described above, in one preferred embodiment, the first blade may be constructed so that its positive buoyancy negates the need for a separate mechanical spring return means. Preferably, the second blade is similarly provided with limiting means that restricts its radial movement about its pivot axis. The water particles that form these peaks collapse under gravitational force, forcing adjacent particles to repeat the wave formation, following a curved trajectory that is circular in its simplest form. It should be appreciated that features of these embodiments may be variously separated or combined within the invention. It is important to understand that these conditions are produced locally by the wave-form interacting with the rising seabed, and are not representative of conditions in the open sea. In this embodiment, the centre of buoyancy of the second blade is directly above the pivot axis, in order to maintain a neutral horizontal position, which minimises any drag impediment against horizontal water flow.
In a more preferred embodiment, the axis of the pivot means for the second blade is constructed so as to transmit any positive buoyancy of the second blade to the first blade, which then transmits the combined buoyancies through the pivot means of the first blade. In the embodiments of the invention shown in the accompanying drawings, the axis of the pivot means (9) for the second blade is positioned so as to pass through the structure of the first blade (4), and is constructed so as to transmit any positive buoyancy of the second blade (5) to the first blade (4), which then transmits the combined buoyancies through the pivot means (8) of the first blade.
A blade constructed to be positively buoyant tends to float. Dolor de espalda lado derecho . The to advantage of providing positive buoyancy only to the first blade is to ensure that the buoyant force is transmitted through the pivot means to the remaining structure above the water, without influencing the lateral positioning of the blade itself, which is only responsive to both the wave flow input and the spring means return force. Such a large range of end uses dictates that a large range of materials may be employed in the construction of the linear propulsion devices of the present invention. However, it is also recognized that the device of the present invention may be utilized for applications such as in wave-powered generators, pumps, and in other similar types of equipment. In a preferred embodiment of the invention, the second blade is provided with limiting means comprising spring means. In an alternative embodiment of the invention, the first blade is provided with limiting means by means of the buoyancy of the first blade.
The present inventor has previously conducted comprehensive analyses of water particle movement in complex wave environments, establishing that such movement was from all directions, in all planes, and should be described as both omnidirectional and chaotic. In all cases, wave motion is created when water is ‘pushed’ to form peaks in response to the motivating force. Such devices are designed to convert the energy contained in wave systems into useful thrust, to be used either in rotating shafts in order to pump water or generate electricity or in providing linear thrust to propel marine craft. A simple example of this circular radiating wave is represented by the waveform generated when a stone is thrown into a still pond. Preferably, each of the first blade and the second blade is provided with pivot means on an axis that is forward of the centre of lateral resistance of the blade.
The centre of buoyancy CoB is above and behind the pivot axis when in the neutral position shown in the lower diagram. For example, the innovative linear propulsion device of the present invention has particular application in providing a means of propulsion to marine craft. SUMMARY OF THE INVENTION In one aspect, the present invention provides a device for linear propulsion comprising a support structure for carrying a payload, and one or more wave propulsion modules, wherein the or each wave propulsion module comprises a first individually-pivoted substantially planar blade that is capable of producing a reactive force by self-attenuating in response to an incoming fluid flow in the horizontal plane, and a second individually-pivoted substantially planar blade that is capable of producing a reactive force by self-attenuating in response to an incoming fluid flow in the vertical plane.
Dolor Muscular Antebrazo
1, the device for linear propulsion (1) of the invention comprises a support structure (2) for carrying a payload (not shown), and one or more wave propulsion modules (3). Multiple wave propulsion modules are provided, each of which contributes to the dual tasks of providing buoyancy and propulsion to the payload.
Tipos De Dolor
The first blade that responds to lateral (horizontal) movement is pivoted in the vertical plane towards its forward edge, and moves laterally in response to water flows containing a lateral component. Infección de orina y dolor lumbar . Its path then becomes extremely complex as it transmits the energies contained by each separate wave motion simultaneously. As will become apparent to those skilled in the art, there will be many possible uses to for the present invention, facilitated by its function of converting chaotic energy inputs to usable thrust in a single direction. Thus, a wave environment on a small lake subject, for example, to an average 20 mph wind will exhibit much smaller waves (and therefore ‘cell’ size) than open sea with an average surface wind of, for example, 30-40 mph. In other words, the choice of material will most likely be made primarily to facilitate cost-effective production, as well as needing to fulfill the requirements for strength and durability in the working marine environment.
Dolores Musculares Generalizados
The contents of the aforementioned applications are hereby incorporated by reference. RELATED APPLICATIONS This application is a 35 U.S.C. This first blade is capable of producing a reactive force by self-attenuating in response to an incoming fluid flow in the horizontal plane (6). The second individually-pivoted substantially planar blade (5) is positioned in the horizontal direction when in use. It further seeks to provide an innovative solution to the design requirements for a wave-propelled sea-going apparatus that is can carry a payload, whereby the invention not only supplies the propulsive means to transport the payload, but also contributes a significant proportion of the buoyancy required to support the payload.
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The blade is provided with spring means to return it to a neutral position when vertical flow components cease. 3, the blade includes an area of positive buoyancy (12) and an area of neutral buoyancy (13). The centre of buoyancy (14) of the second blade is positioned directly vertically above the pivot means (9), such that the blade is in a stabilised neutral position. 1 and 2, each wave propulsion module comprises a first individually-pivoted substantially planar blade (4) and a second individually-pivoted substantially planar blade (5). The first individually-pivoted substantially planar blade (4) is positioned in the vertical direction when in use. According to one preferred embodiment of the invention, the first blade is provided with pivot means that is inclined forward at the top of the pivot, such that the orbit of rotation of the blade is on a forwardly-inclined plane, thereby allowing the centre of buoyancy to provide a return force when the blade is deflected by lateral flows.