摘要:
A hull mounted, steerable marine drive system having trim actuation is both steerable through 360 degrees and is trimmable in a range of from approximately +3 degrees to approximately −15 degrees. The marine drive system includes a watertight enclosure assembly for sealing the hull, which is adapted for keeping much of the marine drive system from being exposed to water. The enclosure includes a gasket flange plate, a retention plate and a folded gasket. The gasket flange plate closely follows the contour of the hull and enhances the hydrodynamic and wake performance of the present marine drive system. Further, marine drive system includes a forward-neutral-reverse (FNR) transmission assembly, a drive unit assembly having a trimmable upper unit and a steerable lower unit, a steering actuator assembly, a trim actuator assembly, and, preferably, trim foils for enhancing lift to assist in getting the boat up on plane.
摘要:
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.
摘要:
A boat stabilizer that is attachable to the anti-cavitation plate or other structure of the lower drive unit of a boat motor without permanently modifying the structure of the anti-cavitation plate or other structure is provided. The shape and size of the boat stabilizer causes the stabilizer to effectively harness and control the thrust energy generated by the propeller resulting in improved thrust and fuel efficiency. Due to various features, the drag associated with the boat stabilizer is kept to a minimum. Finally, decals and other decorative elements are integrally embedded into the top surface of the inventive boat stabilizer using in-mold decoration (“IMD”) technology which makes the elements resistant to ultra-violet light, virtually indestructible and highly appealing. A boat motor, a method of attaching a boat stabilizer to a boat motor and a method of molding a boat stabilizer having at least one decorative element integrally embedded in the top surface thereof are also provided.
摘要:
The present invention relates to SMAs (self-moving apparatuses) which use any type of propulsion means, including, without limitation, an FPGB (propeller-gear block) comprising an FP (propeller) and a drive for supplying power thereto. More particularly, the present invention describes: novel forms of energy-efficient (economical) FPGBs; and novel conceptual designs for SMAs, which make it possible to create economical SMAs with high specific power. The invention can be used for creating novel energy-efficient types of SMAs, and for the widespread (mass) use of compact and environmentally-friendly electric engines instead of environmentally detrimental and bulky internal combustion engines.
摘要:
A boat stabilizer that is attachable to the anti-cavitation plate or other structure of the lower drive unit of a boat motor without permanently modifying the structure of the anti-cavitation plate or other structure is provided. The shape and size of the boat stabilizer causes the stabilizer to effectively harness and control the thrust energy generated by the propeller resulting in improved thrust and fuel efficiency. Due to various features, the drag associated with the boat stabilizer is kept to a minimum. Finally, decals and other decorative elements are integrally embedded into the top surface of the inventive boat stabilizer using in-mold decoration (“IMD”) technology which makes the elements resistant to ultra-violet light, virtually indestructible and highly appealing. A boat motor, a method of attaching a boat stabilizer to a boat motor and a method of molding a boat stabilizer having at least one decorative element integrally embedded in the top surface thereof are also provided.
摘要:
A screw shaft turbine compressor comprising (i) a compressor section, (ii) a turbine section, (iii) a combustion section coupling to the compressor section and the turbine section, and (iv) a grooved shaft. The grooved shaft in one embodiment extends from a portion of the compressor section, through the combustion section, and to a portion of the turbine section.
摘要:
A contra-rotating propeller system is installed between a rudder horn of a ship and shaft support at an engine-output side. The system includes a propeller shaft rotatably supported by the rudder horn and the shaft support, respectively, a front propeller fixed to the propeller shaft, a counter rotating gear set installed on the rudder horn and connected with the propeller shaft, and a rear propeller connected to the counter rotating gear set and disposed between the rudder horn and the front propeller.
摘要:
A propeller used in aircraft/sea vessels, pumping systems, wind and hydraulic turbines is provided. Propeller blades are distributed around the propeller hub and positioned so as to set an angle with the axis (x) of the propeller hub, to a concave curvilinear contact surface formed on the suction side of said blades that push water and to a convex outlet surface which follows this concave surface and is shorter than said concave surface.
摘要:
A propeller used in aircraft/sea vessels, pumping systems, wind and hydraulic turbines is provided. Propeller blades are distributed around the propeller hub and positioned so as to set an angle with the axis (x) of the propeller hub, to a concave curvilinear contact surface formed on the suction side of said blades that push water and to a convex outlet surface which follows this concave surface and is shorter than said concave surface.
摘要:
In a propeller system a process of dynamic energy-saving superconductive propeller interaction with a fluid medium comprises providing a perforation on the working blade surfaces having the different pressures, with an element possibility of the dynamic fluid medium flow connection between said blade perforations; and modulating a value of said connection of the blade so-called “breathing surfaces” in dependence on a change of a value of at least one controlled characteristic influencing a dynamic energy efficiency of a propeller process such that a dynamic structure-energetically optimization of said modulated surface-energy interaction is provided.