4results about How to "Sufficient thrust" patented technology

This invention relates to a filtration mechanism and a swimming pool cleaning device, belonging to the technical field of swimming pool cleaning equipment. The filtration mechanism includes at least a first filter box, which includes at least a first inlet and a first outlet, with the first inlet and first outlet in fluid communication to form a first channel. At least a portion of the wall of the first filter box forms a first filtration structure, which forms the first outlet. The first filter box also includes a second inlet and a second outlet, with the second inlet and second outlet in fluid communication to form a second channel. The second channel is provided with a second opening and closing mechanism, which is movable between a first position and a second position. When the second opening and closing mechanism is in the first position, water can flow through the second channel; when the second opening and closing mechanism is in the second position, water flow is blocked from passing through the second channel, forming a water flow channel. Through the above-described design, this invention solves the defect of existing swimming pool cleaning devices where filter clogging easily leads to weakened back thrust.

This invention relates to the field of ship dynamic positioning technology, specifically disclosing a method and system for ship dynamic positioning control applicable to diesel engine-driven vessels. The method includes: S1: acquiring environmental data, calculating the total environmental load force, and determining the upper limit of the thruster and its corresponding upper limit of the diesel engine speed; S2: determining the lower limit of the theoretical diesel engine speed based on the upper limit of the diesel engine speed, and calculating the lower limit of the diesel engine speed and its corresponding lower limit of the thruster thrust based on the lowest stable diesel engine speed; S3: acquiring the initial thrust requirement of the thruster, determining the final thrust of the thruster based on the initial thrust requirement, the upper limit of the thruster thrust, and the lower limit of the thruster thrust, and driving the thruster through the diesel engine according to the final thrust of the thruster to achieve ship positioning control. This invention can fully utilize the high thrust advantage of diesel engines and avoid the shortcomings of slow speed adjustment, balancing thrust requirements and response speed without changing the hardware.

The application discloses a space station robot propulsion system based on an adjustable light circle nozzle, which comprises a centrifugal fan air suction pressurization system, an internal curved surface flow guide system and an outlet jet control system; wherein the centrifugal fan air suction pressurization system can complete air suction pressurization through a centrifugal fan and serve as a thrust source; the internal curved surface flow guide system comprises arc-shaped wall surfaces connected with an outer shell and installed on opposite sides of a shell body, can realize flow guide, and can store rudders and other equipment, so that the aerodynamic shape is prevented from being damaged and the space utilization is improved; and the outlet jet system is installed on two corners outside the arc-shaped wall surfaces and realizes precise thrust adjustment through an adjustable light circle nozzle. The application improves the design in view of the low propulsion efficiency and insufficient adjustment precision of the current space station robot, and the jet propulsion system based on the adjustable light circle nozzle can effectively meet the requirements of the space station robot in advancing, turning and attitude adjustment.

This application relates to a pile-slab composite revetment structure, belonging to the field of river revetment structures. The revetment structure includes a main revetment body for new energy construction projects; the main revetment body has an inclined buffer surface; a return pipe is installed on the inclined buffer surface; the bottom end of the return pipe is located at the water surface, and the top end is located at the beach; multiple downward-sloping barrier grooves are provided on the inclined buffer surface from top to bottom; the multiple barrier grooves are evenly distributed on both sides of the return pipe; multiple inlets communicating with the barrier grooves are opened on the side wall of the return pipe; a receiving unit and two sets of opening and closing units are slidably installed along the length of the return pipe; the two sets of opening and closing units are respectively used to open and close the multiple inlets on both sides of the return pipe; a limiting unit is provided at the bottom of the return pipe; the bottom wall of the receiving unit abuts against the top wall of the limiting unit; this application has the technical effect of regulating water flow and reducing soil erosion.