435 results about "Buoyant force" patented technology

A flotation assembly made up of a load bearing structure which can be an off-shore platform, and also a flotation section comprising a plurality of flotation tubes. Each of the flotation tubes comprises a surrounding side wall defining a vertically aligned elongate pressure chamber and having an upper end closure portion that has a downwardly facing surface exposed to pressure in the chamber. The tubes are positioned at laterally spaced locations and arranged relative to the load bearing structure so as to create upwardly directed flotation forces that bear against the load bearing structure. A source of pressurized gas is transmitted to the flotation tubes to a level where the gas pressure within each tube creates a force against the side walls to alleviate compressive force of the surrounding water pressing inwardly against the side walls of the flotation tubes. There are various arrangements of the flotation tubes, and these are provided in various forms, either with closed lower ends, open lower ends exposed to ambient pressure, etc.

A system for enhancing the separation of particles or fluids from water is disclosed. A settling tank or skim tank is provided with an open submersible acoustophoretic separator. In a skim tank, the separator captures and holds oil droplets or particles, permitting them to coalesce until they are large enough and have sufficient buoyant force to float to the top of the tank. In a settling or sediment tank, separator captures and holds particles until they are large enough that the force of gravity causes them to settle out of the water. The acoustophoretic device thus speeds up separation of the particles or droplets from the water.

A sealed-shaft gravity-buoyancy energy system and method of use thereof, wherein a wheel is powered by ball masses which fall under gravitational force, thereby causing the wheel to rotate. The ball masses are collected and inserted into a fluid shaft, wherein the fluid shaft comprises at least two separate columns having valves at the ends thereof to provide a sealing function, thereby preventing fluid loss. Buoyant force raises the ball masses to the top of the device, wherein the ball masses are deposited once again onto the wheel. A generator or other device utilizes the rotational force of the wheel to create energy.

The fuel cut off valve comprises a casing, a float that rises and falls with increases and decreases in the buoyant force depending on the fuel liquid level within a valve chamber, and a valve mechanism that opens and closes a connecting passage through the rising or falling of the float, equipped on the upper part of the float. The valve mechanism comprises a supported part, and when the supported part is supported by a support part of the float, the center of gravity is provided below the support portion, so that the supported part is balanced on a single support portion. The fuel cut off valve can provide excellent seal performance when a vehicle is at an angle, and that can be miniaturized.

The invention discloses a drainage device of a washing machine and the washing machine. The washing machine comprises an outer barrel, an inner barrel and an impeller, wherein cleaning particles for cleaning the walls of the barrels are arranged between the inner barrel and the outer barrel; an outfall is arranged at the bottom part of the outer barrel; the drainage device comprises a particle collecting and discharging chamber for containing the cleaning particles when dewatering and enabling the cleaning particles to float into the outer barrel to clean the wall of the barrel by buoyancy force when feeding water, and a drainage chamber; the particle collecting and discharging chamber is communicated with the outfall through an interconnection pipe; the particle collecting and discharging chamber has an inclined inner wall structure capable of enabling the cleaning particles to float along with raised water level so as to enter into the interconnection pipe along the inner wall and enter into the outer barrel via the outfall; an opening communicated with the outside is arranged at one side of the particle collecting and discharging chamber opposite to the drainage chamber; the opening is provided with a closable sealing cover; and the sealing cover is on the inner wall of the particle collecting and discharging chamber and is in an inclined structure of which the caliber gradually increases towards the internal direction of the particle collecting and discharging chamber. According to the invention, blocking caused by unfavorable flotation of the cleaning particles is avoided and the structure is simple.

The invention relates to the underwater robot, comprising a tapering body, parallel middle body, electric control body, horizontal sliding fin, vertical stable fin, and all kinds of drive devices, with the vertical stable fin fixed to the tapering body, floating device fixed to the tapering and parallel middle body, radio digital transmission station installed on the fixed bracket of the floating adjusting device, horizontal sliding fin fixed to the outside and parallel middle part, pitch angle adjustment device fixed to the front and middle part, electric control part connected wit the horizontal rolling angle adjustment device and elevation angle adjusting device, motor driver installed on the fixed rack, connected with the synchronic motor, front sensor installed inside it, and the emergency treatment device fixed on the bracket with the floating adjustment device. It can effectively improve the space, time density of the ocean, with low cost, and wide application.

The speaker device includes the magnetic circuit system having an annular plate and magnetic fluid, and a vibration system having a voice coil bobbin and a voice coil. When the speaker device is not driven, the voice coil is located at a predetermined stationary position within the magnetic gap filled with the magnetic fluid. Within the magnetic gap, a recess portion into which the greater part of the magnetic fluid flows is formed in the voice coil or voice coil bobbin. When the speaker device is not driven, the greater part of the magnetic fluid enters the recess portion and forms a stable condition. Thereby, in the case where the edge is formed by soft material, the voice coil is never affected by the buoyant force of the magnetic fluid and reliably held at the predetermined stationary position within the magnetic gap.

A waste lead-acid storage battery crushing-and-separation one-step energy-saving recycling process. According to work principle of a system in the process, an impact hammer crusher crushes a waste storage battery, and the crushed material is cleaned and separated through a vibration sieve to obtain lead plaster, and according to the physical characters of the crushed materials of the storage battery, wherein the specific gravities of the materials are different, the materials are separated through water buoyant force and compressed air, and finally, the materials are separately conveyed into different stores for storage through a spiral conveyor.

The invention relates to a wave electric power system, which comprises a floating element, a rope unit, a kinetic energy unit, and a power generation unit. The floating element has gravitational force lower than the buoyant force of seawater and can float up and down with wave. The rope unit has a rope connecting the floating element, and the rope crosses over seacoast with height of drop and in penetrated into inland far away form sea surface. The kinetic energy unit allows the rope to be coiled, and has a traction force not larger than the gravitational force of the floating element, so that the rope can carry out reciprocating movement under the action of gravitational force and traction force to generate kinetic energy. The power generation unit receives the kinetic energy from the kinetic energy unit, converts the kinetic energy to electric energy and then output. Thereby, the kinetic energy and power generation unit are far away seacoast, so as to prolong the service life thereof.

the present invention provides an agitation device, comprising a motor for supplying rotational power, an outer shaft operatively connected to the motor, an extendible inner shaft positioned within the outer shaft and operatively connected thereto, an agitator positioned on the extendible inner shaft, and a floatation device positioned on the extendible inner shaft distal to the agitator from the motor for providing a buoyant force to the extendible inner shaft and the agitator for immersing the agitator at a predetermined level in a liquid. The present invention also provides a device for agitating and heating a liquid.

The invention discloses a belt type rescue device which comprises a buckle head and an elastic belt. The belt type rescue device is simple in structure and convenient to carry, can be tied on the waist by being arranged in a belt form, and does not affect using of hands after being started. The belt is internally provided with a plurality of airbags, the buoyancy is sufficient, hands can conveniently grab objects for lifesaving, and a user cannot feel tired after using the device for a long time. A detection sensor is arranged and can automatically monitor the heart rate when a swimmer has a sudden heart attack, or faints by collision or has other diseases and situations, especially when a person (child) is liable to be panic in drowning, then a controller is used for automatically opening the airbags, the survival rate is increased, and the using range is expanded.

The vertical gravity/buoyancy power generator relates to the generation of power by harnessing the gravitational and buoyant forces which act on an apparatus in a natural or man-made liquid medium and convert such forces into mechanical energy. More specifically, the vertical gravity/buoyancy power generator improves on operably different, fluid medium power generators by efficiently utilizing the gravitational force as efficiently as the buoyant force is harnessed. The vertical gravity/buoyancy power generator includes methods, systems and devices for a plurality of weighted containers which ascend and descend in a primarily vertical plane and which drive one or more chains, belts or conveyances with rotating sprockets or pulleys on horizontally aligned shafts in primarily a vertical arrangement upon such apparatus. In the descent phase the containers are open on both ends (FIG. 1) and have greater density than the volume of liquid they displace causing them to rapidly descend through the liquid medium due to the gravitational force. In the ascent phase the containers are filled by bladders (FIG. 5), have both ends closed, or are closed on their upper end when, in any embodiment, a volume of gas is introduced such that the overall volume of the containers have a lesser density than the liquid displaced causing the containers to rise through the liquid medium due to the buoyant force. The chains, belts or conveyances driven by the containers rotate the sprockets or pulleys (FIG. 1) and their associated shafts creating mechanical power. Such power can be used to turn electrical generators or other mechanical machines which necessitate such power input.

A self-contained orbiting power plant receives and directs solar radiation as an energy source to heat the working fluid of a Rankine-type engine used to power an electrical energy generator and create a pseudo-gravity environment in which the buoyant force exists. Through the use of reflectors and alignment of the power plant with the solar radiation source, the low temperature of outer space is used as a heat sink to condense steam back into the liquid phase. The working fluid (e.g. water) is pressurized and heated to the elevated vaporization point and the expansion of the superheated steam is captured through rotation of the power plant in the microgravity environment. The steam is used to rotate an electrical generator turbine and a counter-rotation hull turbine. The steam is cooled by conductive heat transfer to a cooling fluid (e.g. liquid ammonia) which radiates excess heat to outer space, and to return the working fluid to the liquid phase for recirculation. The produced electrical current is transformed and transmitted as microwave energy. The power generated may be transformed to specific transmittable wavelengths to decompose greenhouse gases in the atmosphere during transmission.

The invention discloses a tilting pendulum type float ball liquid level meter which comprises a mounting and connecting part, a computing-controlling-displaying-communication-signal outputting part, a tilting angle measuring element, a float ball and a pendulum rod. The mounting and connecting part is used for mounting and connecting a pendulum part to a measuring position. The computing-controlling-displaying-communication-signal outputting part is mainly used for completing signal collecting, data computing, signal displaying, wireless and wired communication work of a communication device and other equipment terminals, and signal outputting work. The tilting angle measuring element is mainly used for measuring the tilting angle of the pendulum part and the horizontal or vertical direction. The float ball floats on a liquid surface, provides buoyant force and transmits liquid surface change information. The pendulum rod is fixedly connected with the float ball, provides a fixed length, and provides a determined computing parameter.

The present invention provides a method for installation of an offshore wind turbine, comprising a step for prefabrication of a foundation, a step for installation on the dock, a step for transportation and a step for offshore installation. The foundation provides buoyant force and uprighting force to the entire structure so as to keep it upright without external forces; the step for installation on the dock comprises assembling into the complete set, and finishing the test in a state of complete set; in the step for transportation, the complete set is transported to the offshore site in a way of floating on the water; the step for offshore installation comprises sinking the complete set onto the sea bed by gravity on the offshore site, and fixing the foundation to finish the installation. The present invention also provides a method for recovery of an offshore wind turbine, which is performed generally in steps reversed to the method for installation. The one-step installation and disassembly for the complete set can be realized according to the method of the present invention, which has low risk for damaging the wind turbine complete set, with convenience and high efficiency, and greatly reduces the cost, and moreover, is environment-friendly.

A push-paddle has a buoyant wedge-shaped push-block attached to the bottom end of a pole. When pressed into the water wedge-end first, the push-block provides high drag and buoyant force for the user to push against and propel a watercraft using a punting-like motion. At the end of the power stroke, the wedge slips easily and quickly up out of the water allowing the user to recoil the push-paddle through the air.

The invention discloses a rainwater dirt filtering tank with a self-cleaning mechanism. The rainwater dirt filtering tank comprises a main tank and is characterized in that the bottom plate of the main tank is provided with filtering holes, the self-cleaning mechanism is arranged in the main tank and comprises a dirt recycling tank, a dirt pushing part, a dirt pushing drive mechanism and a power mechanism, and the dirt pushing drive mechanism drives the dirt pushing part to flatly push dirt on the bottom plate into the dirt recycling tank. Rainwater with the dirt flows into the main tank from a road surface, and the dirt is left on the bottom plate while the rainwater flows down through the filtering holes; when the a large amount of dirt accumulates on the bottom plate, the filtering holes are blocked, the water level in the main tank rises, the power mechanism utilizes the buoyant force of a floating ball to provide powder for the dirt pushing drive mechanism, the dirt pushing drive mechanism drives the dirt pushing part, and the dirt pushing part flatly pushes the dirt on the bottom plate into the dirt recycling tank.

The invention belongs to the technical field of additive manufacturing, and relates to a method for reducing the pore defect of laser-cladding formed parts. A laser device is used for providing an energy source in the laser cladding process and is further equipped with an industrial robot used for assisting free-moving of a laser beam. A coaxial powder feeder is used for providing stable material input in the laser cladding process and carried on the laser device. A steady-state magnetic field generator is used for outputting an intensity-adjustable directional uniform magnetic field, and in the carrying process, a clad matrix is placed in the center of the steady-state magnetic field generator. A direct-current power supply is used for outputting current-value-adjustable direct-current power for the matrix material, and the positive and negative electrodes of the direct-current power supply communicate with the clad matrix. According to the method, uniform acting force can be exerted in a molten bath, gas buoyant force is increased, and porosity defects such as pores are reduced. The feeding speed in the molten bath solidification process is increased, and the density of the laser-cladding formed parts is improved. The experiment scheme is simple and efficient.