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157 results about "Gravitational energy" patented technology

Gravitational energy (GPE) is the potential energy of a physical object with mass has in relation to another massive object due to gravity. It is potential energy associated with the gravitational field. Gravitational energy is dependent on the masses of two bodies, their distance apart and the gravitational constant (G). In everyday cases (i.e. close to the Earth's surface), the gravitational field is considered to be constant.

Cell Aggregation and Encapsulation Device and Method

The invention is a cell aggregation device comprising a hydrogel substrate having at least one, preferably a plurality, of cell-repellant compartments recessed into the uppermost surface. Each compartment is composed of an upper cell suspension seeding chamber having an open uppermost portion and a bottom portion, and one, or more than one, lower cell aggregation recess connected to the bottom portion of the upper cell suspension seeding chamber by a port. The diameter of the port may be fully contiguous with the walls of the chambers and walls of the recesses, or the diameter of the port may be more narrow than the walls of the chamber but fully contiguous with the walls of the recesses or more narrow than both the walls of the chamber and the walls of the recesses. The upper cell suspension seeding chambers are formed and positioned to funnel the cells into the lower cell aggregation recesses through gravitational force. The aggregation recesses are formed and positioned to promote cellular aggregation by coalescing cells into a finite region of minimum gravitational energy, increasing intercellular contact and minimizing or preventing cell adherence to the substrate. A device for encapsulating aggregates of live cells is provided. The device comprises (i) a biocompatible, bio-sustainable substrate having a cell-encapsulating face composed of one or more biocompatible, bio-sustainable, spaced-apart, cell-encapsulating compartments extending therefrom and (ii) a coating layer composed of a biocompatible, bio-sustainable polymer that completely surrounds the substrate and the cell-encapsulating compartments. A method for making the device is also provided.
Owner:BROWN UNIVERSITY

Trolley driven by gravitational potential energy and capable of walking along S-shaped route

InactiveCN103638683AImprove stabilityPrecise control of driving directionRemote-control toysToy vehiclesDrive wheelDrive shaft
Provided is a trolley driven by gravitational potential energy and capable of walking along an S-shaped route. The trolley comprises a trolley body portion, a steering mechanism and a drive mechanism, wherein the trolley body portion is composed of a trolley bottom plate, a drive shaft support, a front fork installation frame, a weight support and a weight support installation frame. The drive mechanism is composed of a drive shaft, a locking threaded sleeve, a fixing shaft, a left drive wheel, a right drive wheel, a drive gear, a front wheel, a weight, a front trolley fork, a proportional fixed pulley and two ropes. The steering mechanism is composed of a driven gear, a connecting rod and a front trolley fork swing rod. The trolley has the following advantages that the gravity center of the whole trolley is descended to the lowest point, and stability of the trolley is facilitated; the rotation angle of the front wheel can be accurately changed by means of the method that the length of the connecting rod is adjusted, and accordingly the trolley can be conveniently debugged; by means of a conical winding groove in the drive shaft, requirements of the trolley in running for different torques can be changed, and the situation that the trolley speeds up in running is avoided; the trolley is simple in structure, convenient to operate, low in cost and capable of walking a long distance.
Owner:CIVIL AVIATION UNIV OF CHINA

Rotary drilling rig main winch system based on energy recovery of energy accumulator

The invention discloses a rotary drilling rig main winch system based on energy recovery of an energy accumulator. Under a down-pass working condition, a hydraulic pump outputs hydraulic energy to drive a main winch motor to rotate reversely so as to drive a drill stem of a drill rig to fall off, the main winch motor is driven to rotate by virtue of the falling inertia, the rotation speed of the main winch motor is quickened, the oil supply speed of the hydraulic pump can not keep pace with the rotation speed of the motor, the oil inlet of the motor is locally vacuum, the main winch motor is equivalent to the pump at the moment, and high-pressure oil is output so as to charge energy for the energy accumulator by virtue of an energy recovery valve, which is equivalent to the fact that two hydraulic pumps store energy into the energy accumulator at the moment, so that gravitational potential energy recovery is realized. The energy recovery route is as follows: the gravitational potential energy recovery of a drill stem of the drill jig is converted into hydraulic energy by virtue of the main winch motor, and the hydraulic energy is stored in the energy accumulator and used for a lifting working condition. According to the rotary drilling rig main winch system, the gravitational potential energy is recovered, heat losses are reduced, the heat load of the system is reduced, and the service life of a hydraulic component is prolonged.
Owner:CHANGAN UNIV

Three-force composite power device for moped

The invention relates to a three-force composite power device for a moped. The device comprises a solar battery component, a lithium battery, a traveling generator, a planar motor, an elastic force energy storage device, a speed change mechanism, a pedal, a driving chain wheel, a primary chain, a transition one-way chain wheel, a filtering chain wheel, a secondary chain, a driving one-way chain wheel, a one-way charger and a current controller, wherein the solar battery component is a continuous energy input source; the traveling generator is a charging source for recycling excess kinetic energy; the lithium battery is an electric energy storage device; the planar motor is main power for driving the moped to run; the elastic force energy storage device converts the gravitational potential energy of a human body who bumps up and down in the running process into elastic force for driving the moped to run; the pedal provides initial kinetic energy for the moped; therefore, human force, the elastic force and electromagnetic force are compounded, the excess kinetic energy and the gravitational potential energy of the moped in the running process are recycled, the moped is hardly charged by a mains supply in the using process, and the device is a compounded energy-saving power device.
Owner:江苏磁源动力科技有限公司

Cell aggregation and encapsulation device and method

The invention is a cell aggregation device comprising a hydrogel substrate having at least one, preferably a plurality, of cell-repellant compartments recessed into the uppermost surface. Each compartment is composed of an upper cell suspension seeding chamber having an open uppermost portion and a bottom portion, and one, or more than one, lower cell aggregation recess connected to the bottom portion of the upper cell suspension seeding chamber by a port. The diameter of the port may be fully contiguous with the walls of the chambers and walls of the recesses, or the diameter of the port may be more narrow than the walls of the chamber but fully contiguous with the walls of the recesses or more narrow than both the walls of the chamber and the walls of the recesses. The upper cell suspension seeding chambers are formed and positioned to funnel the cells into the lower cell aggregation recesses through gravitational force. The aggregation recesses are formed and positioned to promote cellular aggregation by coalescing cells into a finite region of minimum gravitational energy, increasing intercellular contact and minimizing or preventing cell adherence to the substrate. A device for encapsulating aggregates of live cells is provided. The device comprises (i) a biocompatible, bio-sustainable substrate having a cell-encapsulating face composed of one or more biocompatible, bio-sustainable, spaced-apart, cell-encapsulating compartments extending therefrom and (ii) a coating layer composed of a biocompatible, bio-sustainable polymer that completely surrounds the substrate and the cell-encapsulating compartments. A method for making the device is also provided.
Owner:BROWN UNIVERSITY

Desilting operation ship

The invention discloses a desilting operation ship. A ship body is provided with a high-pressure air generator for sucking silt through jet, and is also provided with a gravitational energy mud-waterseparation device, a mud sucking pipe lifting device and a high-pressure air pipe extension device; an intake pipe of a high-pressure air pipe communicates with the high-pressure air generator, and aspraying end is upwards inclined underwater by the high-pressure air pipe extension device to extend into a pipe at the lower end of the mud sucking pipe for fixation; the mud sucking pipe is vertically mounted at the tail part of the ship body; an outlet end of the mud sucking pipe communicates with an inlet of the gravitational energy mud-water separation device; and the gravitational energy mud-water separation device feeds leached silt to a silt bin. The water ratio in a mud-water mixture sucked by the desilting operation ship is prominently reduced, so that the bearing efficiency of the silt bin is improved, and the construction efficiency is improved; the mud-water separation device is operated by using dead weight of the sucked silt without additionally arranging a power device; andin particular, the desilting operation ship is suitable for the water quality purifying engineering of such natural water as vast river channels, lakes and reservoirs.
Owner:陈欢

Fan power generation system with function of storing gravitational potential energy and control method thereof

PendingCN108825436AConstant kinetic energyCapable of grid-connected power generationWind energy with garvitational potential energyEnergy storageElectric power systemEngineering
The invention discloses a fan power generation system with the function of storing gravitational potential energy. A wind energy tower is installed on the ground, a fan cabin is installed at the top of the wind energy tower, a wind energy shaft is fixed in the fan cabin, the wind energy shaft is connected with fan blades outside the fan cabin, the wind energy shaft is connected with the input endof a wind power conversion clutch machine, and the two output ends of the wind power conversion clutch machine are connected with a one-way transmission shaft F and a one-way transmission shaft C respectively. The fan power generation system has the advantages that the kinetic energy of wind can be collected by using the wind blades, meanwhile, the residual electric energy obtained at the load peak of an electric power system or the electric energy obtained through other modes are converted into mechanical kinetic energy, wherein a gravity body is lifted to the upper end of the wind energy tower or the relatively high position of other structural bodies, so that the wind energy or electric energy which cannot be stored is converted into the gravitational potential energy which can be stored of the gravity body, and the fan power generation system is provided with a wind power storage gravitational potential energy power generation system which can realize synchronous operation of energy storage and power generation.
Owner:秦明
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