417results about How to "Increase power output" patented technology

A method for detecting ice on a wind turbine having a rotor and one or more rotor blades each having blade roots includes monitoring meteorological conditions relating to icing conditions and monitoring one or more physical characteristics of the wind turbine in operation that vary in accordance with at least one of the mass of the one or more rotor blades or a mass imbalance between the rotor blades. The method also includes using the one or more monitored physical characteristics to determine whether a blade mass anomaly exists, determining whether the monitored meteorological conditions are consistent with blade icing; and signaling an icing-related blade mass anomaly when a blade mass anomaly is determined to exist and the monitored meteorological conditions are determined to be consistent with icing.

This invention provides a portable combustion device that provides a cleaner combustion, reduces the kindling period, and provides a more efficient overall combustion through the use of a fan that directs a predetermined volume of airflow over the combustible fuel—typically wood or similar cellulose-based biological solids. The combustion device has a combustion chamber into which the fuel source is placed for combustion. Mounted to the side of the combustion chamber is a housing that encloses the TEG, which generates an electrical output based on a difference in temperature on opposing sides. Mounted onto the TEG housing and protruding into the combustion chamber through a small passageway is a heat-conducting probe and heat-conducting probe base unit. The opposing side of the TEG is also in contact with a heat sink to remove heat from the TEG device through interaction with ambient air that passes over the vanes from a port located along the side of the TEG housing. A motor and fan near the heat sink to draw air away the heat sink and aid in the cooling of the heat sink, and force air onto the combusting fuel through a plurality of peripheral ports that connect with an air space located between the inner and outer walls of the combustion chamber.

This invention provides a portable combustion device that provides a cleaner combustion, reduces the kindling period, and provides a more efficient overall combustion through the use of a fan that directs a predetermined volume of airflow over the combustible fuel—typically wood or similar cellulose-based biological solids. The combustion device has a combustion chamber with a fuel source. A housing encloses the TEG on the side of the device that generates an electrical output based on a temperature differential between opposing TEG sides. A heat-conducting probe is mounted to the TEG and protrudes into the combustion chamber. The opposing TEG side contacts a heat sink that interacts with ambient air. A fan draws heated air away the heat sink, and forces the air onto the combusting fuel through a plurality of peripheral ports that connect with an air space located between inner and outer walls of the combustion chamber.

The invention discloses application of manganese dioxide for preparing a cathode of a microorganism fuel battery. The method comprises the following steps: the manganese dioxide is taken as a catalyst, the mixture of the catalyst, a conductive carbon material and a caking agent is coated on a conductive substrate to prepare the cathode of the microorganism fuel battery and a membrane composite cathode applied to the microorganism fuel battery. Compared with a non-catalytic electrode, MnO2 is taken as a cathode catalyst for remarkably increasing the reducing speed, reducing the polarization of the cathode and improving the energy output of the microorganism fuel battery; compared with the prior Pt catalyst, MnO2 has low price and wide source, and the microorganism fuel battery assembled by the catalyst of the cathode can operate stably for a long time and has high power output. The manganese dioxide for preparing the microorganism fuel battery electrode provides solid foundation for the commercial application of the microorganism fuel battery.

This invention provides a portable combustion device that provides a cleaner combustion, provides a more efficient overall combustion through the use of a fan that directs a predetermined volume of airflow over the combustible fuel—typically wood or similar cellulose-based biological solids and provides a cooking surface that is a grill top. The combustion device has a combustion chamber into which the fuel source is placed for combustion. Mounted to the side of the combustion chamber is a housing that encloses the TEG, which generates an electrical output, based on a difference in temperature on opposing sides. Mounted onto the TEG housing and protruding into the combustion chamber through a small passageway is a heat-conducting probe and heat-conducting probe base unit.

A PEM fuel cell stack including one or more fuel cells (1) arranged on top of one another, each of which contains a membrane electrode assembly (2) between two electrically conductive bipolar plates (3,4), the surfaces of which are equipped with flow channels (10) open on one side for the supply of reactive gases, whereby the membrane electrode assemblies each comprise a polymer electrolyte membrane (5), both sides of which are in contact with a reaction layer (6,7), whereby the surface area of the reaction layers is smaller than that of the polymer electrolyte membrane and a compressible, coarse-pore gas distribution layer (8,9) made from carbon fiber fabric is inserted between each reaction layer and the adjacent bipolar plates congruent to the reaction lawyers along with seals (11,12) in the area outside the surface covered by the gas distribution layers, whereby the gas distribution layers in the no-load condition display a thickness D1 and the seals a thickness D2. The PEM fuel cell stack is featured by the gas distribution layers in the PEM fuel cell stack being compressed to 25 to 60% of the original thickness.

The invention relates to a logic control method for improving the starting performance of a vehicle, which comprises the following steps of: judging whether the vehicle is in a starting process at present or not by a starting-assisting function module according to a vehicle-speed signal, an engine rotating-speed signal, a speed-changer gear signal, an electronic accelerator-pedal opening signal and a braking signal; if so, calculating and outputting a starting-target idling-speed increment to an idle-speed control function module according to a current engine water-temperature signal, and controlling an engine by the idle-speed control function module to increase the starting-target idling-speed increment part to be used as a target idle speed in the starting process by the engine on the basis of an original target idle speed; and after the starting process of the vehicle is judged to be finished by the starting-assisting function module according to the vehicle-speed signal, the speed-changer gear signal, the electronic accelerator-pedal opening signal or the braking signal, quitting a starting-assisting function to enable the engine to be restored at the original target idle speed to normally operate. Through the control method, the engine can have a lower idling speed in an idle-speed state, and the vehicle has a higher idling speed in the starting process.

Renewable energy sources provide electricity without consuming fossil fuels and contributing to emissions that impact the global environment. Unlike wind and water methods solar photovoltaic generators provide this renewable energy without geographic or meteorological limitations. However, today electricity generation from solar using photovoltaics is more expensive than fossil fuel sources and is generally limited to deployments with large planar photovoltaic panels. According to embodiments of the invention concentrator based azimuth-altitude tracking solar power generators are provided offering reduced electricity generation costs, reduced installation costs, increased flexibility in deployment and locations of deployment, and initial system costs. The optical assembly comprises a concentrating lens and a reflector to couple the solar radiation to the photovoltaic cell. The concentrating lens is offset out of the plane parallel to the photovoltaic cell whilst the reflector and the reflector may be disposed angularly offset to an axis perpendicular to the photovoltaic cell.

The invention discloses a compact multi-mode valve driving system and belongs to the field of engine valve driving, stroke changing and auxiliary braking. The compact multi-mode valve driving system comprises a first cam shaft provided with a shaft sleeve, a second cam shaft provided with an exhaust braking cam, switching assemblies, a braking switch and the like. The shaft sleeve is provided with an intake four-stroke cam, an intake two-stroke cam, an exhaust four-stroke cam, an exhaust two-stroke cam and two switching grooves. The axial position of the shaft sleeve is controlled through the two switching assemblies, and two-stroke and four-stroke seamless switching is achieved; and the driving modes and the braking modes are switched through only one braking switch. By means of the compact multi-mode valve driving system, the four modes including the four-stroke driving mode, the two-stroke driving mode, the four-stroke braking mode and the two-stroke braking mode are flexibly switched, and high-power, low-oil-consumption, low-emission and efficient graded braking is achieved. The compact multi-mode valve driving system is simple and compact in structure, high in reliability, low in cost and high in response speed.

The invention relates to a wind energy collector based on a flexible polymer piezoelectric material. The wind energy collector comprises blades, a rotary shaft, flexible materials, a cylindrical shell, a rotary disc, piezoelectric films and a top cover, wherein the rotary shaft is fixed to the cylindrical shell through bearings and only has one degree of rotation freedom; one end of the rotary shaft is connected with the blades, and the other end of the rotary shaft is connected with the rotary disc; each flexible material and the corresponding piezoelectric film form a flexible piezoelectric polymer cantilever beam, and the multiple flexible piezoelectric polymer cantilever beams are evenly distributed on and fixed to the cylindrical shell; and the top cover is installed at the bottom of the cylindrical shell. The blades are driven to rotate by wind, the rotary shaft transfers the motion to the rotary disc, the rotary disc beats the flexible piezoelectric polymer cantilever beams periodically while rotating, and the piezoelectric films generate electric energy under vibration caused by beating and deformation recovery. The wind energy collector is simple in structure, high in energy collection efficiency, long in service life and suitable for a wide wind speed changing range, the requirements for a manufacturing process are low, and the wind energy collector can provide energy for micro-sensing network nodes.

The invention discloses a solar automatic tracking system comprising hardware which has a smart structural design with single-axle scaly solar panels (1) and a universal joint bearing seat (5), and the solar automatic tracking system is suitable for a shaft support with multiple pillars, is mounted in complex hilly lands, has down-moved gravity of the support and flexible turning and enables the system to adopt a single-axis tracking system to establish a solar power station in bumpy hilly lands, thereby ensuring that the solar panels always obtain solar radiation energy as much as possible in the hilly lands, enhancing the tracking efficiency, effectively improving the anti-wind capability of the hardware, reducing the material breakage brought by windage resistance and strengthening the security and the adaptability. With a unique shadow elusion system processing function, the system prevents the solar panels on a stand from generating energy degradation because of being sheltered from mutual shadows and enables the solar panels to obtain the greatest energy output, thereby not only improving the solar electrical energy generation efficiency greatly, but also enhancing the adaptability of the solar tracking system and saving the limited resources by saving occupied space about 50 percent compared with the prior solar tracking system.

In an electric power source control device of the present invention, a control circuit (24), to which detecting information from an input voltage detecting unit (51), an input electric current detecting unit (52) and a rectified electric current detecting unit (53) is input, is configured to output a driving instruction signal to turn on or off switching elements, so as to make a rectified electric current from a rectifying circuit (4) be in phase with an input voltage and of such a waveform that a sinusoidal electric current waveform is rectified; and a cutoff circuit (21) is configured to cut off the driving instruction signal input from the control circuit (24) to the rectifying circuit (4) when an absolute value of an input electric current detected by an electric current transformer (3) of the input electric current detecting unit (52) is over a predetermined abnormal input electric current threshold value.

A hydroelectric power system is provided. The hydroelectric power system includes a storage tank; a fluid; a penstock; an electric turbine generator, a transformer, an electric power grid system; a pump, and connecting conduit. A method of generating hydroelectric energy is also provided.

A method for increasing workable power output and run time duration of a battery backup system is disclosed. A plurality of battery groups is provided. A microprocessor electrically connects the power output of a first battery group and a second battery group to a UPS. The microprocessor monitors the output voltage of the first and second battery groups. When the monitored output voltage of the first and second battery group falls below a predetermined level, the microprocessor electrically disconnects from the UPS the first battery group and electrically connects to the UPS the power output of another of the plurality of battery groups. The first battery group is configured to be re-connectable to the UPS after a time period equal to or greater than necessary to permit the output voltage of the first battery group to recover to about its nominal voltage rating.

The invention relates to a hydrogen fuel internal-combustion engine and the hydrogen injection system and the combustion method thereof; part of the liquid hydrogen fuel is vaporized and injected into the engine inlet manifold by the gas channel hydrogen injector via the gas channel injector fuel supply system; the hydrogen injected into the engine inlet manifold is mixed with the air to enter the combustion chamber; part of the liquid hydrogen fuel is compressed to be injected into the combustion chamber by the high pressure hydrogen injector inside the cylinder. The combination of the two fuel supply modes improves the power performance of the engine, avoids the abnormal combustion situation and reduces the hydrogen intensity inside the gas inlet channel; thereby, the abnormal combustion such as the backfire is avoided.

The invention provides a temperature regulator of an internal combustion engine, which belongs to the engine parts technical field, and has the characteristics that the lateral wall of a cylindrical rotor is provided with a cooling water outlet, wherein the rotor is capable of being connected with the big and the small loop water-outlets of the valve when the rotor rotates; the top end of the rotor is connected fixedly with one end of the rotor shaft, and the other end of the rotor shaft rotates in collaboration with a stepper motor via a retarder; the valve of the temperature regulator is connected with the body of the internal combustion engine via the bottom of the pedestal linking with a flange. The invention solves the inertia problem of the thermostat on the conversion of the main and the secondary valves, achieves the goal that cooling water is capable of being converted between complete greater circulation and lesser circulation only when the working temperature of the engine reaches the optimal temperature, avoids the problem of boiling for the internal combustion engine when works under climatic conditions of high temperature, keeps the tightness of the thermostat, prevents the cooling water from leaking into the radiator when the cooling water performs complete greater circulation and lesser circulation, and precisely controls the flow of the cooling water flowing through the radiator.

One embodiment of the present invention includes an internal combustion engine with a turbocharger. The turbocharger includes a compressor with an outlet coupled to an intake of the engine and a turbine coupled to an exhaust manifold of the engine. A a turbocharger speed estimate is determined from engine speed and a ratio between inlet and boost pressure for the compressor. The turbocharger speed estimate is further adjusted as a function of compressor boost pressure variation with time.

An energy conversion device for generating electricity includes a heat exchanger adapted to receive heat from a heat source. A closed magnetohydrodynamic (MHD) circuit includes a section for extracting heat from a heat exchanger so as to raise the temperature of the flowable electrically conductive material within the MHD circuit. The heat exchanger includes a heat-conductive support adapted to be heated, and a heat-extracting section of the MHD circuit extracts heat from the support. The support may be a metal plate having a sinuous pipe arrangement in heat-conductive contact against each face, one of these pipe arrangements being part of a circuit for heating the plate and the other pipe arrangement being part of the MHD circuit. The heat source may be combustion of a fuel, solar, geothermal, chemical reaction, or waste heat in the form of a hot gas. The heat conductive support may be a metal tube heated, usually by a hot gas, in which case the heat-extracting section of the MHD circuit includes a helical pipe surrounding the tube. The heat-providing means may include a lens arrangement for concentrating solar radiation on one face of the heat exchanger plate.

A method is disclosed for controlling a hybrid electric vehicle powertrain having a multiple-ratio transmission. On a power-on transmission downshift, electric wheel torque is used to compensate for a slow response of an engine to a request for increased traction wheel torque.

The invention discloses a piezoelectric generator, which comprises two piezoelectric inverting element units, an elastic body and a plurality of fixing elements. The elastic body is contained between the piezoelectric inverting element units; the fixing elements can adjust the distance between the piezoelectric inverting element units; under the action of the elastic body, the piezoelectric inverting element units are led to deform due to the stress through adjusting the distance between the piezoelectric inverting element units; by utilizing the prestressing manner, the piezoelectric inverting element units generate the maximum electric energy output under the action of an uniform external force.