36results about How to "Improve heat engine efficiency" patented technology

The invention discloses a methanol diesel oil additive and simultaneously discloses methanol diesel oil with the methanol diesel oil additive. The methanol diesel oil prepared by the invention is prepared by mixing 0.04-0.07 part of ferrocene, 2-5 parts of acetone, 4 parts of diemethyl carbonate, 2-3 parts of isobutanol, 2-3 parts of toluene, 70 parts of diesel oil and 20-25 parts of methanol. The methanol diesel oil has the advantages of low corrosion, good intersolubility and swelling property, uniform texture, high flash point, low condensation point and high cetane number, is safe to use and meets all indexes of automobile diesel oil GB19147-2009. The methanol diesel oil can be applied to internal-combustion engines, general engines, power plant fuels, burner substances and the like, thus the applicable range of the methanol diesel oil is wide.

The invention discloses a composite prestressing force ceramic lining cylinder sleeve and a manufacturing method thereof; the cylinder sleeve comprises a metal outer sleeve and a ceramic lining, wherein the ceramic lining is sheathed in the metal outer sleeve by a heating assembly method, after cooling, the metal outer sleeve applies pressure stress to the ceramic lining and increases the mechanical strength of the ceramic so that the ceramic can be used for manufacturing the cylinder sleeve; wherein the inner diameter of the metal outer sleeve is identical to the outer diameter of the ceramic lining; the mismatching tolerance of the inner diameter of the metal sleeve is negative error, and the matching tolerance of the outer diameter of the ceramic lining is positive error. When the composite prestressing force ceramic lining cylinder sleeve provided by the invention is used, the exterior of the cylinder sleeve has no need to be cooled by a cooling water system, therefore, the radiation loss of the cylinder sleeve is reduced, the temperature of an air cylinder combustor is increased so that fuels are more rapidly and completely burned, and the heat engine efficiency of an internal combustion engine is improved; the manufacturing method of the composite prestressing force ceramic lining cylinder sleeve is simple, has higher requirements on the machining precision and can be realized by a modern numerical control machining technology.

A regenerator, for use in a heat engine, configured to receive and store heat from a high-temperature gas flowing from a high-temperature space into the regenerator, and to provide the heat to a low-temperature fluid flowing from a low-temperature space into the regenerator. The regenerator includes a large number of layered metal meshes. Each metal mesh includes a large number of mutually parallel longitudinal strands and a large number of mutually parallel lateral strands perpendicular to the longitudinal strands. The metal meshes are layered such that each metal mesh is sequentially rotated in a same direction by a fixed angle with respect to an immediately previously layered metal mesh.

The invention discloses a four-stroke four-cylinder opposed one-way rotary engine and a control method thereof. The engine consists of an output shaft, two one-way wheels, four oil cylinders, two connecting rods and four push-pull rods. The control method for the engine comprises the following steps of: enabling the four oil cylinders to ignite in turns; enabling the two one-way wheels to performcirculating motion between positive rotation and negative rotation by utilizing the push-pull rods connected between the oil cylinders and the one-way wheels, enabling other three oil cylinders to separately complete action of gas exhaust, gas inlet and compression while the output shaft is driven to perform power output. The four-stroke four-cylinder opposed one-way rotary engine adopts the connecting rods and the push-pull rods as transmission mechanisms, the four oil cylinders are oppositely arranged in pairs, and twisting force output of the output shaft and return for the push-pull rods are simultaneously realized by utilizing in-turn ignition power of the four oil cylinders and one-way locking property of the two one-way wheels. The four-stroke four-cylinder opposed one-way rotary engine has the advantages of being simple in structure, small in size, low in cost, reliable in work, high in efficiency of the heat engine, flexible in application, strong in universality and the like.

The invention relates to a vortex gas steam turbine belonging to the field of heat engines. The vortex gas steam turbine aims to solve the problems that the reduction of effective enthalpy of a constant-pressure combustion and head absorption gas turbine engine limits the increase of the efficiency of the gas turbine, and the boiler of the steam turbine has low heat transfer efficiency and speed. In the vortex gas steam turbine, multistage vortex superchargers are respectively in series connection between an air compressor and a combustion chamber, between the combustion chamber and a high pressure turbine, and among the high pressure turbine, an intermediate pressure turbine and a low pressure turbine; wedge body regulation devices are respectively in series connection with the vortex superchargers, and the air inlet passage and the air outlet passage of the combustion chamber; the shaft of the high pressure turbine is in transmission connection with that of the air compressor through an overrunning clutch;and the shaft of the intermediate pressure turbine and the shaft of the low pressure turbine are in differential connection with a shaft output power through a differential coupler. The vortex gas steam turbine realizes combustion heat absorption and mixed flashing heat exchange under variable conditions. The internal energy-kinetic energy-potential energy shift of a medium makes the pressure of the medium higher than the corresponding pressure ratio of the average heat absorption temperature, thereby achieving deep enthalpy drop. The vortex gas steam turbine can be applied to such occasions as aviation, vehicles and vessels, oil and gas pipeline supercharging, power supply and mobile power stations.

The invention relates to a cyclic regeneration environmentally-friendly energy system optimization set. A hydraulic power and temperature difference generating system is used for converting energy, optimizing the system and automatically controlling an output and input energy feedback distribution ring and a bus and has sharply increased power density, output power and efficiency and stability. The power of a power station is 450 to 750 percent of that of the original power station and can reach 1389 percent of that of the original power station to the maximum extent, so that the capacity of human energy and electric power can be expanded by 90 to 300 percent. The invention also relates to a thermal energy high-grade recycling device and a thermal energy high-grade recycling method. Various kinds of known energy can be input and output; and proper energy such as heat energy, temperature difference energy, hydraulic energy, air energy, solar energy, wind energy, terrestrial heat, waste heat and the like which is input and output or arranged and combined is automatically controlled. Valuable energy cannot be consumed; the optimization set is widely used for low-cost energy, electric power, heat, refrigeration, motive power, transportation tools, equipment and the like; and the problems of energy and environmental friendliness are radically solved.

The invention provides a solar seawater desalting plant which consists of a disc type Stirling solar power system, a Stirling heat pump seawater desalination system, a seawater supply system, a fresh water transportation system, a sea salt storage and transportation system, a power transmission and distribution system and an automatic control system. Solar energy is firstly transformed into electric energy by a heat accumulation type Stirling solar generator, and then the electric energy is used for driving a Stirling heat pump to simultaneously heat and evaporate seawater and condense water vapor so as to separate the seawater into fresh water and sea salt. Since a heat engine of the disc type Stirling solar power system is high in efficiency and the Stirling heat pump is large in heating coefficient, due to the advantage superposition of the disc type Stirling solar power system and the Stirling heat pump which are combined, the utilization rate of seawater resources is high, the yield of the fresh water is high, the water quality is good, no emission is caused and the production cost is low. Being connected with an external power grid, the power transmission and distribution system can be replenished with power from the external power grid when the sunshine is not enough so as to guarantee normal proceeding of seawater desalination.

The invention relates to a multi-ring connected Stirling reversible heat engine. Cylinders at the heat inflow end of the engine are communicated with cylinders at the heat outflow end of the engine, which correspond to piston groups arranged at intervals through heaters, heat exchange regenerators and radiators to form working cavities; the working cavities and the piston groups are connected alternately to form a plurality of closed connecting rings; the connecting directions of all the closed connecting rings are consistent; two working cavities with the phase difference pi are respectively communicated with two heat exchange channels of the same heat exchange regenerator; the whole engine is provided with at least two closed connecting rings; and each closed connecting ring is formed by connecting at least three piston groups and at least three working cavities alternately. By combining the heat exchange regenerators with the high-efficiency radiators, the output power of a single working cavity is increased; the inherent advantages of simple structure, high efficiency, low noise and the like of the Stirling heat engine are fully exerted; and manufacturing cost and using cost are lower than those of an internal combustion engine, a steam turbine and a gas turbine.

The invention discloses a composite prestress enhanced ceramic cylinder sleeve and manufacturing method thereof. The composite prestress enhanced ceramic cylinder sleeve comprises a metal outer sleeve and a ceramic lining, wherein the manufactured ceramic lining is put into a metal casting die and is heated to a certain temperature, molten metal is poured in the casting die, and after the molten metal is cooled naturally, the metal outer sleeve has pressure stress on the ceramic lining to improve the mechanical strength of ceramics, so that the ceramics can meet the requirement of the using strength of the cylinder sleeve. The method for manufacturing the composite prestress enhanced ceramic cylinder sleeve is simple, and the good matching of the ceramics and metal can be realized and prestress can be controlled by regulating coefficients of thermal expansion of the ceramics and the metal. When the lining cylinder sleeve manufactured by the method is used, the outside of the cylinder sleeve is not required to be cooled by using a cooling liquid system, the radiation loss of the cylinder sleeve can be reduced, and the temperature of a combustion chamber of an internal-combustion engine can be improved, so that fuel can be combusted quickly and fully, and the efficiency of a heat engine of the internal-combustion engine is improved.

The invention provides a solar seawater desalting plant which consists of a disc type Stirling solar power system, a Stirling heat pump seawater desalination system, a seawater supply system, a fresh water transportation system, a sea salt storage and transportation system, a power transmission and distribution system and an automatic control system. Solar energy is firstly transformed into electric energy by a heat accumulation type Stirling solar generator, and then the electric energy is used for driving a Stirling heat pump to simultaneously heat and evaporate seawater and condense water vapor so as to separate the seawater into fresh water and sea salt. Since a heat engine of the disc type Stirling solar power system is high in efficiency and the Stirling heat pump is large in heating coefficient, due to the advantage superposition of the disc type Stirling solar power system and the Stirling heat pump which are combined, the utilization rate of seawater resources is high, the yield of the fresh water is high, the water quality is good, no emission is caused and the production cost is low. Being connected with an external power grid, the power transmission and distribution system can be replenished with power from the external power grid when the sunshine is not enough so as to guarantee normal proceeding of seawater desalination.

There is provided a method for producing a Ni-based heat-resistant superalloy a primary γ′ phase with an average particle size of at least 500 nm comprising the steps of: providing a material to be hot-worked having a composition consisting of, by mass, 0.001 to 0.05% C, 1.0 to 4.0% Al, 4.5 to 7.0% Ti, 12 to 18% Cr, 14 to 27% Co, 1.5 to 4.5% Mo, 0.5 to 2.5% W, 0.001 to 0.05% B, 0.001 to 0.1% Zr, and the balance of Ni with inevitable impurities; heating the material to be hot-worked in a temperature having a range of 1,130 to 1,200° C. for at least 2 hours; cooling the material to be hot-worked heated by the heating step to a hot working temperature or less at a cooling rate of at most 0.03° C. / second; and subjecting the material to be hot-worked to hot working after the cooling step.

The invention discloses composite diesel oil for an automobile. The composite diesel oil is characterized by comprising the following components in parts by weight: 0.03-1.09 parts of ferrocene, 20-30 parts of diesel oil, 2-5 parts of dimethyl carbonate, 1 part of tertiary butanol, 1-3 parts of isobutanol, 15-20 parts of kerosene, 20-35 parts of coal tar and 40-50 parts of heavy aromatic hydrocarbon. In the composite diesel oil for the automobile, ferrocene can improve the dynamic property of the composite diesel oil and takes effects of reducing carbon deposition of a nozzle, eliminating smoke and supporting combustion; dimethyl carbonate can greatly reduce or basically eliminate the combustion smoke of a diesel engine, reduce the pollution of diesel oil combustion to environment and simultaneously improve the heat engine efficiency of the diesel engine, dose not lower fuel oil kilometers, and is nontoxic and environmentally-friendly; organic matters such as tertiary butanol and isobutanol can improve the intersolubility among the components of the composite diesel oil for the automobile, can improve the condensation point of the diesel oil and improve the condensation point of the composite diesel oil for the automobile; and isobutanol can also reduce the content of sulfur in the fuel and the emission of harmful substances.

The invention discloses a piston ring, in particular to a joint type magnetic piston ring. The joint type magnetic piston ring comprises a magnetic joint, which is characterized in that the magnetic joint comprises three sections of 120-degree arc, the radii of the three arcs are the same, and the magnetism at the contacted positions of the three arcs is the same. The invention has the beneficial effects that the bonding property of a magnet and a cylinder sleeve is good and is more uniform than that of an elastic single opening ring, therefore the cylinder sleeve is not easy to form an ellipse; after the wear of the ring and the cylinder sleeve, overlapped parts can automatically extend to fill wearing capacity, and no opening wakening air leakage exists, thereby improving the tightness, ensuring uneasy aging of lubricating oil, prolonging the service life of machine parts and improving the efficiency of heat engines.

The invention discloses a solar hot-air rotor engine and an electric motor car. The solar hot-air rotor engine comprises a rotary cylinder, a pentagonal rotor located in the rotary cylinder and a first end cover and a second end cover which are located on two ends of the rotary cylinder, wherein the inner wall of the rotary cylinder is in sliding connection with the pentagonal rotor so that five air chambers are defined; an air sucking opening used for sucking external air is formed in the first end cover; heat exchange fins which are used for absorbing solar energy and heating air sucked in the five air chambers are arranged on the outer wall of the rotary cylinder; an exhaust opening used for exhausting hot air is formed in the second end cover; the rotary cylinder and the pentagonal rotor move relatively to change volumes of the five air chambers, so that external air is sucked in and hot air is exhausted; and mechanical work is output. The solar hot-air rotor engine and the electric motor car provided by the invention have the advantages that torque storage is high; heat engine efficiency is high; output power is large; and economy is good.

The invention provides a stirling generator of using afterheat to desalinate seawater. A reversible stirling heat engine is applied as a generator; a heat flow-in end is arranged in a heat source; heat flow-out ends are arranged on a fresh water condenser and a seawater evaporation tank; the fresh water condenser is arranged on the seawater evaporation tank; an annular fresh water collecting tank is arranged at the bottom inside the fresh water condenser; a fresh water flow-out pipe inlet is connected to the bottom of the fresh water collecting tank; cooling fins are distributed on the side surface of the fresh water condenser; an air entering flue at the center of the fresh water condenser is communicated with a fresh water condensation flue of an annular space out of the center of the fresh water condenser to form an air circulating flue; a fan is arranged at an air inlet of the air flue; an air outlet of the air flue is annular, is opened downward and faces to the cooling fins. A sea salt exhaust port is formed in the bottom of the seawater evaporation tank; a sea salt exhaust valve is arranged. The stirling generator is high in heat engine intensifying degree in seawater cooling, and high in heat engine efficiency, and can be widely applied to vessels and island infrastructures by electricity-water cogeneration, and the comprehensive performance indexes of a nuclear submarine and an aircraft carrier can be greatly improved.

The double-piston DC scavenging engine is characterized by that in same cylinder interior it contains two opposed pistons which can be reciprocated, a crankshaft connected with two opposed pistons, agroup of two piston rods, a group of two pitman rockerarms, a group of two connecting rods mounted on a crankshaft, two groups of eccentric shaft main shafts and eccentric shaft rockerarms which are completely and symmetrically arranged and two groups of wormwheels and worms which are symmetrically arranged and connected with a controllable motor. Said engine can be made up by using ceramic material, and can use various alcohol fuels and vegetable oil fuels, also can use regenerated clean fuel.

The invention discloses a composite diesel composed of the following components, by weight: diesel, dimethyl carbonate, turpentine, n-hexane, isobutanol, naphthenic acid, kerosene, coal tar and heavy aromatics. With the composite diesel, composite diesel dynamic performance is improved, and functions of reducing nozzle carbon deposition, suppressing smoke and supporting combustion are realized. With dimethyl carbonate, combustion smoke of a diesel engine can be greatly reduced or substantially eliminated, environment pollution caused by diesel combustion can be reduced, and the heat engine efficiency of the diesel engine can be improved.

The invention discloses a disk solar thermoelectric generator which comprises a heliostat system, a condenser, a receiver, a high temperature heat storage tank and a working medium phase change engine, wherein sun is tracked by the heliostat system in real time; sunlight is reflected on the receiver by the condenser; high heat flux radiant energy reflected from the condenser is absorbed by the receiver positioned on a support, is transformed into high temperature heat of working fluid, and is stored in a heat transfer fused-salt medium in the high temperature heat storage tank; the working medium in the working medium phase change engine is heated by the high temperature fused-salt medium to drive the working medium phase change engine to rotate and make the generator generate electricity, and the heat energy is transformed into mechanical energy. The invention has the advantages of low cost, reasonable design, simple structure and high work efficiency, and has the characteristics of no exhaust emission, oil and coal replacement, no environmental pollution and low carbon.

The invention discloses a connecting rod type crankshaft-free engine comprising an output shaft. The output shaft is provided with a first unidirectional wheel and a second unidirectional wheel, and short connecting shafts are arranged at the left ends or the right ends of the outer side faces of the two unidirectional wheels correspondingly; a first piston and a second piston are arranged on theupper side and the lower side of the output shaft, and a first long connecting shaft and a second long connecting shaft are arranged on piston rods of the two pistons correspondingly; the front end and the rear end of the first long connecting shaft are connected with the short connecting shaft located on the first unidirectional wheel and the short connecting shaft located on the second unidirectional wheel through a first transmission connecting rod and a first driven connecting rod correspondingly; and the front end and the rear end of the second long connecting shaft are connected with theshort connecting shaft located on the first unidirectional wheel and the short connecting shaft located on the second unidirectional wheel through a second driven connecting rod and a second transmission connecting rod correspondingly. The connecting rod type crankshaft-free engine adopts a connecting rod type transmission mechanism and fully utilizes the unidirectional locking characteristic ofthe unidirectional wheels, thus rotating of an output disc is achieved, and the connecting rod type crankshaft-free engine has the advantages of simple structure, small size, low cost, reliable work,high heat engine efficiency, flexible application, high universality and the like.

The present invention to provide a method of operating a thermal energy storage device comprising a body of heat transfer fluid, said body of heat transfer fluid comprising an upper temperature region comprising heat transfer fluid having a temperature above a upper threshold temperature, a lower temperature region comprising heat transfer fluid having a temperature below a lower threshold temperature and a thermocline region separating the upper and lower temperature regions and comprising heat transfer fluid having a temperature above a lower threshold temperature and below an upper threshold temperature, wherein during charging of the thermal energy storage device, heat transfer fluid is removed from the thermocline region of the body of heat transfer fluid and when the temperature of the heat transfer fluid being removed from the thermocline region of the body of heat transfer fluid rises above a maximum temperature, said heat transfer fluid being removed is brought to a temperature equal to or below said maximum temperature, wherein the maximum temperature is above the lower threshold temperature and / or wherein during discharging of the thermal energy storage device, heat transfer fluid is removed from the thermocline region of the body of heat transfer fluid and when the temperature of the heat transfer fluid being removed from the thermocline region of the body of heat transfer fluid falls below a minimum temperature, said heat transfer fluid being removed is brought to a temperature equal to or above said minimum temperature, wherein said minimum temperature is below the upper threshold temperature.

A rolling piston installed between a piston and a cylinder includes: a plurality of balls, wherein the balls are connected end to end to form the rolling piston ring, and a quantity of the balls is no less than three; or comprising: a plurality of columns, wherein the columns are connected end to end to form the rolling piston ring, and a quantity of the balls is no less than three; or comprising: balls and columns, wherein the balls and the columns are connected end to end to form the rolling piston ring, and a total quantity of the balls and the columns is no less than three; wherein both the balls and the columns are extendable, and / or a recess on the piston for installing the rolling piston ring is extendable and a slide on the cylinder for installing the rolling piston ring is extendable.

The invention discloses a methanol diesel oil additive and simultaneously discloses methanol diesel oil with the methanol diesel oil additive. The methanol diesel oil prepared by the invention is prepared by mixing 0.04-0.07 part of ferrocene, 2-5 parts of acetone, 4 parts of diemethyl carbonate, 2-3 parts of isobutanol, 2-3 parts of toluene, 70 parts of diesel oil and 20-25 parts of methanol. The methanol diesel oil has the advantages of low corrosion, good intersolubility and swelling property, uniform texture, high flash point, low condensation point and high cetane number, is safe to use and meets all indexes of automobile diesel oil GB19147-2009. The methanol diesel oil can be applied to internal-combustion engines, general engines, power plant fuels, burner substances and the like, thus the applicable range of the methanol diesel oil is wide.

The invention belongs to the field of engines. To solve the problems that fan pieces of an existing turbofan engine cannot fix gas, the gas temperature during work cannot be too high, thrust only canbe increased mainly by increasing oil firing, and energy consumption is large, a multipurpose blade type active engine is provided. The multipurpose blade type active engine comprises a heat rotatingcavity and a rotor. The heat rotating cavity is a crescent cavity. A gas inlet and an exhaust opening are formed in the two ends of the cavity. The rotor is mounted on the inner side of the heat rotating cavity. The rotor and the inner arc face of the heat rotating cavity are coaxial. A coaxial sealing wheel is arranged between the rotor and the heat rotating cavity. The rotor comprises a shaft and multiple blades. The blades are evenly distributed on the shaft in the circumferential direction of a support. The blades stretch into the heat rotating cavity after penetrating the sealing wheel, and the blades can freely stretch out and contract in the radial direction along the radius change of the inner wall face of the heat rotating cavity. Gas enters through the gas inlet, then the bladesare pushed to rotate, and due to the reducing structure of the heat rotating cavity, the blades can freely stretch out and contract along with the curvature radius change of the heat rotating cavity.

The invention provides a high-pressure rotary piston impeller steam power machine and belongs to the field of rotary machines for converting heat energy of high-pressure steam into mechanical energy.Through the steam power machine, the problem of how to fully utilize high-temperature high-pressure steam to improve the heat engine efficiency of the steam power machine is solved. The steam power machine specifically comprises a steam cylinder, wherein the steam cylinder comprises a shell, a bottom plate and multiple annular partition plates arranged on the bottom plate, the partition plates arearranged concentrically from inside to outside, a spindle is arranged on the bottom plate and located at the center of the partition plates, the shell is movably connected with the partition plates through the spindle, a steam inlet is arranged at the inner side of the innermost partition plate, and a steam supply mechanism is connected with the steam inlet; a steam valve is arranged on each partition plate, a baffle is arranged at each steam valve, and the baffles are connected with a rebounding linkage mechanism, which is used for opening or closing the baffles simultaneously; and pistons corresponding to all annular tracks in position are fixedly connected to the inner side face of the shell, and the pistons are location in the annular tracks. Through the steam power machine, full utilization of the steam is realized, the heat engine efficiency is improved, and output power is increased.