(57) Abstract:The invention relates to engines fueled by low-grade heat. The engine is a sealed tank of a heat conducting material separated by a bulkhead on "warm" and "cold" areas, interconnected at the top and bottom. The tank is filled with water so that the top remains airbag. In the upper part of the vessel placed evaporating part of the heat pipe, the condensation of which is outside the heat source and in contact with the atmosphere. Heat pipe performs the functions of the refrigerator. In the upper part of the "warm" region placed turbine with generator. Under turbine there is a narrowing of the "warm" area. The motor is fixed inside the low-grade heat source, adhering to the side wall, where the "cold" area. The engine is minimized heat loss, which increases its effectiveness. 1 C.p. f-crystals, 1 Il. The invention relates to refrigerating machines, and more particularly to engines fueled by low-grade heat.Known gravitational heat engine placed in low-grade heat source, containing GE is rodnoy"), filled with water, air-cushion, turbine generator and refrigerator .The disadvantage of this engine is its low efficiency.The aim of the invention is to increase the efficiency of the engine.This goal is achieved by the fact that gravity-heat the engine, placed in low-grade heat source containing a pressurized container of heat conducting material with insulating bulkhead that separates the tank into two regions ("warm" and "cold"), filled with water, air-cushion, turbine generator and refrigerator, he as a refrigerator includes a heat pipe, the evaporator of which is placed in the upper part of the vessel and the condensing portion extends beyond the boundaries of the heat source. In addition, the engine is mounted on the wall of the heat source, and to the wall adjacent the "cold" region of the vessel.The invention is illustrated by the drawing, which presents the proposed engine.Gravitational heat engine is a sealed container 1 from a heat conducting material, filled with air cushion 2, separated teploizoliruyuschih the second part of the "warm" region 4 is installed turbine 6 with generator (not shown). In the upper part of the vessel placed the evaporation portion 7 of the heat pipe and the condensing portion 8 extends beyond the boundaries of the source of heat and in contact with the atmosphere. In the "warm" region 4 below the turbine 6 has a constriction 9. The engine is mounted inside the heat source, and to the wall 10 adjacent the "cold" region 5 of the tank 1.The engine works as follows. Passing inside of the chimney flue gases with a temperature of 150-350oWith through the wall of the tank 1 is heated the water in the area 4. The water boils. The resulting steam-water mixture has a density less than the density of water and rushes up. Lifting area 4, the steam-water mixture is accelerated in the constricted part 9 acting as the nozzle reaches a maximum speed and drives the turbine 6, which rotates the generator. The evaporation portion 7 of the heat pipe cools the steam-water mixture in which the bubbles of the vapor condenses. Water descends on the area 5 and at the bottom of the tank 1 flows into area 4. The process repeats.Cooling of the steam-water mixture by the heat pipe simplifies the design of the engine and does not require energy costs for cooling. Fit "cold" area to the outer wall of the source of heat increases the effectiveness of the proposed engine.The source of information
1. Pat. RF 2102631, Cited under article Y. of Scrobe "Gravitational heat engine" // Inventor. 1999, 7, S. 13. 1. Gravity is a heat engine that is placed in the low-grade heat source, comprising a sealed container of heat conducting material with insulating bulkhead separating capacity on "warm" and "cold" areas filled with water, air-cushion, turbine, generator and refrigerator, characterized in that the refrigerator uses a heat pipe, the evaporator of which is placed in the upper part of the vessel and the condensing portion extends beyond the boundaries of the source of heat and in contact with the atmosphere.2. The engine under item 1, characterized in that it is attached to the wall of the heat source so that the wall adjacent to the "cold" region of the vessel.
FIELD: mechanical engineering.
SUBSTANCE: invention relates to power plants on base of diesel engines including exhaust gas heat recovery systems. Proposed power plant contains diesel engine connected with electric generator, tank for hydrocarbon material, main line to deliver hydrocarbon material, heat exchanger for fuel oil, tanks fir fuel oil and light fractions of fuel, heater and flash column, flash column is arranged inside heater housing, and heating element is arranged in space between heater housing and flash column. Heating element is connected with atomizer arranged inside flash column. Gas intake and gas outlet branch pipes of heater communicate with space between heater housing and flash column, and branch pipes to let out light fraction and fuel oil communicate, respectively, with upper and lower parts of inner space of flash column. Hydrocarbon material supply branch pipe communicates with inner space of heating element. Gas intake and gas outlet branch pipes are connected, respectively, with outlet branch pipe of diesel engine and exhaust pipe, and branch pipes to let out light fractions and fuel oil are connected, respectively, with cooling heat exchanger and with fuel oil heat exchanger. Branch pipe to supply hydrocarbon material is connected with hydrocarbon material delivery main line.
EFFECT: reduced heat losses in exhaust gas heat recovery systems designed for producing fuels from hydrocarbon raw material, improved efficiency of heat recovery.
2 cl, 2 dwg
FIELD: mechanical engineering; internal combustion engines.
SUBSTANCE: proposed internal combustion engine contains crankshaft, connecting rod, piston, intake and exhaust valves, intake and exhaust manifolds, turbocompressor and nozzle to inject water installed in intake manifold before turbine of turbocompressor.
EFFECT: improved utilization of thermal energy of exhaust gases of turbocharged internal combustion engines.
FIELD: transport and power engineering; engines.
SUBSTANCE: proposed multicylinder engine has pump and power cylinders interconnected by transfer chamber, with pistons moving synchronously and rigidly connected with rods on ends of which crossmember with two pins is arranged, with connecting rods fitted on pins and rotation opposite to each other, and two synchronizing gears. One more power cylinder operating on steam is added to pump and power cylinders. Steam is formed owing to water heating in heat exchanger arranged in transfer chamber and in exhaust space of power cylinder.
EFFECT: increased efficiency of engine and reduced overall dimensions of engine.
FIELD: power engineering.
SUBSTANCE: invention relates to cogeneration plants with Stirling engines designed for simultaneous production of electric energy and heat. Proposed cogeneration plant includes Stirling engine with electric generator fitted on one shaft, Stirling engine cooling system including pump an heat exchange-cooler through which air feed main line passes, external heat supply system with heat exchanger-recovering unit of heat of waste gases and heat exchanger of preliminary heating through which external heat supply system is coupled with cooling system of Stirling engine, and exhaust gas main line. Plant is furnished additionally with gas generator providing production of generator gas from different types tires of locally available fuel, generator gas main line connecting gas generator with combustion chamber of Stirling engine, main line for partial return of exhaust gases into combustion chamber of stirling engine, pump in external heat supply system providing flow of heat carrier in succession through preliminary heating heat exchanger and heat exchanger-recovering unit of heat of waste gases. Wood, peat and oil shale can be used as locally available fuel.
EFFECT: possibility of operation of different locally available fuels such as wood, peat, oil shale, etc, increased service life of engine, simplified design of system to convey heat from engine to external consumers.
FIELD: electrical engineering, possibly electric energy generating plants on base of liquid low-potential power source.
SUBSTANCE: electric energy generating plant includes converter of neat energy of low-potential water to kinetic energy applied to electric energy generator. Plant is mounted on draining pipeline and it has linear-structure electric energy generator. Said converter is made material with shape memory effect having transition point between temperature of low-potential water and environment and it is kinematically coupled with armature of linear- structure generator. Converter is jointly mounted with possibility of moving from low-potential water to environment and from environment to low-potential water. Environment may be in the form of water pool to which low-potential water is discharged.
EFFECT: possibility of using heat of low-potential waters with temperature 30 - 50°C discharged every day from cooling systems of waters of nuclear and heat electric power stations.
2 cl, 2 dwg
FIELD: domestic facilities.
SUBSTANCE: invention relates to combined heat and power supply plant for household use. Proposed domestic combined heat and power plant contains Stirling engine and water heater. Stirling engine is installed for heating by first burner supplied with fuel gas. Plant contains additionally intake gas duct passing from Stirling engine in contact with fuel gas intake in first burner preliminary heating of fuel gas delivered into first burner and then heating of water which is subsequently heated by water heater. Water heater is provided with second burner. Plant is designed so that outlet gas and gas from second burner form combined flow immediately after heating of water, and combined flow for heating of water is located higher from outlet gas relative to flow. Plant contains additionally cooler of Stirling engine arranged for heating water higher than outlet gas relative to direction of flow.
EFFECT: provision of effective heating of water, reduced cost of heating and provision of compact device.
2 cl, 4 dwg
SUBSTANCE: invention relates to heat supply systems, particularly, to heat-generating plants. Power plant consists of heat engine, for instance, internal combustion engine, with, at least, one mechanic energy shaft, heat-exchangers of engine cooling, heat-exchanger of heat removal from gas exhaust, all heat-connected via the coolant circulation circuit, with, at least, one heat energy consumer, in which shaft of heat engine is kinematically connected with the drive shaft of cavitating-vortex heat-generator, which - at least, via inlet and outlet hydraulic channels - is connected to the mentioned circulation loop of coolant, for example, water. To provide self-purification of heat-exchangers, cavitating-vortex heat-generator is installed directly before the inlet to heat exchanger of heat removal from engine gas exhaust. Installation provides possibility to control power of the cavitating-vortex heat-generator at stabilised (set) rotations of engine drive shaft and possibility to control a ratio between power values removed from the engine to generate heat and electric energy.
EFFECT: enhancement of operational characteristics; expansion of functional abilities.
5 cl, 2 dwg
FIELD: engines and pumps.
SUBSTANCE: external combustion Stirling engine and electric generator are fitted on one shaft with the internal combustion engine (ICE). Every ICE cylinder is provided with a magnetic field source arranged in the upper part of the former and made in the form of an annular electromagnet built in the cylinder wall, or as several radial electromagnets. The Stirling engine working cylinder is enclosed in a housing with its inner space communicating with the ICE exhaust system, the electric generator being wired to the magnetic field source.
EFFECT: lower toxicity of exhaust and fuller combustion of fuel.
FIELD: engines and pumps.
SUBSTANCE: internal combustion engine incorporates crankshaft, con-rod, piston pin, cylinder, intake and outlet valves, inlet and outlet manifolds, turbo-compressor, nozzle to inject water into the outlet manifold and pipeline to feed water to the aforesaid nozzle. In compliance with this invention, the aforesaid pipeline feeding water to the nozzle is furnished with the fuel combustion product heat regenerator and water is injected into the outlet manifold in overheated state.
EFFECT: increased steam formation speed in injecting water into outlet manifold and improved enthalpy of combustion products.
FIELD: engines and pumps.
SUBSTANCE: invention relates to ship building and power engineering. Proposed method consists in guiding the ship main internal combustion engine exhaust gases via the engines turbo compressors into waste-heat recovery boiler whereto heat carrier is fed from the steam separator for it to be heated by the aforesaid gases and in feeding the steam formed in the boiler evaporation pipes into the steam separator. Here note that the ship main engine exhaust gases are forced into the exhaust pipe, their temperature behind the aforesaid waste-heat recovery boiler is kept, in all operating ranges, not less than 160°C. In compliance with this invention, given the reduction of the main engine output or the ship auxiliary loads heat consumption drop, the boiler evaporation pipe water heat carrier is replaced with an air heat carrier. For this, the boiler evaporation pipes are, first, disconnected from the steam separator by appropriate shut-off valves, the boiler evaporation pipe water heat carrier is dried off for the pipes to receive air heat carrier by communicating them with air reservoir communicating, in its turn, with the ship compressed air system. Then, air heat carrier is heated by exhaust gases in the waste-heat recovery boiler to be fed into heat exchanger for sea and mineral water desalination. Note here that brine and hot air resulted at the desalination apparatus outlet are used for ship service purposes while generated steam is fed into separator for its condensation. The proposed device incorporates additionally a heat exchanger for water desalination, a compressed air reservoir communicating with the ship compressed air system. Note here that the said reservoir outlet communicates via pressure control and shut-off valves with the waste-heat recovery boiler feed pipeline at the section between its coils and shut-off valve. The boiler coil discharge pipeline at the section between the boiler shut-off valve and coils communicates via the said shutoff valve with the said desalination heat exchanger heat carrier inlet. Note also that the boiler coils are furnished with devices to remove working heat carrier and that the desalination apparatus outlets communicate with the ship brine, steam and hot air consumers.
EFFECT: higher degree of internal combustion engine exhaust gas recovery.
2 cl, 1 dwg