Operating method of internal combustion engine with heat regeneration in cycle and motor used for its implementation

FIELD: engines and pumps.

SUBSTANCE: in an engine containing at least two cylinders, the air is compressed in a compressor cylinder, it is transferred through a heat exchanger where heat is regenerated from the combustion products, into the working cylinder, in which the fuel is injected, its combustion with carrying out of expansion work. The presence of a system for monitoring and maintaining the pressure in the air circuit of the heat exchanger is new for carrying out the thermodynamic cycle and ensuring the engine's operability. The system for maintaining the pressure in the air circuit of the heat exchanger includes an occasional pumping compressor, a compressed air receiver, and system monitoring and control equipment.

EFFECT: increase in the efficiency of the internal combustion engine.

4 cl, 3 dwg

 



 

Same patents:

FIELD: power industry.

SUBSTANCE: invention can be used in pre-starting and auxiliary heat power plants of vehicles for simultaneous generation of heat and the electric power. Pre-starting heat power plant for vehicles contains an internal combustion engine (1), an electric generator (2), a waste heat exchanger (3) utilising the heat of exhaust gases, a mixing device (4) with an electric heater, a liquid pump (8) with the electric drive, a check valve (5) and hydraulic lines (9), (10), (11) with heat carrier. The plant is also contains the oil pump (15) with the electric drive, the recuperative heat exchanger (18) for heating of engine oil and the oil line which is built in the oil pan with the nozzles directed towards necks of the cranked shaft and towards the oil pump of the internal combustion engine, oil hydraulic lines. The recuperative heat exchanger (18) of heating of engine oil according to the series hydraulic circuit is connected by hydraulic lines of the heat carrier to the mixing device (4) with the electric heater. The oil pump (15) with the electric drive through oil hydraulic lines supplies engine oil to the recuperative heat exchanger (18) for heating of engine oil after which heated engine oil is supplied into the oil line which is built in the oil pan with the nozzles directed towards the necks of the cranked shaft and towards the oil pump of the internal combustion engine.

EFFECT: design simplification and reduction of dimensions.

1 dwg

FIELD: power industry.

SUBSTANCE: present invention relates to the design and method of the heat energy conversion to the mechanical energy. The design contains linear loop (3), circulation device (4) ensuring refrigerant circulation in the linear loop (3), evaporator (6) where the refrigerant will be evaporated using the heat source (7), turbine (9) made with possibility to drive using the evaporated refrigerant the condenser (12) and gathering tank (14) to store the refrigerant that does not circulate in the linear loop (3). The design contains the control box made to estimate degree of the linear loop (3) filling. The flow device (16, 30) supplying the refrigerant from the gathering tank to the linear loop is made with possibility to supply the gaseous refrigerant from the gathering tank to the area of the linear loop, where the refrigerant is in gaseous phase, or with possibility of supply of the liquid refrigerant from the gathering tank to the area of the linear loop, where the refrigerant is in liquid phase.

EFFECT: improved design.

10 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in engine-construction. Air-steam internal combustion engine contains piston engine (1) of internal combustion, high pressure steam drum (2), radiator (4), screw steam engine (3), radiator (4), high pressure liquid pump (6), storage tank (5), feeding tank (8) and heat insulation of engine (1) case and drum (2) of high pressure steam from the environment. Cooling and heat discharge from piston engine (1) of internal combustion is realized by refrigerating liquid with lower boiling temperature and cooling jacket, used as steam-producing boiler, connected with high pressure drum (2). In drum (2) increase of steam temperature is achieved due to heating with exhaust gases passing through drum. Conversion of steam heat energy into additional mechanical work is realised by screw steam engine (3). Steam, cooled after expansion in screw steam engine (3), by means of radiator (4) installed in condensation contour is condensed into liquid, which is supplied from storage tank (5), connected with feeding tank (8) through check valve into cooling jacket of piston engine (1) of internal combustion by high pressure liquid pump (6) for re-use.

EFFECT: increase of steam temperature in drum of stream-producing boiler.

1 dwg

Ice liquid heater // 2535291

FIELD: engines and pumps.

SUBSTANCE: heater comprises ICE, electrical generator, heat exchange offgas heat recovery unit, offgas main line, fluid lines, electrically drive fluid pump, check valve and tank with electric heater. In compliance with this invention incorporates extra recuperative heat exchanger for cooling of coolant with electrically driven blower and three-way valves with servo drive. Note here that fluid electrically driven pump is communicated via coolant fluid lines with ICE cooling system. Said system accommodates the tank with electric heater and heat exchanger-offgas heat recovery unit. Said heat exchanger is connected via fluid line with the first three-way valve with servo drive. The latter is arranged downstream of check valve in fluid line feeding coolant from ICE to carrier heater radiator lines and those of aforesaid recuperative heat exchanger. Second three-way salve with servo drive is arranged upstream of electrically driven fluid pump to communicate coolant feed and discharge lines with carrier ICE. Besides, ICE exhaust gases are fed via offgas main line to recuperative heat exchanger.

EFFECT: higher efficiency of pre-starting heating, higher thermal efficiency, decreased overall dimensions.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive industry. Electric power generator (1) exploits the heat of off-gas formed in ICE operation and comprises generator (3) with off-gas inlet pipe (4) and exhaust pipe (5). This device has heat exchange section (6) with heat exchanger (10) incorporating thermoelectric element (11) and cooler (12) locked with the latter. Heat exchange section (6) has multiple off-gas passages (9) directed across inlet pipe (4) and communicated with several heat exchangers (10). At least one part of the latter incorporates, at least, one thermoelectric element (11) and at least one cooler (12). Off-gas passages (9) and thermoelectric elements (11) are directed radially. Invention covers also the vehicle incorporating aforesaid electric power generator.

EFFECT: higher rate of heat power conversion into electric power.

13 cl, 8 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to diesels. At starting, this diesel runs in four-stroke cycle with compressed air heating while at changeover to two-stroke cycle compressed airflow is divided in two flows. Note here that first flow is heated by off-gas heat to fuel ignition temperature by regenerative heat exchange while second flow is heated by recuperative heat exchange. At first stroke initial phase terminates combustion chamber filling with air from first flow, combustion and expansion of gases formed by combustion. At second stroke, off-gas is ejected and purged by second airflow at rarefaction created by ejection. At second stroke end, fuel is injected outside combustion chamber; fuel-air mix is formed and ignited by second airflow. Portion of fuel and fire mix are fed into combustion chamber being actively filled with first airflow. Engine cylinder head is composed by two chambers communicated with combustion chamber. First said chamber makes a antechamber with pump-injector while second said chamber is composed by regenerator. Additionally, this device incorporates ejector connected via exhaust manifold with discharge valve, receiver and pneumatic system composed by pipeline with solenoid valves. These are connected to regenerator and heat exchanger. Besides, pipelines with solenoid valves and nozzles are connected to cylinder, exhaust valve pump-injector servo drives.

EFFECT: higher efficiency, simplified design.

2 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention can be used in automotive vehicles equipped with ICEs. Proposed power plant comprises ICE (1), steam generator (3) arranged at ICE exhaust manifold (4), condenser (9) communicated with said steam generator, steam turbine (6), steam accumulator (5) and check valve (13) arranged ahead of said accumulator. Steam generator (3) is communicated with steam turbine (6) via steam accumulator (5). Additionally, this power plant comprises electronic control unit (11), steam feed solenoid valve (15) arranged downstream of accumulator (5), temperature gage (12) at steam generator (3), wheel angular velocity transducer (18), pressure gage (14) at steam accumulator (5), steam turbine (6) shaft rpm transducer (16) and variator (7). Steam turbine (6) is articulated with variator (7). Control unit (11) is electrically connected with temperature gage (12), pressure gage (14), wheel angular velocity transducer (18), steam turbine shaft rpm transducer (16), steam feed solenoid valve (15) and variator (7).

EFFECT: fuel savings, lower toxicity of exhaust gases.

2 dwg

Vehicle power plant // 2499902

FIELD: engines and pumps.

SUBSTANCE: proposed power plant comprises ICE with turbo compressor equipped with intake and exhaust pipes and communicated with the engine intake and exhaust manifolds. Power plant comprises supercharging air cooler with hot and cold chambers, coolant circulation circuit including evaporator, expander and refrigerator, brake system compressor drive by ICE and having intake pipe. Brake system compressor intake pipe is furnished with air filter including case with tapered bottom accommodating steam trap while case top section accommodates converging nozzle with inlet and outlet. Nozzle inner surface has screw grooves arranged in lengthwise direction from inlet to outlet. Baffle plate is arranged ahead of outlet. Engine exhaust pipes are equipped with thermoelectric generator composed of a casing with two flow channels for engine exhaust gases and sucked atmospheric air and a set of differential thermocouples with hot ends located in exhaust gas channel and cold ends in sucked atmospheric air channel. Evaporator is connected with suction pipes of turbo compressor via ejector provided with triple valve. Exhaust gas channel inlet is communicated with exhaust pipes while its outlet is communicated with atmosphere. Atmospheric air flow channel inlet is communicated with suction pipes via triple valve while its outlet communicates with ejector mixing chamber.

EFFECT: higher engine efficiency.

3 dwg

FIELD: engines and pumps.

SUBSTANCE: diesel feed system comprises fuel tank, fuel heater, coarse filter, low-pressure fuel pump, fine filter, high-pressure fuel pump, atomiser and fuel lines. Besides, it is equipped with fuel heater driven by waste gas heat power, fuel heater switch arranged at engine exhaust system, control unit, flow section area variation and fuel heating cutoff mechanism, waste gas flow rate controller, fuel temperature gages and solenoid valves.

EFFECT: faster fuel heating.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: automobile drive assembly includes internal combustion engine (1) connected to a driven shaft. There is waste heat utilisation system (5), by means of which at least some amount of waste heat is removed from internal combustion engine (1) and/or from exhaust gas outlet system (10) installed after internal combustion engine (1). At least some amount of waste heat is converted by means of thermally driven energy converter (4) to electric energy that is at least partially supplied at least to one additional consumer and/or to electric onboard network of the automobile. In addition to waste heat utilisation system (5) there provided is additional heat source (2) having the possibility of feeding thermally driven energy converter (4) with heat; at that, waste is removed from the cooling system cooling the internal combustion engine during operation.

EFFECT: reduction of drive assembly components.

14 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: in conversion of chemical substance potential energy in kinetic power of gas flow and, then, in mechanical work, high-temperature moving gas flow is formed. Moving high-temperature gas flow converted in mechanical work is formed due to thermal or thermo catalytic oxidation of nitrous oxide (N2O) in reactor composed of the mix of nitrogen (N2) and oxygen (O2).

EFFECT: high-temperature moving gas flow converted in kinetic power in non-polluting process.

FIELD: engines and pumps.

SUBSTANCE: moving high-temperature gas flow converted in mechanical work is formed due to thermal or thermo catalytic oxidation of nitrous oxide (N2O) in reactor composed of the mix of nitrogen (N2), oxygen (O2) and inert gas.

EFFECT: high-temperature moving gas flow converted in kinetic power in non-polluting process.

FIELD: engines and pumps.

SUBSTANCE: two-stroke engine of internal heating of working medium includes casing, cylinders with finning and two support axes directed perpendicular to rotation axis of cylinder, lower cover plates of cylinders, pistons with outlet valves, which are located at their bottoms, stocks, detachable crankshaft, rolling bearings, valves, blade-type fan and a flywheel. Crankshaft has a flywheel. Stocks that are introduced to volumes of cylinders through central holes of lower cover plates of cylinders and connected to the pistons dividing the cylinders into working and auxiliary cavities are attached to bellcranks. There are outlet valves on front surface of pistons. Cylinders are fixed by means of support axes through bearings in the casing. Transverse slots that are covered with valve plates forming the inlet valves are made in cylinders opposite outlet valves located in pistons. Intake pipes taken out of the casing are installed in cylinders on the casing at the points opposite the location points of transverse slots. Free end of crankshaft is connected through pulleys by means of belt transmission to blade-type fan feeding the air to the casing volume through filtering panel. Engine has top cover plates of cylinders, in which there made on end working surface are channels connected to each other and representing a parable in cross section, heat-insulating casings, which are fixed on external surface of top cover plates of cylinders, electric heating elements, sliding current collectors, hold-down current conductors, crankshaft position sensor, electronic control unit of load current interruption, accumulators, electric current generator and leads. Forming the working cavities, upper ends faces of cylinders are closed with top cover plates of cylinders. Auxiliary cavities of cylinders are filled with oil to the level when it is touched with skirts of pistons. Electric heating elements are fixed in channels of cover plates of cylinders; at that, two connecting ends of electric chain of the above elements are connected to two outward projecting sliding current collectors fixed on each cover plate of cylinder. Hold-down current conductors are fixed on the casing, directed and bent along the radius of the rolling trajectory of sliding current collectors and have contact to them, and are connected to the buses taken out to the outer side of the casing. Buses of hold-down current conductors are connected by means of leads to accumulator through electronic control unit of load current interruption, which has wire communication to position sensor of crankshaft, which is installed on the casing. Electric current generator is connected through mechanical transmission to crankshaft. Through-type channels the inlets of which are shutoff with inlet valves installed on the casing and on end face of free end of crankshaft are made in casing body, in crankshaft body and in stock body for periodic oil lubrication of bearings.

EFFECT: heating of working medium of the engine by means of electric heating element.

2 dwg

Thermal engine // 2460898

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises fire-box with heat exchanger and compression-expansion unit arranged in engine housing. Rotor is arranged in housing cylindrical chamber. Two roller contactors are arranged in housing seats and coupled via synchroniser with aforesaid rotor. Said rotor is furnished with, at least, two vanes that make compression and expansion chambers together with contactors. Work fluid feed and discharge channels are made in said housing chambers. Expansion chamber inlet channel houses slide valve connected via synchroniser with rotor. Aforesaid channels are communicated with atmosphere. Compression chamber work fluid discharge channel is communicated via check valve arranged therein with heat exchanger. Heat exchanger is communicated with expansion chamber work fluid feed channel.

EFFECT: rotary thermal engine.

10 cl, 5 dwg

FIELD: engine engineering.

SUBSTANCE: method comprises generating high-temperature gas flow by means of thermal or thermal-catalytic decomposition of N2O in mixture with inert gases in a reactor whose product is a mixture of nitrogen, oxygen, and inert gas.

EFFECT: enhanced efficiency.

Two-stroke engine // 2293198

FIELD: mechanical engineering.

SUBSTANCE: proposed two-stroke crankcase displacement scavenging engine contains at least one cylinder with piston, and it is provided with heater separated from cylinder by pneumatic valve maintaining gauge pressure of working medium in heater.

EFFECT: provision of possibility of operation of different fuels.

2 dwg

FIELD: mechanical engineering; external combustion engines.

SUBSTANCE: proposed timing gear of external combustion engine with combustion chamber arranged between cylinder block of compressor and cylinder block of engine operating continuously and including cups with ports rotated by crankshaft and installed in center of ring space of cylinder heads. Ring space of cylinder head is divided by bridges into two channels. Suction takes place along one channel in compressor cylinder block, and delivery is effected along second channel into combustion chamber. In engine cylinder block gases after combustion chamber are delivered along one channel and exhaust gases, along second channel.

EFFECT: complete combustion of fuel with low octane rating.

2 cl, 3 dwg

FIELD: power engineering; power plants.

SUBSTANCE: invention can be used in engines. Proposed method of producing and converting energy of working medium into mechanical work comes to conversion of energy of expansion of two-component working medium into useful work. According to proposed method, gaseous component is preliminarily compressed separately from liquid component, and then liquid component is injected into compressed gaseous component. Liquid component is preliminarily heated to temperature equal to or higher than temperature of compressed gaseous component. Thus formed two-components medium is expanded with provision of mechanical energy. Liquid component is injected into mixing chamber. Gaseous and liquid components are uniformly mixed in chamber and then, through two-component medium, thus formed, electric discharge is passed of power providing vaporization of liquid components of medium and destruction of molecules of working medium with formation of plasma, water being used as liquid component. Device for forming and converting energy of working medium into mechanical work includes compression-expansion machine made in form of piston machine. Inlet and outlet valves are installed in upper of cylinder of piston machine to pass working medium and nozzle to feed liquid component. Device contains self-contained heat source, system of heating and delivering of liquid component, system of processing and delivering of gaseous component. Device if furnished with round-shaped mixing chamber into which electrodes are introduced through insulating bushings, electrodes being connected by electric circuits with power generator. Nozzle to deliver liquid component is found in upper part of mixing chamber between electrode, and mixing chamber is connected with upper end face part of cylinder by transition channel.

EFFECT: provision of conversion of energy working medium into mechanical work.

3 cl, 1 dwg

FIELD: mechanical engineering; engines.

SUBSTANCE: invention relates to method of obtaining kinetic energy by conversion of potential energy. According to proposed method of conversion of potential energy of chemical substances into kinetic energy of gas flow and then into mechanical work, moving high-temperature gas flow is formed. Said high-temperature gas flow converted into mechanical work is formed as a result of thermal or thermocatalytic decomposition of nitrogen monoxide (N2O) in reactor with production of mixture of nitrogen (N2) and oxygen (O2).

EFFECT: provision of moving high-temperature gas flow with transformed into kinetic energy with no adverse effect on environment.

The invention relates to energy, power plants and engines, running on the hot gases

FIELD: engines and pumps.

SUBSTANCE: invention relates to diesels. At starting, this diesel runs in four-stroke cycle with compressed air heating while at changeover to two-stroke cycle compressed airflow is divided in two flows. Note here that first flow is heated by off-gas heat to fuel ignition temperature by regenerative heat exchange while second flow is heated by recuperative heat exchange. At first stroke initial phase terminates combustion chamber filling with air from first flow, combustion and expansion of gases formed by combustion. At second stroke, off-gas is ejected and purged by second airflow at rarefaction created by ejection. At second stroke end, fuel is injected outside combustion chamber; fuel-air mix is formed and ignited by second airflow. Portion of fuel and fire mix are fed into combustion chamber being actively filled with first airflow. Engine cylinder head is composed by two chambers communicated with combustion chamber. First said chamber makes a antechamber with pump-injector while second said chamber is composed by regenerator. Additionally, this device incorporates ejector connected via exhaust manifold with discharge valve, receiver and pneumatic system composed by pipeline with solenoid valves. These are connected to regenerator and heat exchanger. Besides, pipelines with solenoid valves and nozzles are connected to cylinder, exhaust valve pump-injector servo drives.

EFFECT: higher efficiency, simplified design.

2 cl, 1 dwg

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