Ice operation control method

FIELD: engines and pumps.

SUBSTANCE: method of ICE operation control equipped with a turbocompressor is that when the cold engine starts, the exhaust gas flowing from the turbocharger (9) turbine (8) is throttled. After starting the engine, the exhaust gas flow from the turbine (8) of the turbocompressor (9) continues to be throttled, and a part of this flow is sent through the heat exchanger (12) to the compressor inlet (1). At the end of the warm-up after starting the engine, a part of the exhaust gases is sent through the heat exchanger (12) to the engine inlet valve (5) and the air flow from the compressor (1) is throttled.

EFFECT: improvement of the engine starting qualities, reduction of its warm-up time and hazardous substances emissions into the atmosphere.

2 cl, 4 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: engines and pumps.

SUBSTANCE: invention can be used in internal combustion engines. The invention proposes an electric heater of diesel oil or motor oil, which includes the following: outer casing (2), heating rods (1) and temperature control (3). Each of the heating rods (1) includes an electrode part, a heating part and a cover of the external coating, as well as it is connected to a mounting end of temperature control (3) by means of the electrode part and rigidly attached to outer casing (2) with one of its ends. Temperature control (3) is arranged inside outer casing (2); cavities of outer casing (2) are filled with a liquid sealant, and hole (5) is arranged on outer casing (2) for fixation of the heater in a set position.

EFFECT: heater has a low price; it is composed in the form of a structure; it is safe, reliable and serviceable.

6 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed heater comprises housing with coolant feed and discharge channels and cover tightly coupled with said housing, tubular electrical heater secured therein and motor-drive rotary pump Impeller is fitted on pump rotor shaft inside aforesaid housing Note here that said rotary pump is provided with jacket fitted in heater housing with secured by its one end in the latter in inlet channel zone Its opposite end is secured at housing cover in the area of rotor shaft with impeller exit so that said impeller is located inside aforesaid jacket Note here that said jacket in impeller zone has openings to communicate the jacket inside with heater housing inside Motor rotor is enclosed in cup-like case closed by cup cover on cover outer side and secured at cover inner side Note here that rotor shaft section with impeller fitted thereon extends through cup cover and heater housing cover inside the housing Tubular heater is composed of helical coil arranged around said jacket above its openings and secured at heater housing cover Coolant feed channel, pump jacket and rotor shaft with impeller are aligned.

EFFECT: higher efficiency, electric power saving.

11 cl, 5 dwg

FIELD: heating.

SUBSTANCE: invention claims autonomous device for diesel fuel heating in fuel tank 16, including heat exchanger 1 and heat carrier feed and control system 2. System 2 includes trolley 3 with gas heater 4 for heat carrier, pump 5, accumulator 6, control device 7 and gas cylinder 8 mounted on the trolley, heat exchanger is made in the form of rigid spiral tube mounted on handle 10 by a joint and connected to heater 4 with a flexible hose. Electric pump for heated diesel fuel stirring is installed inside spiral tube of the heat exchanger.

EFFECT: enhanced efficiency of diesel fuel heating in the whole volume of fuel tank.

3 dwg

FIELD: engines and pumps.

SUBSTANCE: measured ambient air and coolant temperatures are used to define air heater operating interval to correct it by fuel mix temperature in combustion chamber at compression stroke end while fuel in nozzle is heated to maximum possible value. After engine start, fuel heating intensity is decreased while nozzle operating heat conditions are kept up with the help of thermal pickup built in the nozzle, heater and control unit and maintained at said level during the entire cycle of post-starting interval with allowance for engine heat conditions and ambient air temperature. Inlet fuel and air controlled heating subject to engine and ambient air temperature allows maintenance of optimum temperature of combustion mix in the engine combustion chamber at whatever operating conditions.

EFFECT: decreased time and power consumption by diesel preparation for starting.

3 dwg

Fuel heater // 2535431

FIELD: machine building.

SUBSTANCE: electric fuel heater comprising body in form of the bolt with cavity in its rod, input and output holes, agitator, ceramic heating element, nickel-chromium spiral connected in series with the ceramic heating element, and casing. The internal cavity of the fuel heater body is made with spiral groove. The fuel agitator installed in the internal cavity of the body is in form of the bolt containing guide part and agitating element in form of the ellipse with spiral groove direct opposite to the spiral groove of the body.

EFFECT: higher efficiency of heat transfer.

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: transport.

SUBSTANCE: engine prestart heating is performed by natural gas feed into prestart heater combustion chamber to heat carrier engine coolant by natural gas combustion heat. Natural gas is fed from low-pressure main line via distribution gas line and gas hose into prestart heater combustion chamber. Prestart heater control system power supply and that of actuators related therewith is performed by connection to power supply located outside the carrier.

EFFECT: higher reliability and efficiency at long stops.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: system to maintain availability for start-up of an internal combustion engine (7) of a diesel locomotive comprises a standard system (4) for cooling of an internal combustion engine (7), a liquid heater (1), connected to the main manifold of the standard cooling system (4), a standard fuel system (18) of an internal combustion engine with a standard fuel tank (23) and a standard injecting fuel pump (19), an additional fuel tank (20), equipped with an overflow pipeline (21), a drain pipeline (22) with a tap and a pipeline connecting the additional fuel tank (20) with the liquid heater (1). There is an additional fuel pump (17), installed in the standard fuel system (18) in parallel to the standard injecting fuel pump (19), an additional oil pump (11), connected in parallel to the standard injecting oil pump (43), a device (15) for booster charge of an accumulator battery (16) of a diesel locomotive, maintaining it in the condition of availability for start-up of the internal combustion engine, and cooling coolant temperature sensors (13) for control of system operation, connected into the pipeline (46) with the lowest coolant temperature in the cooling system of the internal combustion engine. The additional fuel tank (20) of the system is connected into the drain pipeline of the standard fuel system (18) for provision of its reliable filling with diesel fuel. Additional circulating water pumps (30) are installed on inlet pipelines of standard liquid heaters (28) of air in driver's cabins (29) for provision of conditions in them for start-up of the internal combustion engine (7). Supply of the liquid heater (1), circulating electric motors (8), oil (11) and fuel pumps (17), a device (15) for booster charge of the diesel locomotive accumulator battery (16) and elements of the control system (47) is arranged via a separate cabinet (48) of electric equipment from the external source of energy.

EFFECT: increased reliability of system operation and increased time for engine standing idle in cold time of the year as continuously available for start-up.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method consists in gas feed into cylinders and cylinder antechamber, spark ignition of gas in antechambers, and feed of gas combustion product from antechamber into combustion chambers of engine cylinders. At starting gas engine at crankshaft cranking by starter to stable idling rpm, gas is forced into engine cylinder antechamber and/or gas engine cylinders, gas volumetric combustion heat exceeding that of natural bas by some 1.5-2 times and higher. At starting the gas engine, fuel gas can be fed into some cylinders of multicylinder gas engine.

EFFECT: higher reliability of starting and accelerated starting.

2 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: diesel injector spray nozzle for biofuel includes housing (1) and needle (2). Needle (2) is located in housing (1). Annular groove (3) is made on inner surface of housing (1). There is well (6) and fuel spray holes (5) in lower part of housing (1). Inner part of holes (5) is provided with fuel flow shapers. The latter contribute to carbon formation reduction. Each shaper can be made in the form of insert (7) with screw channels, which is then continued to conical chamber (8) and to nozzle holes (5). Insert (7) is made in the form of a screw with double-threaded winding and turns of rectangular section.

EFFECT: possibility of achieving finer biofuel spray is provided.

5 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in internal combustion engines with exhaust gas recycling. Proposed device is intended for ICEs, particularly, diesels. Diesel has intake manifold 10, exhaust manifold 11, intake and exhaust lines 2 and 3, first and second offgas recycling paths, turbo supercharger air cooler 20 is arranged upstream of intake manifold 10 and downstream of offgas second path 60. Turbo supercharger 4 incorporates compressor 40 fitted in intake lone 2 and turbine 41 arranged in exhaust line 3. There are control means 52, 62, 63 to control offgas flow rate and to distribute its between said first and second paths. Besides, this device comprises temperature transducer to measure turbo supercharger outlet gas temperature. Invention discloses also the compressor and air cooler protector, ICE and control device.

EFFECT: efficient protection against mechanical stresses caused by high temperature and fuel cracking.

11 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive industry. EGR system diagnostics in diesel consists in determination of gas temperature and pressure in intake and discharge pipes to construct the model for determination of temperature decrease y=ΔT in EGR coolant by engine control unit. Note here that said model vector parameter θ and input vector x. Engine control unit is used to calibrate the model calibration for estimation of system shift h0 and calculation of the set of primary discrepancies ε (θ0, x, ΔT), starting from model formula and with application of calibration phase results. Calculation of the set of perfected discrepancies εN0) is executed by mathematical formula subject to the quantity of specimens subjected to diagnostics tests. Engine control unit is used to calculate the diagnostics index S by mathematical formula incorporating correlation matrix R0 calculated for sound system. Said diagnostics index S is used for evaluation of EGR coolant efficiency.

EFFECT: ruled out temperature gages in EGR coolant.

6 cl, 3 dwg, 1 tbl

FIELD: engines and pumps.

SUBSTANCE: invention relates to propulsion engineering and can be used in development of supercharging pressure control systems. Proposed process and system allows the feed of exhaust gas ahead of turbosupercharger turbine rotor T via one or several channels across said exhaust gas flow. Two-way valve K is fitted in each bore. Said K can be fitted in or out of T housing. Said T can incorporate a distributor.

EFFECT: higher efficiency of turbosupercharger.

15 cl, 9 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in engine-building. The internal combustion engine contains the cylinder with the piston, inlet and outlet valves (7) and (1), a turbocompressor (10), a channel (8) for air passing from the turbocompressor (9) to the inlet valve (7) and the channel (4) for passing of exhaust gases from the outlet valve (1) to the turbocompressor turbine. The engine contains the multiposition distributor (5) in one of positions interconnecting the channel (4) for passing of exhaust gases through the recirculation channel (2) with the inlet valve (7). In other position the multiposition distributor (5) interconnects the channel (4) for passing of exhaust gases through the recirculation channel (2) with an inlet to the compressor. In the third position the multiposition distributor (5) interconnects the channel (8) for air passing from the compressor (9) with the inlet to the compressor and the recirculation channel (2). The operated valve (3) is installed in the recirculation channel (2) between the channel (4) for passing of exhaust gases from the outlet valve (1) to the turbocompressor turbine and the multiposition distributor (5).

EFFECT: decrease in nitrogen emissions.

2 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: control system defines, for every stroke, an appropriate mass of exhaust gases corresponding to preset power output and timing valve open-close time intervals. At combustion products exhaust stroke for a given piston and for time interval defined by control system, the latter closed the exhaust valve and open the bypass valve. Portion of exhaust gases left in piston working chamber is displaced by piston via bypass valve into piston compression section and mixed therewith via atmospheric air sucked in via check valve. At the next stroke, piston displaces in opposite direction while the mix of exhaust gases with air flows via check valve from the piston compression chamber into the combustion chamber.

EFFECT: higher efficiency of engine operation.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: system comprises gas timing valve fluid control gear, fluid flow control slide, hydraulic accumulator, timing valve drive piston and timing valve. This gas timing valve fluid control gear defines fuel amount, exhaust gas amount and engine timing valve closure moment in compliance with preset current ICE output. At ICE offgas exhaust stroke at time moment defined by gas timing valve fluid control gear, said slide forces working fluid from hydraulic accumulator to under-piston of timing valve drive. Therefore, working fluid pressure makes timing valve gear drive piston force timing valve engaged therewith to closed position. This causes the portion of exhaust gases to stay in ICE cylinder. Note that at the next air of fuel mix suction stroke, exhaust gases are mixed therein with sucked air or fuel mix.

EFFECT: higher efficiency.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in internal combustion engines. Thermal ICE comprises at least one combustion chamber for inlet gases including the mix of combustible, e.g. gasoline, and oxidiser, e.g. air, communicated with gas intake circuit (A) and exhaust gas discharge circuit (B), exhaust gas circulation circuit (C, D) communicating exhaust circuit with intake circuit, and exhaust gas circulation adjustment system. The latter can circulate exhaust gas for at least one working point defined by engine mode and torque developed by the engine whereat output torque is 50% larger than the engine maximum torque. Since engine operation is related with such parameters as compression ratio and exhaust gas circulation factor, adjustment system is configured to make circulation factor at said working point expressed in terms of mass fractions equal to thrice as high the engine compression ratio decreased by 13, tolerance making 2. Invention covers versions of thermal engine design, engine exhaust gas circulation control system, method for definition of engine exhaust gas circulation circuit dimension, method for definition of engine exhaust gas circulation law and vehicle with said thermal engine.

EFFECT: ruled out detonation at whatever operating conditions.

10 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine with spark ignition is equipped with timing phase control mechanism to vary intake valve closure interval after intake TDC and EGR-mechanism making portion of waste gas flow back into combustion chamber as EGR-gas. Said EGR-gas is controlled to make intake valve shift toward lag side so that EGR-gas ratio decreases solely in region whereat intake valve closure moment is located on lag side at particular closure moment. Invention covers the engine design version.

EFFECT: ruled out air-fuel ratio variations.

12 cl, 33 dwg

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine with spark ignition is provided with a variable compression degree mechanism (A) capable of changing of mechanical compression degree, with a mechanism for adjustment of gas distribution of phases (B) capable of control of closing moment of an inlet valve and with a mechanism (23, 24, 25) EGR, supplying a part of waste gas through EGR-channel as EGR-gas to a combustion chamber. In internal combustion engine with spark ignition during engine operation at low load the degree of mechanical compression is higher as compared to that during engine operation at high load. The higher EGR part is, the higher the degree of actual compression is.

EFFECT: improving fuel flow.

18 cl, 17 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method relates to ICE comprises multi-flow fuel mix feed system including several fuel mix pipelines to feed fuel to different groups of cylinders including, at least, one cylinder. Every said pipeline incorporated, at least, one shutoff valve connected to control device intended for controlled fuel feed into ICE subject to preset operating parameters of the engine. Multi-flow offgas discharge system comprises several appropriate pipelines extending from said different groups of cylinders. Offgas circulation multi-flow system with several offgas pipelines to feed offgas from offgas system to fuel feed system. At least one offgas pipeline is branched from, at least the part of offgas pipelined to be brought back to fuel feed system. In compliance with proposed method, off-gases are circulated with flow crossing whereat offgas pipelines 21, 22 are branched from offgas pipelines 16, 17 of definite flow to be bought back to fuel feed pipelines of another flow. Shutoff elements 11 of separate fuel feed pipelines are controlled so that offgas from pipeline 16, 17 of the other offgas flow, its pipeline not being disconnected for fuel feed, is fed to one fuel feed pipeline disconnected by shutoff element 11, 12, via circulation pipeline 21, 22. Invention covers also device for ICE operation.

EFFECT: increased fraction of circulated offgas, better filling of cylinders.

8 cl, 1 dwg

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