Management device for internal combustion engine, emissioning emissions of white smoke

FIELD: engines and pumps.

SUBSTANCE: control device for the internal combustion engine includes an exhaust gas control device in the exhaust system of the internal combustion engine. The exhaust gas control device comprises an intake air volume regulator, a temperature sensor and an electronic control unit. The temperature sensor has the ability to measure the temperature of the exhaust gas control unit. The electronic control unit has the ability to estimate the amount of sulfur compound accumulation. The value of sulfur compound accumulation is the amount of sulfur compound accumulated on the exhaust gas control device. When a specific condition in which the value of the accumulation of sulfur compounds is equal to or above a predefined magnitude accumulation (S1) and the temperature of control device with exhaust gases is equal to or above the predefined temperature (S2) is satisfied in operational state, the electronic control unit manages the intake air volume regulator so that the intake air volume controller increases volume of suction air (S5) compared with, when a particular condition is not satisfied in the same operational state (S4).

EFFECT: more accurate determination of the amount of sulfur compound accumulation.

5 cl, 7 dwg

 



 

Same patents:

FIELD: transport.

SUBSTANCE: proposed system for connection of car pipes comprises union 26, sealing adapter 22 of, mainly tubular shape, arranged radially outward from union 26 and seal element 24 covering outer side of said union 26 to seal it relative to adapter 22. Sealing element 24 has intake pocket 30 to receive connection adapter 22 and clamp 28 to retain said element 24 radially inward on connection adapter 22. The latter cab flex radially and comprises at least one spline arranged, mainly, axially. Invention discloses suction air duct of ICE using described sealing system.

EFFECT: simplified assembly.

10 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: invention refers to machine building and is designed for reducing speed of car on long descends. The brake consists of a case and a gate with a lever. The gate and the lever are secured on a shaft. The shaft is installed in bushings in holes of the case. The gate inserted in the hole of the case is secured on the shaft facilitating different area of gate sheet to the left and to the right from shaft axis. Shaft axis is set off relative to lengthwise axis of symmetry of the case. Slots are made in the bushings; the walls of the slots contact sheet of the gate providing rotation of bushings together with the gate.

EFFECT: facilitating stable counter pressure in system of discharge gases exhaust at braking and at any frequency of cam shaft rotation; also elimination of liners extrusion in pipelines connections.

1 dwg

The invention relates to engine and can be used to improve the fuel efficiency of internal combustion engine

FIELD: engines and pumps.

SUBSTANCE: this invention allows control over nitrogen oxides emission. System to this end proceeds from computation of error set by the difference between first measured value received from nitrogen oxide pickup (7) and second value obtained from evaluation of nitrogen oxides. Said pickup (7) can be used in adaptation circuit wherein exhaust gas recycling control system runs with or without feedback. Said system is tuned to make expected nitrogen oxide emissions from exhaust gas recycling controller comply with those measured by said pickups at stationary operating conditions.

EFFECT: higher rate and accuracy of adaptation of nitrogen oxides emissions.

5 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to injection control in engines with fuel spontaneous combustion. The invention essence consists in that the fuel injection pressure is regulated, and also the starting moment of its injection in response to the fuel-air mix combustion feedback. And the injection pressure is increased if the starting moment of injection is late.

EFFECT: decrease of toxicity of the exhaust gases at combustion of fuels with different cetane numbers.

10 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in ICE control and fuel feed systems. Proposed are system and methods of ICE adjustment on the basis of monitored conditions inside engine combustion chamber (pressure or light emission). In some cases, this system monitors the areas inside combustion chamber to identify or define satisfactory condition to apply ionising voltage to fuel injector so that combustion is initiated during said satisfactory condition. In some cases, this system monitors the conditions in said combustion chamber to define is monitored conditions indicates the need in adjustment of combustion parameter to regulate ionisation level in said combustion chamber.

EFFECT: simplified control, expanded range of used fuels, lower fuel consumption and level of harmful emission.

20 cl, 2 tbl, 9 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICE combustion feedback systems. ICE (10) comprises multicylinder engine (12), load (14) engaged with engine via crankshaft (16), torque magnetic torque (24) arranged between engine (12) and load (14) and control module (26). Said torque magnetic transducer (24) can measure engine (12) torque to generate its output signal (28). Control module (26) is connected with torque magnetic transducer (24) to interact therewith. Control module (26) comprises data collection module (30) to receive torque signal (28) and to generate one or more control signals (32, 34, 36, 38) corresponding to one or more combustion parameters on the basis of torque signal (28). Data collection module (30) incorporates HF filter to generate detonation output signal configured to receive torque signal and to generate detonation output signal corresponding to engine one cylinder. Control module (26) can control one or more engine (12) control parameters on the basis of one or more combustion parameters for control over combustion in every engine (12) cylinder. Invention discloses the system design version.

EFFECT: higher accuracy of control.

16 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method consists in defining the initial moment of combustion in every cylinder 3, comparing it with preset magnitude and varying the moment of fuel injection into cylinders 3 in case defined moment differs from preset magnitude. Note here that exhaust gas temperature of every cylinder is measured to vary duration of fuel injection into cylinders 3 on the basis of exhaust gas temperatures to equalise power produced by said cylinders. Invention covers also the system for diesel engine cylinders balancing.

EFFECT: equalised power produced by different cylinders.

22 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: diesel engine (2) includes piston (3) that is moved in cylinder (4) along sliding surface (5) between lower dead point (UT) and upper dead point (OT). Fuel is supplied to cylinder (4) of diesel engine (2) with a spraying nozzle. At the inlet zone of cylinder (4) there provided are blow-down slots (6) for supply of scavenging air (7). There is outlet valve (8) at cover plate (9) of a head of cylinder (4). When in working state, fresh air (11) is taken by turbosupercharger (12) and supplied through blow-down slots (6) to cylinder (4) as scavenging air (7). At least one first oxygen sensor (131) and one second oxygen sensor (132) are provided at sliding surface (5) of cylinder (4) to evaluate blow-down characteristics in cylinder (4). Method for optimisation of a process blow-down mode of a two-stroke diesel engine is described.

EFFECT: preventing damages to an engine.

15 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention refers to a diagnostics method of the state of a fuel feed system of internal combustion engine (1) with controlled ignition and with fuel spray, which contains electronic control device (6) using oxygen sensor (8) for control in a closed loop of the value of air/fuel ratio in the mixture supplied to combustion chambers of the above engine, according to which a signal supplied with the above oxygen sensor is analysed; at that, a) change of time of effective spray is derived from the above signal and saturation of exhaust gas at the engine outlet is controlled; b) CRITERE = ∫ (CRITERE1+CRITERE2+CRITERE3) is calculated; c) CRITERE is compared to the pre-determined threshold values, minimum SEUIL_MIN and maximum SEUIL_MAX; d) malfunction state is stated when CRITERE is beyond the interval concluded between SEUIL_MIN and SEUIL_MAX.

EFFECT: improving operating efficiency of the internal combustion engine; reducing the quantity of pollutants at the outlet header outlet of the transport vehicle.

7 cl, 11 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method allows limiting power plant first output variable Msoll. Preset magnitude is set for second variable, preferably, rpm or speed. Actual magnitude of said second variable is defined. Preset magnitude is compared to actual magnitude. In case actual magnitude does not exceed preset one, first variable Msoll is limited by first magnitude Mzul. In case actual magnitude exceeds preset one, output variable Msoll is limited by second magnitude smaller than first Mzul. Invention covers also power plant control device.

EFFECT: ruled out emergent engine shutdown on exceeding preset rpm or speed.

10 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: in control device for internal combustion engine the module (10) of output of requirements outputs various requirements of internal combustion engine characteristics, which is expressed in terms of torque moment, efficiency or composition of air-fuel mixture; adjustment module (22) of torque moment gathers from many values of requirements, which are output from module (10) of requirement output, only the requirement values expressed in terms of torque moment, and adjusts values of requirement in torque moment to one; module (24) of adjustment of efficiency gathers the values of requirements, which are expressed in efficiency terms, and adjusts values of the requirement in efficiency to one; module (26) of adjustment of air-fuel mixture gathers values of requirements, which are expressed in terms of composition of air-fuel mixture, and adjusts the values of requirement included in air-fuel mixture to one; calculation module (30) of control variables calculates control variables of actuators (42), (44) and (46) on the basis of value of the requirement in torque moment, value of requirement in efficiency and value of requirement included in air-fuel mixture, which are output from adjustment modules (22), (24) and (26) accordingly.

EFFECT: providing accuracy of introduction of requirements connected to various characteristics of internal combustion engine to operation of actuators, and proper achievement of those requirements.

9 cl, 10 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method uses the value of at least one operating parametre selected to allow required braking moment. This method comprises determining required braking moment developed by the brake-decelerator and difference between required and developed braking moments. If said difference exceeds first tolerable value, brake-decelerator is controlled using the value of at least one second operating parametres. Second operating parametre is selected or adapted, or tuned to produce corrected developed braking torque. Developed braking moment is determined by actual or virtual braking moment transducer 3. First or second operating parametres are stored in memory in tabulated form. Operating parametres may be selected to the group of parametres including ICE exhaust system back pressure, supercharging pressure, pressure ahead or behind the turbine, turbine rpm or its variable geometry and position of vanes. In case difference between required and developed braking moment exceeds second tolerable value that exceeds first preset value, signal on fault is generated. Method of controlling is implemented by ICE brake-decelerator control system. Said control system comprises ICE control unit 12. Torque transducer 3 is mounted on ICE power transfer shaft 1a, 9, 10. ICE control unit 12 controls ICE operation and allows the control over brake-decelerator operation in compliance with selected control method. Said control unit 12 makes a part of transport facility control unit 14.

EFFECT: higher accuracy and reliability, optimum control.

11 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: this invention allows control over nitrogen oxides emission. System to this end proceeds from computation of error set by the difference between first measured value received from nitrogen oxide pickup (7) and second value obtained from evaluation of nitrogen oxides. Said pickup (7) can be used in adaptation circuit wherein exhaust gas recycling control system runs with or without feedback. Said system is tuned to make expected nitrogen oxide emissions from exhaust gas recycling controller comply with those measured by said pickups at stationary operating conditions.

EFFECT: higher rate and accuracy of adaptation of nitrogen oxides emissions.

5 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to control systems of operation of internal combustion engines. The result is achieved by determination of mass flow rate of recirculation (dmEGR) of exhaust gas from difference between full mass flow rate (dmTot) of exhaust gas through engine cylinders and mass flow rate (dmTurb) through a turbine, which is determined as per the turbine model.

EFFECT: measurement and control of recirculation degree of exhaust gas in an internal combustion engine system containing EGR cooler of EGR valve and a turbine.

16 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICEs. Invention discloses control over oxygen pump cell of ICE transducer or in ICE extra exhaust gas purification system. Note here extra control stage is added to current control step with feedback with advance whereat oxygen pump expected current proceeding from parameters of exhaust gas composition computed on the basis of engine operation data.

EFFECT: better quality and precision of oxygen pump cell operation.

7 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to engine building industry and can be used at stationary plants at operation of an engine on different types of fuel, namely on oil. The invention proposes a control method of fuel parameters in a fuel feed system of a multifuel engine, which consists in the fact that the engine start is performed on standard fuel; then, non-standard fuel is supplied to the engine by means of an injection pump (IP) (6); pressure of non-standard fuel is controlled in a make-up engine line by changing IP rotation speed and temperature of non-standard fuel is controlled at the inlet of fuel boost pump (FBP) (10) located at the inlet of the high pressure fuel pump (HPFP) of the engine by heating or cooling of excess non-standard fuel that is fed from HPFP to the inlet of FBP (10) or IP (6).

EFFECT: possibility of controlling fuel parameters by changing its pressure and temperature at engine operation on fuels with a wide range of viscosities; exclusion of a possibility of mixing standard and non-standard fuel when switching-over the make-up line from one type of fuel to another and simplification of a fuel feed system.

4 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in internal combustion engines. Proposed method for ICE (1) consists in that supercharging air is forced, at increased power output, with pre-compression into ICE by two-step supercharge from low-pressure stage (ND) and high-pressure stage (HD). At low power output, supercharge air is forced with pre-compression into ICE (1) by compressor as the third supercharge pressure. Invention disclosed versions of supercharge assembly to this end.

EFFECT: high power output irrespective of geodesic altitude.

10 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in operation of ICEs. Proposed method is based on measurements. These include engine rpm measurements at appearance of derivatives peaks by rpm of autocorrelation function ACF or acceleration power spectrum of accelerations, mean in an acceleration cycle. Shifts in time of mutual autocorrelation function peak (MACF) of said accelerations and run out relative to the peak of run out ACF are measured. Inclination of phase-frequency characteristic of mutual power spectrum of said accelerations is measured. At determination of IAA in separated cylinders, this method proceeds from rpm measurement at appearance of the peaks for rpm derivatives of said mean accelerations. Besides, it proceeds from time shift of acceleration ACF peaks or full load at working stroke of every cylinder relative to TDC. Besides, it proceeds from the peaks of acceleration MACF and run out at working stroke relative to those of ACF and run out and from inclination of phase-frequency characteristic of mutual power spectrum of said accelerations. In the case of ICE with unbalanced harmonic, used is, similarly, the shift of relative unbalanced harmonic of acceleration. Proposed device comprises rpm and first cylinder TDC transducers, differentiators, signal and peak registration units, angular mark count start timing unit, measurement frequency, angular mark cycle and number masters, rpm and acceleration averaging units, level selector, correlation meters, power spectrum meter, two peak meters, two IAA determination gadgets and PFC meters.

EFFECT: simplified process, lower labour input, higher precision.

9 cl, 11 dwg

FIELD: transport.

SUBSTANCE: process for adjustment of first and second fuels feed into engine running on first fuel in first operating mode and on the mix of first and second fuels in second operating mode. Note here that proposed process includes the steps that follow. 1) Calculation of first fuel amount Md required engine operating in said first mode. 2) Calculation of fuel energy Fe proceeding from amount Md to ensure the latter Md. 3) Determination of minimum decreased first fuel amount Fdmin required for operation in second mode. 4) Calculation of second fuel amount Msub which, in decrease in diesel fuel amount Fdmin, should ensure fuel power equivalent to Fe.

EFFECT: higher efficiency.

24 cl, 7 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to control of an internal combustion engine, namely to control methods of supply of a fuel mixture and its components. The set task is solved due to the fact that the optimisation method of operation of an internal combustion engine involves functional relationship between electrical conductivity of the fuel mixture in a gap between electrodes of an ignition plug and combustion efficiency of the fuel mixture.

EFFECT: optimisation of operation of an internal combustion engine, which contributes to prolongation of engine serviceability, more complete combustion of fuel, reduction of fuel consumption and emission of exhaust gases.

1 dwg

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