Method for blowing condensate from boost air cooler

FIELD: engines and pumps.

SUBSTANCE: methods of controlling the engine are explained. The essence of the invention is that depending on the increased level of condensation accumulated in the charge air cooler, the air flow through the engine is increased to a level that allows the condensate to be removed, the actuator, which keeps the engine torque at the required level, is regulated. Problems associated with the combustion stability in the engine cylinders are addressed by adjusting fuel supply to each individual cylinder at the time of condensate entry.

EFFECT: increase the reliability of the engine by eliminating misfiring due to the entry of condensate from the charge air cooler into the cylinders.

20 cl, 10 dwg

 



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: invention may be used in supercharge diesels. Proposed method is intended for diesel (1) including pipe (2) to feed air into diesel (1), diesel exit gas exhaust pipe (3), diesel soot filter (31) arranged in exhaust pipe (3) and exit gas circulation system (50, 60) to return exhaust gas into diesel (1). Exhaust gas circulation system comprises off-gas circulation line (60) to receive exhaust gas from exhaust pipe (3) downstream of soot filter (31). Method of diesel control consists in setting the threshold (Sth) for amount of soot getting into off gas circulation system. Besides, actual amount (Saa) of said sooth is defined. Now, the procedure of off-gas circulation line protection is actuated if actual amount (Saa) is higher than said threshold (Sth). Besides it discloses the device to this end.

EFFECT: reduced sooting.

12 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises compression ratio control mechanism (A) designed to vary compression ratio. Besides, it comprises valve timing control mechanism (B) designed to vary intake valve closing moment wherein preset is the inhibited zone for combination of mechanical compression and intake valve (7) closing moment to inhibit getting of working point in inhibited zone. Said working point represents a combination of mechanical compression degree and intake valve (7) closing moment. Said of mechanical compression degree and intake valve (7) closing moment can vary from current working point in direction towards required one on the side of lower mechanical compression degree without getting in inhibited zone when compression mechanism fails.

EFFECT: required combustion at lower compression ratio at failure of compression control mechanism.

11 cl, 57 dwg

FIELD: transport.

SUBSTANCE: invention relates to transport and can be used in processes of fuel combustion in internal combustion engines (ICE). In the method, both charge stratification and homogeneous air-fuel mixing is provided by means of changing at least one injection parameter. The method consists in adjustment of fuel injection depth by means of changing injection pressure. Injection depth is adjusted within total depth of combustion chamber, and injection pressure is changed either smoothly or in steps, in particular using mode selector. Mode selector provides at least two fixed charge stratification modes with possibility of their selection or switching between them. Herewith, within used modes the injection duration parameter can be set in proportional dependence or in one of types of nonlinear dependence on injection pressure: differential, integral, logarithmic or any other nonlinear dependence.

EFFECT: wider range of fuel depletion degrees which improves efficiency and cleanliness of exhaust ICEs.

8 cl, 1 dwg

FIELD: automotive industry.

SUBSTANCE: in the method, the device, the medium, and the vehicle of correction of combustion parameter the value of the parameter Pi is set (104) by interpolation between two pre-determined values Piref1 and Piref2 depending on the CO value of the engine mode and on the temperature of the engine coolant, and the values Piref1 and Piref2 are optimal for reducing polluting emissions when the control fuel is fed to the engine respectively to high volatility and low volatility.

EFFECT: limitation of polluting emissions during the blowdown of the vehicle engine.

8 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed device comprises section 2 to control conditions of heat source 1 mounted at vehicle, section 5 to calculate required heat, section 4 to estimate fuel feed and section 6 to increase heat emission. Section 5 to calculate required heat calculates expected amount of heat required for heat consuming device 3 that uses heat emitted by source 1. Section 4 to estimate fuel feed estimates expected fuel feed from source 1 to heat consuming device 3 Section 6 to increase heat emission requests section 2 to increase emission of heat from source 1 when amount of heat estimated by section 4 is lower than that calculated by section 5. Invention covers the design version of said control device.

EFFECT: reduced loss of heat.

26 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed ICE system comprises: high-pressure hydrogen source 1, pressure regulator 2, pressure regulator control unit 3, electromagnetic valve 4 with control unit 5, spark plug 6, ignition system 7, trigger pulse generator 9, trigger pulse delay element 8, load pickup 10, crankshaft rpm pickup 11, combustion chamber gas pressure pickup 14 and hydrogen pressure pickup 13. Pressure regulator control unit 3 electromagnetic valve control unit 5 are connected with gas pressure pickup 14 and hydrogen pressure pickup 13. Pressure regulator control unit is connected to ignition system 3.

EFFECT: reduced hydrogen consumption.

3 dwg

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine (ICE) includes variable compression degree mechanism and gas distribution phase control mechanism. Variable compression degree mechanism has the possibility of changing mechanical compression degree. Gas distribution phase control mechanism has the possibility of controlling the inlet valve closing moment. During ICE operation at low load the mechanical compression degree is higher than that during operation at high load. At load increase the mechanical compression degree decreases gradually. At ICE operation the first and the second air-fuel ratios are performed randomly; at that, the second ratio is bigger than the first one. At ICE operation at high load the first air-fuel ratio is performed. At ICE operation at low load, when mechanical compression degree is lower than the pre-defined reference value, combustion is carried out with the first air-fuel ratio, and when mechanical compression degree is higher than reference value, combustion is carried out with the second ratio.

EFFECT: improving combustion process arrangement allowing to obtain high thermal efficiency.

5 cl, 17 dwg

FIELD: engines and pumps.

SUBSTANCE: ignition control device of general-purpose internal combustion engine (10) supplying the ignition signal in compression stroke and exhaust stroke of four-stroke cycle cuts out (S10, 8108) one of ignitions which shall be performed as per two output ignition signals, and measures engine speed after ignition cutout after the ignition is cut out (S10, S110). For each of two ignition signals it is determined whether it was given out in compression stroke or in exhaust stroke, on the basis of difference of average engine speed and engine speed after ignition cutout (S10, S112-S120). Ignition is controlled as per ignition signal determined as that of two ignition signals, which was output in compression stroke (S12).

EFFECT: longer service life of ignition plug of engine and simpler design.

8 cl, 5 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: internal combustion engine (ICE) control device consists in controlling variable calculation device and drive control device. Controlling variable calculation device calculates many controlling variables that help to control energy generated by ICE. Drive control device influences controls of many executive mechanisms on the base of many controlling variables. Controlling variable calculation device includes required value calculation device that refers to ICE (61) energy, ICE (62) emission, heat losses at ICE (63) cooling and required values summing device (64). Required values summing device summarises every required value to define required summed value. Controlling variables also can be intake air quantity and ignition timing. Controlling variable calculation device can additionally include calculation means of supplied fuel quantity, intake air quantity, ignition timing (67), exhaust gas energy estimation (70) devices, second ignition timing device (68) and corrective device (69).

EFFECT: creation of ICE control device that allows realisation of many functions.

6 cl, 11 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

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: invention can be used at designing control system for ICE 2 running on several types of fuel. Identification of knocks at changing the type of fuel consists in registration of characteristic of signal (ikr) describing the ICE housing noise and definition of base level of background noise (rkr) by filtration in low-pass filter (LPF) LPF filtration factor (TPF) is varied during transition from one fuel to the other. Note here that magnitude of said factor is set to lower value that moment. Occurrence of knocks is defined proceeding from threshold value (SW) to be coordinated at changing of fuel type. Proposed device comprises housing noise registration unit 5 to record the characteristic of signal (ikr) and knocks identification unit 4 to register aforesaid signal and to determine its base level (rkr). Adjustment is performed by changing the throttle position, amount of fed fuel or ignition dwell angle.

EFFECT: lower probability of false operation of control system.

7 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in internal combustion engines. This method comprises step whereat injection control device is used to evaluate if preset terms of fuel changeover logics are satisfied in engine running on several fuels. This is done to change fuel to drive by said fuel 1 to drive by said fuel 2.It includes the step whereat said logics is used to force the amount of fuel to engine cylinder 1 in every cycle in compliance with programmed pattern. This allows the fuel amount to be increased for involved atomiser. Note here that fuel amount injected by atomiser not involved in changeover. Note also that fuel amount is forced in other cylinders with sequential reiteration of said pattern. It comprises the step whereat patter portion is executed wherein total amount of fuel fed to said cylinder 1 is injected by atomiser involved in changeover. Fuel changeover is terminated when said patter portion is sequentially executed one time in all other cylinders. Invention discloses also the injection control device.

EFFECT: higher efficiency of engine operation.

6 cl, 5 dwg

Up!