Controller mode marine diesel engine with pneumatic remote control system

 

(57) Abstract:



 

Same patents:

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: according to proposed method, radius rk of vehicle propulsor, namely, drive wheel or drive sprocket, and vehicle gross weight G, are measured, and using load brake, engine torque Me id changed. Engine torque Me and engine speed n set by means of governor are measured for each value of torque Me, and fuel consumption for each value of engine torque Me is measured and, basing on results of measurements, curve is plotted showing dependence of power Ne from engine torque Me. Drawbar force Pdr of traction vehicle is found from expression Pdr= Metr·i/rk)-Pfmax, where ηtr is transmission efficiency; I is transmission gear ratio; Pfmax is traction vehicle maximum rolling resistance found from expression Pfmax=fmax·G, where fmax is maximum rolling resistance coefficient, and G is gross weight of traction vehicle. Skid coefficient δ of traction vehicle is found and result are transformed into electric signals which are sent to computer to plot curves showing dependence of drawbar force Pdr from engine torque Me for different gears of vehicle and dependence of skid coefficient δ from drawbar force Pdr of traction vehicle after which maximum drawbar force Pdrmax created by propulsors of traction vehicle with gross weight is determined and signals are formed and sent to computer to determine skid coefficient from dependence of skid coefficient δ from vehicle drawbar force Pdr, for each gear of vehicle signals are formed and sent to computer to determine corresponding value of torque Me1 maximum drawbar force Pdrmax dependence of drawbar force Pdr from torque Me, then signal is formed and sent to computer to determine power Ne1 for maximum drawbar force Pdrmax by value of torque Me1 from curve showing dependence of engine power Ne from engine torque Me, value of power Ne1, thus found, is compared with value of power Ne from engine specifications and if they do not coincide, engine speed n and transmission gear ratio I are adjusted.

EFFECT: improved efficiency of use of vehicle engine owing to increased accuracy of measurement of engine power with account of specific operating conditions of vehicle, reduced labor input at measurements and processing of results of measurements.

2 cl, 1 dwg

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention relates to testing and regulating of internal combustion engines. According to proposed method, radius rk of vehicle propulsor is measuring and as well as vehicle gross weight G, and using load brake, engine torque Me is changed. Engine torque Me and engine speed n are measured. Fuel consumption for each value of engine torque Me is measured and basing on results of measurement curve is plotted showing dependence of engine power Ne from engine torque Me, tangential traction force Pt of vehicle propulsor on radius rk is found from expression Pt= Me·ηtr·i/rk, where ηtr is transmission efficiency; I is transmission gear ratio, speed V of vehicle engine is found from expression V=3,377·rk·n/i, maximum tangential traction force Pt max, created by propulsors of vehicle with gross weight G is found from expression Pt maxmax·G, where ϕmax is maximum adhesion coefficient of propulsors with ground. Results are transformed into electric signals, signals are sent to computer and, basing on the signals curves are plotted showing dependence of traction force Pt from engine torque Me and dependences of vehicle speeds V for different gears of vehicle from value of tangential traction force Pt and after determining maximum tangential traction force Pt max for each gear of vehicle, signals are formed and sent to computer to determine corresponding speed Vmax 1 for maximum tangential traction force Pt max from relationship of vehicle speed V and value of tangential traction force Pt and corresponding value of torque Me1 for maximum tangential traction force Pt max from dependence of tangential traction force Pt from torque Me after which signals are formed and sent to computer to determine power Ne for maximum tangential traction force Pt max by value of torque Me1 from curve showing dependence of engine power Ne from engine torque Me. If value of maximum tangential traction force Pt max exceeds value of tangential traction force Pt1 for first gear, signals are formed and sent to computer to determine power Ne1 and torque Men1 from expressions Ne1=Pt max·V1/270·ηtr1 and Men1 Pt max·rk/ ηtr1·i1, where V1 is speed of vehicle in first gear, i1 is transmission gear ratio in first gear; ηtr1 is transmission efficiency in first gear, rk is vehicle propulsor radius. Power values found by calculations and from curve, are compared, and if they do not coincide, speed n of engine and transmission gear ratio I are adjusted.

EFFECT: improved efficiency of use of vehicle internal combustion engine owing to increased accuracy of measurement of engine power with account of specific operating conditions of vehicle, reduced labor input at measurements and processing of results of measurements.

1 dwg

FIELD: motors and pumps.

SUBSTANCE: invention relates to motor engineering industry, and particularly to gas-turbine boost motors. The method of motor lifetime increase and fuel consumption decrease on motor ships with gas-turbine boost motors is specific by the motor operation set at minor revolutions as compared to the operating revolutions. Simultaneously rotation frequency and exhaust gas temperature are decreased, and travel and disc ratio of propeller screw is increased.

EFFECT: increase of motor lifetime and fuel consumption decrease.

2 cl, 4 tbl

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive control instrumentation. Proposed control instrument controls the device incorporated with the vehicle to generate setting for vehicle device, control the latter using said setting and settle conflicts between several settings for one device. In the case of conflict, at least one of two settings is expressed in units other than those of another setting. Control instrument converts physical magnitudes of settings to unify units. Prior to converting physical magnitude of setting, the latter is memorised by control instrument. Conflict settled and setting required inverse conversion of physical magnitude, control instrument outputs memorised setting to make a device setting. Said device can made a vehicle traction force source. In setting generation, first and second settings are generated. First setting is base don driver manipulations (S100). Second setting is not based on driver manipulations. When engine makes the vehicle traction force source, first setting "a" is expressed in torque units (S200). Second setting "A" is expressed in traction force units (S400). On converting physical magnitudes, conversion into units of traction forces (S500) is carried out. First setting "a" (S300) is memorised. If first setting is selected after conflict settling (no S600), memorised first setting "a" (S900) is set for the engine.

EFFECT: better vehicle controllability.

3 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: piston engine comprises engine control system and valve timing phase variation system. Intake pipe houses blow valve while cylinder accommodates intake and discharge valves driven by camshaft. Blow receiver is arranged between blow valve and intake valve. In compliance with this invention, blow valve is opened by partial or complete displacement of throttle driven by common armature of several electromagnets in response to engine control system and valve timing variation system instructions, while intake and discharge valves are driven with no part of valve timing system. Note here that intake valve opens before blow valve to communicate combustion chamber with blow receiver but closes after, before or at a time with blow valve after BDC of intake stroke.

EFFECT: improved operating performances.

13 cl, 13 dwg

FIELD: transport.

SUBSTANCE: invention relates to working machines with ICE engaged with stepless transmission. Working machine comprises ICE (1C) and stepless transmission (IVT) engaged therewith. At least, one sensor generates output signal representing ICE load in real time. At least, one data processing electric circuit serves to control transmission power subject to ICE threshold and real loads. In compliance with one version, at least, one data processing electric circuit includes ICE control unit (ECU) connected with ICE (1C), and transmission control UNIT (TCU) engaged with stepwise transmission (IVT). Engine control unit (ECU) feeds output signal to transmission control unit (TCU) that represents load in real time. Transmission control unit controls transmission power output subject to threshold load and real time load. Invention relates to method of operating said working machine.

EFFECT: ruled out ICE engine overload.

17 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention may be used in working machines comprising internal combustion engine with stepless transmission. Working machine comprises ICE with output and stepless transmission engaged with ICE output. Stepless transmission features adjustable power input-to-power output ratio. Torque control input device controlled by operator outputs output signal. Said torque control input device is connected with one electric processing circuit configured to control ICE power output and power input-to-power output ratio depending upon aforesaid output signal of said torque control input device. Invention relates to method of operating said working machine.

EFFECT: stable engagement at low speed.

20 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: method refers to operation of transmission (1) of an automobile with speed change box (62). The automobile has internal combustion engine (2), which includes turbo-supercharger (22) and a supercharging device of supplementary compressed air to suction air path (8) of internal combustion engine (2). The method consists in the fact that time interval, duration, pressure and/or volume of supplementary compressed air subject to supercharging to air path (8) of internal combustion engine (2) is controlled depending on desired power, actual number of revolutions of internal combustion engine (2), value of load of internal combustion engine (2) and movement speed of the automobile. In addition, time interval, duration, pressure and/or volume of supplementary compressed air subject to supercharging to suction air path of the internal combustion engine is controlled depending on operations as per the change of transfer ratio of speed change box (62).

EFFECT: control of the air supply device together with the speed change box.

15 cl, 1 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: control method of an exhaust gas temperature during interruption of fuel feed is intended for engine (10) of transport vehicle (100) actuating transmission (22) of transport vehicle (100). The method consists in alternation of two or more operating modes, at least one of which maintains higher exhaust gas temperature than one or several other operating modes. Engine (10) is disengaged from transmission (22) in one of the operating modes alternated with the operating mode of the engine as a compression brake for creation of a brake moment.

EFFECT: maintaining exhaust gas temperature at the level providing possible operation of an exhaust gas neutralisation system in acceptable temperature range.

5 cl, 5 dwg

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention is designed for determining condition of internal combustion engine. According to proposed method, piston speed and acceleration are determined and indicator diagram of force acting onto piston is plotted, depending on angle of turning of crankshaft journal around its axis of rotation, or heat characteristics of internal combustion engine are taken and, basing on heat calculations, indicator diagram stated above is plotted and then inertia forces of reciprocating masses of piston and crank gear of each cylinder on internal combustion engine are determined depending on acceleration or deceleration of piston. Pressure of fuel combustion products onto piston is measured, and changes of pressure of combustion products onto piston depending on angle of turning of crankshaft journals are determined and, with due account of measured values of pressure, value of forces of reciprocating masses of piston and crank gear of internal combustion engine in direction of cylinder axis are determined and indicator diagram is plotted after which, for each turn of crankshaft, mean summary tangential force (Tm) acting onto crank depending on torque (Mtm) on crankshaft is determined: Tm=Mtm/R where R is radius of crank of crankshaft. Then mean summary forces along axis of piston and crank gear P are determined depending on angle α of crankshaft turning and angle β of deflection of connecting rod from cylinder axis P=Tm/Sin(α+β)/Cosβ. Basing on obtained results, for each half-turn of crankshaft summary value of tangential force on crank of crankshaft, summary value of pressure of combustion products of fuel mixture in cylinder, and summary inertia force of reciprocating masses of piston and crank gear for each cylinder are determined as difference between mean summary forces P for mean summary tangential force Tm and summary pressures of combustion products of fuel mixture depending on angle of crankshaft turning, after which flywheel is installed on engine shaft and rotation of crankshaft at constant angular velocity is provided. Size of flywheel is determined to provide summary antitorque moment to crankshaft rotation equal to summary torque of acceleration of crankshaft under action of summary inertia force calculated as stated above.

EFFECT: increased efficiency of engine and its service life by optimization of operation conditions of internal combustion engine.

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention is designed for checking condition of internal combustion engine. According to proposed method, pressure of fuel combustion products onto piston is measured and changes of said pressure on piston depending on angle of turning of crankshaft journal and with due account of measured pressure values, reciprocating forces of moving masses of piston and engine crank gear in direction along axis of engine cylinder are determined with plotting of indicator diagram after which, for each half-turn of crankshaft, mean summary tangential force acting onto crank depending on crankshaft torque is determined. Basing on obtained results, summary value of tangential force on crankshaft crank for each half-turn of crankshaft is determined, as well as summary value of pressure of fuel mixture combustion products in cylinder and summary inertia forces of reciprocating masses of piston and crank gear for each cylinder is determined as difference between mean summary forces for mean summary tangential force and summary pressure forces of fuel mixture combustion products depending on angle of crankshaft turning are found after which flywheel is mounted on engine shaft and rotation of crankshaft with constant angular velocity is provided. Size of flywheel is chosen to provide summary crankshaft rotation resistance torque equal to summary torque caused by acceleration of crankshaft rotation under action of summary inertia force calculated as stated above. Counterweights are mounted on crankshaft. Centrifugal force on counterweight at its rotation with crankshaft is equal to unbalanced centrifugal forces if inertia of rotation masses at steady state operation of engine, and torque appearing on counterweight at rotation is equal to longitudinal torque of unbalanced forces of separate cylinders if summary resistance torque is equal to mean indicated summary torque of engine.

EFFECT: increased efficiency and service life of engine by increasing stability of operation of internal combustion engine.

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: according to proposed method, value of pressure of fuel combustion products onto piston and changing of said pressure onto piston depending on angle of turning of crankshaft journal around its of rotation with account of measured values of pressure and determined values of inertia forces of reciprocating moving masses of piston and engine crank gear in direction along axis of cylinder of internal combustion engine are measured and indicator diagram is plotted after which, for each half-turn of crankshaft, mean summary tangential force acting onto crank, depending on torque on crankshaft, it determined. Then mean summary forces along axis of piston and crank gear, depending on angle of turning of crankshaft, are found. All journals of crankshaft rotate in one direction at constant angular velocity owing to flywheel fitted on crankshaft. Size of flywheel is chosen to provide summary torque of resistance to rotation of crankshaft equal to summary acceleration torque of crankshaft under action of summary inertia force found as difference between mean summary force for mean tangential force and summary pressure force of fuel mixture combustion products, depending on crankshaft turning angle.

EFFECT: increased efficiency and service life of engine by improving efficiency of operation.

FIELD: transport engineering; internal combustion engines.

SUBSTANCE: according to proposed method of control of internal combustion engine, mainly, transport internal combustion engines, air is fed into combustion chamber by means of throttle device, mainly, throttle valve. Leaned-out fuel-air mixture is delivered into combustion chamber through fuel evaporation control system. First of all, amount of fuel delivered through fuel evaporation control system is determined and depending on amount of fuel in leaned-out fuel-air mixture and total amount of injected fuel, amount of additionally inject fuel by means of valve-type nozzle at first mode at intake stroke and at second mode, at compression stroke, is determined. At second mode, either additional amount of fuel for injecting leaned-out fuel-air mixture is injected into combustion chamber and ignited by spark plug, or if leaned-out fuel-air mixture is capable of igniting from spark of spark plug, no additional fuel is injected into combustion chamber. To implement the method, use is made of internal combustion engine with control unit including control element, mainly, flash memory.

EFFECT: provision of minimum possible consumption of fuel and minimum discharge of noncombusted fuel into ambient medium.

7 cl, 1 dwg

FIELD: mechanical engineering; piston machines.

SUBSTANCE: proposed resonance piston machine with crank-and-connecting rod mechanism has variable inertia moment flywheel, clutch, flyweights and leverage designed for stepless changing moment of inertia of vibratory system, shaft angular velocity sensor, ambient temperature transmitter, barometric pressure transmitter, clutch position sensor of variable inertia moment flywheel, microprocessor control system, unit to set clutch movement law of variable inertia moment flywheel. Microprocessor control system contains unit with mathematical model of operation of resonance piston machine, first comparator unit and second comparator unit. Output signals of shaft angular velocity sensor, ambient temperature transmitter, ambient barometric pressure transmitter, clutch position sensor of variable inertia moment flywheel are applied to inputs of unit with mathematical model of operation of resonance piston machine. Applied to first input of first comparator unit is calculated value of shaft angular velocity of piston machine corresponding to resonance mode of operation at measured values of ambient temperature and barometric pressure. Output signal of shaft angular velocity sensor is applied to second input of first comparator unit. Applied to first input of second comparator unit is calculated value of position of clutch of variable inertia moment flywheel corresponding to resonance mode of operation at measured values of ambient temperature and barometric pressure, and for resonance value of angular velocity of piston machine shaft, and to second input of second comparator unit, output signal of sensor of clutch position of variable inertia moment flywheel. Signals from outputs of first and second comparator units are supplied correspondingly to inputs of first and second actuating-and-regulating devices smoothly changing velocity of piston machine shaft and position of clutch of flywheel with variable moment of inertia to provide minimum irregularity factor of piston machine shaft rotation. When this condition is met, piston machine is set to resonance. Signal from output of microprocessor control system is applied to input of unit setting clutch movement law of flywheel with variable moment of inertia, and output signal from this unit is applied to input of second comparator unit.

EFFECT: provision of automatic maintenance of resonance mode of operation of piston machine.

2 cl, 9 dwg

FIELD: engines and pumps.

SUBSTANCE: design for erection of disc of pulse generator includes the following: key groove (14), key part (16) and fastener (18). Key groove (14) is made in end surface (10) of rotating wall (9). Key part (16) is provided on disc of pulse generator (P). Disc of pulse generator (P) is attached to rotating wall (9) by means of fastener (18). Key part (16) is made of arc-shaped band-like part (16a) and pair of connecting parts (16b). Arc-shaped band-like part (16a) protrudes in the bent shape from end surface of disc of pulse generator (P). Arc-shaped band-like part (16a) is engaged with key groove (14). Connecting parts (16b) provide connection between the disc of pulse generator (P) and opposite ends of arc-shaped band-like part (16a). Longitudinal directions of key groove (14) and arc-shaped band-like part (16a) are located along radius of disc of pulse generator (P).

EFFECT: development of design for erection of disc of pulse generator, at which high positioning accuracy and manufacturability is provided.

13 cl, 17 dwg

FIELD: engines and pumps.

SUBSTANCE: reduction method of content of nitrogen oxides (NOx) in exit gases is intended for internal combustion engine (10) installed on transport vehicle and containing at least one cylinder (11), inlet air supply pipeline (12), outlet pipeline (14) for removal of exit gases to exit gas neutralisation system (40) used to reduce the hazardous emission level of internal combustion engine (10). Engine includes exit gas recirculation system (80) supplying the exit gases from outlet pipeline (14) to inlet pipeline (12) of internal combustion engine (10). After outlet pipeline (14) in flow of exit gases there installed in series is turbine (54) of turbosupercharger (50) and turbine (60) of turbocompound, which are used at least as two energy converters (54, 60) to absorb the energy of exit gases. Control of internal combustion engine (10) operation in high and/or average load mode is performed so that at certain output power it can operate with increased load and reduced rotation frequency of crankshaft in comparison to rotation frequency usually chosen for the above certain output power. Temperature rise of exit gases, which is achieved due to operation of internal combustion engine (10) with reduced rotation frequency of crankshaft, is performed up to the first temperature, which is sufficient for actuation at least of two turbines (54, 60) and setting of certain exit gas temperature after those turbines. Cooling of exit gases having increased temperature on two turbines (54, 60) is performed to the temperature in the desired temperature range contributing to NOx neutralisation in exit gas neutralisation system (40). Variation of rotation frequency of crankshaft of internal combustion engine (10) is performed depending on NOx content in exit gases after they pass through exit gas neutralisation system (40) and/or depending on design capability of exit gas neutralisation system (40) as to NOx neutralisation. Nitrogen oxide content reduction device has been described.

EFFECT: reduction of hazardous emission level and economy of fuel is provided.

14 cl, 3 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: invention may be used in automotive industry. Propose device comprises electric channel (1) including primary transducer (2), signal inverter (3), indicator (4) and power supply (5). Said primary transducer (2) is composed of following mechanism made up of rpm centrifugal regulator (7) lever (6) and inductive displacement sensor (8) built in corrector case (9). It comprises second electric channel (10) including extra primary transducer (11), signal inverter (12) and indicator (13). Said extra primary transducer (11) is composed of following mechanism made up of rpm centrifugal regulator and inductive displacement sensor (15) lever (14) built in fuel feed corrector case screw (16).

EFFECT: simultaneous control of diesel feed rate and load.

1 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

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