Method of engine warm-up improving and automotive vehicle

FIELD: engines.

SUBSTANCE: invention relates to internal combustion engines, particularly, to engine warm-up. Disclosed is method of fluid warm-up supplied by pump (10) to vehicle (1) engine (5), if liquid temperature is low and reduces engine (5) operating efficiency. Method includes increasing losses for pumping, if necessary to warm-up liquid, if vehicle (1) movement deceleration occurs. To increase losses for pumping in order to produce heat on liquid passing through pump (10), limitation of liquid supply from pump (10) is created using flow control valve (12), or reducing pump efficiency (10), thus changing pump (10) layout or adjustment. In preferred version of invention, liquid pre-heating is performed only in case of vehicle (1) working brakes (50) actuation.

EFFECT: invention provides faster engine coolant heating, fuel saving and reduces emissions.

15 cl, 3 dwg

 



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine at stay after cold starting can change its combustion mode to homogeneous combustion mode or that based on fuel charge layer-by-layer distribution. Working range of combustion based on layer-by-layer fuel charge distribution at vehicle stay after cold starting is expanded relative to that of homogeneous combustion at stay after cold starting as vehicle inclination angle decreases.

EFFECT: expanded working range, negative pressure of sucked air for required brake characteristic, decreased HC content at stay after cold starting.

7 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive industry. Proposed method of diesel (1) control consists in generating automatic oscillation of fuel feed device (7). On a sensor (6) signal at load decrease to magnitude smaller than 30% of rated value the fuel feed device position pickup (7) is used to feed signal from speed automatic controller (10) of control unit (13) and frequency generator via current sinusoidal oscillations of amplitude and frequency oscillator (12). Said oscillator (12) is timed by crankshaft turn angle transducer (5) with its angular position. Invention covers also the diesel control at low feed and minimum stable rpm.

EFFECT: lower minimum stable rpm at load and idling.

2 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: prior to switching on ignition gaseous fuel is injected. Then, also before switching on ignition, auxiliary fuel is additionally injected.

EFFECT: fuel savings, decreased harmful emissions.

9 cl

FIELD: engines and pumps.

SUBSTANCE: method of starting the ICE running on fuel contained in the tank comprises estimation of fuel amount, fuel volatility (PVR), fuel being injected into engine cylinder at starting subject to estimated fuel volatility (16). Estimated fuel volatility (15) is replaced by preset magnitude (20) at starting after replenishment.

EFFECT: easier starting at frost.

14 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed invention can be used for generation of four-stroke ICE sync signal NOCYL for ICE with uneven number of cylinders C1, C1, C3 with the help of electronic control system 7. Said NOCYL signal allows identification of preset moment at engine cylinder thermodynamic cycle. Sync signal is determined proceeding from TDC signal that identifies the position of every cylinder and signal Cg, Bn indentifying kinematics of crankshaft at fuel every ignition. Note here that both signals are generated on the basis of crankshaft position transducer 22. Proposed method comprises the steps whereat engine is operated for preset time interval with fuel ignition at engine every revolution, characteristic signal Cg, Bn is calculated with check magnitude at first second revolutions, sync signal NOCYL is re-initiated if sync signal is misphased.

EFFECT: decreased emission of contaminants.

4 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method consists in utilisation of lubing oil heat and cooling water for heating, oil circulation, executing all preparatory jobs for starting and running standby diesel generator and starting diesel generator. Method covers automated and synchronous control over fuel and supercharge air feed at various operating conditions by means of three-pulse combination electronic fuel feed controllers and at various air pressures in the entire range of static loads and sharp variations of load. Regulation of lubing oil and cooling water temperatures is adapted to actual conditions, loads are distributed among diesel generators operated in parallel subject to control criterion and actual mean load thereto. Invention covers also forced synchronous outage of supercharging turbo compressor and diesel generator at normal and emergent conditions.

EFFECT: power savings, higher efficiency and reliability of starting and efficiency of diesel generator.

8 cl, 6 dwg, 1 tbl

FIELD: engines and pumps.

SUBSTANCE: this method in combination with cold start and/or warming-up at an idle operation of internal combustion engine (1) is used to start engine (1) by means of a cold start mode with preset values of engine operating parameters; quantity of accumulated one or several hydrocarbons in at least one component of exit gas neutralisation is estimated and the cold start mode of a motor is activated, if according to estimation quantity of peaks of HC-desorption stipulated by combustion gases of filler exceeds preset limit value.

EFFECT: method provides possibility of heating of components of exit gas neutralisation and allows defining exact time of engine warming-up with possibility to stop an active mode of the motor cold start, thus allowing to avoid fuel overflow or at least to restrict it.

20 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method comprises the following jobs: (a) feeding first amount of fuel in combustion chamber in compression stroke by pre-injection to produce partially homogeneous premix in combustion chamber, (b) feeding main amount of fuel in combustion chamber by main injection and combustion of fuel-air mix by self-ignition. Beginning of pre-injection is selected to allow premix to ignite after short delay of ignition while beginning of the main injection is selected to allow main amount of fuel to be injected during combustion or directly after combustion of said premix. Pre-injection is executed at crankshaft turn through 22 to 100, in particular 25 to 30, before piston TDC. Main injection is executed at crankshaft turn through 20 before piston TDC to 20 after TDC. Main injection is divided into some partial injections. In starting ICE, first partial injection is executed at crankshaft turn through 2 before TDC to 2 after TDC, while second partial injection is executed at crankshaft turn through 2 to 5 after TDC.

EFFECT: fast starting, higher reliability.

10 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed system comprises storage battery, device to disconnected the latter from onboard circuit, electric starter, starting contactor terminals, capacitive power accumulator made up of capacitors interconnected in series or in parallel. Charge circuit of said power accumulator comprises current-limiting resistor and diode to shunt said resistor. System includes also additional contactor with closing contacts to connect storage battery with said capacitive power accumulator prior to starting locomotive diesel engine, contactor with closing contacts, transducers of accumulator charge current and voltage, controlled rectifier of accumulator charge, unit to generate and indicate charge voltage, and pulse-phase control unit. Said accumulator is connected to controlled rectifier output via contactor with closing contacts. Rectifier power input is connected to charge generator output. Voltage transducer is connected parallel with power accumulator. Outputs of current and voltage transducers are connected with voltage generation unit input and indication unit input. Output of voltage generation unit is connected to pulse-phase control unit with its output connected to control input of controlled rectifier. Capacitive power accumulator is charged automatically without interference of engine crew after starting of locomotive diesel. Charge indication unit allows visual control over charge current and voltage.

EFFECT: higher reliability and longer life, automated charging.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed electric starter comprises storage battery (1), starter (2), traction relay comprising winding (3) and make contact (4), starting switch (5), capacitive storages (6), (7) and (8), short-term make button (9), threshold elements (10), (11) and (12), decoder (13) and interrupter disks (14), (15), (16), (17), (18), (19) and (20) with control electrodes.

EFFECT: starter higher starting current.

1 dwg

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: military hardware.

SUBSTANCE: military tracked vehicle propulsion unit heating system contains a heater, coils of oil tanks, heated engine cavities, heated jackets of oil-priming pumps, pipelines. The heating system also contains a command control and generation unit, a control panel, a diesel fuel heating coil in a fuel consumed tank, an additional fuel tank, fuel temperature sensors in additional and fuel consumed tanks, a fuel heater in the additional fuel tank and in the fuel pipeline, fuel valves. The command control and generation unit is connected to the control panel, fuel temperature sensors, diesel fuel heaters and fuel valves.

EFFECT: start-up and steady operation of the propulsion unit is achieved at negative ambient air temperatures due to coil installation in the fuel consumed tank.

1 dwg

FIELD: military hardware.

SUBSTANCE: system of heating of the propulsion unit in addition contains a command control and generation unit, a control panel, a coil of heating of diesel fuel in an fuel consumed tank, an additional fuel tank, fuel temperature sensors in additional and fuel consumed tanks, a fuel heater in an additional fuel tank and in the fuel pipeline, fuel valves, oil heating coils in onboard transmissions and an inlet reducer, an oil level indicator in an oil tank of hydraulic control and transmission lubrication system, an oil temperature sensor in an oil tank of hydraulic control and transmission lubrication system, a valve. The command control and generation unit is connected to the control panel, fuel temperature sensors, fuel heaters, fuel valves, the index of level of oil, the oil temperature sensor, the crane and a heater of system of heating of the propulsion unit.

EFFECT: start-up and steady operation of the military tracked vehicle is achieved at negative ambient air temperatures due to coil installation in the fuel consumed tank and onboard transmission.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICEs. Control over engine operation consists in starting and shutdown of ICE including crankshaft with journal and thrust bearing to shaft journal to run therein. In case fuel is not fed into ICE crankshaft runs continuously. For lubing of crankshaft journal and thrust bearing when no fuel is fed into engine, oil pump is actuated for hydrodynamic lubing. This application discloses also the engine.

EFFECT: hydrodynamic lubing of shaft journal and thrust bearing.

19 cl, 2 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: weapons and ammunition.

SUBSTANCE: device for automatic preparation of a power plant of a military track vehicle for start-up includes a heater including a boiler, an outlet manifold, a supercharger, an electric motor, a water pump, a fuel pump, an injector, a fuel valve, an ignition plug and a heating plug. A control unit with a remote control panel, which is connected to the ignition plug, the heating plug, the fuel valve, the electric motor and a temperature sensor, is installed into a warm-up system. A flame temperature sensor and an outlet manifold cover drive are installed into the heater boiler, and a heating limiter is installed into the heat exchanger.

EFFECT: improving combat readiness.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to machine building and can be used in ICE start heating systems. Proposed device comprises oil pump with drive, oil lines and oil sump. Note here that is incorporates additional components that follow: gas cylinder with pressure control valve, hot gas feed hose, oil line check valves, pipe with control shutter, oil heating tank with heat-isolation jacket and hot gas coil. Oil indicator, safety and pressure control valves and thermometer are arranged at said jacket communicated with nozzle and branch pipe via hot gas coil. Said branch pipe has control shutter and is communicated with the hose feeding hot gases to oil sump and with impeller with cam shaft. Said cam shaft drives the oil pump communicated via oil pipes with check valves to oil sump and oil heating tank. The latter is communicated via oil pressure control valve, oil line with check valve with ICE lubrication system. Proposed device incorporates oil piston pump with manual priming.

EFFECT: reliable start at low ambient temperatures.

2 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed device consists of heater, pump assy, heater fuel valve and combustion chamber. In compliance with this invention, phase transition heat accumulator with self-controlled electric heater is installed for heating to required temperature, keeping heated oil for engine part lubing in starting at negative ambient and engine temperatures at combat vehicle stand.

EFFECT: preparation of engine starting at low ambient and vehicle temperature and shutdown engine.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed method consists in utilisation of lubing oil heat and cooling water for heating, oil circulation, executing all preparatory jobs for starting and running standby diesel generator and starting diesel generator. Method covers automated and synchronous control over fuel and supercharge air feed at various operating conditions by means of three-pulse combination electronic fuel feed controllers and at various air pressures in the entire range of static loads and sharp variations of load. Regulation of lubing oil and cooling water temperatures is adapted to actual conditions, loads are distributed among diesel generators operated in parallel subject to control criterion and actual mean load thereto. Invention covers also forced synchronous outage of supercharging turbo compressor and diesel generator at normal and emergent conditions.

EFFECT: power savings, higher efficiency and reliability of starting and efficiency of diesel generator.

8 cl, 6 dwg, 1 tbl

Prestart oil heater // 2446318

FIELD: machine building.

SUBSTANCE: proposed device comprises heating unit arranged in oil tank, oil pump with its inlet branch pipe connected via intake pipeline with oil tank, discharge pipeline with its outlet located above oil level in oil tank. Aforesaid heating unit is arranged in tight casing with its inner chamber communicated wit delivery pipeline connected with both oil pump discharge branch pipe and discharge pipeline.

EFFECT: higher efficiency, reduced labor input in maintenance and repair.

5 cl, 1 dwg

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention relates to devices facilitating starting of internal combustion engines. Proposed device for preheating of engine oil contains housing, spring-loaded piston arranged in housing, heater with heating elements, contacts, heat and electric insulation cover and electromagnetic valve connected to device control system. Heater is made in form of cover closing space of housing with piston and springs, being arranged in lower part of device. Electromagnetic valve is secured on heater branch pipe. Device is connected to engine lubrication system at place of mounting of oil pressure transmitter.

EFFECT: provision of effective and convenient in operation engine oil heater.

3 cl, 2 dwg

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