CN207377684U - Cold direct-injection petrol engine assembly during supercharging is integrated - Google Patents

Abstract

Cold direct-injection petrol engine assembly in being integrated the utility model discloses a kind of supercharging, including high pressure fuel direct-injection system, high energy efficiency chamber system, high pressure water cooling gas recirculation system, air intake duct and the exhaust duct being mounted in high-pressure casting aluminium alloy cylinder；High pressure fuel direct-injection system direct fuel injection into the high energy efficiency chamber system；The high pressure water cooling gas recirculation system by the air intake duct, by treated, be sent into the high energy efficiency chamber system by exhaust gas；The exhaust gas of the high energy efficiency chamber system, which is entered by the exhaust duct in the high pressure water cooling gas recirculation system, to be handled.The utility model can improving combustion efficiency, oil consumption and pollutant emission can be reduced.Air inlet tumble flow is improved with reference to cold gas recirculation system in high pressure direct injection in cylinder and high pressure, burn rate is improved, improves combustion knock border, can significantly improve engine consumption level.Engine pumping loss can be reduced, improves combustion knock border, reduces pollutant emission.

Description

Cold direct-injection petrol engine assembly during supercharging is integrated

Technical field

Cold direct-injection petrol engine in being integrated the utility model is related to automobile technical field more particularly to a kind of 1.0L superchargings Assembly.

Background technology

It is counted according to Traffic Administration Bureau of the Ministry of Public Security, 2016 year end national vehicle guaranteeding organic quantities are up to 2.9 hundred million, wherein automobile 1.94 hundred million , new registration amount and annual increment are up to all-time high, and with the continuous promotion of living standards of the people, automobile rigid demand is protected Vigorous, the swift and violent growth trend of car ownership holding is held, up to 27,520,000, ownership has a net increase of the automobile of the registration of new registration in 2016 22120000, be all-time high.Passenger car is energy saving very great to mitigating energy and environment pressure meaning.In this background Under, government department has put into effect automobile fuel ecomomy and emission regulation, and the measures such as property tax excitation is taken constantly to promote automobile section It can emission reduction work.Wherein, phase III oil consumption limit value came into effect on July 1st, 2012, and automobile fuel consumption requirement is compared with second Stage declines 20%.Fourth stage (2016~the year two thousand twenty) fuel economy regulation is clear and definite：The year two thousand twenty enterprise average fuel consumption target will Reach 5L/100km.High energy efficiency, low oil consumption are developed, the small displacement engine of low emission is particularly important.

The C15VVT engines that Shanghai GM dominates exploitation at present are a new natural aspirated engines, are employed variable Inlet manifold, intake and exhaust continuous and variable gas distribution phase techniques, variable oil pump lubricating oil pump and low friction technology, while have at a high speed End and the large torque at low speed end, power performance is outstanding, meets Chinese 5th stage emission laws and regulations requirement.

The replacement in view of these vehicles future and meet the needs of six emission regulation of fourth stage fuel economy regulation and state, There is an urgent need for developing a small displacement energy-saving engine, the naturally aspirated engine of 1.6L or following discharge capacities and part to be substituted to be unsatisfactory for The 1.0L engines with supercharger of regulation.The power of the small displacement engine and torque should surmount existing 1.6L natural aspirations and start simultaneously Machine and 1.0L engines with supercharger bring better power output for vehicle upgrading products, and have the ability to expand to SUV, small-sized MPV or transboundary vehicle etc. require higher vehicle application for power performance.Statistics indicate that improve vehicle fuel economy, increase Pressure miniaturization is a kind of higher approach of input and output.

Utility model content

The purpose of this utility model is that provide a kind of dynamic performance superiority, fuel oil consumes and discharges during low supercharging integrates Cold direct-injection petrol engine assembly.

The technical solution of the utility model provides cold direct-injection petrol engine assembly during a kind of supercharging integrates, including being mounted on High pressure fuel direct-injection system, high energy efficiency chamber system, high pressure water cooling exhaust gas recycling system in high-pressure casting aluminium alloy cylinder System, air intake duct and exhaust duct；

High pressure fuel direct-injection system direct fuel injection into the high energy efficiency chamber system；

By the air intake duct, by treated, exhaust gas is sent into the high energy efficiency to the high pressure water cooling gas recirculation system In chamber system；

The exhaust gas of the high energy efficiency chamber system recycles system by the exhaust duct into the high pressure water cooling exhaust gas It is handled in system.

Further, the high-pressure casting aluminium alloy cylinder is integrated with chain-wheel box, and it is cold to be also integrated with oil filter, machine oil But device, mechanical water pump, starting motor, accessory system and compressor.

Further, the engine assembly further includes the two-stage low-tension timing linkwork being installed in the chain-wheel box System；

The two-stage low-tension timing chain system further comprises：It is two-stage stretcher, low friction silencing chain, orbit determination, dynamic Rail, upper rail and crankshaft sprocket；

Wherein described two-stage stretcher is installed on cylinder body front end face, and the two-stage stretcher includes double plunger, described low to rub Wiping silencing chain is silent chain, and the dynamic rail is made of all-plastic material.

Further, the engine assembly further includes cylinder cap, and the cylinder cap is integrated with exhaust manifold, EGR channel, solely Vertical cam axle bush covers, high-pressure oil pump installation FE Tiler, the air intake duct and the exhaust duct, the independent cam axle bush covers are further Including big FE Tiler and small FE Tiler.

Further, the high pressure fuel direct-injection system includes high-pressure oil pump, high-pressure oil pipe, oily rail and direct-injection fuel injector；

The high-pressure oil pump is arranged on the independent cam axle bush covers of the exhaust side rear end of the cylinder cap, the direct-injection Fuel injector is connected as one with the oily rail under the air intake duct for the air inlet side for being installed on the cylinder cap, the direct-injection fuel injector Head stretch in the combustion chamber of the cylinder cap.

Further, the pressure of the high pressure fuel direct-injection system is 35Mpa.

Further, the high pressure water cooling gas recirculation system include exhaust gas air hatch, EGR control valve and Cooler for recycled exhaust gas；

The exhaust gas air hatch is located at the exhaust side back-end location of the cylinder cap, exhaust gas successively by the exhaust gas air hatch into After entering the EGR control valve, cooled down by the cooler for recycled exhaust gas；

The cooler for recycled exhaust gas is designed with the EGR control valve for integral type, and is installed on the cylinder The exhaust side of lid, the oral siphon of the cooler for recycled exhaust gas are connected in series to vehicle warm wind tube outlet, the exhaust gas recycling The return pipe water route of cooler is respectively connected to vehicle kettle and engine water pump oral siphon.

Further, the engine assembly further includes cold gas handling system during engine integrates；

It is recycled by cooler for recycled exhaust gas exhaust gas after cooling via exhaust steam passage, the exhaust gas of the cylinder cap Pipeline enters cold gas handling system during the engine integrates, subsequently into the air intake duct；

The flange that the exhaust gas recirculation circuit connects the position of cold gas handling system during the engine integrates is equipped with Gas temperature sensor controls gas inlet amount to Accurate Calibration.

Further, the engine in integrating cold gas handling system include：Turbocharger, inter cooling pipeline and it is integrated in it is cold Inlet manifold；

Fresh air through it is described it is turbocharger supercharged after, through the inter cooling pipeline be connected to it is described it is integrated in cold air inlet discrimination The electronic air throttle body of the inlet of pipe is entered back into described integrate in cold inlet manifold, by fresh air after cooling It enters in the combustion chamber of the cylinder cap；

Wherein, the inter cooling pipeline and it is described it is integrated in be respectively provided in cold inlet manifold in cold preceding temperature and pressure transmitter The cold rear temperature and pressure transmitter in, to demarcate monitoring charge air cooler working condition and accurately calculate air input of engine by air；

It is described it is integrated in be additionally provided with charge air cooler in cold inlet manifold and enter water and charge air cooler water outlet, the two is connected to vehicle In on cold waterway circulating.

Further, the engine assembly further includes the engine thermal management control system mounted on the cylinder cap tail end System；

It is cold that the engine thermal management control system includes cooling-water temperature sensor, air-conditioner water outlet mouth, radiator outlet, machine oil But device water outlet and regulation ball valve；

The regulation ball valve carrys out controlling opening of valve and controls the sky respectively according to the feedback signal of the cooling-water temperature sensor Recall the flow at the mouth of a river, the radiator outlet and the oil cooler water outlet.

Further, the engine assembly further includes controllable piston machine oil cooling injection system；

The controllable piston machine oil cooling injection system includes machine oil cooling nozzles, machine oil cooling nozzles control valve and cylinder body Oil duct；

The machine oil cooling nozzles are installed on the downstream position of the cylinder-body oil duct of cylinder barrel lower end, machine oil cooling nozzles Control valve is installed on the upstream position of the cylinder-body oil duct of the exhaust side of engine, the unlatching of the machine oil cooling nozzles control valve It is opened and closed with the controllable machine oil cooling nozzles are closed.

Further, the engine assembly further includes middle intake and exhaust continuous variable valve timing system；

The middle intake and exhaust continuous variable valve timing system includes phaser control solenoid valve, central bolt control Valve, camshaft phase adjuster, air inlet side phaser and exhaust side phaser；

Phaser control solenoid valve, described is mounted on the air inlet side phaser and the exhaust side phaser Central bolt control valve and the camshaft phase adjuster.

Further, the engine assembly further includes rolling bearing type low friction camshaft；

The rolling bearing type low friction camshaft includes camshaft and ball bearing, ball axis on the camshaft Hold baffle ring, high-pressure oil pump driven cam and camshaft-position signal disk；

The outer ring interference of the ball bearing is pressed into the independent cam axle bush covers of one grade of the cylinder cap, then by institute The inner ring that camshaft interference is pressed into the ball bearing is stated, the ball bearing baffle ring is mounted on the described only of one grade of the cylinder cap In the card slot of vertical cam axle bush covers, skidded off to ensure that the ball bearing will not loosen.

Further, the engine assembly further includes displacement-variable oil pump；

The displacement-variable oil pump is arranged on oil sump, and by machine oil pump sprocket, lubricating oil pump chain and bent axle chain Wheel drive, the displacement-variable oil pump are instructed by engine control module and carry out oil pressure switching.

Further, the cylinder cap is equipped with cross-flow type cooling jacket, the current in the cross-flow type cooling jacket from into Flow out exhaust side in gas side.

Further, the engine assembly further includes evaporative emission control system；

The evaporative emission control system further comprises canister control valve, canister scavenger and its connecting line；

Wherein described canister scavenger is located at motor head air inlet side upper end position, and the canister control valve is installed on row Chain at the turbocharger inlet of gas side is taken over, and the canister scavenger is connected to the canister control valve by the connecting line On.

Further, the engine assembly further includes crankcase ventilation system；

The crankcase ventilation system further comprises：Forced ventilation pipeline, pressure sensor, gs-oil separator and cam Shaft-cup cover；

Wherein described forced ventilation pipeline is located at engine head back-end location, the threeway that the forced ventilation pipeline uses Design connects vehicle gas handling system resonator port, the fresh air inlet of crankcase and the outlet of gs-oil separator, institute respectively It states pressure sensor and is installed on the forced ventilation pipeline and the link position of the outlet of the gs-oil separator.

After adopting the above technical scheme, it has the advantages that：

The utility model mesohigh fuel direct injection system：Can improving combustion efficiency, oil consumption and pollutant emission can be reduced.It is high Efficiency chamber system：Air inlet tumble flow is improved with reference to cold gas recirculation system in high pressure direct injection in cylinder and high pressure, is improved Burn rate improves combustion knock border, can significantly improve engine consumption level.Cold exhaust gas recycling system in high pressure System：Engine pumping loss can be reduced, improves combustion knock border, reduces pollutant emission.

Description of the drawings

Referring to attached drawing, the disclosure of the utility model will be easier to understand.It should be understood that：These attached drawings are used only for The purpose of explanation, and be not intended to and the scope of protection of the utility model is construed as limiting.In figure：

Fig. 1 is the front view of engine assembly in one embodiment of the utility model；

Fig. 2 is the fundamental diagram of engine combustion system in one embodiment of the utility model；

Fig. 3 is the structure diagram of high energy efficiency chamber system in one embodiment of the utility model；

Fig. 4 is the structure diagram of one embodiment mesohigh cast aluminium alloy gold cylinder body of the utility model；

Fig. 5-1 is the structure diagram of two-stage low-tension timing chain system in one embodiment of the utility model；

Fig. 5-2 is the partial enlarged view of Fig. 5-1；

Fig. 6-1 is the structure diagram of cylinder cap in one embodiment of the utility model；

Fig. 6-2 is the structure diagram of cross-flow type cooling jacket in one embodiment of the utility model；

Fig. 7-1 is the structure diagram of one embodiment mesohigh fuel direct injection system of the utility model；

Fig. 7-2 is the partial sectional view of Fig. 7-1；

Fig. 8-1 is the front view of one embodiment mesohigh water cooling gas recirculation system of the utility model；

Fig. 8-2 is the structure diagram of one embodiment mesohigh water cooling gas recirculation system of the utility model；

Fig. 9 is the structure diagram of cold gas handling system during engine integrates in one embodiment of the utility model；

Figure 10 is the structure diagram of engine thermal management control system in one embodiment of the utility model；

Figure 11-1 is the structure diagram of controllable piston machine oil cooling injection system in one embodiment of the utility model；

Figure 11-2 is the partial exploded view of Figure 11-1；

Figure 12 is the structural representation of middle intake and exhaust continuous variable valve timing system in one embodiment of the utility model Figure；

Figure 13-1 is the structure diagram of rolling bearing type low friction camshaft in one embodiment of the utility model；

Figure 13-2 is that rolling bearing type low friction camshaft is pacified with independent cam axle bush covers in one embodiment of the utility model Partial sectional view after dress；

Figure 14 is the structure diagram after displacement-variable oil pump installation in one embodiment of the utility model；

Figure 15 is the structure diagram of one embodiment intermediate fuel oil evaporative emission control system of the utility model；

Figure 16 is the structure diagram of crankcase ventilation system in one embodiment of the utility model；

Figure 17 is the structure diagram of roller rocker arms hydraulic tappet valve train in one embodiment of the utility model.

Specific embodiment

Further illustrate specific embodiment of the present utility model below in conjunction with the accompanying drawings.

It is readily appreciated that, technical solution according to the present utility model, in the case where not changing the utility model in essence spirit, this field The various structures mode that can mutually replace of those skilled in the art and realization method.Therefore, detailed description below and Attached drawing is only the exemplary illustration to the technical solution of the utility model, and is not to be construed as the whole of the utility model or is considered as Utility model technical solution is defined or limited.

It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc. Orientation term is defined compared with each attached construction shown in figure, they are opposite concepts, and it is therefore possible to can root Correspondingly changed according to its residing different position, different use states.It so also should not be by these or others side Position term is construed to restricted term.

Engine assembly：

As shown in Figs. 1-3, cold direct-injection petrol engine assembly during supercharging is integrated, including being mounted on high-pressure casting aluminium alloy cylinder High pressure fuel direct-injection system, high energy efficiency chamber system 3, high pressure water cooling gas recirculation system, air intake duct and exhaust in body Road；

High pressure fuel direct-injection system direct fuel injection into high energy efficiency chamber system；

High pressure water cooling gas recirculation system by air intake duct, by treated, be sent into high energy efficiency chamber system by exhaust gas；

The exhaust gas of high energy efficiency chamber system, which is entered by exhaust duct in high pressure water cooling gas recirculation system, to be handled.

Specifically, top is engine head in Fig. 1, lower section is engine bottom, left side is the exhaust side of engine, right side For engine charge side.

In the present embodiment, high pressure fuel direct-injection system, high energy efficiency chamber system 3 and high pressure water cooling gas recirculation system Collectively constitute the engine combustion system of engine assembly.

In the utility model embodiment, high pressure fuel direct-injection system：Can improving combustion efficiency, oil consumption and pollutant can be reduced Discharge.High energy efficiency combustion chamber, air flue：Air inlet tumble flow is improved with reference to high pressure direct injection in cylinder and H-EGR, improves burn rate, Combustion knock border is improved, can significantly improve engine consumption level.Cold gas recirculation system (H- in high pressure EGR)：Engine pumping loss can be reduced, improves combustion knock border, reduces pollutant emission.

High-pressure casting aluminium alloy cylinder：

Further, as shown in figure 4, high-pressure casting aluminium alloy cylinder 4 is integrated with chain-wheel box 41, also it is integrated with oil filtration Device, oil cooler, mechanical water pump, starting motor, accessory system and compressor.

Since high-pressure casting aluminium alloy cylinder 4 is integrated with sprocket wheel box structure, size of engine is reduced, while avoids T Type sealing structure.Also it is integrated with oil filter, oil cooler, mechanical water pump, starting motor, accessory system, compressor etc. Series installation feature, it is compact-sized to alleviate engine weight, reach the purpose for reducing complete-vehicle oil consumption.In addition, high-pressure casting Aluminium alloy cylinder significantly reduces main screw lift.

Two-stage low-tension timing chain system：

Further, engine assembly further includes the two-stage low-tension timing chain system being installed in chain-wheel box；

As shown in Fig. 5-1 and 5-2, two-stage low-tension timing chain system 5 further comprises：Two-stage stretcher 51, low friction Silencing chain 52, orbit determination 53, dynamic rail 54, upper rail 55 and crankshaft sprocket 56；

Wherein two-stage stretcher 51 is installed on cylinder body front end face, and two-stage stretcher 51 includes double plunger 511, and low friction is quiet Sound chain 52 is silent chain, and dynamic rail 54 is made of all-plastic material.

The plunger that the two-stage low-tension timing chain system can effectively reduce stretcher under working condition acts on timing linkwork Power on system so as to be effectively reduced the friction loss of catenary system, improves engine complete machine fuel economy.Design of tensioners is Double plunger design can provide low, high two-stage tension to reduce catenary system under two-stage low-tension timing chain system different operating load Friction loss.The chain of the system is low friction silencing chain, which designs for silent chain, can effectively reduce system Operating noise, while the abrasion of chain problem brought needed for direct fuel-injection engine can be taken into account.Dynamic rail uses all-plastic material, reduces and is The quality of system contributes to the light-weight design of engine.

Cylinder cap：

Further, as in Figure 6-1, engine assembly further includes cylinder cap 6, and cylinder cap 6 is integrated with exhaust manifold, and (figure is not Show), EGR channel 61, independent cam axle bush covers 62, high-pressure oil pump installation FE Tiler 63, air intake duct 64 and exhaust duct 65, independent cam Axle bush covers 62 further comprise big FE Tiler 62-1 and small FE Tiler 62-2.In addition, side in-cylinder direct-jet fuel injector 74 (referring to Fig. 7- 1) air intake duct lower end is arranged in, 66 be direct-injection fuel injector installation end.

The compact designs such as integrated exhaust manifold, integrated EGR channel reduce accessory size and weight, independent large and small watt Lid, high-pressure oil pump installation FE Tiler reduce the technology difficulty of cylinder cap manufacture, and brand-new air flue, Combustion chamber design improve burning effect It is horizontal that rate reduces oil consumption.

Further, such as Fig. 6-2, cylinder cap 6 is equipped with cross-flow type cooling jacket 67, the current in cross-flow type cooling jacket 67 From air inlet side outflow exhaust side, the direction of black arrow meaning is water (flow) direction in Fig. 6-2.

The cross-flow type cooling jacket of cylinder cap to possess good coolant flow paths and flowing velocity inside cylinder cap, low The pressure loss, reduce head exhaust side ridge area temperature and improving pinking border.

High pressure fuel direct-injection system：

Further, as shown in Fig. 7-1, high pressure fuel direct-injection system 7 includes high-pressure oil pump 71, high-pressure oil pipe 72, oily rail 73 and direct-injection fuel injector 74；

As shown in Fig. 7-2, high-pressure oil pump 71 is arranged on the independent cam axle bush covers 62 of the exhaust side rear end of cylinder cap 6, directly Injection injector 74 is connected as one with oily rail 73 under the air intake duct 64 for the air inlet side for being installed on cylinder cap 6, the head of direct-injection fuel injector 74 Portion is stretched in the combustion chamber 68 of cylinder cap 6.

The system can reduce mixture temperature, inhibit pinking, improve compression ratio, optimization ignition advance angle, reduce gaseous mixture Enriching is so as to effectively reducing engine consumption.Direct injection technology can realize that quick oil-break reduces oil consumption, and engine is recovering to transport The foundation of oil film is not required when turning.Direct-injection can improve EGR amount, reduce the pumping loss under underload, improve engine Oil consumption.Direct-injection and the combination of engine start and stop technology, which can reduce, starts oil consumption and promotion fast-start performance.Direct-injection skill simultaneously Art can realize that multi-injection and the angle of ignition are postponed, and accelerate catalyst converter ignition, reduce HC, CO, DS NOx Est, direct-injection atomization is more preferable, subtracts Few enriching improves to start and be discharged with the HC of warming-up.

Further, the pressure of high pressure fuel direct-injection system is 35Mpa.Larger pressure makes oil spout thinner, is conducive to fill Divided combustion makes the particle generated after burning smaller.

High pressure water cooling gas recirculation system：

Further, as shown in Fig. 8-1 and 8-2, high pressure water cooling gas recirculation system 8 includes exhaust gas air hatch 81, gives up Gas recirculation control valve 82 and cooler for recycled exhaust gas 83；

Exhaust gas air hatch 81 is located at the exhaust side back-end location of cylinder cap 6, and exhaust gas enters exhaust gas by exhaust gas air hatch 81 successively After recirculation control valve 82, cooled down by cooler for recycled exhaust gas 83；

Cooler for recycled exhaust gas 83 is designed with EGR control valve 82 for integral type, and is installed on the row of cylinder cap 6 Gas side, the oral siphon 831 of cooler for recycled exhaust gas 83 are connected in series to vehicle warm wind tube outlet, cooler for recycled exhaust gas 83 832 water route of return pipe is respectively connected to vehicle kettle and engine water pump oral siphon.

The system is by controlling the aperture of EGR control valve that the exhausted air quantity into cylinder is controlled to reach reduction pump gas Loss improves burning so as to reduce the purpose of engine consumption and discharge.

Engine cold gas handling system in integrating：

Further, engine assembly further includes cold gas handling system during engine integrates；

As shown in figure 9, by 8 exhaust gas after cooling of cooler for recycled exhaust gas via the exhaust steam passage of cylinder cap 6, exhaust gas again Circulation line 84 enters cold gas handling system 9 during engine integrates (referring to Fig. 8-1), subsequently into air intake duct 64；

The flange that exhaust gas recirculation circuit 84 connects the position of cold gas handling system 9 during engine integrates is equipped with gas temperature Sensor 85 (referring to Fig. 8-1) is spent, gas inlet amount is controlled to Accurate Calibration.

Further, cold gas handling system 9 includes during engine integrates：Turbocharger 91, inter cooling pipeline 92 and it is integrated in Cold inlet manifold 93；

Fresh air after the supercharging of turbocharger 91, through inter cooling pipeline 92 be connected to it is integrated in cold inlet manifold 93 enter The electronic air throttle body 94 at mouthful place is entered back into integrating in cold inlet manifold 93, entered by fresh air after cooling In the combustion chamber 68 of cylinder cap 6；

Wherein, inter cooling pipeline 92 and it is integrated in be respectively provided in cold inlet manifold 93 in cold preceding 95 He of temperature and pressure transmitter In it is cold after temperature and pressure transmitter 96, to demarcate monitoring charge air cooler working condition and accurately calculate air input of engine by air；

Charge air cooler is additionally provided in integrated in cold inlet manifold 93 and enters water 931 and charge air cooler water outlet 932, the two connection Into vehicle on cold waterway circulating.

The engine of the utility model employ it is integrated in cold gas handling system, integrate ICS intercooler system compared with traditional air-cooled ICS intercooler system energy integrated level higher, therefore engine can be greatly optimized in the arrangement space of vehicle front deck and reduce complete vehicle quality drop Low engine consumption is horizontal.Integrated ICS intercooler system can effectively reduce the intake air temperature of inlet manifold so as to promote engine simultaneously Performance and oil consumption it is horizontal.This engine use it is integrated in inter cooling pipeline route of the cold design to inlet manifold after pressure it is short, The dynamic torque response of engine can be effectively promoted, so as to bring more superior vehicle booster response performance.

Engine thermal management control system：

Further, as shown in Figure 10, engine assembly further includes the engine thermal management control mounted on cylinder cap tail end System 10；

Engine thermal management control system 10 includes cooling-water temperature sensor 101, air-conditioner water outlet mouth 102, radiator outlet 103rd, oil cooler water outlet 104 and regulation ball valve (not shown)；

Regulation ball valve carrys out controlling opening of valve and controls air-conditioner water outlet mouth respectively according to the feedback signal of cooling-water temperature sensor 101 102nd, the flow of radiator outlet 103 and oil cooler water outlet 104.

Engine thermal management control system controls cylinder body, Cooling of Cylinder Head water flow respectively by adjusting the aperture of regulation ball valve And engine water outlet is controlled to radiator, air conditioning warm air, the distribution of oil cooler water.So as to reach control cylinder body, cylinder The purpose of lid water channel water temperature realizes that rapid warming-up reduces frictional work with this, and control cylinder body cylinder barrel wall surface temperature reduces radiation loss, By adjusting the aperture of regulation ball valve cylinder body, cylinder cap water temperature is controlled to avoid engine in part load engine and high load capacity simultaneously Overheat, reduction row is mild to improve pinking border, and optimization burns to reduce engine consumption and discharge.

Controllable piston machine oil cooling injection system：

Further, the engine assembly as shown in Figure 11-1 and 11-2 further includes controllable piston machine oil cooling injection system 11；

Controllable piston machine oil cooling injection system 11 include machine oil cooling nozzles 111, machine oil cooling nozzles control valve 112 and Cylinder-body oil duct 113；

Machine oil cooling nozzles 111 are installed on the downstream position 113-1 of the cylinder-body oil duct 113 of cylinder barrel lower end, machine oil cooling Nozzle control valve 112 is installed on the upstream position 113-2 of the cylinder-body oil duct 113 of the exhaust side of engine, the control of machine oil cooling nozzles The opening and closing of valve 112 can control machine oil cooling nozzles 111 to open and close.

Engine control module can be according to the opening and closing of engine operation condition control machine oil cooling but nozzle control valve Carry out the injection start-up time of control machine oil cooling nozzles, reducing piston temperature by oil injection realizes that inhibition knocks the same of function When further to reduce the consumption of engine motor oil flow horizontal so as to improve engine consumption.

Middle intake and exhaust continuous variable valve timing system：

Further, as shown in figure 12, engine assembly further includes middle intake and exhaust continuous variable valve timing system 12；

Middle intake and exhaust continuous variable valve timing system 12 includes phaser control solenoid valve 121, central bolt control Valve 122 processed, camshaft phase adjuster 123, air inlet side phaser 124 and exhaust side phaser 125；

Phaser control solenoid valve 121, central spiral shell are mounted on air inlet side phaser 124 and exhaust side phaser 125 Bolt control valve 122 and camshaft phase adjuster 123.

Middle intake and exhaust continuous variable valve timing system has phase adjusted speed fast, and precision is high, and stability is good, machine The features such as specific oil consumption is low, the system are excellent for different engine operating conditions by adjusting open and close moment of inlet and exhaust valve Change intake and exhaust efficiency and achieve the purpose that improving power reduces oil consumption, 2000rpm, 2bar oil consumption is less than 355/kw.h.

Rolling bearing type low friction camshaft：

Further, as shown in Figure 13-1 and 13-2, engine assembly further includes rolling bearing type low friction camshaft 13；

Rolling bearing type low friction camshaft 13 include camshaft 131 and ball bearing 132 on camshaft 131, Ball bearing baffle ring 133, high-pressure oil pump driven cam 134 and camshaft-position signal disk 135；

The outer ring interference of ball bearing 132 is pressed into the independent cam axle bush covers 62 of 6 one grades of cylinder cap, then by camshaft 131 Interference is pressed into the inner ring of ball bearing 132, and ball bearing baffle ring 133 is mounted on the card of the independent cam axle bush covers 62 of 6 one grades of cylinder cap In slot, skidded off to ensure that ball bearing 131 will not loosen.

The friction loss of engine valve actuating mechanism can be reduced compared with sliding cam axis, is disappeared so as to reduce engine fuel Consumption.

Displacement-variable oil pump：

Further, as shown in figure 14, engine assembly further includes displacement-variable oil pump 14；

Displacement-variable oil pump 14 is arranged on oil sump 141, and by machine oil pump sprocket 142,143 and of lubricating oil pump chain Crankshaft sprocket 144 drives, and displacement-variable oil pump 14 is instructed by engine control module and carries out oil pressure switching.

Displacement-variable oil pump can need to adjust lubricating oil pump machine oil output pressure by the oil pressure ＆ oil masses of each system of engine, by This reduces the frictional work loss of the system, improves engine complete machine fuel economy.

Evaporative emission control system：

Further, as shown in figure 15, engine assembly further includes evaporative emission control system 15；

Evaporative emission control system 15 further comprises canister control valve 151, canister scavenger 152 and its connection Pipeline 153；

Wherein canister scavenger 152 is located at motor head air inlet side upper end position, 151 row of being installed on of canister control valve 154 chain is taken at the turbocharger inlet of gas side, and canister scavenger 152 is connected to canister control valve 151 by connecting line 153 On.

Evaporative emission control system is different from traditional fuel oil additional issue emission control systems, and canister scavenger can be actively Pressure difference of the fuel-steam without depending on canister and turbocharger inlet in canister is extracted, so as to more efficiently prevent Problem of environmental pollution caused by fuel vapor distributes in canister.

Crankcase ventilation system：

Further, as shown in figure 16, engine assembly further includes crankcase ventilation system 16；

Crankcase ventilation system 16 further comprises：Forced ventilation pipeline 161, pressure sensor 162, gs-oil separator 163 and camshaft housing 164；

Wherein forced ventilation pipeline 161 is located at engine head back-end location, the threeway that forced ventilation pipeline 161 uses Design connects vehicle gas handling system resonator port 161-1, the fresh air inlet 161-2 and gs-oil separator of crankcase respectively 163 outlet, pressure sensor 162 are installed on forced ventilation pipeline 161 and the link position of the outlet of gs-oil separator 163.

The conventional crankshafts box ventilation system that compares designs, the crankcase ventilation system degree of integration higher in the present embodiment, The system can effectively prevent problem of environmental pollution caused by gas distributes in crankcase, while the pressure on its pipeline Force snesor can effectively detect crankcase pressure scope, to monitor the working condition of the system.

Roller rocker arms hydraulic tappet valve train：

As shown in figure 17, engine further includes roller rocker arms hydraulic tappet valve train 17：It can be automatic using hydraulic tappet Valve gap adjustment is non-maintaining throughout one's life, and effectively reducing frictional work using roller rocker arms and cam contact reduces oil consumption.

The utility model also provides a kind of embodiment, and exhaust gas turbocharge is driven by motor, and rationally effective matching is set Meter is so that engine can reach optimum performance in high low speed；The mechanisms such as direct current generator, ECRV control valves are integrated with simultaneously, favorably In raising TRANSIENT DYNAMIC RESPONSE and sub-load oil consumption；Compact design is conducive to the diminution of engine overall dimensions.

Turbocharging technology can be significantly increased on the premise of engine displacement is not increased engine power and Torque reduces engine quality under the premise of vehicle performance demand is met, so as to reduce complete-vehicle oil consumption level.Turbocharger profit The indoor turbine of turbine is promoted with the exhaust gas inertia impulsive force of engine discharge, turbine drives coaxial impeller, impeller force feed again The air sent by air cleaner pipeline is allowed to supercharging into cylinder.Pressure and the density increase of air can burn more Fuel, so as to increase fuel quantity just to increase the output power of engine.The present embodiment is different from traditional vacuum and controls exhaust gas Bypass valve type booster, the turbocharger in the present embodiment employ motor driving exhaust gas by-pass valve, the advantage is that：Work as hair Motivation is operated under slow-speed of revolution running on the lower load, motor driving exhaust gas by-pass valve be in fully open position, reduce exhaust back pressure with Pumping loss improves fuel economy.Simultaneously in torque demand increase, exhaust gas by-pass valve can faster be placed in fully closed Position improves the TRANSIENT DYNAMIC RESPONSE of engine.

The utility model can be applied to 1.0L discharge capacities and following boosting type is economical or the middle-size and small-size car of entry level or Instead of the middle-size and small-size car of economy car or entry level for being applied to 1.6L discharge capacities and following natural aspiration.

Above is only the principle and preferred embodiment of the utility model.It should be pointed out that the common skill for this field For art personnel, on the basis of the utility model principle, several other modifications can also be made, also should be regarded as the utility model Protection domain.

Claims (17)

1. Cold direct-injection petrol engine assembly during 1. a kind of supercharging is integrated, which is characterized in that including being mounted on high-pressure casting aluminium alloy High pressure fuel direct-injection system, high energy efficiency chamber system, high pressure water cooling gas recirculation system, air intake duct and exhaust in cylinder body Road；

   High pressure fuel direct-injection system direct fuel injection into the high energy efficiency chamber system；

   By the air intake duct, by treated, exhaust gas is sent into the high energy efficiency burning to the high pressure water cooling gas recirculation system In chamber system；

   The exhaust gas of the high energy efficiency chamber system is entered by the exhaust duct in the high pressure water cooling gas recirculation system It is handled.
2. 2. engine assembly according to claim 1, which is characterized in that the high-pressure casting aluminium alloy cylinder is integrated with chain Roller box is also integrated with oil filter, oil cooler, mechanical water pump, starting motor, accessory system and compressor.
3. 3. engine assembly according to claim 2, which is characterized in that the engine assembly further include be installed on it is described Two-stage low-tension timing chain system in chain-wheel box；

   The two-stage low-tension timing chain system further comprises：Two-stage stretcher, low friction silencing chain, orbit determination, dynamic rail, on Guide rail and crankshaft sprocket；

   Wherein described two-stage stretcher is installed on cylinder body front end face, and the two-stage stretcher includes double plunger, and the low friction is quiet Sound chain is silent chain, and the dynamic rail is made of all-plastic material.
4. 4. engine assembly according to claim 1, which is characterized in that the engine assembly further includes cylinder cap, described Cylinder cap is integrated with exhaust manifold, EGR channel, independent cam axle bush covers, high-pressure oil pump installation FE Tiler, the air intake duct and the row Air flue, the independent cam axle bush covers further comprise big FE Tiler and small FE Tiler.
5. 5. engine assembly according to claim 4, which is characterized in that the high pressure fuel direct-injection system includes high pressure oil Pump, high-pressure oil pipe, oily rail and direct-injection fuel injector；

   The high-pressure oil pump is arranged on the independent cam axle bush covers of the exhaust side rear end of the cylinder cap, the direct-injection oil spout Device is connected as one with the oily rail under the air intake duct for the air inlet side for being installed on the cylinder cap, the head of the direct-injection fuel injector Portion is stretched in the combustion chamber of the cylinder cap.
6. 6. engine assembly according to claim 1, which is characterized in that the pressure of the high pressure fuel direct-injection system is 35Mpa。
7. 7. engine assembly according to claim 4, which is characterized in that the high pressure water cooling gas recirculation system includes Exhaust gas air hatch, EGR control valve and cooler for recycled exhaust gas；

   The exhaust gas air hatch is located at the exhaust side back-end location of the cylinder cap, and exhaust gas enters institute by the exhaust gas air hatch successively After stating EGR control valve, cooled down by the cooler for recycled exhaust gas；

   The cooler for recycled exhaust gas is designed with the EGR control valve for integral type, and is installed on the cylinder cap Exhaust side, the oral siphon of the cooler for recycled exhaust gas are connected in series to vehicle warm wind tube outlet, the exhaust gas recycling cooling The return pipe water route of device is respectively connected to vehicle kettle and engine water pump oral siphon.
8. 8. engine assembly according to claim 7, which is characterized in that the engine assembly further includes engine and integrates In cold gas handling system；

   By exhaust steam passage, exhaust gas recirculation circuit of the cooler for recycled exhaust gas exhaust gas after cooling via the cylinder cap Cold gas handling system during the engine integrates is entered, subsequently into the air intake duct；

   The flange that the exhaust gas recirculation circuit connects the position of cold gas handling system during the engine integrates is equipped with gas Temperature sensor controls gas inlet amount to Accurate Calibration.
9. 9. engine assembly according to claim 8, which is characterized in that the engine cold gas handling system bag in integrating It includes：Turbocharger, inter cooling pipeline and it is integrated in cold inlet manifold；

   Fresh air through it is described it is turbocharger supercharged after, through the inter cooling pipeline be connected to it is described it is integrated in cold inlet manifold The electronic air throttle body of inlet is entered back into described integrate in cold inlet manifold, by fresh air after cooling entrance Into the combustion chamber of the cylinder cap；

   Wherein, the inter cooling pipeline and it is described it is integrated in be respectively provided in cold inlet manifold in cold preceding temperature and pressure transmitter and in Temperature and pressure transmitter after cold, to demarcate monitoring charge air cooler working condition and accurately calculate air input of engine by air；

   It is described it is integrated in be additionally provided with charge air cooler in cold inlet manifold and enter water and charge air cooler water outlet, the two is connected in vehicle On cold waterway circulating.
10. 10. engine assembly according to claim 4, which is characterized in that the engine assembly is further included mounted on institute State the engine thermal management control system of cylinder cap tail end；

    The engine thermal management control system includes cooling-water temperature sensor, air-conditioner water outlet mouth, radiator outlet, oil cooler Water outlet and regulation ball valve；

    The regulation ball valve carrys out controlling opening of valve and the air-conditioning is controlled to go out respectively according to the feedback signal of the cooling-water temperature sensor The flow at the mouth of a river, the radiator outlet and the oil cooler water outlet.
11. 11. engine assembly according to claim 1, which is characterized in that the engine assembly further includes controllable piston Machine oil cooling injection system；

    The controllable piston machine oil cooling injection system includes machine oil cooling nozzles, machine oil cooling nozzles control valve and cylinder body oil Road；

    The machine oil cooling nozzles are installed on the downstream position of the cylinder-body oil duct of cylinder barrel lower end, the control of machine oil cooling nozzles Valve is installed on the upstream position of the cylinder-body oil duct of the exhaust side of engine, the unlatching of the machine oil cooling nozzles control valve and pass The controllable machine oil cooling nozzles are closed to open and close.
12. 12. engine assembly according to claim 1, which is characterized in that the engine assembly further include middle into It is vented continuous variable valve timing system；

    The middle intake and exhaust continuous variable valve timing system include phaser control solenoid valve, central bolt control valve, Camshaft phase adjuster, air inlet side phaser and exhaust side phaser；

    The phaser control solenoid valve, the center are mounted on the air inlet side phaser and the exhaust side phaser Bolt control valve and the camshaft phase adjuster.
13. 13. engine assembly according to claim 4, which is characterized in that the engine assembly further includes rolling bearing Formula low friction camshaft；

    The rolling bearing type low friction camshaft includes camshaft and ball bearing, ball bearing gear on the camshaft Circle, high-pressure oil pump driven cam and camshaft-position signal disk；

    The outer ring interference of the ball bearing is pressed into the independent cam axle bush covers of one grade of the cylinder cap, then will be described convex Wheel shaft interference is pressed into the inner ring of the ball bearing, and one grade of the independence that the ball bearing baffle ring is mounted on the cylinder cap is convex In the card slot for taking turns axle bush covers, skidded off to ensure that the ball bearing will not loosen.
14. 14. engine assembly according to claim 1, which is characterized in that the engine assembly further includes variable displacement Lubricating oil pump；

    The displacement-variable oil pump is arranged on oil sump, and is driven by machine oil pump sprocket, lubricating oil pump chain and crankshaft sprocket Dynamic, the displacement-variable oil pump is instructed by engine control module and carries out oil pressure switching.
15. 15. engine assembly according to claim 4, which is characterized in that the cylinder cap is equipped with cross-flow type cooling jacket, Current in the cross-flow type cooling jacket flow out exhaust side from air inlet side.
16. 16. engine assembly according to claim 1, which is characterized in that the engine assembly further includes fuel evaporation Emission control systems；

    The evaporative emission control system further comprises canister control valve, canister scavenger and its connecting line；

    Wherein described canister scavenger is located at motor head air inlet side upper end position, and the canister control valve is installed on exhaust side Chain at turbocharger inlet is taken over, and the canister scavenger is connected to by the connecting line on the canister control valve.
17. 17. engine assembly according to claim 1, which is characterized in that the engine assembly further includes crankcase and leads to Wind system；

    The crankcase ventilation system further comprises：Forced ventilation pipeline, pressure sensor, gs-oil separator and camshaft cover Cover；

    Wherein described forced ventilation pipeline is located at engine head back-end location, the design of tee joint that the forced ventilation pipeline uses Vehicle gas handling system resonator port, the fresh air inlet of crankcase and the outlet of gs-oil separator, the pressure are connected respectively Force snesor is installed on the forced ventilation pipeline and the link position of the outlet of the gs-oil separator.