CN109838283A

CN109838283A - Adjustable windage tray and the method for operating adjustable windage tray

Info

Publication number: CN109838283A
Application number: CN201811400419.0A
Authority: CN
Inventors: 马修·邓恩
Original assignee: Ford Global Technologies LLC
Current assignee: Ford Global Technologies LLC
Priority date: 2017-11-28
Filing date: 2018-11-22
Publication date: 2019-06-04
Also published as: DE102018129789A1; US10385742B2; US20190162088A1

Abstract

Present disclose provides " adjustable windage tray and the methods for operating adjustable windage tray ".Provide the method and system of the flow profile for adjusting windage tray.In one example, a kind of method for operating engine system is provided, which comprises operation engine is to execute burning；Determine engine speed；And the flow profile of multiple deflectors in the windage tray of positioning in the crankcase is adjusted based on the engine speed.

Description

Adjustable windage tray and the method for operating adjustable windage tray

Technical field

This specification relates in general to a kind of engine with engine system, and the engine system includes adjustable Windage tray；A kind of and method for operating the engine system.

Background technique/summary of the invention

Engine changes the fluid dynamics in crankcase using the windage tray positioned in the crankcase.Due to height Performance engine is tended to for a long time with high rotational speed operation, therefore the use of windage tray is especially general in high-performance enginer Time.However, the necessity of windage tray is based on engine operating condition and changes.During lower engine speed, in crankcase Turbulent flow oil so universal at high engine speeds may not be caused to mix gas problem.However, with engine speed Increase, the momentum in crankcase flow field and the oil leakage occurred via component bearing can be upset and at a high speed impinge upon in oil conservator Oil Free Surface on.Mixed gas is the intrinsic consequence of oil with the high Turbulent Flow Field interaction in crankcase.More static oil Free Surface is previous one of the design object of windage tray.However, the mixed gas of oil is obvious during lower engine speed It reduces and serious problems may not be caused.Therefore, during lower engine speed, it may not be necessary to by windage tray The stream of generation interrupts.In addition, windage tray may interfere with oil extraction during low engine speed.For example, oil may be hit On the surface of windage tray, so that oil extraction be interfered to operate.Particularly, due to the interference of windage tray, back to the oil of food tray Amount and/or speed may reduce.In addition, some windage trays are also possible to will cause the loss in crankcase ventilation system.

US 6,019,071 discloses a kind of windage tray, wherein providing the windage tray in the oil ejector with integration In oily flow path guide oil into the downside of engine piston.However, US 6, the windage tray disclosed in 019,071 is deposited The problem of above-mentioned slow oil extraction and crankcase ventilation are lost.

Recognize problem described above and to attempt to solve the problems, such as at least some, ladies and gentlemen inventor develops a kind of operation The method of engine system.The described method includes: operation engine is to execute burning；Determine engine speed；And based on hair Motivation revolving speed and the flow profile for adjusting multiple deflectors in positioning windage tray in the crankcase.In this way, it is possible to The flow profile of windage tray is dynamically adjusted, it is special to change the flowing in crankcase in broad range of engine speed Property.Therefore, thus it is possible to vary the function of windage tray is to adapt to engine operating condition, to for example enable windage tray selected The mixed gas of oil is reduced during operating condition, while reducing windage tray flowing interference during other operating conditions to increase oil extraction.

In one example, the deflector in windage tray can be in rotational speed operation of the engine to be lower than threshold rotation rate Open, and engine be higher than threshold rotation rate rotational speed operation when close.By this method, windage tray is for reducing lubricant Crankcase turbulent flow around reservoir, so that the oil during reducing high speed operation mixes gas.On the contrary, being grasped compared with wool(l)y-type engine During work, mitigate lubricant discharge interference by opening the deflector in windage tray, to improve lubricating system efficiency.

It should be understood that outlined above be provided for introducing essence further described in a specific embodiment in simplified form Select concept.This is not intended to determine that key or essential features of the claimed subject matter, the range of the theme are being had by following Claim after body embodiment uniquely limits.In addition, theme claimed is not limited to solve above or sheet The implementation of any disadvantage referred in disclosed any part.

Detailed description of the invention

Fig. 1 shows the schematic diagram of internal combustion engine, and the internal combustion engine includes the gas with adjustable adjustment deflector Flow block plate.

Fig. 2 shows the figures in the first exemplary section with the windage tray in the adjustable deflector for closing configuration Show.

Fig. 3 shows the figure in the first exemplary section with the windage tray in the adjustable deflector for opening configuration Show.

Fig. 4 shows the perspective view of another exemplary air flow block plate with adjustable deflector.

Fig. 5 shows the method that operation has the engine system of adjustable windage tray.

Fig. 6 shows another method that operation has the engine system of adjustable windage tray.

Fig. 7 shows the timing diagram of exemplary air flow block plate control strategy.

Specific embodiment

It is described below and is related to a kind of engine system and method, the engine system and method are used to turn based on engine Flow profile that is fast and changing windage tray, so that windage tray can act on during target condition to interrupt crankcase Turbulent flow.Engine system includes the gas with the adjustable deflector (for example, shutter) for being used to realize flowing interference changeability Flow block plate.Deflector can be pivoted or otherwise be moved to increase and decrease the crank case gases across windage tray Amount.In one example, deflector can be moved to open position during lower rotational speed operation to increase lubricant discharge.After Continue this example, during higher rotation speed operation, deflector can be closed to reduce crankcase turbulent flow and lubricant is caused to mix gas Possibility.Therefore, during high speed and low speed engine operation, engine lubrication is all enhanced, so that improves engine can By property and service life.

Fig. 1 shows the schematic diagram of the engine system with windage tray.Fig. 2 shows start with windage tray The example of machine system, wherein the deflector in windage tray is in the closed position.Fig. 3 shows engine system shown in Fig. 2 And windage tray, wherein deflector is in an open position.Fig. 4 shows the perspective view of another exemplary air flow block plate.Fig. 5 and Fig. 6, which shows operation, has the engine system of windage tray to change crankcase and lubricant reservoir based on engine operating condition The method of flow pattern in device.Fig. 7 is shown and windage tray control strategy relevant sequential chart, the windage tray control Strategy reduces lubricant in lubricant system and mixes gas and increase lubricant discharge.

Go to Fig. 1, it is schematically shown that the engine 10 with engine system 12 in vehicle 14.Although Fig. 1 is mentioned The schematic diagram of various engines and engine system is supplied, it will be appreciated that at least some of component can have and Fig. 1 institute The bigger structural complexity of the different spatial position of the component shown and ratio.It is discussed in more detail herein in relation to Fig. 2 to Fig. 4 The CONSTRUCTED SPECIFICATION of component.

It is also shown in Fig. 1 to combustion chamber 18 and the gas handling system 16 of air inlet is provided.Piston 20 is located in combustion chamber 18. Piston 20 is connected to crankshaft 22 via mechanical part 24 (for example, piston rod).Combustion chamber 18 is by being connected to the cylinder of cylinder head 28 The formation of body 26.Although Fig. 1 illustrates the engine 10 with a combustion chamber.In other examples, engine 10 can have Additional combustion chamber.For example, engine 10 may include multiple combustion chambers, the multiple combustion chamber in some cases can be by Group positioning.

Gas handling system 16 includes admission line 30 and the air throttle 32 for being connected to admission line.Air throttle 32 is configured as adjusting Section provides the amount to the air-flow of combustion chamber 18.In the example shown, admission line 30 is by air feed to inlet manifold 34.Into And inlet manifold 34 directs air into inlet valve 36.However, in other examples, such as in multicylinder engine, inlet air flow Road can be fed into other inlet valves from inlet manifold branch and by air inlet.

Inlet valve 36 can be activated by air inlet door actuator 38.Similarly, exhaust valve 40 can be by exhaust valve actuator 42 Actuating.In one example, air inlet door actuator 38 and exhaust valve actuator 42, which can use, is respectively coupled to admission cam shaft With the cam of exhaust cam shaft (not shown), to open/close valve.Continue the valve actuator example by actuated by cams, into Gas camshaft and exhaust cam shaft can be rotationally coupled to crankshaft 22.In addition, in such examples, valve actuator can benefit With cam profile transformation system (CPS), variable cam timing (VCT), variable valve timing (VVT) and/or lift range variable (VVL) one or more of system changes air door operation.Therefore, if it is desirable to which cam timing device then can be used Change valve timing.Thus, it will be understood that valve overlap may occur.In another example, inlet valve and/or exhaust valve cause Dynamic device 38 and 42 can be controlled by electric valve actuating.For example, valve actuator 38 and 42 can be via electronically actuated The electric valve actuator of control.In another example, engine 10 can alternatively include activating via electric air valve The exhaust valve of control and inlet valve via the cam-actuated control for including CPS and/or VCT system, vice versa.Another In a little other embodiments, intake and exhaust valves can be controlled by common valve actuator or actuating system.

Engine 10 further includes lubricating system 44, and the lubricating system 44 provides lubricant to engine components, such as Piston 20, crankshaft 22, mechanical part 24 etc..Lubricating system 44 include lubricant reservoir 46, the lubricant reservoir 46 from Lubricant is received by lubricating component (for example, piston, crankshaft, piston rod etc.).Therefore, the lubricant reservoir in lubricating system 44 46 can be designed to receive from by lubricating component, the lubricant of the discharges such as piston 20, crankshaft 22, mechanical part 24.Example Such as, lubricant reservoir 46 can be positioned at and be lubricated below lubricating component with receiving to have sprayed or be otherwise delivered to The oil of component.In the example shown, lubricant pump 48 is located in lubricant reservoir 46.However, in other examples, profit Lubrication prescription pump 48 can use the overlap joint locating pipeling extended in reservoir outside lubricant reservoir.Lubricant pump 48 is matched Being set to makes the lubricant of pressurization flow to a plurality of lubrication pipeline 50.Schematically show a plurality of lubrication pipeline 50.However, will Solution, lubrication pipeline can extend through the different sections of cylinder block 26 and/or cylinder head 28, provide lubricant to piston 20, crankshaft 22, mechanical part 24 etc..Lubricating system 44 can also include be designed to by lubricant spray or otherwise It is directed to the nozzle of piston, crankshaft etc., and is described in more detail herein relative to Fig. 2 and Fig. 3.Lubricating system 44 It further include valve, the valve, which is designed to adjust, to be provided to by the flow velocity of the lubricant of lubricating component, this will be herein relative to Fig. 2 and Fig. 3 are described in more detail.

Engine 10 can also include engine-cooling system (not shown).Engine-cooling system may include coolant Set, the coolant jacket make coolant circulation pass through cylinder head and/or cylinder block；And heat exchanger (for example, radiator), institute State the heat of heat exchanger removal coolant.

Fuel delivery system 52 is also shown in Fig. 1.Fuel delivery system 52 provides pressurized fuel to fuel injector 54.In the example shown, fuel injector 54 is the direct fuel injector for being connected to combustion chamber 18.It is additionally or alternative Ground, fuel delivery system 52 can also include port fuel-injectors, and the port fuel-injectors are designed to fire The fuel injection of 18 upstream of room is burnt into gas handling system 16.Fuel delivery system 52 includes fuel tank 56 and petrolift 58, described Petrolift 58 is designed to make pressurized fuel flowing to components downstream.Burning line 60 provides petrolift 58 and fuel injector 54 Between fluid communication.Fuel delivery system 52 may include conventional components, such as high pressure fuel pump, check-valves, return line Deng so that fuel can be provided with required pressure to injector.

It further include exhaust system 62 in vehicle 14 shown in FIG. 1, the exhaust system 62 is configured as management and carrys out spontaneous combustion The exhaust gas of room 18.Exhaust system 62 includes exhaust valve 40, and the exhaust valve 40 is designed to open and close to allow and prevent Waste gas stream goes to the components downstream of combustion chamber.Exhaust system 62 further includes emission control system 64, the emission control system 64 It is connected to the exhaust pipe 66 in 68 downstream of exhaust manifold.Emission control system 64 may include filter, catalyst, absorber Deng to reduce tailpipe discharge.Engine 10 further includes ignition system 70, and the ignition system 70 includes that be designed to will Amount provides the energy storage device 72 for arriving igniter 74.10008 additionally or alternatively, engine 10 can execute compression ignition.

Engine system 12 is designed to change the flow pattern in lubricant reservoir 46 and crankcase 82.Engine System 12 includes windage tray 84.Windage tray 84 includes adjustable deflector, and the adjustable deflector can be by actively It controls to change the amount for the crank case gases for flowing through windage tray.For example, deflector can be opened during low engine speed To allow crank case gases to flow through windage tray.Continue this example, can be closed during high engine speed deflector with Crank case gases are prevented to flow through windage tray.Deflector is described in further detail herein relative to Fig. 2 to Fig. 4.In addition, In one example, engine system 12 can also include lubricant reservoir 46, lubricant pump 48 and/or crankshaft 22.

During power operation, combustion chamber 18 is usually subjected to four-stroke cycle, including induction stroke, compression stroke, swollen Swollen stroke and exhaust stroke.During induction stroke, in general, exhaust valve closing and inlet valve opening.Air is via corresponding Admission line is introduced into combustion chamber, and piston is moved to the bottom of combustion chamber, to increase the indoor volume of burning.Piston Position close to the bottom of combustion chamber and where at the end of its stroke (for example, when combustion chamber is in its maximum volume) is logical Often it is generally referred to by those skilled in the art as lower dead center (BDC).During compression stroke, intake and exhaust valves are all closed.Piston court It is mobile to cylinder head, so as to the indoor air of compression and combustion.Piston is at the end of its stroke and near cylinder head (for example, working as When combustion chamber is in its minimum volume) locating for point be usually generally referred to by those skilled in the art as top dead centre (TDC).Quilt herein During referred to as spraying, fuel is introduced in combustion chamber.During referred to herein as lighting a fire, the spray in combustion chamber The fuel penetrated is via compressing ignition, so as to cause burning.However, in other examples, 10008 additionally or alternatively, carrying out self-ignition The spark of device can be used for lighting the air fuel mixture in combustion chamber.During expansion stroke, expanding gas is by piston It back into BDC.This piston motion is converted into the rotation torque of rotary shaft by crankshaft.During exhaust stroke, in traditional design In, exhaust valve is opened to the air-fuel mixture of remaining burning being discharged into corresponding exhaust passage, and piston returns Return to TDC.

Fig. 1 also shows the controller 100 in vehicle 14.Particularly, controller 100 is shown as conventional in Fig. 1 Microcomputer, the microcomputer include: microprocessor unit 102, input/output end port 104, read-only memory 106, Random access memory 108, keep-alive memory 110 and conventional data bus.Controller 100 is configured as starting from being coupled to The sensor of machine 10 receives various signals.Sensor may include engine coolant temperature sensor 130, exhaust gas constituents sensing Device 132, off-gas flows sensor 134, charge air flow sensor 136, manifold pressure sensor 137, engine speed sensor 138, vibrating sensor 140 etc..In addition, controller 100 is additionally configured to receive air throttle position from throttle position sensor 112 It sets (TP), the throttle position sensor 112 is connected to the pedal 114 activated by driver 116.

It is ordered in addition, controller 100 can be configured as the one or more actuators of triggering and/or send to component.Example Such as, controller 100 can trigger the adjustment to the following terms: air throttle 32, lubricating system 44, air inlet door actuator 38, exhaust Door actuator 42, engine system 12, fuel delivery system 52 and/or ignition system 70.Particularly, controller 100 can be by It is configured to send signal to windage tray 84 to adjust position of the deflector (for example, shutter) in windage tray.Controller 100 can be additionally configured to send control signal to lubricating system 44, be delivered to lubricant of the target by lubricating component with control Amount.In addition, controller 100, which can be configured as to petrolift 58 and fuel injector 54, sends control signal, mentioned with control It is supplied to amount and the opportunity of the fuel injection of combustion chamber 18.Controller 100 can also send control signal to air throttle 32 to change Engine speed.

Therefore, controller 100 from various sensors receive signal, and using various actuators to be based on received letter Number and the instruction that is stored in the memory (for example, non-transitory memory) of controller and adjust power operation.Therefore, will Understand, controller 100 can send signal to engine system 12 and receive from it signal.For example, in adjustment windage tray Deflector may include adjustment deflector actuator to adjust the deflector in windage tray.In another example, it adjusts The opening degree of deflector in windage tray can be empirically determined and be stored in scheduled look-up table and/or function.Example Such as, a table can correspond to determine that deflector is opened in windage tray when operating in first range of speeds when engine Degree, and another table can correspond to be operated in second range of speeds less than first range of speeds when engine When determine degree that deflector opens in windage tray.It can be directed to engine operating condition, such as engine speed, engine are negative Lotus and other engine operating conditions index for table.In addition, workbench can export a certain amount of in each cylinder cycle Fuel is to be ejected into combustion chamber via fuel injector.Thus, it will be understood that controller 100 can be configured as implementation herein Method, the control strategy etc. described relative to the engine system for including windage tray.

Fig. 2 shows the first example of internal combustion engine 200 and engine system 202 with section.In order to refer to, in Fig. 2 With z-axis and x-axis are provided in Fig. 3.In order to refer to, Fig. 4 also together illustrates y-axis together with z-axis and x-axis.In one example, z Axis can be parallel to gravity axis.In one example, x-axis can be horizontal axis.In addition, in one case, y-axis can be vertical Axis.However, in other examples, being expected to have other x-axis, y-axis and z-axis orientations.It will be appreciated that engine shown in Fig. 2 200 and engine system 202 be engine 10 and engine system 12 shown in FIG. 1 example.Therefore, shown in FIG. 1 to start Feature in machine 10 and engine system 12 can be included in engine 200 shown in Fig. 2 and engine system 202, instead ?.

Fig. 2 shows the engines 200 including cylinder block 204, and the cylinder block 204 is connected to cylinder head 206, thus shape At combustion chamber 208.Although showing only a cylinder in Fig. 2, it will be appreciated that engine 200 may include additional burning Room.It in such examples, can be for example in piston and associated work including the windage tray 210 in engine system 202 Extend below stopper rod.

In addition, exhaust valve 212 and inlet valve 214 are shown coupled to combustion chamber 208.Inlet valve 214 includes inlet valve Bar 215, and exhaust valve 212 includes exhaust valve rod 217.Accordingly, it is also illustrated in Fig. 2 in upstream inlet system unit under The admission line 216 and exhaust pipe 218 of fluid communication are provided between trip exhaust system component.

Piston 220 is located in combustion chamber 208.Piston 220 includes the piston ring 222 for being designed to sealed combustion chamber 208. Piston rod 224 is attached to piston 220 and crankshaft 226.

Direct fuel injector 228 is also depicted as being connected to combustion chamber 208.However, port fuel-injectors can be another Other places is alternatively included in engine.Lubricating system 230 is also shown in Fig. 2.Lubricating system 230 includes lubricant Pump 232, the lubricant pump 232 is designed to that lubricant is made to circulate through the lubricant line in lubricating system.In addition, one In a example, lubricant pump 232 can drive via the rotating energy extracted from crankshaft.However, in other examples, lubricant Pump 232 can be electrodynamic pump.It has been expected to have suitable pump, gear pump, cycloid gear pump, vane pump etc..Lubricant pump 232 include the overlap joint pipeline 234 with entrance 236, and the overlap joint pipeline 234 draws lubricant 283 from lubricant reservoir 238 It leads in pump.Lubricant pump 232 further includes the outlet 240 being in fluid communication with lubricant line 242.Lubricant valve 244 is connected to Lubricant line 242.Lubricant valve 244 is configured as changing the amount for the lubricant for flowing through lubricant line 242.For example, lubrication Agent valve 244 can be fully open, completely close and/or can have different opening and closing degree.Lubricant valve 244 And other lubricant valves described herein can be on/off the pneumatically actuated solenoid valve of electric actuation solenoid valve, ON/OFF, ON/OFF electricity Activate piezoelectric pile valve, electric actuation proportioning valve or pneumatically actuated proportioning valve.Nozzle 246 is connected to the end of lubricant line 242.Spray Mouth 246 is designed to guiding lubricant mist into the downside 248 of piston 220 into, to lubricate the piston.It will be appreciated that lubricating system 230 can also include additional lubricant line, and the additional lubricant line guides lubricant into other by lubricating component, Crankshaft 226, air inlet door rod 217, exhaust valve rod 215 etc..

Lubricant reservoir 238 is also included in lubricating system 230 shown in Fig. 2.Lubricant reservoir 238 includes shell Body 250, the shell 250 limit the interior zone 252 of the lubricant storage (for example, oil) of lubricant reservoir 238.

Crankcase 254 is also shown in Fig. 2.Crankcase 254 accommodates crankshaft 226.Crankshaft tank shell 256 can be used for crankshaft At least part on the boundary of case 254.In addition, in one example, cylinder block 204 can also form the boundary of crankcase 254.

Fig. 2 also shows crankcase ventilation system 258.Crankcase ventilation system 258 includes ventilation shaft 260, described logical Air piping 260 passes through crankshaft tank shell 256 and extends in crankcase 254.Therefore, the first end 262 of ventilation shaft 260 leads to song Axle box.Ventilation shaft 260 extends between crankcase 254 and admission line 216.Crankcase vent valve 264 is also coupled to ventilation Pipeline 260.When generating enough vacuum in admission line 216 and needing crankcase ventilation flow, crankcase can be opened Ventilation valve 264.Crankcase vent valve 264 can be controlled via the barometric gradient between gas handling system and crankcase.At one In example, crankcase vent valve and gs-oil separator pressure drop demand can be determined based on engine structure and operating condition.It will be appreciated that, Controller 100 can send signal to Fig. 2 and valve shown in Fig. 3, sensor etc. and receive from it signal.For example, controller The operation of 100 adjustable crankcase vent valves 264, lubricant pump 232, windage tray 210, lubricant valve 244 etc..

Engine system 202 includes windage tray 210.Engine system 202 can also include lubricant reservoir 238, Lubricant pump 232 and/or crankshaft 226.Windage tray 210 is located in below crankshaft (for example, being vertically positioned under the crankshaft Side) and 232 top of lubricant pump (for example, being vertically positioned above the lubricant pump).Windage tray 210 is also depicted as It is located in lubricant reservoir 238.It will be appreciated that, in other examples, windage tray 210 extends in crankcase 254. Therefore, in some instances, windage tray 210 can be attached (for example, being fixedly attached) to lubricant reservoir shell 250 And/or crankshaft tank shell 256.

Windage tray 210 is shown to include deflector 266.Deflector 266 is located in the angled section of the base portion 270 of pallet In 268.However, being expected to have other deflector positions.In closed position, deflector 266 can be upper with angled section 268 Surface 274 is aligned, to significantly reduce the crankcase air-flow that (for example, prevention) passes through windage tray.Deflector 266 movably joins (for example, being pivotally coupled) is connect to base portion 270.Particularly, deflector 266 is designed to pivot around deflector pivot 272.So And it is expected to have the deflector of the adjustment mechanism with substitution.

Fig. 2 also shows fixed deflection device 276 and opening 278 in windage tray 210.Opening 278 enables lubricant It is enough to be discharged and pass through windage tray and enter lubricant reservoir 238.In this way, it is possible to avoid the lubrication on windage tray Agent accumulation, to reduce the interference between lubricating system 230 and windage tray 210.It is thus possible to improve lubricating system 230 Efficiency.

The actuator 280 for being configured as the position of adjustment deflector is illustrated as coupled to deflector.It will be appreciated that, at other In example, single actuator, which can activate all deflectors or actuator, can activate more than one deflector.In an example In, actuator 280 can be the hydraulic actuator of the position via hydraulics control deflector 266 (for example, shutter).So And it is expected to have other suitable actuators.

The general direction of crankcase air-flow of the instruction of arrow 282 around windage tray 210.Therefore, at deflector 266 When closed position, the inside that crank case gases flow through windage tray 210 can be essentially prevented.However, in other examples, when When deflector 266 is in the closed position, the crankcase air-flow across windage tray can be significantly reduced.As shown in Fig. 2, crankcase Gas is led to the periphery close to lubricant reservoir shell 250 of windage tray.Therefore, reduce crank case gases to lubrication The interference of lubricant 283 (for example, oil) in agent reservoir 238, so that reducing lubricant mixes gas.It will be appreciated that windage tray 210 The flow pattern of surrounding has the complexity bigger than shown in Fig. 2.

It will be appreciated that windage tray 210 (for example, actuator 280), lubricant valve 244, crankcase vent valve 264, lubricant Pump 232 and/or direct fuel injector 228 can receive control signal from controller 100 shown in FIG. 1, and can also be to Controller sends signal.The engine speed sensor 284 for being connected to crankshaft 226 is also shown in Fig. 2.It will be appreciated that engine Speed probe 284 can send signal to controller 100 shown in FIG. 1.

Fig. 2 shows deflectors 266 in the closed position, and Fig. 3 shows the engine system with windage tray 210 System 202, wherein deflector is in an open position.It will be appreciated that, can order actuator 280 deflector 266 is placed in open position. Particularly, as shown in figure 3, deflector 266 is pivoted around deflector pivot 272, so that base of the deflector far from windage tray 210 Portion 270 extends.When deflector 266 moves by this method, the opening 300 in windage tray 210 is exposed at a time.However, It is expected that having other deflectors adjustment kinematic structure.When opening 300 is exposed at a time, crank case gases can flow through air-flow Block plate 210.Therefore, when deflector 266 is moved to open position from closed position, crank case gases pass through the stream of windage tray Speed increases.On the contrary, crank case gases pass through windage tray when deflector 266 is moved to closed position from open position Flow velocity reduces.Arrow 302 illustrates the general direction that air-flow passes through opening 300.It is to be understood, however, that in crankcase and passing through The flow pattern of opening has than shown bigger complexity.

In fully opening configuration, deflector 266 can be arranged perpendicular to the base portion 270 of windage tray 210.However, It is expected that having other orientations between completely open deflector and the base portion of windage tray.On the contrary, in closed position, partially Turn the base portion 270 that device 266 can be parallel to windage tray.However, having had already envisaged between the deflector and base portion of closing Other orientations, formed such as between deflector and base portion 2 °, 5 °, 10 ° angularly.In open position, deflector 266 allows Gas passes through windage tray 210 from crankcase 254 and flow to lubricant reservoir 238.

When deflector 266 is opened, lubricant can also flow through opening 300, to increase lubricant discharge.Lubricant is also It is discharged by the opening 278 next to fixed deflection device 276.Arrow 304 indicates that lubricant stream passes through the substantially road of opening 278 Diameter.Therefore, lubricant can be more effectively discharged in lubricant reservoir 238.

It will be appreciated that, in one case, when engine be higher than threshold rotation rate (for example, 5,000RPM, 5,500RPM, 6, 000RPM etc.) rotational speed operation when, the deflector 266 in windage tray 210 can be placed in opening configuration shown in Fig. 3. On the contrary, the deflector 266 in windage tray 210 can be placed in when rotational speed operation of the engine to be lower than threshold rotation rate In closing configuration shown in Fig. 2.

In another example, when the engine speed increases, the deflector 266 in windage tray 210 can be placed in In opening configuration shown in Fig. 3.Therefore, in such examples, when the engine speed decreases, deflector can be placed in Fig. 2 Shown in close configuration in.The control to the deflector in windage tray has been discussed in more detail with reference to Fig. 5, Fig. 6 and Fig. 7 in the text System strategy.

Fig. 3 again illustrates engine 200, engine system 202, cylinder block 204, cylinder head 206, combustion chamber 208, lives Plug 220, piston rod 224, crankshaft 226, crankshaft tank shell 256 and engine speed sensor 284.Also shown in Fig. 3 into Valve 214, exhaust valve 212, admission line 216, exhaust pipe 218, direct fuel injector 228, lubricant pump 232, lubrication Agent valve 244, lubricant line 242, nozzle 246, lubricant reservoir 238, crankcase ventilation system 258, ventilation shaft 260 with And crankcase vent valve 264.

Fig. 4 shows the perspective view of exemplary air flow block plate 400.Windage tray 400 shown in Fig. 4 is shown in Fig. 2 and Fig. 3 Windage tray 210 example.Therefore, windage tray 400 can be included in Fig. 2 and engine system shown in Fig. 3 202 In.In addition, windage tray 400 shown in Fig. 4 can receive signal from controller 100 shown in FIG. 1, to adjust the air-flow gear The operation of disk.

Windage tray 400 includes first end 402, second end 404, the first side 406 and second side 408.Windage tray 400 It further include flange 410, the flange 410 is configured to attach to crankshaft tank shell, cylinder block, lubricant reservoir shell etc. Section.

Windage tray 400 includes different deflector group 412, and each group has multiple deflectors 414.As indicated, every group In include multiple deflectors overlap each other, be in closed position shown in Fig. 4.However, in other examples, it is inclined in every group Turning device can be spaced apart from each other.Each deflector group is located in different lengthwise positions along windage tray 400.However, In other examples, windage tray may include the deflector being longitudinally extended downwards along the length of block plate.It will be appreciated that, being expected Have numerous deflector profiles that the flow profile of windage tray is actively adjusted.It will also be appreciated that windage tray 210 second side 408 may include the deflector group similar to the first side 406 of windage tray.

Deflector 414 shown in Fig. 4 is shown as louver board.In the example shown, each of louver board With similar geometry.However, in other examples, louvered profile can be for example in louvered group And/or change between group.Particularly, in the example shown, louver board has the length 416 greater than its width 418.Separately Outside, the top surface 420 of deflector is also depicted as substantially being flat.However, being expected to have other louver board geometry Shape.For example, louver board can have curved (for example, protrusion or recessed) upper surface and/or can longitudinal or It is tapered in transverse direction.

Deflector of the instruction of arrow 422 when deflector 414 is displaced to open position from closed position shown in Fig. 4 is mobile Direction.In one example, deflector group 412 can accordingly be adjusted.That is, each of deflector 414 can To open/close corresponding amount.However, in other examples, deflector group 412 can be independently adjustable.For example, can open First deflector group, and can close the degree that opens or closes in another deflector group or different deflector groups can be with Change in specific deflector between deflector group and/or in the group.For example, the first deflector group can be opened, and can be with Close another deflector group.The variation of deflector opening can be determined based on engine operating condition.For example, when engine is with height When the rotational speed operation of threshold rotation rate, deflector can be closed, and when rotational speed operation of the engine to be lower than threshold rotation rate, The deflector can be opened.In other examples, the opening degree of deflector can subtract with the increase of engine speed It is small.Accordingly, the opening degree of deflector can increase with the reduction of engine speed.

Fig. 2 to Fig. 4 shows the example arrangement of the relative positioning with various parts.If being shown as directly connecing each other Touching directly couples, then at least in one example, this class component can be known respectively as directly contact or directly connection.Class As, at least in one example, shown in element adjacent to each other or adjacent can distinguish it is adjacent to each other or adjacent.As one A example, the component coplanar with each other contiguously installed can be referred to as co-planar contacts.As another example, show at least one In example, only can there will be interval to be known as co-planar contacts without the element for being separated from each other positioning of other component therebetween.Make For another example, be shown as it is in mutual above/below, in two sides relative to each other or in mutual left/right Element can relative to each other be known as co-planar contacts.In addition, as shown, at least one example, top element or The highest point of element can be referred to as " top " of component, and the minimum point of bottommost element or element can be referred to as component " bottom ".As used herein, top/bottom, upper/lower, above/below can be for the longitudinal axis of attached drawing And for describing the positioning of element relative to each other in attached drawing.In this way, in one example, being illustrated as in other elements The element of side is positioned vertically within above other elements.As another example, the shape of the element described in attached drawing can be by Referred to as there are those shapes (for example, circle, straight line, plane, bending, circle, chamfering, angled etc.).In addition, at least In one example, intersection element can be referred to as or intersect by being shown as cross one another element.In addition, in an example In, be shown as in another element or be shown as another element-external element can be referred to as intersection element or It intersects.

It includes the method 500 that can adjust the engine system of windage tray of deflector that Fig. 5, which shows operation to have,.Method 500 and other methods described herein can be by the engine and piston heating system that are described above in regard to Fig. 1 to Fig. 4 Implement, or in other examples, can be implemented by other suitable engines and piston heating system.For the side of execution The instruction of method 500 and other methods described herein can be based on being stored in (for example, non-transitory) memory by controller Instruction performed by controller and can combine from the sensor of engine and correspondence system, such as retouched above with reference to Fig. 1 to Fig. 4 The sensor received signal stated executes.According to methods as described below, controller can be started using engine system Machine actuator adjusts power operation.

At 502, the method includes operating engine with engine speed.It will be appreciated that, can be based on from pedal position It sets the signal of sensor or other suitable acceleration request sensors and adjusts engine speed.Furthermore, it will be understood that with engine Rotational speed operation engine includes operation engine to execute burning.

At 504, the method includes determining engine operating condition.Engine operating condition may include engine speed, start Machine load, induction air flow ratio, engine temperature, exhaust gas flow velocity, exhaust gas constituents, engine luggine, crankcase ventilation flow velocity etc..Start Machine operating condition can be according to the signal sent from the various sensors in engine to determine and/or based on the signal from sensor And determine (for example, calculating).

At 506, whether the method includes determine engine with the rotational speed operation higher than threshold rotation rate.In some examples In, threshold rotation rate can be 4,000RPM, 4,500RPM or 5,000RPM.In another example, oil pressure, which can be, to use In the standard for determining the return flow velocity and windage tray operating condition that arrive oil pump.

If it is determined that engine is not to be higher than the rotational speed operation (being no at 506) of threshold rotation rate, then the method carries out To 508.At 508, the method includes maintaining opening degree of the deflector in windage tray.For example, can be by deflector Maintain the position for fully opening or partially opening.Therefore, windage tray can be in the case where deflector be in an open position Operation.By this method, crank case gases can flow through windage tray, and can increase the lubrication being discharged by windage tray Agent.In other examples, deflector can be moved to the position for fully opening or partially opening, or can increase at 508 partially Turn the opening degree of device.

On the other hand, if it is determined that engine is just to be higher than the rotational speed operation (being yes at 506) of threshold rotation rate, then described Method proceeds to 510.At 510, the method includes reducing the opening degree of deflector.By this method, crankcase is reduced Gas passes through the flow velocity of windage tray.In one example, the opening degree for reducing deflector may include being placed in deflector Closed position.Therefore, windage tray can be operated in the case where deflector is in the closed position.As previously mentioned, in close stance It sets, the crank case gases of the opening in windage tray can be essentially prevented.However, in other examples, reducing deflection The opening degree of device may include the position that deflector is placed in part closing.In addition, as previously mentioned, the opening of adjustment deflector Or closing degree may include that deflector is made to surround pivot pivot at one end.

At 512, whether the method includes determine engine with the rotational speed operation lower than threshold rotation rate.It will be appreciated that, can To determine operating condition again before step 512 or during this period.If it is determined that engine is not grasped with the revolving speed lower than threshold rotation rate Make (being no at 512), then the method proceeds to 514.At 514, the method includes maintaining the position of deflector.Example Such as, deflector can maintain closed position.

However, if it is determined that engine is just to be lower than the rotational speed operation (being yes at 512) of threshold rotation rate, then the method Proceed to 516.At 516, the method includes reducing the opening degree of deflector.In one example, increase deflector Opening degree may include being moved to deflector to partially open or completely open position.

It will be appreciated that, step 506,510,512 and 516 can be included in based on engine speed and adjust in windage tray Multiple deflectors flow profile more generally step in.By this method, windage tray can be adjusted to adapt to current Engine operating condition.

At 518, the method includes determining whether crankcase ventilation increases.The position of crankcase vent valve can be used And/or intake manifold pressure determines whether crankcase ventilation increases.In other examples, crankcase ventilation gas can be determined Flow velocity whether be more than threshold value.

If it is determined that crankcase ventilation does not increase (being no at 518), then the method proceeds to 520.At 520, The method includes maintaining current threshold engine speed.However, if it is determined that crankcase ventilation increase (is at 518 It is), then the method proceeds to 522, wherein the method includes reducing threshold engine speed.By this method, work as crankcase When ventilating system leads to the increased turbulent flow in crankcase and lubricant reservoir, threshold engine speed can reduce.Therefore, Deflector in windage tray can close at low engine speeds, mix gas to reduce lubricant.

Fig. 6 shows another method that operation has the engine system of the windage tray with adjustable deflector 600.As described above, the method can be by the engine that describes above in regard to Fig. 1 to Fig. 4 and engine system come real It applies, or can be implemented by other suitable engines and engine system.

At 602, the method includes determining engine operating condition.Operating condition may include engine speed, engine load, Induction air flow ratio, engine temperature, exhaust gas flow velocity, exhaust gas constituents, engine luggine, crankcase ventilation flow velocity etc..It will be appreciated that, starting Machine can be operated according to aforementioned case.

At 604, the method includes determining whether engine speed increases.If engine speed increases (at 604 It is yes), then the method proceeds to 606.At 606, the method includes reducing opening journey of the deflector in windage tray Degree.For example, the deflector in windage tray can be placed in the off or partially closed position.However, if engine turns Speed does not increase (being no at 604), then the method proceeds to 608.At 608, the method includes determining that engine turns Whether speed reduces.If engine speed reduces (being yes at 608), the method proceeds to 610.At 610, the side Method includes the opening degree for increasing deflector in windage tray.On the other hand, if engine speed does not reduce (608 Place is no), then the method is moved to 612.At 612, the method includes maintaining opening of the deflector in windage tray Degree.It will be appreciated that, in other examples, whether step 604 and 608 may include determining engine to be higher than threshold rotation rate respectively Rotational speed operation or whether be lower than threshold rotation rate rotational speed operation.

At 614, the method includes determining whether engine luggine is greater than threshold value.If engine luggine is greater than threshold value (being yes at 614), then the method is moved to 616, wherein the method includes reducing deflector beating in windage tray Open degree.Thus, it will be understood that vibration may be the catalyst that lubricant mixes gas, therefore can be based on the variation of engine luggine And responsively adjust windage tray profile.In this way, it is possible to the deflector during the high vibration stage in closed gas flow block plate, Gas is mixed to reduce lubricant.If engine luggine is not more than threshold value (being no at 614), the method is moved to 618, Described in method include maintaining position of the deflector in windage tray.Method 600 enables the flow profile of windage tray It is adjusted to reduce the mixed gas of lubricant in engine speed increase, and increases lubricant row when engine speed reduces Out.

Fig. 7 is turned now to, curve graph 700 illustrates example engine system control signal and such as Fig. 1 is retouched into Fig. 6 The engine speed and crankcase ventilation flow velocity curve graph stated.The example of Fig. 7 is substantially drawn to scale, but each point It is not marked with numerical value.Therefore, the relative different of timing can be estimated by the size of drafting.However, if it is desired to Other relative timings can be used.In addition, the time of each of curve and drawing indicates in x-axis.It will also be appreciated that Fig. 7 In curve graph be exemplary in itself, and in other examples, controlling timing, threshold value of signal etc. can change.

With continued reference to Fig. 7, curve 702 illustrates engine speed (along y-axis).Signal 704 instruction be sent to have can Adjust the control signal of the windage tray of deflector.Curve 706 illustrates the flow velocity into the crank case gases of gas handling system.Hair The control signal 704 for being sent to windage tray is shown to include two values (that is, opening and closing).It is to be understood, however, that more limited Adjustment be it is possible, such as adjust deflector step by step or continuously, deflector be placed in different partial open positions. For example, deflector can have multiple positions with different opening degrees.Therefore, each of different deflector positions permit Perhaps different amounts of crankcase gas stream passes through windage tray.In this way, it is possible to be based on engine operating condition and finely tune deflector open/ Closing degree.

At t1, engine speed is more than threshold engine revolving speed 708.Previously discussed technology can be used to determine threshold It is worth engine speed.It is more than threshold engine speed in response to engine speed, the control signal 704 for being sent to windage tray becomes For " opening ".Therefore, the deflector in windage tray is opened to allow crank case gases to flow therethrough, and allows lubricant It is discharged by windage tray.

At t2, engine speed drops to 708 or less threshold engine revolving speed.Drop to threshold in response to engine speed Value engine speed 708 is hereinafter, the control signal 704 for being sent to windage tray becomes " closing " with reduction (for example, preventing) song Crankcase gas flows through the opening in windage tray.Therefore, when in close configuration when, windage tray reduce crank case gases with Flowing interference between lubricant in lubricant reservoir, so that reducing lubricant mixes gas.

At t3, crankcase ventilation flow velocity is more than threshold value 710.When crankcase ventilation flow velocity is more than threshold value 710, responsively Reduce threshold engine revolving speed 708.It is more than threshold value in response to crankcase ventilation flow velocity, is sent to the control signal of windage tray 704 become " opening ".Control strategy shown in Fig. 7 enables the flow profile of windage tray to be based on engine speed and crankshaft Case aeration flow and change so that windage tray is capable of providing the different function for adapting to different engine conditions (for example, the mixed gas of oil It reduces and increased oil extraction).This improves the efficiency of lubricating system.

Engine system and method described herein have during high engine speed reduce lubricant mix gas and Increase the technical effect of lubricant discharge during lower engine speed.It therefore, can in broad range of engine operating condition Improve lubricating system efficiency.

Present invention will be further described in the following paragraphs.On the one hand, a kind of method for operating engine system is provided, The described method includes: operation engine is to execute burn operation；Determine engine speed；And it is based on engine speed and adjusts The flow profile of multiple deflectors in the windage tray of positioning in the crankcase.

On the other hand, a kind of engine system is provided, the engine system includes: lubricant reservoir, the profit Lubrication prescription reservoir receives lubricant from by lubricating component；Lubricant pump, the lubricant pump are located in lubricant reservoir；It is bent Axis, the crankshaft are vertically positioned in crankcase above lubricant reservoir and receive rotation input from piston rod；Gas Block plate is flowed, the windage tray is vertically positioned between lubricant pump and crankshaft, and the windage tray includes keeping off along air-flow Multiple deflectors that disk is longitudinally extended；And code stored in memory, the code can be rung by processor execution Should in engine speed reduction and increase the opening degrees of multiple deflectors.

On the other hand, a kind of method for operating engine system is provided, which comprises to be greater than starting for threshold value Machine rotational speed operation engine；And it in response to operating engine with the engine speed for being greater than threshold value, adjusts in windage tray The position of flow deflector is to reduce the flow velocity that crank case gases pass through the opening in windage tray.

Any of in terms of this paper or in the combination of aspect, the flow profile of the deflector in windage tray is adjusted It may include: the opening degree for increasing deflector when engine speed is less than threshold value；And when engine speed is greater than threshold value When reduce deflector opening degree.

Any of in terms of this paper or in the combination of aspect, the method can also include being based on crank case gases Threshold value is adjusted by the flow velocity that crankcase ventilation system enters gas handling system.

Any of in terms of this paper or in the combination of aspect, adjustment threshold value may include in response to crank case gases Reduce threshold value by the increase that crankcase ventilation system enters the flow velocity of gas handling system.

Any of in terms of this paper or in the combination of aspect, the method can also include being based on engine luggine And adjust the flow profile of multiple deflectors.

Any of in terms of this paper or in the combination of aspect, adjustment deflector may include in deflector Each, surrounds deflector at one end and pivots.

Any of in terms of this paper or in the combination of aspect, multiple deflectors can be louver board.

Any of in terms of this paper or in the combination of aspect, louver board can have the length greater than width.

Any of in terms of this paper or in the combination of aspect, multiple deflectors can be in the opening of multiple deflectors It is pivoted during the increase of degree around pivot.

Any of in terms of this paper or in the combination of aspect, engine system can also include being stored in memory In code, the code can reduce the opening of multiple deflectors by processor execution come the increase in response to engine speed Degree.

Any of in terms of this paper or in the combination of aspect, the increase of engine speed may include that engine turns Speed increases to threshold value or more.

Any of in terms of this paper or in the combination of aspect, engine system can also include being stored in memory In code, the code can be based on crank case gases by processor execution and enter gas handling system by crankcase ventilation system Flow velocity and adjust threshold value.

Any of in terms of this paper or in the combination of aspect, adjustment threshold value may include: in response to crankcase gas The reduction for the flow velocity that body enters gas handling system by crankcase ventilation system increases threshold value；Or pass through in response to crank case gases Crankcase ventilation system enters the increase of the flow velocity of gas handling system and reduces threshold value.

Any of in terms of this paper or in the combination of aspect, engine system can also include being stored in memory In code, the code can increase the opening degree of multiple deflectors by processor execution based on engine luggine.

Any of in terms of this paper or in the combination of aspect, the method may include: the hair to be less than threshold value Motivation rotational speed operation engine；And it in response to operating engine with the engine speed for being less than threshold value, adjusts in windage tray Multiple deflectors position to increase the flow velocity of opening of the crank case gases in the windage tray.

Any of in terms of this paper or in the combination of aspect, adjustment threshold value may include at least one in following Person: the reduction in response to the flow velocity that crank case gases enter gas handling system by crankcase ventilation system increases threshold value；And Increase in response to the flow velocity that crank case gases enter gas handling system by crankcase ventilation system reduces threshold value.

Any of in terms of this paper or in the combination of aspect, the position for adjusting multiple deflectors may include being directed to Each of deflector pivots deflector around deflector at one end.

It should be noted that the example control and estimation routine that include herein can match with various engines and/or Vehicular system It sets and is used together.Control method and routine disclosed herein can be used as executable instruction and be stored in non-transitory memory, And it can be by including that the control system of controller combines various sensors, actuator and other engine hardwares to come together to hold Row.Particular routine described herein can indicate any amount of processing strategie, such as event-driven, interrupt driving, multitask, One or more of multithreading etc..Therefore, various movements, operation and/or function shown in can in the order shown, parallel Ground executes, or is omitted in some cases.Similarly, the processing order, which is not necessarily, realizes that example described herein is implemented Necessary to the feature and advantage of example, but just provided with description for convenience of explanation.Depending on the specific plan being being used Slightly, one or more of illustrated acts, operation and/or function can be repeated.In addition, it is described movement, operation and/ Or function can schematically indicate the non-provisional of the computer readable storage medium that can be programmed into engine control system Property memory in code, wherein by being held in the combined system for including various engine hardware components and electronic controller Row described instruction executes described movement.

It will be appreciated that, configuration disclosed herein and routine are exemplary in itself, and these specific embodiments are not answered It is considered as restrictive meaning, because numerous variations are possible.For example, the above technology can be applied to V-6, in-line 4 cylinders, In-line 6 cylinders, V-12, opposed 4 cylinder and other engine types.The theme of the disclosure includes various systems and configuration, Yi Jiben All novel and non-obvious combination and sub-portfolio of literary disclosed other features, function and/or property.

Following following claims, which points out, is considered as certain combinations and sub-combinations that are considered novel and non-obvious.These Claim may refer to "one" element or " first " element or its equivalents.This kind of claim should be read to include One or more such elements, the both combination of two or more neither requiring nor excluding such elements.It can be worked as by modification Preceding claim proposes new claim here or in related application disclosed feature is claimed, function, wants Other of element and/or property combination and sub-portfolio.Compared with the range of original claim, this kind of claim either range Bigger, smaller, equivalent or difference is also regarded as in the range of the theme for being included in the disclosure.

According to the present invention, a kind of method operating engine system includes: operation engine to execute burning；Determination is started Machine revolving speed；And the flow wheel of multiple deflectors in the windage tray of positioning in the crankcase is adjusted based on engine speed It is wide.

According to one embodiment, the flow profile for adjusting the deflector in windage tray includes: when engine speed is less than Increase the opening degree of deflector when threshold value；And reduce the opening degree of deflector when engine speed is greater than threshold value.

According to one embodiment, being further characterized by for the above invention passes through crankcase ventilation based on crank case gases System enters the flow velocity of gas handling system and adjusts threshold value.

According to one embodiment, adjusting threshold value includes entering air inlet by crankcase ventilation system in response to crank case gases The increase of the flow velocity of system and reduce threshold value.

According to one embodiment, the above invention is further characterized by based on engine luggine and adjusts multiple deflections The flow profile of device.

According to one embodiment, adjusting deflector includes surrounding deflector at one end for each of deflector It pivots.

According to the present invention, a kind of engine system is provided, the engine system includes lubricant reservoir, described Lubricant reservoir receives lubricant from by lubricating component；Lubricant pump, the lubricant pump are located in lubricant reservoir； Crankshaft, the crankshaft are vertically positioned in crankcase above lubricant reservoir and receive rotation input from piston rod； Windage tray, the windage tray are vertically positioned between lubricant pump and crankshaft, and the windage tray includes along air-flow Multiple deflectors that block plate is longitudinally extended；And code stored in memory, the code can by processor execution Lai: In response to engine speed reduction and increase the opening degrees of multiple deflectors.

According to one embodiment, multiple deflectors are louver boards.

According to one embodiment, louver board has the length greater than width.

According to one embodiment, multiple deflectors enclose pivot axis during the increase of the opening degree of multiple deflectors Turn.

According to one embodiment, the above invention is further characterized by code stored in memory, the code The opening degree of multiple deflectors can be reduced come the increase in response to engine speed by processor execution.

According to one embodiment, the increase of engine speed includes that engine speed increases to threshold value or more.

According to one embodiment, the above invention is further characterized by code stored in memory, the code Threshold value can be adjusted by the flow velocity that crankcase ventilation system enters gas handling system based on crank case gases by processor execution.

According to one embodiment, adjust threshold value include: in response to crank case gases by crankcase ventilation system enter into The reduction of the flow velocity of gas system and increase threshold value；Or gas handling system is entered by crankcase ventilation system in response to crank case gases Flow velocity increase and reduce threshold value.

According to one embodiment, the above invention is further characterized by code stored in memory, the code The opening degree of multiple deflectors can be increased based on engine luggine by processor execution.

According to the present invention, a kind of method operating engine system includes: the engine speed operation hair to be greater than threshold value Motivation；And in response to operating engine with the engine speed for being greater than threshold value, adjust the flow deflector in windage tray Position is to reduce the flow velocity that crank case gases pass through the opening in windage tray.

According to one embodiment, the above invention is further characterized by be less than the engine speed of threshold value operation hair Motivation；And in response to operating engine with the engine speed for being less than threshold value, adjust multiple deflectors in windage tray Position is to increase the flow velocity that crank case gases pass through the opening in windage tray.

According to one embodiment, it includes at least one of following for adjusting threshold value: passing through crankshaft in response to crank case gases Box ventilation system enters the reduction of the flow velocity of gas handling system and increases threshold value；And it is logical by crankcase in response to crank case gases Wind system enters the increase of the flow velocity of gas handling system and reduces threshold value.

According to one embodiment, the position for adjusting multiple deflectors includes making deflector for each of deflector It is pivoted at one end around deflector.

Claims

1. a kind of method for operating engine system, which comprises

Engine is operated to execute burning；

Determine engine speed；And

The flow profile of multiple deflectors in the windage tray of positioning in the crankcase is adjusted based on the engine speed.

2. the method as described in claim 1, wherein the flow profile for adjusting the deflector in the windage tray includes: when hair Motivation revolving speed increases the opening degree of the deflector when being less than threshold value；And when the engine speed is greater than the threshold value Reduce the opening degree of the deflector.

3. method according to claim 2, the method also includes based on crank case gases by crankcase ventilation system into Enter the flow velocity of gas handling system and adjusts the threshold value.

4. method as claimed in claim 3, wherein adjusting the threshold value includes passing through the crankshaft in response to crank case gases Box ventilation system enters the increase of the flow velocity of the gas handling system and reduces the threshold value.

5. the method as described in claim 1, the method also includes adjusting the multiple deflector based on engine luggine Flow profile.

6. the method as described in claim 1, wherein adjusting the deflector includes making for each of described deflector The deflector surrounds at one end to be pivoted.

7. a kind of engine system, the engine system include:

Lubricant reservoir, the lubricant reservoir receive lubricant from by lubricating component；

Lubricant pump, the lubricant pump are located in the lubricant reservoir；

Crankshaft, the crankshaft, which is vertically positioned in crankcase above the lubricant reservoir and receives from piston rod, to be revolved Transfer into；

Windage tray, the windage tray are vertically positioned between the lubricant pump and the crankshaft, the windage tray Including the multiple deflectors being longitudinally extended along the windage tray；And

Code stored in memory, the code can by processor execution Lai:

In response to engine speed reduction and increase the opening degree of the multiple deflector.

8. engine system as claimed in claim 7, wherein the multiple deflector is louver board.

9. engine system as claimed in claim 8, wherein the louver board has the length greater than width.

10. engine system as claimed in claim 7, wherein the multiple deflector is beaten described in the multiple deflector It is pivoted during opening the increase of degree around pivot.

11. engine system as claimed in claim 7, the engine system further includes code stored in memory, The code can be executed the opening for reducing the multiple deflector come the increase in response to engine speed by the processor Degree.

12. engine system as claimed in claim 11, wherein the increase of the engine speed includes that engine speed increases It is added to threshold value or more.

13. engine system as claimed in claim 7, the engine system further includes code stored in memory, The code can be executed to enter the stream of gas handling system by crankcase ventilation system based on crank case gases by the processor Speed and adjust the threshold value.

14. engine system as claimed in claim 7, wherein adjusting the threshold value includes: to pass through in response to crank case gases The crankcase ventilation system enters the reduction of the flow velocity of the gas handling system and increases the threshold value；Or in response to crankcase gas The increase for the flow velocity that body enters the gas handling system by the crankcase ventilation system reduces the threshold value.

15. engine system as claimed in claim 7, the engine system further includes code stored in memory, The code can be executed to increase the opening degree of the multiple deflector based on engine luggine by the processor.