CN108026804A - Diesel engine pollution control system - Google Patents

Abstract

Pollution control system for diesel engine includes the Pcv valve and oil strainer being placed in together in container.Unlatching/closed mode of PCV is adjusted in response to gas blowby state by controller, and preferably wireless, gas blowby state includes air pressure, temperature, component and/or flow rate.Controller is also received from embedded gas blowby sensor wireless and measured, for adjusting Pcv valve.Oil strainer is from gas blowby eliminating particle material, and condensation of oil, thereby returns to engine.Controller adjusts the air leak amount discharged by system.

Description

Diesel engine pollution control system

Technical field

This patent disclosure relates generally to a kind of system for being used to control pollution.Especially, the present invention relates to one kind to pass through Pcv valve group Part filter engine fuel byproduct is with system to be recycled, to reduce discharge and to improve engine performance.

Background technology

Basic type of the running based on combustion process, cylinder flow and the required purposes/function of standard internal combustion engines and slightly Change.For example, traditional two cycle engine, before crankcase is entered, oil is closed with fuel and air pre-mixing.In intake period Between, by the way that oil/fuel/air mixture is pumped into crankcase by the vacuum that piston produces.Oil/fuel mixture is in crankcase Cylinder wall, crankshaft-and-connecting-rod bearing provide lubrication.In normal benzine engine, fuel then in a combustion chamber compression and by Plug ignition, causes fuel combustion.There is no spark plug in diesel engine, therefore the burning in diesel engine is merely due in combustion chamber Heat and compression and occur.Then piston advances downwardly, and when piston exposes exhaust outlet, it is allowed to exhaust gas exits vapour Cylinder.Remaining oil/fuel in piston motion pressurization crankcase, and allow extra green oil/fuel/air mixture to rush in cylinder, by Remaining exhaust is released exhaust outlet by this at the same time.With the process is repeated, momentum driving piston returns to compression stroke.

Alternatively, in four-stroke engine, oil lubrication and the fuel/air mixture of crankshaft-and-connecting-rod bearing separate.Here, Crankcase is substantially filled with air and oil.Inlet manifold is received and mixed from not homologous fuel and air.In inlet manifold Fuel/air mixture be pumped into combustion chamber, (in normal benzine engine) spark ignitor and burnt at this.In bavin In oil machine, fuel/air mixture is lighted by the heat in combustion chamber and pressure.Combustion chamber by Piston volume tube substantially with bent axle Case is isolated, and Piston volume tube is arranged on the piston external diameter in piston cylinder.So maintain the oil in crankcase, rather than be two punching In journey engine, it is allowed to its part burning as combustion stroke.Unfortunately, piston cylinder cannot be fully sealed in piston ring.Knot Fruit, it is intended to which the crankcase oils of lubrication of cylinders are pumped into combustion chamber and burn in combustion on the contrary.In addition, include not in cylinder Burning fuel and the burning waste gas of exhaust by piston ring and enter crankcase at the same time.Exhaust gas into crankcase is commonly referred to as " gas leakage (blow-by) " or " gas blowby (blow-by gas) ".

Gas blowby is mainly made of the pollutant, carbon dioxide or vapor of such as hydro carbons (unburned fuel), these wholes Engine crankcase is harmful to.The amount of crankcase gas blowby can be the several times of the hydro carbons concentration in inlet manifold.Only discharge this A little gases add air pollution to air.Although as the passage of time, carrying out trapping to crankcase gas blowby allows pollutant Condense out from air and gather.The pollutant of condensation is in crankcase Inner Constitution corrosive acid and sediment, and which dilutes profit Lubricating oil.So reduce the ability of oil lubrication cylinder and crankcase.The oil of degraded can not suitably lubricate crankcase components (such as Crankshaft-and-connecting-rod), it may be possible to the factor of engine performance difference.Insufficient crankcase lubrication causes the unnecessary abrasion of piston ring, This reduces the airtight quality between combustion chamber and crankcase at the same time.With engine aging, between piston ring and cylinder wall between Gap increases, and causes a greater amount of gas blowbies to enter crankcase.Excessive gas blowby, which enters crankcase, may cause power attenuation even engine Failure.Moreover, the condensation moisture in gas blowby may cause engine components to get rusty.

These problems are especially problematic in diesel engine.Diesel combustion diesel oil, diesel oil are more cunning heavier than gasoline.With Diesel combustion, it produces carcinogenic substance, particle matter (cigarette ash) and NOx (nitrogen pollutant).Here it is most of diesel engine with from The reason for image that its exhaust pipe sprays the large truck of black smoke has contacted.Similarly, the gas blowby that diesel engine crankcase produces It is more cunning more much heavier than gasoline gas blowby.Therefore, the crankcase ventilation system for diesel engine is researched and developed to make up crankcase gas blowby Presence.In general, gas blowby is discharged positive crankcase ventilation (PCV) (PCV) valve and enters inlet manifold by crankcase ventilation system, With burning of waiting to restrike.In diesel engine, diesel oil gas blowby is than heavier more cunning in gasoline engine.With regard to this, can lead in diesel oil gas blowby Cross before inlet manifold recycling, it is necessary to filter them.

Pcv valve recycles (release) gas blowby from crankcase and enters inlet manifold, with stay in burn during with fresh air/ Fuel supply is burnt again together.Since harmful gas blowby is not to be simply discharged into air, this is special satisfaction needs.It is bent Ventilation system for shaft box should also be designed as limiting, or ideally eliminate the gas blowby of crankcase, to keep crankcase as dry as possible Only.Early stage Pcv valve only includes one way stop peturn valve.The pressure difference that these Pcv valves are relied only between crankcase and inlet manifold comes correct Play a role.When in intake period, piston travels downwardly, the air pressure of inlet manifold gets lower than the ambient air of surrounding.This As a result it is commonly referred to as " engine vacuum ".Air is pumped to inlet manifold by vacuum.Therefore, air can pass through Pcv valve from crankcase Inlet manifold is pumped into, Pcv valve provides conduit therebetween.Pcv valve is substantially that gas blowby opens one-way passage, to be arranged from crankcase It is put back into inlet manifold.If pressure difference changes (i.e. the pressure of inlet manifold becomes to be relatively higher than the pressure of crankcase), Pcv valve is closed Close and prevent gas from leaving inlet manifold and enter crankcase.Therefore, Pcv valve is " positive " crankcase ventilation system, wherein only Gas is allowed to flow in one direction --- flow out into inlet manifold from crankcase.One way stop peturn valve be substantially standard-sized sheet or Fully closed valve.That is, which fully opens during the pressure of inlet manifold is relatively lower than the pressure of crankcase.Alternatively, work as crankcase Pressure when being relatively lower than the pressure of inlet manifold, which completely closes.Pcv valve based on one way stop peturn valve can not be taken into account The number change of gas blowby present in any given time introversion axle box.The amount of crankcase gas blowby according to different drive conditions simultaneously It is varied from according to the manufacture of engine and model.

Pcv valve design improves to some extent on basic monomial check-valves, and can preferably adjust from crankcase scavenged To the air leak amount of inlet manifold.A kind of Pcv valve design positions such as cone or disk using spring relative to ventilation hole Internal flow restrictor, the gas blowby from crankcase to inlet manifold flow through the ventilation hole.Internal flow restrictor is placed in a certain near ventilating opening At distance, the distance is to engine vacuum relative to the horizontal proportional of spring tension.The purpose of spring be respond crankcase with Pressure change between inlet manifold and vacuumize.This design is intended to improve standard-sized sheet or fully closed one way stop peturn valve.Such as in the spare time When putting, engine vacuum is high level.Spring biasing current limiter is set as considering big pressure difference and releasing a large amount of gas blowbies, even if engine Generating the gas blowby of relatively small amount.Internal flow restrictor is placed as generally allowing for the gas from crankcase to inlet manifold by spring Stream.In acceleration period, engine vacuum declines due to the increase of engine load.Therefore, spring can be downward by internal flow restrictor Push back, to reduce the air-flow from crankcase to inlet manifold, even if engine is generating more gas blowbies.Then, with vehicle Into constant cruising speeds, vacuum pressure increases as acceleration reduces (i.e. engine load reduces).Again, springs return Internal flow restrictor leaves ventilation hole, reaches a position, so generally allows for the air-flow from crankcase to inlet manifold.In this feelings Under condition, it is generally desirable to air-flow from crankcase to inlet manifold is increased based on pressure difference because engine on cruising speeds due to more High engine RPM and generate more gas blowbies.Therefore, this improved Pcv valve only relies upon engine vacuum, and spring biasing limits Flowing device does not have the ventilation for optimizing gas blowby from crankcase to inlet manifold, be particularly vehicle constantly change speed situation (such as City drives or freeway traffic stop and start).

One critical aspects of crankcase ventilation are that engine vacuum changes according to engine load rather than engine speed, and Changed according to engine speed rather than engine load to the changing unit of air leak amount.For example, when engine speed keeps relatively permanent Periodically (such as at the uniform velocity dally or drive), engine vacuum higher.Therefore, (it is probably 900 rpms when engine idling (rpm)) the engine vacuum capacity presented is substantially with when engine at the uniform velocity cruises on a highway (such as 2500 to 2800rpm Between) present engine vacuum capacity it is identical.The speed that 2500rpm produces gas blowby is far above 900rpm.But spring biasing PCV Valve cannot be with respect to the gas blowby producing rate variance between 2500rpm and 900rpm, because spring biasing Pcv valve different is drawn at these The pressure difference held up between the inlet manifold born under speed and crankcase is similar.Spring is only in response to air pressure change, and air pressure change is The function of engine load rather than engine speed.When for example accelerating or climbing the mountain, engine load usually increases.With vehicle plus Speed, the increase of gas blowby output, but engine vacuum is reduced due to the engine load of increase.Therefore it is inclined in acceleration period, spring Insufficient gas blowby can be released from crankcase by putting Pcv valve.This spring biasing Pcv valve system can not be put based on gas blowby output Go out gas blowby, because spring is only in response to engine vacuum.

The United States Patent (USP) 5 of Collins, 228,424, its content is incorporated herein by reference, and is two-level spring biasing Pcv valve Example, adjust the gas blowby from crankcase to inlet manifold.Specifically, Collins, which is disclosed, wherein has two disk PCV Valve, to adjust the air-flow between crankcase and inlet manifold.First disk wherein has one group of hole, and be arranged on ventilation hole with Between second disk.The hole for being sized such that the first disk of covering of second disk.When existing seldom or there is no during vacuum, second Disk is held against the first disk, causes two disks to prop up ventilation hole.It is new as a result, seldom air-flow is allowed through PCV Valve.The engine vacuum of increase promotes disk to overcome spring and away from ventilation hole, thus allows more gas blowbies to flow through PCV from crankcase Valve returns to inlet manifold.Engine vacuum only exists so that at least the second disk leaves the first disk so that a small amount of gas blowby from Engine crankcase gives off by the hole of above-mentioned first disk.No matter when damper positions indicate engine with low speed, travel at the uniform speed (such as idle running), the first disk usually generally covers ventilation hole.Once vehicle accelerates, the first disk can be moved away from ventilation hole, with Lifting gas blowby leaves the speed of crankcase.When damper positions instruction engine accelerating or with higher when traveling at the uniform speed, first Disk can also be moved away from ventilation hole.The positioning of first disk is based primarily upon damper positions, and the positioning of the second disk is based primarily upon Vacuum pressure between inlet manifold and crankcase.But gas blowby output be not merely based on vacuum pressure, damper positions or its Combination.On the contrary, gas blowby productivity is based on a large amount of different factors, including engine load.Therefore, when engine load is in similar wind When changing at door position, the Pcv valve of Collins also deficiently discharges the gas blowby from crankcase to inlet manifold.

The maintenance of Pcv valve system is important and relatively simple.Lubricating oil must be regularly replaced, is pushed away with removing with the time Shifting is trapped in noxious pollutant therein.Appropriate intervals (usually every 3000 to 6000 miles) can not more oil change may cause Pcv valve system is deposited thing pollution.The Pcv valve system of blocking will eventually damage engine.Assuming that profit is more exchanged with appropriate frequency Lubricating oil, Pcv valve system should keep clear to engine life.

Accordingly, there exist problems with：There is no the crankcase ventilation system available for diesel engine, which provides gas blowby mistake Filter and the controlled ventilation of gas blowby, to be recycled by the inlet manifold of diesel engine.The present invention meets these demands and provides other phases The advantage of pass.

The content of the invention

The present invention is directed diesel engine pollution control system.The system is included with the song being adapted for from diesel engine Axle box releases the Pcv valve of the entrance and exit of gas blowby.Further include the oil eliminator with entrance and top exit and outlet at bottom. The entrance is fluidly coupled to the crankcase.The outlet at bottom is fluidly coupled to the refluxing opening of crankcase, and top exit fluid coupling It is bonded to the Pcv valve.Pcv valve is fluidly coupled to the inlet manifold on diesel engine by gas blowby pipeline.Gas blowby sensor is embedding Enter entrance, the top exit or gas blowby pipeline of oil eliminator onto oil eliminator.Gas blowby sensor measures gas blowby state in real time, Including gas blowby pressure, gas blowby temperature, gas blowby component or gas blowby fluid flow rate.Controller is electrically connected to gas blowby sensor and Pcv valve.Control Device processed is selectively adjusted unlatching/closed mode of Pcv valve, adjustably to increase or reduce the gas blowby from crankcase Fluid flow rate.

Oil eliminator preferably includes multiple permeability stratum reticulares, is adapted for gas blowby being divided into fuel vapo(u)r and oil droplet.It is multiple to ooze Permeability stratum reticulare preferably has different size or measurement, and is made of metal.Preferred material for construction includes steel, stainless Steel, aluminium, copper, brass or bronze.Multiple stratum reticulares can all be formed by identical material or different metal materials construction.

On the one hand controller is preferably wireless with the other hand being electrically connected between gas blowby sensor and Pcv valve.This Kind wireless connection can pass through Wi-Fi, radio, ultrasonic wave, infrared or SMS communication method.

Pcv valve and oil eliminator can be provided separately or form each other entirety so that the top exit of oil eliminator is The entrance of Pcv valve.Oil strainer is preferably provided between the outlet at bottom of oil eliminator and the refluxing opening of crankcase, and and they Fluidity couples.Multiple oil eliminators can be arranged in systems in parallel or series.Gas blowby pipeline can be with fluidity coupled to entrance Primary fuel lines in diesel engine.Oily accumulator can also be arranged between oil strainer and crankcase refluxing opening, and with Their fluidities couple.

The adjusting of unlatching/closed mode of Pcv valve can be realized using various forms of aperture control technologies.Pcv valve Electromagnetism aperture control mechanism, inductive fields aperture control mechanism or optical fiber aperture control mechanism can be utilized, substitutes electromagnetic valve mechanism. In addition, controller and gas blowby sensor can utilize superconductor substitution wiring and IC chip group.

The method of pollution for controlling diesel engine comprises the following steps：Release and alter from the crankcase of diesel engine Gas；Sensing gas blowby state in real time, including air pressure, temperature, component or flow rate；The gas blowby state in real time is responded, adjusts Pcv valve Unlatching/closed mode；Adjust the gas blowby fluid flow rate of the gas blowby from the crankcase；Gas blowby is divided into fluid oil and fuel steams Gas；Fluid oil is returned into the crankcase；And fuel vapo(u)r is recycled to the inlet manifold of the diesel engine.This method exists Before the return to step, the step of can further comprising filtering the fluid oil.This method may also include before the recycling step The step of mixing the fuel vapo(u)r and alternative fuel.

According to describing in more detail below, consider with reference to appended attached drawing, other feature and advantage of the invention will become Obtain it is clear that wherein attached drawing illustrates the principle of invention by exemplary forms.

Brief description of the drawings

Appended attached drawing illustrates the present invention.In the accompanying drawings：

Fig. 1 is the schematic diagram exemplified with the pollution control equipment for diesel engine, which is coupled to feature The controller of multiple sensors and Pcv valve；

Fig. 2 is the schematic diagram exemplified with the general function of Pcv valve, and the Pcv valve is together with diesel engine；

Fig. 2A is the schematic diagram exemplified with the general function of Pcv valve, the Pcv valve and diesel engine and embedded type sensor Together；

Fig. 3 is the perspective view for the Pcv valve being used together with diesel engine pollution control system；

Fig. 4 is the exploded perspective view of the Pcv valve of Fig. 3；

Fig. 4 A are the exploded perspective views of the alternate embodiment of Pcv valve, which includes the aperture control technology substituted；

Fig. 5 is the part exploded perspective view of the Pcv valve of Fig. 4, exemplified with air flow restrictors component；

Fig. 6 is the part exploded perspective view of the Pcv valve of Fig. 4, exemplified with the partial illustration of air flow restrictors；

Fig. 7 is the Pcv valve cross-sectional view that 7-7 is intercepted along the line of Fig. 3, exemplified with no air-flow；

Fig. 8 is the Pcv valve cross-sectional view that 8-8 is intercepted along the line of Fig. 3, exemplified with restricted gas flow；

Fig. 9 is another cross-sectional view of Pcv valve that 9-9 is intercepted along the line of Fig. 3, exemplified with complete air-flow；

Figure 10 is exemplified with the Pcv valve and the schematic diagram of oil strainer in a series of containers；

Figure 11 is the perspective view of the container containing Pcv valve and oil strainer；

Figure 12 is the partial enlarged view exemplified with the container top of draft tube liner mouth, Pcv valve and exhaust outlet；

Figure 13 is the partial enlarged view exemplified with the container bottom of oil reflux, bottom cover and side folder；

Figure 13 A are the partial exploded views exemplified with the container bottom of oily reflux, bottom cover, packing ring and side folder；

Figure 14 is the container partial cross section view exemplified with the Pcv valve in container and web filter layer；

Figure 15 is the container partial cross section view exemplified with the alternate embodiment of the web filter layer in container；

Figure 16 is that the alternate embodiment for showing diesel engine pollution control system general function on diesel engine is shown It is intended to；

Figure 17 is the schematic diagram for the alternate embodiment for showing the diesel engine pollution control system on diesel engine；

Figure 17 A are the schematic diagrames for the alternate embodiment for showing the diesel engine pollution control system on diesel engine, There is embedded type sensor before the entrance of oil eliminator；

Figure 17 B are the schematic diagrames for the alternate embodiment for showing the diesel engine pollution control system on diesel engine, There is embedded type sensor after the top exit of oil eliminator；

Figure 18 is the perspective view of the alternate embodiment of the oil eliminator of the present invention；And

Figure 19 is the explosive view of the oil eliminator of Figure 18.

Embodiment

As shown in the figure, for the purpose of illustration, the pollution control system that the present invention is used for diesel engine is overall with reference numeral 10 Instruction.In Fig. 1, the pollution control system for diesel engine 10 is totally illustrated as, with controller 12, being preferably mounted at automobile Under 16 hood 14.Controller 12 is electrically coupled to any one in multiple sensors, these multiple Sensor monitorings are simultaneously Measure the performance of real-time running state and automobile 16.Controller 12 is by using the digital control adjusting internal combustion engine of Pcv valve 18 Engine vacuum, so as to adjust the flow rate of gas blowby.Controller 12 receives input, sensor in real time from sensor may include engine temperature Spend sensor 20, battery sensor 24, Pcv valve sensor 26, engine RPM sensor 28 and acceleration transducer 30 and row Gas sensor 32.Controller 12 is used to adjust Pcv valve 18 and oil strainer/separator 19 from the sensor 20-32 data obtained, Following article is described in more detail.

Alternatively, controller 12 can receive the input of the embedded type sensor 192 in connecting tube, embedded type sensor 192 such as in the draft tube liner 74 before or after oil eliminator or in gas blowby pipeline 41 (Fig. 2A, 17A and 17B).Passing through will Embedded type sensor 192 is placed in connecting tube, opposite with the miscellaneous part of crankcase, inlet manifold or engine, and controller 12 connects More accurate and more direct reading is received, the switching function of Pcv valve 18 is preferably responded so as to generate, following article is more fully retouched State.Embedded type sensor 192 may include pressure sensor, temperature sensor, gas blowby analytical instrument and/or fluid flow rate sensing Device.

The other equipment of the also controllable car engine of controller 12.12 controllable liquefaction of controller leaves oil strainer or oil From the flow of device 19.Controller 12 can also adjust engine temperature, and inflates regulation room and be designed as by inflating and being reintroduced back to Fuel combination before fuel, so as to be adjusted back to the fuel of burning line or vacuum manifold.Controller 12 can also adjust smoke evacuation system System, to prevent 10 failure of pollution control system --- smoke evacuation system triggering engine recovers back to OEM systems, i.e., typical open ventilation Pipe.Controller 12 can also provide alarm for engine operation person.Alarm can flicker LED readers, so that be just that actually sensed Engine status is given a report and the reception alarm once breaking down.The alarm of such as alarm bell or illumination sign can pass on sensing The state arrived.Controller 12 is fully able to utilize flash memory or other similar device upgrades.It means that same 12 He of controller System 10 can substantially operate on engine any type of, using different type fuel.Pollution control system 10 is adapted to In any internal combustion engine.For example, pollution control system 10 can be with gasoline, methanol, diesel oil, ethanol, compressed natural gas (CNG), liquid Propane (LPG), hydrogen, the engine based on alcohol are used together, or are substantially based on combustible gas and/or steaming with any other The engine of gas is used together.This is configured including two-stroke and four stroke IC engines and whole optical mediums with heavy at the same time.

Hardwire is instead of, controller 12 can utilize wireless network connection, such as using the Wi-Fi of pulsewidth modulation, nothing Line electricity, ultrasonic wave, infrared, SMS or similar transmitting-receiving telemetries or remote control.(see Fig. 1, exemplified with controller 12 and Pcv valve 18 Antenna).The rigid line between controller 12 and the miscellaneous part of pollution control system 10 is substituted to connect, promotion system 10 is any Installation in the engine of size and the compartment of arbitrary size.Wireless connection realizes the installation of all parts of system 10, and nothing Wired connection need to be extended across to engine or through engine cabin.

Fig. 2 is the schematic diagram exemplified with the running of the diesel engine pollution control system 10 for diesel engine 36.Such as Fig. 2 institutes Show, Pcv valve 18 and oil eliminator 19 are arranged between the crankcase 35 of engine 36 and inlet manifold 38.During operation, air inlet Manifold 38 receives air by air line 42.Air filter 44 can be arranged on air line 42 and admission line 46 it Between, for filtering the fresh air into pollution control system 10.As piston 50 declines in cylinder 48 from top dead centre, air inlet discrimination The air of pipe 38 is transferred to piston cylinder 48.As piston 50 declines, vacuum is formed in combustion chamber 52.Therefore, input cam axis 54 are rotated with the half of 34 speed of bent axle, are designed as opening transfer valve 56, inlet manifold 38 is limited by engine vacuum.Cause This, combustion chamber 52 is pumped into by air from inlet manifold 38.

Once piston 50 is located at the bottom of piston cylinder 48, vacuum effect terminates, and no longer by air from inlet manifold 38 It is pumped into combustion chamber 52.At this time, piston 50 starts to move back up piston cylinder 48, and the air of combustion chamber 52 is changed into being compressed.Then, Fuel directly injects combustion chamber 52 from burning line 40.This injection is further empty by more compressions from compressed-air line 58 Gas aids in.With the air in compression and combustion room 52, its heating.It means that in the compressed air of fuel injection heating Light afterwards.This is the main distinction between diesel engine and gasoline engine.Petrol engine relies on or piston provides ignited fuel, And diesel engine only needs heat and compression.

Fuel/air mixture rapid expanding is ignited in combustion chamber 52, causes the piston 50 in cylinder 48 to sink.In burning Afterwards, exhaust cam shaft 60 opens air bleeding valve 62, to allow burning gases to escape exhaust line 64 from combustion chamber 52.Usually burning During circulation, the excessive portion of exhaust --- " gas blowby " --- skims over a pair of pistons ring 66 installed in 50 head 68 of piston.

These gas blowbies enter crankcase 35 with pressure high temperature hot gas.As the time elapses, such as hydrocarbon in these gas blowbies Class, carbon monoxide, the harmful exhaust gas and particulate matter of nitrous oxide and carbon dioxide can condense or are precipitated out from gaseous state, and And be covered in inside crankcase 35, and mixed with oil 70, lubricate the structure in crankcase 35.Diesel engine pollution control system 10 It is designed as recycling these gas blowby contents from crankcase 35 and returns in burning charge, to be burnt by engine 36.This passes through Realized using the pressure difference between crankcase 35 and inlet manifold 38.In operation, gas blowby leaves pressure phase by ventilation hole 72 To higher crankcase 35, and through draft tube liner 74, oil eliminator 19, Pcv valve 18, then by burning line 40 or alter Gas pipeline 41 returns to engine 36.Burning line 40 receives purer fuel vapo(u)r, and less pure gas blowby is from crankcase 35 Inlet manifold 38 is discharged into by gas blowby pipeline 41.The controller 12 of this process as shown in Figure 1 carries out digital regulated.Into fuel The fuel vapo(u)r of pipeline 40 can pass through fuel filter before engine 36 is reintroduced back to.

The Pcv valve 18 of Fig. 3 is generally electrically coupled to controller 12 by a pair of electric connecting pieces 78.Controller 12 is at least through electricity 78 part of connector adjusts the air leak amount for flowing through Pcv valve 18.In figure 3, Pcv valve 18 includes coating the one of outer rigid housing 82 Partial rubbery outer cover 80.Connecting line 78 is extended out from shell 82 by hole (not shown) therein.Preferably, shell 82 It is monomer, and including induction port 84 and vent ports 86.In general, the current limliting in 12 operation housing 82 of controller Device, for adjusting the gas blowby speed for entering induction port 84 and leaving vent ports 86.

Fig. 4 is with exploded perspective view exemplified with Pcv valve 18.Rubbery outer cover 80 cover end cap 88, end cap 88 generally seal to Shell 82, thus wraps up electromagnetic valve mechanism 90 and air flow restrictors 92.Electromagnetic valve mechanism 90 includes being arranged in solenoid valve 96 Plunger 94.Connecting line 78 operates solenoid valve 96 and passes through end cap 88 by hole 98 therein.Similarly, rubbery outer cover 80 includes hole (not shown), to allow connecting line 78 to be electrically coupled to controller 12 (Fig. 2).

Electromagnetic valve mechanism 90 is instead of, Pcv valve 18 can use electromagnetism aperture control piece, inductive fields control piece or light on the contrary Fine control piece.The aperture control technology 194 of this replacement can be that Pcv valve 18 provides more accurately unlatching/pass as shown in Figure 4 A Close, to improve the overall operation of pollution control system 10.

In general, the engine vacuum (Fig. 2) presented in inlet manifold 38 causes gas blowby to be drawn through from crankcase 35 The induction port 84 of Pcv valve 18 and leave vent ports 86 (Fig. 4).Air flow restrictors 92 shown in Fig. 4 be it is a kind of adjust from Crankcase 35 is discharged into the mechanism of the air leak amount of inlet manifold 38.Adjust gas blowby flow rate to be particularly advantageous, because contamination control System 10 can in the speed that gas blowby output higher period increase gas blowby is released from crankcase 35, and gas blowby output compared with The speed that gas blowby is released from crankcase 35 is reduced between lowstand.Controller 12 is coupled to multiple sensor 20-32, to monitor automobile 16 Whole efficiency and running, and real-time operation Pcv valve 18, gas blowby is maximized with the measurement obtained according to sensor 20-32 Recycling.

The operation characteristic and output of gas blowby are for each engine and each engine are installed on each automobile therein It is exclusive.Pollution control system 10 can in the factory or the later stage manufacture when install, to maximize automobile fuel efficiency, lower Noxious emission, oil recovery and other gases and eliminate the pollutant in crankcase.The purpose of pollution control system 10 is base It is strategic to release gas blowby from crankcase 35 in gas blowby output, filter gas blowby and recycle it is any can from gas blowby output Oil and fuel.Therefore, the real-time survey that controller 12 is obtained based on engine speed and other operation characteristics and by sensor 20-32 Amount, it is digital regulated and control Pcv valve 18.Pollution control system 10 can be integrated into stationary engine, for producing energy or being used for Industrial use.

Particularly, based on other of engine speed and automobile operation characteristic release gas blowby, reduce hydro carbons, carbon monoxide, Nitrous oxide, carbon dioxide and granular material discharged total amount.Pollution control system 10 passes through these gas that burn in burn cycle Body and particulate matter recycle them.Discharged there is no a large amount of pollutants from engine by being vented.Therefore, pollution control system 10, which can be directed to each engine, reduces air pollution up to 40 to 50 percent, increase per gallon output up to percent 20 to 30, increase horsepower performance, reduce engine wear (due to low-carbon hold-up therein) and reduce the frequency more changed oil close to 10 Times.Consume about 8.7 hundred million gallons of oil daily in view of the U.S., recycle gas blowby by using pollution control system 10 and reduce percentage 15, change into and only save about 1.3 hundred million gallons of oil daily in the U.S..In the whole world, nearly 3,300,000,000 gallons of oil are consumed daily, And this will cause to save about 500,000,000 gallons of oil daily.

In one embodiment, adjusted into the air leak amount of the induction port 84 of Pcv valve 18 by air flow restrictors 92, always Body is as shown in Figure 4.Air flow restrictors 92 include the bar 100 with rear portion 102, middle part 104 and front portion 106.The diameter of front portion 106 It is slightly lower than rear portion 102 and middle part 104.Preceding spring 108 is arranged concentrically on middle part 104 and front portion 106, is included in bar 100 On front 110.Preceding spring 108 is preferably wind spring, reduces diameter from induction port 84 to front 110.It is recessed to enclose 112 by rear portion 102 separate with middle part 104, and provide rear retaining ring 114 and can be attached to the point of bar 100.The diameter of preceding spring 108 should be near Like or be slightly less than the diameter of rear retaining ring 114.Spring 108 before 114 1 side engagement of retaining ring afterwards, then spring 116 is attached in solenoid valve 96 The diameter for being similar to or being slightly less than rear 114 diameter of retaining ring is closely come to a point into from wider diameter.Spring 116 is preferably rolled up afterwards Spring, and wedge between the front of solenoid valve 96 118 and rear retaining ring 114.Front portion 106 further includes zigzag circle 120, there is provided preceding button The attachment point of ring 122.The diameter of preceding retaining ring 122 is less than the diameter of spring 108 before taper.Preceding retaining ring 122 fixes preceding disk 124 It is maintained on the front portion 106 of bar 100.Therefore, before preceding disk 124 is regularly wedged between retaining ring 122 and front 110.Preceding disk 124 internal diameters are configured to slidably engage the front portion 106 of bar 100.Preceding spring 108 is sized such that engagement rear disk 126, following article It is described.

The control of disk 124,126 enters induction port 84 and leaves the air leak amount of vent ports 86.Figures 5 and 6 are exemplified with dress It is fitted on electromagnetic valve mechanism 90 and the air flow restrictors 92 outside rubbery outer cover 80 and shell 82.Therefore, plunger 94 is assemblied in In the rear portion of solenoid valve 96, as shown here.Connecting line 78 is coupled to solenoid valve 96, and is delivered to solenoid valve 96 by adjusting Electric current controls position of the plunger 94 in solenoid valve 96.Increase or reduction are correspondingly increased or subtracted by the electric current of solenoid valve 96 The small magnetic field wherein produced.Magnetized plunger 94 is by sliding into or drawing change of the solenoid valve 96 come response magnetic field.Increase passes through company The electric current that wiring 78 is delivered to solenoid valve 96 increases magnetic field in solenoid valve 96, and causes magnetized plunger 94 in solenoid valve 96 Further sink.Magnetic field therein is reduced by the electric current of connecting line 78 supplied to solenoid valve 96 on the contrary, reducing, and causes magnetic Change plunger 94 therefrom to skid off inside solenoid valve 96.As will be shown in more detail herein, positioning of the plunger 94 in solenoid valve 96 The air leak amount of induction port 84 may be entered in any given time by least partially determining.This passes through plunger 94 and bar 100 And the corresponding, interaction of preceding disk 124 that is fixed thereon is realized.

The air flow restrictors 92 that are closed of Fig. 5 particular instantiations.102 outside diameter of rear portion of bar 100 is similar to electromagnetism The internal diameter size of valve 96.Therefore, bar 100 can slide in solenoid valve 96.As Fig. 7-9 more specifically show, due to rear portion 106 with The engagement of plunger 94, position of the bar 100 in shell 82 depend on the position of plunger 94.As shown in figure 5, rear spring 116 compresses Between the front of solenoid valve 96 118 and rear retaining ring 114.Before rear disk 126 is pressed in by this therewith on disk 124.Similarly, preceding bullet Spring 108 is compressed between rear retaining ring 114 and rear disk 126.This realizes the separation of rear disk 126 and preceding disk 124, such as Fig. 6 It is shown.

As Fig. 7-9 preferably shows and (intercepted along line 7-7,8-8 and 9-9 of Fig. 3), preceding disk 124 is less than foot including diameter The extension 130 of 132 diameter of portion.The foot 132 of rear disk 126 is similar to the diameter of spring 108 before taper.In this way, preceding spring 108 are assemblied on the extension 130 of rear disk 126, for engaging the plane of its foot 132 being relatively large in diameter.Rear disk 126 Internal diameter is similar to the 104 outside diameter size of middle part of bar 100, which is less than the diameter at middle part 104 or rear portion 102.It is preceding with regard to this Disk 124 is in the front portion 106 of bar 100, the lock into place between front 110 and preceding retaining ring 122.Therefore, as bar 100 is coupled to Plunger 94, the position of preceding disk 124 depend on the position of bar 100.Plunger 94 is slided into or skidded off in solenoid valve 96, depending on by The magnitude of current that connecting line 78 conveys, as described above.

Fig. 6 is exemplified with Pcv valve 18, wherein the increase vacuum produced between crankcase 35 and inlet manifold 38 is round after causing Disk 126 is retracted, away from induction port 84, so as to allow air to flow through therebetween.In the case, it is applied to drawing on disk 126 Hold up vacuum pressure and must pull against the opposite force that preceding spring 108 applies.Therefore, a small amount of gas blowby can pass through a pair of preceding disk 124 Hole 134 passes through Pcv valve 18.

The function of the Pcv valve 18 according to pollution control system 10 is more particularly exemplified in Fig. 7-9.Fig. 7 is exemplified with pass The Pcv valve 18 of closed state.Here, no gas blowby can enter induction port 84.As shown in the figure, preceding disk 124 is flush against limit The flange 136 being scheduled in induction port 84.The hole 134 of disk 124 before 132 diameter of foot of rear disk 126 spreads all over and coats, with Prevent any air-flow from passing through induction port 84.In this case, plunger 94 is arranged in solenoid valve 96, thus presses to bar 100 Induction port 84.Afterwards thus spring 116 is compressed between the front of solenoid valve 96 118 and rear retaining ring 114.Similarly, preceding spring 108 It is compressed between the foot 132 of rear retaining ring 114 and rear disk 126.

Fig. 8 is to be more than to be applied with by after by preceding spring 108 exemplified with the vacuum pressure for applying crankcase by inlet manifold State embodiment of the disk 126 flush against the pressure of preceding disk 124.In the case, rear disk 126 can be along bar 100 Outside diameter slides, the hole 134 of disk 124 before Open from This Side.Limited amount gas blowby is allowed to enter Pcv valve 18 by induction port 84, As indicated by direction arrow therein.Certainly, gas blowby leaves Pcv valve 18 by induction port 84, such as direction arrow institute therein Instruction.In the state shown in fig. 8, as preceding disk 124 keeps being seated in flange 136, gas blowby stream is still limited.Therefore, only Only limited air-flow can pass through hole 134.Increase engine vacuum result increases the air pressure being applied on rear disk 126.Therefore, Further spring before compression so that rear disk 126 is persistently moved away from preceding disk 124, thus generates the current path of bigger, to allow Extra gas blowby effusion.Moreover, bar 100 can be placed in Pcv valve 18 by the plunger 94 in solenoid valve 96, with spring 108, Apply more or less pressure on 116, thus limit or permission air-flow is by induction port 84, this is determined by controller 12.

Fig. 9 is exemplified with another state, wherein by varying the electric current of connecting line 78 is flowed through, plunger of retracting from solenoid valve 96 94, it is allowed to which extra air-flow flows through induction port 84.Reduce and flow through the corresponding magnetic field that the electric current reduction of solenoid valve 96 wherein produces, And magnetized plunger 94 is allowed to retract.Therefore, bar 100 is retracted together with plunger 94, away from induction port 84.Disk before this allows 124 leave flange 136, thus allow extra air-flow to enter induction port 84 around the outside diameter of preceding disk 124.Certainly, by into Gas opening 84 into air-flow and pass through vent ports 86 discharge air-flow increase allow from crankcase 35 to inlet manifold 38 Gas blowby discharge increase.In one embodiment, plunger 94 allows bar 100 to retract always from shell 82 so that preceding disk 124 No longer limited by induction port 84 and the air-flow discharged by vent ports 86 with rear disk 126.This is in high engine RPM and height It is special satisfaction needs under engine load, wherein increased air leak amount is produced by engine.Engine load is produced compared with RPM The more reliable index of air leak amount.In addition, stationary engine, i.e., generator or it is connected to power train, is drawn with those of constant RPM operatings Hold up.Therefore, system 10 or Pcv valve 18 be preferably based on the load condition that senses or by periodically open/stop circulation (start 2 minutes- Shut down 2 minutes) it is controlled.Certainly, spring 108,116 can according to specific automobile distinguish fix, Pcv valve 18 with they one Rise and need to be incorporated into pollution control system 10.

Controller 12 efficiently controls plunger 94 by increasing or reducing the electric current of the connecting line 78 flowed through in solenoid valve 96 Placement wherein.Controller 12 may include any one of various electronic circuits in itself, including switch, timer, timer, Relay tinner or other vehicle control modules known in the art.Controller 12 respond these control modules in one or Multiple runnings, operates Pcv valve 18.For example, controller 12 may include the Baker Electronix of by Virginia The RWS window switch modules of Beckly, W. supply.RWS modules are electric switches, are activated on pre-selected engine RPM, and in higher Pre-selected engine RPM on inactivate.RWS modules are considered " window switch ", because activating output during RPM windows.RWS moulds Block can for example operate together with engine RPM sensor 28, to modulate the gas blowby airflow rate released from crankcase 35.

Preferably, when setting position of the plunger 94 in solenoid valve 96, RWS modules are used using most of tachometers Standard coil signal operate.Automobile rotational speed meter is the equipment of real-time measurement engine RPM.In one embodiment, gas blowby is worked as When output is minimum, RWS modules can activate the plunger 94 in solenoid valve 96 under low engine RPM.Here, plunger 94 is by bar 100 push induction port 84 to so that preceding disk 124 is seated on flange 136, overall as shown in Figure 7.With regard to this, Pcv valve 18 is from song Axle box releases a small amount of gas blowby to inlet manifold by the hole 134 of preceding disk 124, even if engine vacuum is high level.High engine is true Sky forces gas blowby thus to force rear disk 126 away from preceding disk 124, spring 108 before compression by hole 134.In idle running, RWS Thus module activation solenoid valve 96 prevents large quantity of air in engine crankcase and air inlet to prevent preceding disk 124 from leaving flange 136 Flowed between manifold.This is special satisfaction needs under low engine RPM, because even engine vacuum is relatively high, is produced in engine Raw air leak amount is relatively low.Obviously, controller 12 can adjust Pcv valve using the miscellaneous part of pollution control system 10 at the same time 18, for setting the gas blowby air-flow flow rate released from crankcase 35.

Gas blowby output increases in acceleration period, during engine load increases and during higher engine RPM.Cause This, the electric current for being delivered to solenoid valve 96 can be closed or reduced to RWS modules so that plunger 94 is retracted from solenoid valve 96, thus will Preceding disk 124 leaves flange 136 (Fig. 9) and allows a greater amount of gas blowbies to be discharged into inlet manifold 38 from crankcase 35.These Function can occur under selected RPM or being pre-programmed into the given range of RWS moulds selected RPM in the block.When automobile omits During other pre-selected RWS (such as higher RPM), RWS modules can reactivate, and thus plunger 94 is re-engaged in electricity In magnet valve 96.In an alternative em bodiment, the variation of RWS modules can be used for optionally walking plunger 94 from solenoid valve 96 Into out.For example, under 900rpm, the electric current for being transported to solenoid valve 96 initially can be so that plunger 94 engages preceding disk 124 To the flange 136 of induction port 84.Under 1700rpm, RWS modules can activate the first order, wherein being transported to solenoid valve 96 Electric current reduces half.In the case, plunger 94 is retracted half from solenoid valve 96, thus partly opens air inlet for gas blowby stream Aperture 84.Such as when engine RPM reaches 2500, RWS modules can eliminate the electric current for being transported to solenoid valve 96 so that plunger 94 It is fully retracted from solenoid valve 96, thus fully opens induction port 84.In this case, it is therefore particularly preferred that preceding disk 124 And rear disk 126 no longer limits the air-flow between induction port 84 and vent ports 86.Rank by engine RPM or other parameters and The calculating that controller 12 carries out, and adjusted based on the reading from sensor 20-32.

Controller 12 can be programmed with pre-programmed after installation or otherwise upgrading or flash memory, specific to meet Automobile or onboard diagnostics (OBD) specification.In one embodiment, controller 12 is equipped with self-study software so that switch is (in RWS In the case of module) it is adapted for activating or inactivating the plunger 94 in solenoid valve 96, or stepping solenoid valve 96 with Best Times Position, thus optimally lifts fuel efficiency and reduces air pollution.In the especially preferred embodiments, controller 12 be based on by The real-time measurement that sensor 20-32 is obtained, optimizes the discharge of gas blowby.For example, controller 12 is it was determined that the utilization of automobile 16 comes from The harmful exhaust gas of the feedback discharge increase of exhaust sensor 32.In the case, controller 12 can activate plunger 94 from electromagnetism Withdrawn from valve 96, to release extra gas blowby from crankcase, thus reduce and pass through (being measured by exhaust sensor 32) automobile The contaminant capacity of 16 discharge discharges.

In another embodiment, controller 12 is equipped with LED, LED flicker instruction electric power, and controller 12 etc. is waiting Spasm holds up velocity pulse.LED can be additionally used in measurement controller 12 whether normal operation.LED flickers, until automobile reaches specified RPM, controller 12 change the electric current that solenoid valve 96 is transported to by connecting line 78 in the case where this specifies RPM.In particularly preferred reality Apply in example, controller 12 keeps being transported to the magnitude of current of solenoid valve 96, until engine RPM declines percent the 10 of activation point.This Kind mechanism is known as hysteresis phenomenon.Hysteresis phenomenon is implemented into pollution control system 10, when engine RPM is being set within opposite short-term When definite value jumps up and down, pulse or known vibration are opened/stop for eliminating.Hysteresis phenomenon can also be implemented into above-mentioned based on electricity The step-by-step system of son.

Controller 12 may be fitted with deferred action (On Delay) timer, such as by Instrumentation＆ The On Delay timers of the KH1Analog series of Control Systems, Inc.of Addison, Ill manufacture.Delay meter When device particularly preferred for during initial start.Under low engine RPM, seldom gas blowby is produced.Therefore, delay timer can collect Into into controller 12, with the activation of electro-magnetic time-delay valve 96 and corresponding plunger 94.Preferably, delay time ensures that plunger 94 is kept It is fully inserted in solenoid valve 96 so that preceding disk 124 keeps entering induction port 84 flush against flange 136, thus limitation Gas blowby throughput.Activated after the duration (such as 1 minute) that delay timer may be set to be to set in disk 124,126 Any one unclamped from induction port 84.Alternatively, delay timer can be by controller 12 according to by engine temperature sensor 32 The engine temperature that measures, by engine RPM sensor 28 or acceleration transducer 30, battery sensor 24 or exhaust sensor 32 Any one engine RPM measured set.Delay may include the variable range according to any of above-mentioned reading.Variable timing Device can also be integrated with RWS switches.

Controller 12 is preferably mounted to inside 16 hood 14 of automobile, as shown in Figure 1.Controller 12 can use installation set Part wraps up so that user can be attached controller 12, as shown in the figure.In concerned power, controller 12 is by any appropriate 12 volts Breaker is powered.External member with controller 12 may include adapter, one of them 12 volts of breaker can be removed from circuit board, And replaced with adapter (not shown), which is unidirectionally connected to the connecting line 78 of Pcv valve 18, so installation pollution control The user of system 10 processed is unable to the line between Switch Controller 12 and Pcv valve 18.Controller 12 can also be via Remote control Or handheld unit carrys out radio access, with access or download stored or calculated by controller 2 measure and calculate in real time, store number According to or other information reading.

In the another aspect of pollution control system 10, controller 12 is based on engine-operated frequency and adjusts Pcv valve 18.For example, As engine crosses over resonant frequency, controller 12 can activate or deactivation plunger 94.In a preferred embodiment, controller 12 separates It is all from crankcase 35 to the air-flow of inlet manifold 38, until engine is crossed over after resonant frequency.As described above, controller 12 is also Pcv valve 18 can be adjusted based on the engine frequency sensed using pre-programmed as under various operating statuses.

Moreover, pollution control system 10 can be used for various engines, including diesel car engine.Contamination control system System 10 can be also used for larger stationary engine or for ship or other heavy-duty machineries.In addition, pollution control system 10 can wrap Include one or more controllers 12 and the one or more Pcv valves 18 combined with multiple sensors, these sensors measurement engine Or the performance of vehicle.As detailed above, pollution control system 10 is used in automobile correlation, this is only to be preferable to carry out Example.Certainly, pollution control system 10 has been applied on various subjects, wherein using the incendivity with exhaust generation Material, exhaust can be recycled and reused.

In the another aspect of pollution control system 10, controller 12 can adjust the control of Pcv valve 18.The master of Pcv valve 18 Function is wanted to be to control the engine vacuum capacity between crankcase 35 and inlet manifold 38.Positioning of the plunger 94 in solenoid valve 96 is big The airflow rate for the gas blowby that inlet manifold 38 is advanced to from crankcase 35 is defined on body.In some systems, Pcv valve 18 can be with Air-flow is adjusted, will not be down to according to original equipment manufacturer with the relative pressure ensured between crankcase 35 and inlet manifold 38 (OEM) below specific threshold.If controller 12 fails, the acquiescence of pollution control system 10 returns to OEM settings, wherein Pcv valve 18 serve as secondary check valve.10 particularly preferred aspect of pollution control system is, by including can flash upgrade controller 12, With the compatibility of current and future OBD standards.Moreover, the operation of pollution control system 10 does not influence current OBD and OBD-II systems The operating status of system.Controller 12 can be according to standard OBD protocol access and inquiry, and flash memory renewal can change bios, institute Keep compatible with future OBD standards with controller 12.Preferably, controller 12 operate Pcv valve 18 with adjust crankcase 35 with into Engine vacuum between gas manifold 38, thus controls airflow rate therebetween, thus optimally releases the gas blowby in system 10.

As detailed above in the another aspect of pollution control system 10, controller 12 can be for example relative to Pcv valve 18, adjust activation and/or the inactivation of operation component.It is this adjusting for example by above-mentioned RWS switch, deferred action timer or its His electronic circuit is realized, and numerical activation, inactivation or selectivity position above-mentioned control unit halfway.For example, controller 12 can optionally activate the Pcv valve time of 18 one to two minutes, and then can selectively inactivate 180 points of Pcv valve Clock.These activate/inactivate sequence can for example according to based on driving type and presetting or acquistion sequence is set.Pre-programmed Sequential can more be newly arrived change by the flash memory of controller 12.

Figure 10 is with cascade exemplified with the preferred embodiment of the present invention.Pcv valve 18 and oil eliminator 19 can be combined into One container 134, to maximize the fuel of diesel engine and oily efficiency.As shown in the figure, container 134 can be used in series.When with When the large scale industry engine of a large amount of gas blowbies can be produced in the trial employment period, this is particularly advantageous.The engine cabin of diesel engine may be too It is small and a very big container 134 cannot be accommodated.Therefore, gas blowby filtering and deflation can pass through a series of less containers 134 realize, as shown in the figure.

Figure 11-14 is exemplified with the Pcv valve 18 and oil eliminator 19 for being combined into single container 134.Figure 11 is exemplified with container 134 External view.As shown in the figure, container 134 includes the draft tube liner mouth 144 and vent ports 146 along the top of container 134.PCV The top of valve 18 also is located at the top of container 134, exposes electrical connection 78.(such as Figure 12 is preferably shown.) container 134 bottom Oily refluxing opening 138 is installed.The bottom of container 134 includes bottom cover 142 and two side folders 140.(such as Figure 13 is preferably shown.) hold The bottom cover 142 of device 134 is removable, to coordinate the filter for periodically cleaning and wherein containing.(such as Figure 13 A are preferably aobvious Show.)

The bottom open end 148 of container 134 is shown in figure 13a, with packing ring 150 and removable lid 142.Packing ring 150 are installed between 134 open end 148 of container and removable cap 142.Packing ring 150 is made of compressible material, compressible material Shi Naire's and air and liquid it is impermeable.This compressible material, which includes plastics, rubber or some other, has these The material of characteristic.The purpose including packing ring 150 is to form the sealing between container 134 and removable cap 142 on this position, Prevent oil or other pollutants from leaking out.This is necessary, because the content of container 134 is under high pressure-temperature.In order to clean Or the purpose replaced, packing ring 150 can be removable.

The draft tube liner mouth 144 of container is connected to draft tube liner 74 (Fig. 2), to receive the gas blowby from crankcase 35.Such as Shown in Figure 14, once gas blowby is discharged into container 134, it passes through a series of stratum reticulares 136.Stratum reticulare 136 is used for fuel vapo(u)r with altering The heavy oil separation contained in gas.Heavier oil droplet is precipitated to container bottom, they return to bent axle by oily refluxing opening 138 at this Case 35.Lighter fuel vapo(u)r detaches container 134 by the induction port 84 of Pcv valve 18.As described above, Pcv valve 18 is by controlling Device 12 is adjusted.Then fuel vapo(u)r returns to any one in burning line 40 or inlet manifold 38 by vent ports 146. In operation, oil eliminator 19 provides two major functions.First, the increase volume inside container 134 causes oil droplet from gaseous state It is precipitated out.Second, the stratum reticulare 136 inside container 134, which is arranged on, to condense oil droplet and capture pollutant provides surface, by This is tentatively filtered through oil therebetween.

Stratum reticulare 136 can be the oil strainer of any standard well known in the art, being capable of filter liquid state oil.It is preferred real herein Apply in example, as shown in the figure, stratum reticulare 136 is made of steel or copper wire, and provide the surface crossed by gas blowby.Stratum reticulare 136 can be with Including stainless steel, aluminium, brass or bronze, and there is different measurements.

For Figure 15 exemplified with the alternate embodiment of container 134, container 134 is particularly matching somebody with somebody containing 136 layers of metal mesh wherein Put, including the layer of different type and form.

Container 134 preferably includes the not isometric metal mesh 136 of multilayer.These 136 layers of openings by container of metal mesh End 148 is loaded into container 134.136 layers of metal mesh can be any type of metal or can be different types of metal. The metal types that can be used include but not limited to：Steel, stainless steel, aluminium, copper, brass or bronze.In operation, it is unfiltered to alter Gas is received by the gas blowby air inlet 144 of container 134.Gas blowby begins through 136 layers of circulation of metal mesh.Different pollutant and miscellaneous Matter depends on the measurement of net and the type of metal and is trapped at each layer of metal mesh 136.Larger pollutant is by larger measurement Metal mesh 136 filters.Less pollutant and impurity are filtered by finer metal mesh 136.Equally, some impurity can be received tired In certain form of metal.

As gas blowby is operated by filtering container 134, pollutant, particulate matter and impurity are captured, be left two kinds it is main Byproduct：The engine oil 152 and the fuel vapo(u)r of purification cleaned.The engine oil 152 cleaned is finally collected in 134 bottom of container Portion, it is expelled back into the crankcase 35 of engine 36 at this by oil discharge outlet 138.The combustion that the fuel vapo(u)r of purification passes through container 134 Material vapor air outlet 146 is released, and is transmitted to Pcv valve 18, to treat that the inlet manifold 38 by engine 36 recycles, in this embodiment Pcv valve 18 is separated with separator 19.

Although oil discharge outlet 138 is connected to crankcase 35, system 10 preferably includes check-valves 190.Check-valves 190 is designed as really Protect direction of the oil without converse outflow crankcase 35.Massive diesel-fuel machine has open cycle system, it means that this oil or gas blowby are released It is put into environment, without being attached to vacuum manifold.This be for the large-scale diesel engine of such as seagoing vessel it is particularly detrimental, its Middle exhaust and other exhaust gas are poured into ocean, infringement coral reef and other marine organisms.The system 10 of the present invention closes this ring, Diesel engine is enclosed, prevents most of gas blowby (hydro carbons and particulate matter that include unspent fuel, exhaust gas) to be discharged into environment In.In relatively large engine, multiple check-valves 190 be able to can be amplified to greatly very with parallel running, or single check-valves 190 More sizes.

After oil eliminator 19 is used for given amount, it is necessary that the stratum reticulare 136 that cleaning wherein contains.This By the side folder 140 at 134 bottom of dropout container, and bottom cover 142 is removed to realize.Then, stratum reticulare 136 can remove simultaneously clear It is clean.Before they are turned back in container 134, it is necessary to be immersed in again in cleansing oil.

Figure 16 is exemplified with the alternate embodiment of the diesel engine pollution control system 10 on engine 36, wherein Pcv valve 18 and oil eliminator 19 be separated component.The operation of system 10 is as in the foregoing embodiment.Pcv valve 18 and oil eliminator 19 Separation difference causes a component may not need to be replaced by another, thus reduces maintenance cost.

For Figure 17 exemplified with another alternate embodiment, wherein oil eliminator 19 is fluidly coupled to oil strainer 154.Oil Filter 154 is configured to well known to a person skilled in the art prior art oil eliminator, and performs its exemplary functions.Oil strainer 154 are fluidly coupled to oil conservator 156, oil conservator 156 be configured to the oil of specified quantitative be re-introduced to crankcase 35 it It is preceding to collect them.Oil conservator 156 can include check-valves 190 as described above.In this embodiment, the outlet of oil conservator 156 It is connected to the entrance 158 of crankcase 35.Entrance 158 can be associated with dipstick passage 160, or is connected directly to crankcase 35.Those skilled in the art will be appreciated that, any one in these additional components --- oil strainer 154, oil conservator 156 with And entrance 158, if associated with dipstick passage 160 or couple directly to crankcase 35 --- can respectively or entirety includes In pollution control system 10.

The outlet 146 of oil eliminator 19 is connected to the entrance of Pcv valve 18.The outlet of Pcv valve 18 is fluidly coupled to cartridge Line 40.It is fuel mixer 162 to be embedded into the fluid coupling between the outlet of this Pcv valve 18 and burning line 40, is configured to By extraly or substitute fuels sources 164 introduce gas blowby.It is used for the other elements of alternate embodiment, mixer as previously mentioned 162 and fuels sources 164 can include itself or combine other elements in one.

Figure 18 and 19 is exemplified with the alternative configuration for oil eliminator 19.In this embodiment, oil eliminator 19 has band There is the container 134 of top 166 and bottom 168.Be attached to container 134 is the handle 170 together with entrance 172 and outlet 174.

Figure 19 shows the oil eliminator 19 of this embodiment to explode, it is oriented the upset of Figure 18 directions.People It can be seen that handle 170 by screw 176 or other similar to attachment arrangement be attached to top 166.Be divided into inside top 166 into Oral cavity 178 and outlet plenum 180.Metal screen 182 is disposed across the opening of entrance cavity 178 and outlet plenum 180.Strainer 182 is excellent Choosing is by 184 fix in position of screw.Open cavity (not shown) is preferably included inside bottom 168, capture is configured to and is condensed from gas blowby Oil out.Bottom 168 can include steel wire 186 or other similar stratum reticulare materials, as described above.The bottom surface bag of bottom 168 Include oil discharge outlet 138 as in the foregoing embodiment.

Oil eliminator 19 further comprises the O-ring being arranged between top 166 and bottom 168 or packing ring 188.O-ring 188 seal oil eliminators 19 to prevent leaking under stress during operation.Top 166 and lower part 168 are preferably by durable but can The connection (such as screw thread couple, lug and fluting or fixed screw) of release is fixed together.Those of ordinary skill in the art will It will appreciate that the various devices that top 166 and bottom 168 are fixed together.

When fully assembled, the oil eliminator 19 of this embodiment takes gas blowby to entrance cavity 178 by entrance 172.Then Gas enters bottom 168 through strainer 182.As gas blowby passes through strainer 182, part oil wherein included is condensed and is discharged to interior The bottom of chamber.Then gas blowby is crossed and passes through stratum reticulare 186, wherein extra oil further condenses out from gas blowby, rests on interior Bottom of chamber portion.The vacuum formed by the pressure difference between axle box and inlet manifold then takes out gas blowby upwards, enters through strainer 182 Oral cavity 180.Alternate path through strainer 182 further condenses out extra oil from gas blowby.Strainer 182 and stratum reticulare 186 are also auxiliary Help the particulate matter and other pollutants in filtering gas blowby.Once inspiration outlet plenum 180, gas blowby by outlet 174 discharge and Pcv valve 18 is transmitted to, as in the foregoing embodiment.

In view of above, it is understood to one skilled in the art that the pollution control system that the present invention is used for diesel engine includes using In the oil strainer and Pcv valve of diesel engine.In short, when accelerating therebetween and drawing heavy duty, diesel engine will produce Gas blowby, including fuel vapo(u)r, oil and other pollutants.This gas blowby is released to oil strainer from crankcase.Here, gas blowby passes through A series of web filters, wherein oil and other pollutants are filtered out from fuel vapo(u)r.Pollutant is trapped in web filter, and Oil is agglomerated to oil strainer bottom.The bottom that condensation of oil leaves oil strainer is back to crankcase.

The fuel vapo(u)r of purification detaches oil strainer by Pcv valve, is used to restrike with engine to be back to.Pcv valve connects To controller, which realizes the variable that fuel vapo(u)r passes through valve according to current engine requirement.Once fuel vapo(u)r Through Pcv valve, it is back to engine by burning line or by any one in inlet manifold.

As a further improvement, the wiring used in sensor and signal management device (such as controller 12) and integrated electricity Road chipset can be replaced with superconductor.Specifically, system 10 can use room temperature, hot superconduction body sensor and/or signal Processor technology.Room temperature superconductor for present system 10 preferably will be slightly higher than usual indoor temperature measurement value in temperature Show their superconductor performance when (such as engine compartment temperatures).

Although some embodiments are had been described in for the purpose of illustrating, without departing from scope and spirit of the present invention In the case of can carry out various modifications respectively.Therefore, the present invention is not limited except as by the appended claims.

Claims (15)

1. a kind of diesel engine pollution control system, including：

The Pcv valve of the entrance and exit of gas blowby is released with the crankcase being adapted for from diesel engine；

Oil eliminator with entrance and top exit and outlet at bottom, wherein the entrance is fluidly coupled to the crankcase, The outlet at bottom is fluidly coupled to the refluxing opening on the crankcase, and the top exit is fluidly coupled to the Pcv valve；

Gas blowby pipeline, the inlet manifold Pcv valve being fluidly coupled on diesel engine；And

Controller, is connected to the Pcv valve, and unlatching/closing of the Pcv valve is adjusted for responding real-time gas blowby condition selecting State, to adjust the vacuum pressure in engine, and adjustably increases or reduces the gas blowby fluid from the crankcase Flow rate.

2. system according to claim 1, it is characterised in that the connection of the controller and the Pcv valve is wireless.

3. system according to claim 1, further comprises gas blowby sensor, it is connected to the controller and is embedded into institute One in oil eliminator entrance, the top exit of the oil eliminator or gas blowby pipeline is stated, for measuring gas blowby state in real time, Including gas blowby air pressure, gas blowby temperature, gas blowby component or gas blowby fluid flow rate.

4. system according to claim 3, it is characterised in that the connection of the controller and the gas blowby sensor is nothing Line.

5. system according to claim 3, it is characterised in that controller and the gas blowby sensor is substituted using superconductor Wiring and IC chip group.

6. the system according to claim 2 or 4, it is characterised in that the wireless connection is by Wi-Fi, radio, surpasses Sound wave, infrared or SMS.

7. according to claim 1-5 any one of them systems, it is characterised in that the Pcv valve utilizes electromagnetic valve mechanism, electromagnetism Aperture control mechanism, inductive fields aperture control mechanism or optical fiber aperture control mechanism adjust the liquid stream between its entrance and outlet.

8. system according to claim 3, it is characterised in that the oil eliminator includes having not isometric multiple ooze Permeability stratum reticulare, is adapted for gas blowby being divided into fuel vapo(u)r and oil droplet.

9. system according to claim 8, it is characterised in that the multiple permeability stratum reticulare is metal and metal alloy, Including steel, stainless steel, aluminium, copper, brass or bronze.

10. system according to claim 3, further comprises oil strainer, the bottom for being arranged on the oil eliminator goes out Between mouth and the refluxing opening of the crankcase, and coupled with their fluidities.

11. system according to claim 10, further comprises oil conservator, the oil eliminator and the bent axle are arranged on Between the refluxing opening of case, and coupled with their fluidities.

12. system according to claim 3, it is characterised in that the gas blowby pipeline is fluidly coupled to enter diesel internal combustion The primary fuel lines of machine.

13. a kind of method for being used to control the pollution in diesel engine, comprises the following steps：

Using Pcv valve, gas blowby is released from the crankcase of diesel engine by vacuum pressure；

Sensing gas blowby state in real time, including gas blowby pressure, gas blowby temperature, gas blowby component or gas blowby fluid flow rate；

Real-time gas blowby state is responded, adjusts unlatching/closed mode of the Pcv valve；

Adjust the gas blowby fluid flow rate of the gas blowby from the crankcase；

The gas blowby is divided into fluid oil and fuel vapo(u)r；

The fluid oil is returned into the crankcase；And

The fuel vapo(u)r can be subject to the inlet manifold of the diesel engine.

14. according to the method for claim 13, before the return to step, further comprise filtering the fluid oil Step.

15. according to the method for claim 13, before the recycling step, further comprise mixing the fuel vapo(u)r The step of with alternative fuel.