CN103649514A - Internal combustion engine valvetrain - Google Patents

Internal combustion engine valvetrain Download PDF

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Publication number
CN103649514A
CN103649514A CN201280034043.0A CN201280034043A CN103649514A CN 103649514 A CN103649514 A CN 103649514A CN 201280034043 A CN201280034043 A CN 201280034043A CN 103649514 A CN103649514 A CN 103649514A
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CN
China
Prior art keywords
valve
camshaft
exhaust
exhaust valve
actuating
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Granted
Application number
CN201280034043.0A
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Chinese (zh)
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CN103649514B (en
Inventor
D·B·罗斯
C·P·托马斯
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BorgWarner Inc
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BorgWarner Inc
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Publication of CN103649514A publication Critical patent/CN103649514A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/028—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation for two-stroke engines
    • F02D13/0284—Variable control of exhaust valves only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/44—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine
    • F01L2003/255—Valve configurations in relation to engine configured other than parallel or symmetrical relative to piston axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00—Valve arrangements comprising rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • F01L2800/10—Providing exhaust gas recirculation [EGR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/01—Absolute values
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

An internal combustion engine valvetrain for an internal combustion engine. The internal combustion engine Includes one or more cylinders with one or more intake valves, one or more blowdown exhaust valves, and one or more scavenge exhaust valves. In one example, the internal combustion engine valvetrain includes a first valve actuation mechanism to open and close the blowdown exhaust valves, and Includes a second valve actuation mechanism to open and close the scavenge exhaust valves.

Description

Internal combustion valve mechanism
The cross reference of related application
The application requires in the rights and interests of the U.S. Provisional Application sequence number 61/515,089 of submission on August 4th, 2011.
Technical field
Technical field relates generally to internal combustion valve mechanism.
Background
Car combustion engine is often equipped with air exchange system to reduce effulent and improve engine efficiency.These air exchange systems can comprise one or more turbosupercharger, one or more exhaust gas recirculatioon (EGR) assembly and miscellaneous part.These internal-combustion engines itself generally include intake valve and the exhaust valve opening and closing by valve mechanism.The exhaust of leaving these internal-combustion engines can be sent in some cases these turbosupercharger, arrives these EGR assemblies or arrive the two.
The general introduction of illustrative embodiment
An illustrative embodiment comprises a kind of internal combustion valve mechanism for internal-combustion engine.This internal-combustion engine can have one or more cylinders.These cylinders can have one or more intake valves, one or more exhaust valve and one or more cleaning exhaust valve of releasing.This internal combustion valve mechanism can comprise first valve actuation mechanism that is constructed and is arranged to these exhaust valves of releasing of actuating.This internal combustion valve mechanism can comprise a duaspiracle actuating mechanism that is constructed and is arranged to these cleaning exhaust valves of actuating.This first valve actuation mechanism can be with this duaspiracle actuating mechanism mutually independently and different parts.
An illustrative embodiment comprises a kind of internal combustion valve mechanism for internal-combustion engine.This internal-combustion engine can have one or more cylinders.These cylinders can have one or more intake valves, one or more exhaust valve and one or more cleaning exhaust valve of releasing.This internal combustion valve mechanism can comprise first actuator, and this first actuator can be constructed and be arranged to and activate these exhaust valves and can be constructed and be arranged to and activate these intake valves of releasing.This internal combustion valve mechanism can comprise can be constructed and be arranged to second actuator that activates these cleaning exhaust valves.
An illustrative embodiment comprises a kind of method, and the method can comprise the exhaust valve of releasing that activates an internal-combustion engine.The method can also comprise independently and differently activate a cleaning exhaust valve of this internal-combustion engine.
Brief description of drawings
From describe in detail and accompanying drawing by the illustrative embodiment of this disclosure of comprehend, in the accompanying drawings:
Fig. 1 is an a kind of embodiment's of internal-combustion engine schematic diagram.
Fig. 2 is an a kind of embodiment's of internal combustion valve mechanism schematic diagram.
Fig. 3 is an a kind of embodiment's of internal combustion valve mechanism schematic diagram.
Fig. 4 is an a kind of embodiment's of internal combustion valve mechanism schematic diagram.
Fig. 5 is an a kind of embodiment's of internal combustion valve mechanism schematic diagram.
Fig. 6 is an a kind of embodiment's of internal combustion valve mechanism schematic diagram.
Fig. 7 is an a kind of embodiment's of Variable Valve Time gear schematic diagram.
Fig. 8 is a kind of flow chart to an embodiment of the method for controlling at the exhaust stream separating between at least one turbosupercharger and at least one exhaust gas recirculation passages.
Fig. 9 releases and cleans an embodiment's of exhaust valve timing chart under low engine speed and load.
Figure 10 be the high pressure-charging for turbosupercharger require release and clean an embodiment's of exhaust valve timing chart.
Figure 11 is releasing and cleaning an embodiment's of exhaust valve timing chart for variable geometry turbocharger supercharging requirement under medium engine speed and load.
Figure 12 be under medium engine speed and load for increasing or the releasing and clean an embodiment's of exhaust valve timing chart of unexpected turbocharger supercharged requirement.
Figure 13 be under medium engine speed and load for increasing or the releasing and clean another embodiment's of exhaust valve timing chart of unexpected turbocharger supercharged requirement.
Figure 14 is releasing and cleaning an embodiment's of exhaust valve timing chart for variable geometry turbocharger supercharging requirement under high engine speed and load.
The detailed description of illustrative embodiment
To one or more embodiments' explanation, be only illustrative in itself below, and be intended to by no means limit the present invention, its application or its purposes.
These figure illustrate a plurality of embodiments of an internal combustion valve mechanism 10, and this internal combustion valve mechanism can be equipped in an internal-combustion engine 12, and this internal-combustion engine is constructed and is designed for exhaust stream separately---, and release exhaust stream and cleaning exhaust stream.In at least some of these embodiments, internal combustion valve mechanism 10 can provide to be controlled the independent of the actuating of intake valve 14, the exhaust valve 16 of releasing, cleaning exhaust valve 18 or its combination.In some cases, provide the independence of actuating of the different air valve 14,16,18 of combustion motor 12 to control and contribute to optimize power operation, comprise that (for example) improve engine power and improve engine efficiency.
With reference to figure 1, internal-combustion engine (ICE) 12 can for example, carry out combustion fuel and can discharge afterwards fluid (as comprised the exhaust of gas, liquid and other materials) to an ICE air exchange system (not shown) with a kind of oxygenant (, air).ICE12 can be the motor of a kind of spark ignition engines (for example, gasoline, methyl alcohol), a kind of diesel engine, a kind of alternative fuel motor or another kind of type.ICE12 can be the number of different types with the cylinder of different arrangement and varying number (that is, in-line arrangement, I-2, I-4, I-6, V-type, V-6, V-8, etc.).A cylinder block can be positioned at a cylinder head below and can have a plurality of cylindrical holes and hold a plurality of reciprocating pistons.ICE12 can work with the so-called exhaust stream separating with release exhaust phase and a cleaning exhaust phase under a kind of four stroke engine operation cycle.At this, release in exhaust phase, these exhaust valves 16 of releasing can just in time be opened before in a lower dead center of the piston arrives being associated (BDC) position.So exhaust enters a plurality of relief openings 20 of releasing under the pressure relatively increasing.In this cleaning exhaust phase, these cleaning exhaust valves 18 can make progress from BDC position at the piston being associated and insweptly return and open when top dead center (TDC) position, so that by most (if not all) residue exhaust displacement.So remaining exhaust enters a plurality of cleaning relief openings 22 under the pressure relatively reducing.In certain embodiments, can provide an intake manifold, gas exhaust manifold or the two for ICE12; This gas exhaust manifold can comprise gas exhaust manifold and one the cleaning gas exhaust manifold of releasing, and they can be used as a plurality of independent parts or provide as the parts of a single type.
In the embodiment in figure 1, ICE12 can comprise a cylinder head 24, shown in example in, ICE12 can comprise in upright arrangement four cylinders 26 that arrange.Each cylinder 26 can have a pair of intake valve 14 being connected with a suction port 28, single exhaust valve 16 and a single cleaning exhaust valve 18 of releasing.In other embodiments, release relief opening 20, cleaning relief opening 22 or the two can pool toward each other one or more single and shared ports before the main body of leaving cylinder head 24.An example of the relief opening converging is toward each other disclosed in to be had among the turbosupercharger (Directly Communicated Turbocharger) and the international application no PCT/US11/21846 with claimant BorgWarner Inc (BorgWarner Inc) name that international filing date January 20, title in 2011 are direct UNICOM.International application no PCT/US11/21846 also disclosed can with a cylinder head of applying together with the embodiment of the internal combustion valve mechanism 10 of this disclosure and a plurality of embodiments of an internal combustion cylinder air exchange system.
In the downstream of releasing relief opening 20 and cleaning relief opening 22, a combustion engine breathing system can comprise (except miscellaneous part) a pair of turbosupercharger, exhaust gas post-treatment device, one or more exhaust gas recirculatioon (EGR) subtense angle or an assembly and a charger-air cooler.An a kind of example of combustion engine breathing system is disclosed in international application no PCT/US11/21846; Another example of a kind of combustion engine breathing system be disclosed in there is international filing date on February 18th, 2009, title is for to separately controlling at the exhaust stream between turbosupercharging and exhaust gas recirculatioon among (Controlling Exhaust Gas Flow Divided Between Turbocharging and Exhaust Gas Recirculating) and the international publication number WO2009/105463 with BorgWarner Inc's name, and the embodiment disclosed in it can with together with these disclosed a plurality of embodiments, use.
Several embodiments of the schematically illustrated internal combustion valve mechanism 10 of Fig. 2 to Fig. 6.In all embodiments shown in Fig. 2 to Fig. 6, release exhaust valve 16 and cleaning exhaust valve 18 be via independently and different valve actuation mechanism carry out independent operation and control.These figure be schematically and needn't mean to illustrate these valves and these valve actuation mechanisms concrete arrangement and structure---for example, in application, these valves accurate location relative to each other can be different from shown in Fig. 2 to Fig. 6.These valve actuation mechanisms are independent of independently of one another and phase strange land opens and closes release exhaust valve 16 and cleaning exhaust valve 18.In certain embodiments, this can mean that the exhaust valve 16 of releasing does not obtain their opening and closing campaign with cleaning exhaust valve 18 via a single and identical camshaft.This also can mean that a camshaft physically causes the opening and closing of this release exhaust valve rather than this cleaning exhaust valve, and another camshaft physically causes the opening and closing of this cleaning exhaust valve rather than this exhaust valve of releasing.In some cases, what release exhaust valve 16 and cleaning exhaust valve 18 were provided independently can provide versatile engine operation with different open and close function, this versatile engine operation can contribute to optimize engine performance, comprises the engine power and the improved engine efficiency that for example improve.
In the embodiment of Fig. 2, intake valve 14, release exhaust valve 16 and cleaning exhaust valve 18 can comprise a kind of poppet valve 30, this poppet valve can in a firing chamber 32, abut against a spring 34 and the bias force effect lower linear of this spring pump.Other structures, arrangement and the parts of these valves are all possible.First valve actuation mechanism 36 can be constructed and be arranged to open and close intake valve 14 with release exhaust valve 16 the two, and duaspiracle actuating mechanism 38 can be constructed and be arranged to individually, phase strange land and be independent of this intake valve and the exhaust valve of releasing opens and closes cleaning exhaust valve 18.The first valve actuation mechanism 36 can be so-called the 3rd type, and can comprise first camshaft 40 with a plurality of protruding leaves 42, and can comprise first Rocker arm 44 and second Rocker arm 46.In use, the first camshaft 40 can rotate and rotate, simultaneously these protruding leaves 42 clash into the first Rocker arm 44 and second Rocker arm 4s 6, this first rocking arm and the second rocking arm then can self around their pivot motions separately and clash into intake valve 14 and the two the poppet valve 30 of exhaust valve 16 of releasing.As response, these poppet valves 30 can be opened and closed.Under the different amount rotation degree of the first camshaft 40, can there is different protruding leaf 42 to clash into the first Rocker arm 44 and the second Rocker arm 46, this can cause intake valve 14 and the exhaust valve 16 of releasing is not activating in the same time, and can cause that this intake valve and the exhaust valve of releasing relative to each other take on a different character, as different timings and lift.
In addition, duaspiracle actuating mechanism 38 can be the so-called first kind, and can comprise second camshaft 48 with a plurality of protruding leaves 50.In use, the second camshaft 48 can rotate and rotate, and these protruding leaves 50 can directly clash into the poppet valve 30 of cleaning exhaust valve 18 simultaneously, and this poppet valve that can cause this cleaning exhaust valve opens and closes.
Still with reference to the embodiment of figure 2, a Variable Valve Time gear 52 can be to be operationally provided on the second camshaft 48 to control continuously the actuating of cleaning exhaust valve 18.In one embodiment, Variable Valve Time gear 52 can be a variable cam phase discriminator, and this variable cam phase discriminator can be controlled event phase adjusted.Event phase adjusted is described and about a stroke of piston, with respect to a top dead center position, is shifted to an earlier date or postpone a kind of mode of the actuating phase place (degree in crank angle while closing to open to it from a valve is measured) of a valve.The operation of Variable Valve Time gear 52 can be indicated by a control unit of engine being associated or module.And in one embodiment, Variable Valve Time gear 52 can comprise (except miscellaneous part) variable force solenoid and a guiding valve.In other embodiments, this Variable Valve Time gear can have different types; Can there is different structures; Can have more, still less and/or different parts; And can there is different arrangements.In addition, although not shown, one independently and different Variable Valve Time gear can operationally be provided on the first camshaft 40 to control continuously the actuating of intake valve 14 and the exhaust valve 16 of releasing.In one embodiment, the Variable Valve Time gear of the first camshaft 40 can be a variable cam phase discriminator of just having described as above.
In embodiment described above, can to the exhaust valve 16 of releasing, cleaning exhaust valve 18 or the two, control according to the method disclosed in international publication number WO2009/105463---phase place in advance, phase delay or the two, the method is described using below from ' 463 parts of openly choosing.For example, when the second camshaft 48 is equipped with Variable Valve Time gear 52 and the first camshaft 40, be unkitted while having a Variable Valve Time gear, the controlling method of international publication number WO2009/105463 can be according to an illustrative embodiment for controlling the actuating of cleaning exhaust valve 18.Use this controlling method, or use another kind of applicable controlling method, exhaust can be delivered to the turbosupercharger being associated to control the supercharging of turbosupercharger in a kind of selectivity mode; In certain embodiments, can exempt a turbine bypass of these turbosupercharger.In addition, use this controlling method, or use another kind of applicable controlling method, exhaust can be delivered to the EGR subtense angle being associated to improve power operation in a kind of selectivity mode.In an example, when when the first camshaft 40 and the second camshaft 48, both are all equipped with a Variable Valve Time gear (Variable Valve Time gear as described above), can control to optimize the engine power under heavy-duty engine operational condition valve 14,16,18, and to optimize in slight engine efficiency to intermediate part load engine operating condition.In this example, the one or more instructions during this controlling method can comprise giving an order: i) slightly to intermediate part load with compared with under low speed, make the phase place of intake valve 14 and the exhaust valve 16 of releasing in advance to optimize engine power; Ii) in heavy duty with at a high speed, the phase place of retarded admission door 14 and the exhaust valve 16 of releasing is to optimize engine power; And iii), under underload and low speed, the phase place of retarded admission door 14 and the exhaust valve 16 of releasing, to optimize engine efficiency, comprises fuel consumption efficiency.
In the embodiments of figure 3, first valve actuation mechanism 54 can be constructed and be arranged to open and close intake valve 14 with release exhaust valve 16 the two, and duaspiracle actuating mechanism 56 can be constructed and be arranged to individually, phase strange land and be independent of this intake valve and release exhaust valve and open and close cleaning exhaust valve 18.The first valve actuation mechanism 54 can be so-called the 3rd type, and can comprise first camshaft 58 with a plurality of protruding leaves 60, and can comprise first rocking arm 62 and second rocking arm 64.The general service of such valve actuation mechanism and functional has been described before.Equally, duaspiracle actuating mechanism 56 can be so-called the 3rd type, and can comprise second camshaft 66 with a plurality of protruding leaves 68, and can comprise the 3rd rocking arm 70.The general service of such valve actuation mechanism and functional has been described equally, before.Still with reference to 3, one Variable Valve Time gear 72 of figure, can be to be operationally provided on the second camshaft 66 to control continuously the actuating of cleaning exhaust valve 18.In one embodiment, Variable Valve Time gear 72 can be a variable cam phase discriminator as previously described.In other embodiments, this Variable Valve Time gear can have different types; Can there is different structures; Can have more, still less and/or different parts; And can there is different arrangements.In addition, although not shown, one independently and different Variable Valve Time gear can operationally be provided on the first camshaft 58 to control continuously the actuating of intake valve 14 and the exhaust valve 16 of releasing.In one embodiment, the Variable Valve Time gear of the first camshaft 58 can be a variable cam phase discriminator as previously described.In addition, in the embodiments of figure 3, can described method control these Variable Valve Time gear according to the embodiment in conjunction with Fig. 2, the method comprises the method disclosed in international publication number WO2009/105463.
In the embodiment of Fig. 4, first valve actuation mechanism 74 can be constructed and be arranged to open and close intake valve 14 with release exhaust valve 16 the two, and duaspiracle actuating mechanism 76 can be constructed and be arranged to individually, phase strange land and be independent of this intake valve and the exhaust valve of releasing opens and closes cleaning exhaust valve 18.The first valve actuation mechanism 74 can be so-called Second Type, and can comprise first camshaft 78 with a plurality of protruding leaves 80, and can comprise first rocking arm 82 and second rocking arm 84.In use, the first camshaft 78 can rotate and rotate, simultaneously these protruding leaves 80 clash into the first rocking arm 82 and second rocking arms 84, this first rocking arm and the second rocking arm then can self around their pivot motions separately and clash into intake valve 14 and the two the poppet valve 30 of exhaust valve 16 of releasing.Equally, duaspiracle actuating mechanism 76 can be so-called Second Type, and can comprise second camshaft 86 with a plurality of protruding leaves 88, and can comprise the 3rd rocking arm 90.The general service of such valve actuation mechanism and functional has been described before.Still with reference to 4, one Variable Valve Time gear 92 of figure, can be to be operationally provided on the second camshaft 86 to control continuously the actuating of cleaning exhaust valve 18.In one embodiment, Variable Valve Time gear 92 can be a variable cam phase discriminator as previously described.In other embodiments, this Variable Valve Time gear can have different types; Can there is different structures; Can have more, still less and/or different parts; And can there is different arrangements.In addition, although not shown, one independently and different Variable Valve Time gear can operationally be provided on the first camshaft 78 to control continuously the actuating of intake valve 14 and the exhaust valve 16 of releasing.In one embodiment, the Variable Valve Time gear of the first camshaft 78 can be a variable cam phase discriminator as previously described.In addition, in the embodiment of Fig. 4, can described method control these Variable Valve Time gear according to the embodiment in conjunction with Fig. 2, the method comprises the method disclosed in international publication number WO2009/105463.
In the embodiment of Fig. 5, first valve actuation mechanism 94 can be constructed and be arranged to opening and closing intake valve 14, a duaspiracle actuating mechanism 96 can be constructed and be arranged to and open and close the exhaust valve 16 of releasing, and a third valve actuating mechanism 98 can be constructed and be arranged to opening and closing cleaning exhaust valve 18.This first valve actuation mechanism 94, duaspiracle actuating mechanism 96 and third valve actuating mechanism 98 can be individually, phase strange land and be independent of their valves separately of other two valve actuations.The first valve actuation mechanism 94 can be so-called Second Type, and can comprise first camshaft 100 with a plurality of protruding leaves 102, and can comprise first rocking arm 104.The general service of such valve actuation mechanism and functional has been described before.Equally, duaspiracle actuating mechanism 96 can be so-called Second Type, and can comprise second camshaft 106 with a plurality of protruding leaves 108, and can comprise second rocking arm 110.The general service of such valve actuation mechanism and functional has been described before.And similarly, third valve actuating mechanism 98 can be so-called Second Type, and the 3rd camshaft 112 with a plurality of protruding leaves 114 can be comprised, and the 3rd rocking arm 116 can be comprised.The general service of such valve actuation mechanism and functional has been described before.
Still with reference to 5, one Variable Valve Time gear 118 of figure, can be to be operationally provided on the 3rd camshaft 112 to control continuously the actuating of cleaning exhaust valve 18.In one embodiment, Variable Valve Time gear 118 can be a variable cam phase discriminator as previously described.In other embodiments, this Variable Valve Time gear can have different types; Can there is different structures; Can have more, still less and/or different parts; And can there is different arrangements.In addition, although not shown, one independently and different Variable Valve Time gear can operationally be provided on the first camshaft 100 to control continuously the actuating of intake valve 14.In one embodiment, the Variable Valve Time gear of the first camshaft 100 can be a variable cam phase discriminator as previously described.In addition, although not shown, one independently and different Variable Valve Time gear can operationally be equipped on the second camshaft 106 so that the actuating of controlled discharge exhaust valve 16 continuously.In one embodiment, the Variable Valve Time gear of the second camshaft 106 can be a variable cam phase discriminator as previously described.In addition, in the embodiment of Fig. 5, can described method control these Variable Valve Time gear according to the embodiment in conjunction with Fig. 2, the method comprises the method disclosed in international publication number WO2009/105463.
In the embodiment of Fig. 6, first valve actuation mechanism 120 can be constructed and be arranged to opening and closing intake valve 14, a duaspiracle actuating mechanism 122 can be constructed and be arranged to and open and close the exhaust valve 16 of releasing, and a third valve actuating mechanism 124 can be constructed and be arranged to opening and closing cleaning exhaust valve 18.This first valve actuation mechanism 120, duaspiracle actuating mechanism 122 and third valve actuating mechanism 124 can be individually, phase strange land and be independent of their valves separately of other two valve actuations.The first valve actuation mechanism 120 can be the so-called first kind, and can comprise first camshaft 126 with a plurality of protruding leaves 128.The general service of such valve actuation mechanism and functional has been described before.On the other hand, duaspiracle actuating mechanism 122 can be so-called Second Type, and can comprise second camshaft 130 with a plurality of protruding leaves 132, and can comprise second rocking arm 134.The general service of such valve actuation mechanism and functional has been described before.And similarly, third valve actuating mechanism 124 can be so-called Second Type, and the 3rd camshaft 136 with a plurality of protruding leaves 138 can be comprised, and the 3rd rocking arm 140 can be comprised.The general service of such valve actuation mechanism and functional has been described before.
Still with reference to 6, one Variable Valve Time gear 142 of figure, can be to be operationally provided on the 3rd camshaft 136 to control continuously the actuating of cleaning exhaust valve 18.In one embodiment, Variable Valve Time gear 142 can be a variable cam phase discriminator as previously described.In other embodiments, this Variable Valve Time gear can have different types; Can there is different structures; Can have more, still less and/or different parts; And can there is different arrangements.In addition, although not shown, one independently and different Variable Valve Time gear can operationally be provided on the first camshaft 126 to control continuously the actuating of intake valve 14.In one embodiment, the Variable Valve Time gear of the first camshaft 126 can be a variable cam phase discriminator as previously described.In addition, although not shown, one independently and different Variable Valve Time gear can operationally be provided on the second camshaft 130 so that the actuating of controlled discharge exhaust valve 16 continuously.In one embodiment, the Variable Valve Time gear of the second camshaft 130 can be a variable cam phase discriminator as previously described.In addition, in the embodiment of Fig. 6, can described method control these Variable Valve Time gear according to the embodiment in conjunction with Fig. 2, the method comprises the method disclosed in international publication number WO2009/105463.
Internal combustion valve mechanism 10 can have other embodiments not shown in figures.For example, in one embodiment, first valve actuation mechanism can be constructed and be arranged to open and close intake valve with release exhaust valve the two, and duaspiracle actuating mechanism can be constructed and be arranged to individually, phase strange land and be independent of intake valve and the exhaust valve of releasing opens and closes cleaning exhaust valve.This first valve actuation mechanism can be so-called the 3rd type as previously described; And this duaspiracle actuating mechanism can be so-called Second Type as previously described.In this embodiment, it is functional that this duaspiracle actuating mechanism can be equipped with Variable Valve Time, as a variable cam phase discriminator as previously described.In addition, it is functional that this first valve actuation mechanism can be equipped with Variable Valve Time, as a variable cam phase discriminator as previously described.And in this embodiment, this Variable Valve Time is functional can be that the method comprises the method disclosed in international publication number WO2009/105463 according to the described method of the embodiment in conjunction with Fig. 2.
In another embodiment not shown in figures, a first valve arrestment mechanism can be a first camless valve actuation mechanism and can be constructed and be arranged to this intake valve of opening and closing, and a duaspiracle actuating mechanism can be a second camless valve actuation mechanism and can be constructed and be arranged to this cleaning exhaust valve of opening and closing.In an exemplary camless valve actuation mechanism, can equip independent actuator at each independent poppet valve place, and can be Electromagnetic Control, hydraulic control, pneumatic control, its combination or another kind of mode control.In this embodiment, a third valve actuating mechanism can be constructed and be arranged to this exhaust valve of releasing of opening and closing.This third valve actuating mechanism can comprise a camshaft with a plurality of protruding leaves, and can be as the described so-called first kind, Second Type or the 3rd type before all.This first valve actuation mechanism, duaspiracle actuating mechanism and third valve actuating mechanism can be individually, phase strange land and be independent of other two kinds of valves and activate their valves separately.In addition, in this embodiment, it is functional that this third valve actuating mechanism can be equipped with Variable Valve Time, as a variable cam phase discriminator as previously described.This Variable Valve Time is functional can be that the method comprises the method disclosed in international publication number WO2009/105463 according to the described method of the embodiment in conjunction with Fig. 2.
Still in other embodiments not shown in figures, these valve actuation mechanisms of these embodiments shown in Fig. 2 to Fig. 6 can change into and be constructed and be arranged to so-called the 4th type of formation.For example, in the embodiment of Fig. 5, the first valve actuation mechanism 94 can be the 4th type, and can comprise having a camshaft of a plurality of protruding leaves, a rocking arm and a tappet; In other examples, the 4th type can comprise miscellaneous part and/or different parts.
In other a plurality of embodiments not shown in figures, similar with those shown in Fig. 2 to Fig. 4, have independently and the embodiment of two different camshafts can comprise any combination of these so-called first kind, Second Type, the 3rd type and the 4th type each other valve actuation mechanism.For example, an embodiment can comprise a first kind and a Second Type; Another embodiment can comprise the 3rd type and the 4th type; Another embodiment can comprise a Second Type and the 4th type; And there is other examples.In other a plurality of embodiments not shown in figures, similar with those shown in Fig. 5 and Fig. 6, have independently and the embodiment of three different camshafts can comprise any combination of these so-called first kind, Second Type, the 3rd type and the 4th type each other valve actuation mechanism.For example, an embodiment can comprise the one or three type, the two or three type and a Second Type; Another embodiment can comprise a first kind, the 3rd type and the 4th type; Another embodiment can comprise first first kind, second first kind and the 3rd type; And there is other examples.
In other embodiments, it is functional that these embodiments shown in Fig. 1 to Fig. 6 and not shown other embodiments' valve actuation mechanism can operationally be equipped with Variable Valve Time, as common so-called multiple air Variable Valve Time (multiair variable valve timing), or common so-called single air Variable Valve Time (uniair variable valve timing).With reference to figure 7, in an example, a camshaft 144 with a plurality of protruding leaves 146 can clash into a cam follower 148(as a needle-type rocking arm or a piston).Cam follower 148 can Yu Yige grease chamber 150 UNICOMs, and this grease chamber can cause that Yi Ge hydraulic valve actuation mechanism 152 opens and closes corresponding poppet valve 30.Can interact to change valve timing and lift with grease chamber 150 via a solenoid valve 154 of a control unit of engine being associated or module indication.In other examples, these Variable Valve Time are functional can be comprised than shown here and described more, still less or the parts different from it.
Referring now to Fig. 8 to Figure 14 and use from ' 463 parts of openly choosing international publication number WO2009/105463 mentioned above described controlling method generally speaking, releasing the optimal valve timing of valve and cleaning valve should be for application and special use, and therefore by the difference with the difference of motor.But these valves of releasing are compared with these clean-out doors can have the relative timing shifting to an earlier date, have compared with long valve and open the endurance and have higher lift.In an example, the lift of these valves of releasing can be roughly 180 degree the obtainable maximum lift of crankangle, and these cleaning valves lifts can be roughly 160 degree the obtainable maximum lift of crankangle.
Comprise that can be this or these the release endurance of valve and/or exemplary valve timing of lift on approximately 70% to 100% the order of magnitude of valve timing of same or analogous motor that is equipped with conventional exhaust valve.Release for this or these exemplary valve timing more specifically of valve 24 can be for being equipped with the approximately 85%-95%(for example 90% of valve endurance timing of the identical or similar motor of conventional exhaust valve) endurance and be the approximately 90%-100%(for example 95% of valve lift timing) lift.Under the supercharging condition of minimum turbosupercharger this or these release the valve of valve to open timing can be similarly generally or lagged behind, and can be by advance to strengthen supercharging.Approximately 2000 and 5500RPM between release for this or these exemplary phase place mandate (authority) of valve can be for example, the order of magnitude in the crank shaft angle of approximately 25 to 40 degree (28 degree).
Comprise that this or these cleaning the endurance of valve and/or the exemplary valve timing of lift can be on approximately 60% to 90% the order of magnitude of valve timing of same or analogous motor that is equipped with conventional exhaust valve.For exemplary valve timing more specifically of this or these cleaning valve being the approximately 75%-85%(for example 80% of valve endurance timing that is equipped with the identical or similar motor of conventional exhaust valve) endurance and lift timing be about 80%-90%(for example 85%) lift.The valve-closing timing of this or these valve can be similar to the valve-closing timing of the identical or similar motor that is equipped with conventional exhaust valve generally.Approximately 2000 and 5500RPM between the exemplary phase place mandate of this or these cleaning valve can be on for example, the order of magnitude in the crank shaft angle of approximately 30 to 60 degree (40 degree).
Referring now to Fig. 8,, illustrate in a flowchart a kind of illustrative methods 300.As the process specification of method 300, with reference to the timing diagram of Fig. 9 to Figure 14.As shown in step 305, method 300 can start in any suitable manner.For example, method 300 can start when the startup of ICE12.In step 310, fresh air can be drawn in an air-breathing subtense angle of engine system, and air-breathing can being inhaled among a motor of engine system by this air-breathing subtense angle.In step 315, exhaust can be discharged from a motor by an exhaust gas subsystem of engine system.For example, exhaust can be discharged from ICE12 by the one or more gas exhaust manifolds that are associated.Exhaust valve 16,18 can activate independently of one another, to pro rata distribute exhaust stream between one or more turbosupercharger and this or these EGR subtense angle.
In step 320, when a motor is with idling speed or approach idling speed and during with low load or running light, can control so that inner residual gas reduces or minimizes exhaust valve.In an example, and referring to Fig. 9, opening release exhaust valve 16 and cleaning exhaust valve 18 can be controlled to for making overlapping increase or maximization.At one more specifically in example, these one or more in exhaust valve 16 of releasing can be that one or more in the 24a that lags behind completely and these cleaning valves 18 can be the 25a shifting to an earlier date completely.According to a concrete example, at least one approximately 10 to 20 degree that can be lagged behind that these are released in exhaust valve 16, and at least one in these cleaning exhaust valves 18 can be by approximately 20 to 30 degree in advance.As shown in Figure 9, these release in exhaust valve 16 at least one can be lagged behind, so that this or these valve just started to open before BDC, as before BDC approximately 0 to 45(for example 15 to 25) within degree, and at least one in these cleaning exhaust valves 18 can be by advance, so that this or these valve just starts to close after TDC, as after TDC approximately 10 to 45(for example 15 to 20) within degree.
In step 325, when motor being required to high capacity or maximum instantaneous response, if motor is with idling speed or when approaching idling speed and moving when non-loaded or the low load, exhaust valve can be controlled so that be delivered to the energy of turbocharger turbine and increase or maximize.In an example, and referring to Figure 10, can controlled discharge exhaust valve 16 and opening of exhaust valve 18 of cleaning and reach minimum overlapping.At one more specifically in example, these one or more can being shifted to an earlier date completely in exhaust valve 16 of releasing, and one or more can hysteresis completely in these cleaning exhaust valves 18.According to a concrete example, these release in exhaust valve 16 at least one can be by advance approximately 10 to 40(for example 15 to 20) degree, and at least one in these cleaning exhaust valves 18 can be lagged behind approximately 20 to 60(for example 25 to 30) degree.As shown in figure 10, these release in exhaust valve 16 at least one can be by advance, so that this or these opening of valve is just before BDC (within 40 to 50 degree before BDC), and at least one in these cleaning exhaust valves 18 can be lagged behind, so that closing of this or these valve is just after TDC, as after TDC approximately 45 to 80(for example 50 to 60) within degree.
In step 330, when a motor is during in fact with one or more medium speeds and/or load operation, and wherein for engine loading, require (, the supercharging of turbosupercharger) do not propose any hope or requirement, can control exhaust valve and compromise or a kind of desirable or balance of requiring is provided between desirable inner residual gas part (or internal EGR) and turbocharger speed.In an example, and referring to Figure 11, can controlled discharge exhaust valve 16 and variable overlapping for valve timing of the timing of cleaning exhaust valve 18.At one more specifically in example, can locate best these one or more in exhaust valve 16 of releasing for best engine efficiency, and one or more can being shifted to an earlier date changeably or lag behind 25a or lag behind the completely position of 25b or any position between them completely in advance in these cleaning exhaust valves 18, to realize a kind of desirable balance between internal EGR and turbocharger speed.In a concrete situation, these one or more in exhaust valve 16 of releasing can be by one direction ground or the 24a that lags behind completely.According to a concrete example, at least one approximately 10 to 20 degree that can be lagged behind that these are released in exhaust valve 16, and at least one in these cleaning exhaust valves 18 can be in the gamut of approximately 40 to 60 degree by advance or approximately 20 to 30 degree that lag behind.These release in exhaust valve 16 at least one can be lagged behind so that this or these valve just started to open before BDC, within approximately 15 to 25 degree before BDC.At least one in these cleaning exhaust valves 18 can be changed between the limiting value (so that this or these valve starts to close within 50 to 60 degree after TDC) of a limiting value shifting to an earlier date (so that this or these valve starts to close within 0 to 10 degree after TDC) and a hysteresis.
In step 335, when a motor is during substantially with one or more medium speeds and/or load (wherein the supercharging of at least some turbosupercharger is desirable or requires) operation, can control exhaust valve changeably to obtain good engine efficiency.Referring to Figure 12, according in the variable control of multi-step example, first, one or more exhaust energies of releasing that can be lagged behind to increase for supercharging in these cleaning valves 18, and substantially side by side, the TDC that can increase this or these cleaning valve 18 and this or these intake valve 14 is overlapping, to increase internal EGR.For example, can by least maintaining the timing of this or these intake valve 14 or this or these intake valve 14 timings in advance, to realize this TDC overlapping.Secondly, when realize one desirable or require internal EGR level time, can shift to an earlier date this or these release one or more in valve 16 and for other supercharging.According to a concrete example, at least one in exhaust valves 18 of these cleanings can be by 20 to 30 degree that lag behind, and at least one in these intake valves 14 is held stable or by 5 to 30 degree in advance.Then, these release in exhaust valve 16 at least one can be by the scope of approximately 10 to 20 degree in advance.At least one in these cleaning exhaust valves 18 can be lagged behind, so that this or these valve starts to open within approximately 50 to 60 degree after TDC, and at least one in these intake valves 14 can be held or by advance, so that this or these valve 14 approximately 30 was spent to TDC approximately 30 and started to open within spending before TDC.These release in exhaust valve 16 at least one can be by advance, so that this or these valve started to open within approximately 40 to 50 degree before BDC.In another example, according to step 335, and referring to Figure 13, this or these one or more can control changeably of releasing in valve 16, this variable control of substantially cleaning exhaust valve 18 with this or these is simultaneously, and no matter when specific internal EGR level realizes or no realization and by this or these intake valve 14 in advance, to obtain the well balanced of supercharging and engine efficiency.
In step 340, when motor is during substantially with one or more high speeds or top speed and/or load operation, for example, can control exhaust valve and protect one or more turbosupercharger.In an example, and referring to Figure 14, can controlled discharge exhaust valve 16 and the opening for being similar to the overlapping increase of Fig. 9 of cleaning exhaust valve 18, but be perhaps the less number of degrees, and for being similar to the variable overlapping of Figure 11, but it is contrary.At one more specifically in example, one or more (if incomplete words) substantially in these cleaning exhaust valves 18 shift to an earlier date, and these one or more can being shifted to an earlier date changeably or lag behind in valve 16 of releasing, for example to regulate the boost pressure level of turbosupercharger and PMEP minimized.According to a concrete example, at least one in exhaust valves 18 of these cleanings can be released in exhaust valve 16 by approximately 20 to 30 degree in advance and these at least one can be in the entire scope of approximately 20 to 40 degree by advance or the scope of approximately 10 to 20 degree that lag behind.As shown in figure 14, at least one in exhaust valves 18 of these cleanings can be by advance so that this or these valve just after TDC (within approximately 15 to 25 degree after TDC) start to close.Equally as shown in figure 14, can between the limiting value (so that this or these valve started to open within approximately 15 to 25 degree before BDC) of a limiting value shifting to an earlier date (so that this or these valve started to open within approximately 40 to 50 degree before BDC) and a hysteresis, change at least one that these are released in exhaust valve 16.For an exemplary whole strategy of full load, can regulate the two the phase place of cam and cleaning cam of releasing, to optimize engine efficiency under a target boost pressure level.
In step 345, exhaust can be recycled to by high pressure EGR passage and/or low pressure EGR passage one or both of an air-breathing subtense angle of engine system from an exhaust gas subsystem.In step 346, arrange by default, cleaning exhaust can be defined as having precedence over the exhaust and for the recirculation of relatively cold cleaning exhaust of releasing of EGR.In other words, the cleaning exhaust of pro rata distributing by EGR subtense angle can be more than the exhaust of releasing.For example, arrange by default, EGR can carry out with 100% cleaning exhaust.In step 347, according to one or more exceptions of the default setting of step 346, EGR can supplement by least some EGR that releases.Exemplary exception be included in cold start-up after motor heat engine to make motor and/or the temperature fast rise of catalytic converter.Another exemplary exception comprises following situation, and wherein the Pressure Drop on motor is not enough to by cleaning exhaust, provide a desirable or desired EGR speed separately.
In step 348, can by the exhaust of releasing, provide EGR completely, with this, prevent from the reverse exhaust air flow of gas exhaust manifold to cleaning gas exhaust manifold of releasing.Under such a case, cleaning gas can be blocked completely with EGR.In step 349, EGR can be replaced by LP EGR or also can be provided by LP EGR.In step 350, come self-purging energy can be extracted and be converted into the air-breathing energy of compression.In step 351, can control the boost pressure level of VTG turbosupercharger.In step 352, can drive a plurality of turbosupercharger by the manifold of releasing.
In a kind of first mode, in step 353, for example at relatively low engine speed and load (as in the situation that the race of engine), there is high or maximum turbosupercharger requirement, can control these exhaust valves 16,18 by the mode providing in step 325, and the first turbosupercharger can be carried out major part and be perhaps whole turbosuperchargings, and the second turbosupercharger can be carried out seldom to there is no turbosupercharging.In this first mode, major part (if not all) energy of the exhaust of flowing out since the gas exhaust manifold of releasing is used for moving first turbo machine, and therefore pressurized air in first compressor.In a kind of the second pattern, in step 354, for example, under relatively high or maximum engine speed and load, can be by control exhaust valve 16,18 as the mode providing in step 340, and second turbosupercharger can be carried out major part (if not all) turbosupercharging, and first turbosupercharger can be carried out seldom to there is no turbosupercharging.
In a kind of three-mode, in step 355, for example, under relatively medium engine speed and load, can regulate the control of exhaust valve 16,18 and can between the first turbosupercharger and the second turbosupercharger, regulate turbosupercharging, to realize relatively low PMEP level.Finally, in step 360, can method 300 be ended by any applicable mode.For example, method 300 can be ended when ICE12 shuts down.
It is below an explanation selecting within the scope of the present invention illustrative embodiment.Yet, the invention is not restricted to this explanation; And parts, element and step in each embodiment and each embodiment can be used individually or be used in combination with parts, element and step in any other embodiment and these other embodiments.
Embodiment one can comprise an internal combustion valve mechanism for internal-combustion engine.This internal-combustion engine can comprise one or more cylinders, and the one or more cylinder can have one or more intake valves, one or more exhaust valve and one or more cleaning exhaust valve of releasing.This internal combustion valve mechanism can comprise first valve actuation mechanism, and this first valve actuation mechanism can be constructed and be arranged to these one or more exhaust valves of releasing of actuating.This internal combustion valve mechanism can also comprise a duaspiracle actuating mechanism, and this duaspiracle actuating mechanism can be constructed and be arranged to these one or more cleaning exhaust valves of actuating.This first valve actuation mechanism can be with this duaspiracle actuating mechanism mutually independently and the different parts of.
Embodiment two (it can be combined with embodiment one) can further be described as this first valve actuation mechanism to comprise a camshaft and a rocking arm, this camshaft and this rocking arm can be constructed and be arranged to and activate these one or more exhaust valves of releasing, and can be constructed and be arranged to these one or more intake valves of actuating.
Embodiment three (it can be combined to any one in embodiment two with embodiment one) can further be described as comprising second camshaft by this duaspiracle actuating mechanism, and this second camshaft can be constructed and be arranged to and activate these one or more cleaning exhaust valves.This internal combustion valve mechanism may further include a Variable Valve Time gear that can operationally be provided on this second camshaft.
Embodiment four (it can be combined to any one in embodiment three with embodiment one) can further be described as this Variable Valve Time gear to comprise a variable cam phase discriminator.
Embodiment five (it can be combined to any one in embodiment four with embodiment one) can be described as this internal combustion valve mechanism further comprising second Variable Valve Time gear that can operationally be provided on this first camshaft.
Embodiment six (it can be combined to any one in embodiment five with embodiment one) can be described as this first valve actuation mechanism to comprise first camshaft.This duaspiracle actuating mechanism can comprise second camshaft.And this internal combustion valve mechanism can comprise a third valve actuating mechanism can with the 3rd camshaft, the 3rd camshaft can be constructed and be arranged to these one or more intake valves of actuating.
Embodiment seven (it can be combined to any one in embodiment six with embodiment one) can further be described as comprising a camshaft by this first valve actuation mechanism.This duaspiracle actuating mechanism can comprise a first camless valve actuation mechanism.This internal combustion valve mechanism can comprise a second camless valve actuation mechanism, and this second camless valve arrestment mechanism can be constructed and be arranged to these one or more intake valves of actuating.
Embodiment eight (it can be combined to any one in embodiment seven with embodiment one) can further be described as comprising first camshaft by this first valve actuation mechanism.This duaspiracle actuating mechanism can activate this one or more intake valves.This duaspiracle actuating mechanism can comprise second camshaft.This internal combustion valve mechanism can comprise a Variable Valve Time gear that can operationally be provided on this second camshaft.This Variable Valve Time gear can comprise Yi Ge grease chamber and a solenoid valve, and this solenoid valve can optionally Yu Gai grease chamber interaction in valve actuation process.
Embodiment nine can comprise an internal combustion valve mechanism for internal-combustion engine.This internal-combustion engine can comprise one or more cylinders, and the one or more cylinder can have one or more intake valves, one or more exhaust valve and one or more cleaning exhaust valve of releasing.This internal combustion valve mechanism can comprise first actuator, and this first actuator can be constructed and be arranged to and activate this one or more exhaust valves and can be constructed and be arranged to and activate these one or more intake valves of releasing.This internal combustion valve mechanism can comprise second actuator, and this second actuator can be constructed and be arranged to these one or more cleaning exhaust valves of actuating.
Embodiment ten (it can be combined with embodiment nine) can further be described as this internal combustion valve mechanism to comprise a variable cam phase discriminator, and this variable cam phase discriminator can operationally be provided on this second actuator.
Embodiment 11 (it can be combined to any one in embodiment ten with embodiment nine) can further be described as this first actuator to comprise first camshaft and first rocking arm.This second actuator can comprise second camshaft.
Embodiment 12 can comprise the exhaust valve of releasing that activates internal-combustion engine, and can comprise a cleaning exhaust valve that activates independently this internal-combustion engine with phase strange land.
Embodiment 13 (it can be combined with embodiment 12) can further describe the exhaust valve of releasing that activates this internal-combustion engine by first valve actuation mechanism.This embodiment can also further describe the cleaning exhaust valve that activates this internal-combustion engine by a duaspiracle actuating mechanism, this duaspiracle actuating mechanism can be with this first valve actuation mechanism mutually independently and different parts.
Embodiment 14 (its can with embodiment 12 to 13 in any one is combined) can comprise an intake valve that activates this internal-combustion engine by this first valve actuation mechanism.
Therefore the above explanation of embodiments of the invention is only illustrative in itself, and its multiple variation should not be considered to have departed from the spirit and scope of the present invention.

Claims (14)

1. a product, comprising:
For an internal combustion valve mechanism of an internal-combustion engine, this internal-combustion engine has at least one cylinder, and this at least one cylinder has at least one intake valve, at least one release exhaust valve and at least one cleaning exhaust valve; This internal combustion valve mechanism comprises first valve actuation mechanism, and this first valve actuation mechanism is constructed and is arranged to this at least one exhaust valve of releasing of actuating; And comprise a duaspiracle actuating mechanism, this duaspiracle actuating mechanism is constructed and is arranged to and activates this at least one cleaning exhaust valve, wherein this first valve actuation mechanism is and this duaspiracle actuating mechanism independent and different parts mutually.
2. product as claimed in claim 1, wherein this first valve actuation mechanism comprises a camshaft and a rocking arm, and this camshaft and this rocking arm are constructed and are arranged to and activate this at least one release exhaust valve and be constructed and be arranged to and activate this at least one intake valve.
3. product as claimed in claim 2, wherein this duaspiracle actuating mechanism comprises second camshaft, this second camshaft is constructed and is arranged to and activates this at least one cleaning exhaust valve, and wherein this internal combustion valve mechanism further comprises the Variable Valve Time gear being operationally provided on this second camshaft.
4. product as claimed in claim 3, wherein this Variable Valve Time gear comprises a variable cam phase discriminator.
5. product as claimed in claim 4, wherein this internal combustion valve mechanism further comprises second Variable Valve Time gear being operationally provided on this first camshaft.
6. product as claimed in claim 1, wherein this first valve actuation mechanism comprises first camshaft, and this duaspiracle actuating mechanism comprises second camshaft, and wherein this internal combustion valve mechanism further comprises a third valve actuating mechanism with the 3rd camshaft, the 3rd camshaft is constructed and is arranged to this at least one intake valve of actuating.
7. product as claimed in claim 1, wherein this first valve actuation mechanism comprises a camshaft, and this duaspiracle actuating mechanism comprises a first camless valve actuation mechanism, and wherein this internal combustion valve mechanism further comprises a second camless valve actuation mechanism, this second camless valve actuation mechanism is constructed and is arranged to this at least one intake valve of actuating.
8. product as claimed in claim 1, wherein this first valve actuation mechanism comprises first camshaft, wherein this duaspiracle actuating mechanism also activates this at least one intake valve, wherein this duaspiracle actuating mechanism comprises second camshaft, and wherein this internal combustion valve mechanism further comprises the Variable Valve Time gear being operationally provided on this second camshaft, this Variable Valve Time gear comprises Yi Ge grease chamber and a solenoid valve, and this solenoid valve can optionally Yu Gai grease chamber interaction in valve actuation process.
9. a product, comprising:
For an internal combustion valve mechanism of an internal-combustion engine, this internal-combustion engine has at least one cylinder, and this at least one cylinder has at least one intake valve, at least one release exhaust valve and at least one cleaning exhaust valve; This internal combustion valve mechanism comprises first actuator, and this first actuator is constructed and is arranged to and activates this at least one release exhaust valve and be constructed and be arranged to and activate this at least one intake valve; This internal combustion valve mechanism comprises second actuator, and this second actuator is constructed and is arranged to this at least one cleaning exhaust valve of actuating.
10. product as claimed in claim 9, wherein this internal combustion valve mechanism comprises the variable cam phase discriminator being operationally provided on this second actuator.
11. products as claimed in claim 10, wherein this first actuator comprises first camshaft and first rocking arm, and wherein this second actuator comprises second camshaft.
12. 1 kinds of methods, comprising:
Activate the exhaust valve of releasing of an internal-combustion engine; And
Independently and phase strange land activate a cleaning exhaust valve of this internal-combustion engine.
13. methods as claimed in claim 12, wherein activate this exhaust valve of releasing and further comprise this exhaust valve of releasing that activates this internal-combustion engine via first valve actuation mechanism, and wherein activate this cleaning exhaust valve and further comprise this cleaning exhaust valve that activates this internal-combustion engine via a duaspiracle actuating mechanism, this duaspiracle actuating mechanism be with this first valve actuation mechanism mutually independently and different parts.
14. methods as claimed in claim 13, further comprise:
Via this first valve actuation mechanism, activate an intake valve of this internal-combustion engine.
CN201280034043.0A 2011-08-04 2012-08-03 Internal combustion valve mechanism Expired - Fee Related CN103649514B (en)

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CN103649514B (en) 2016-10-12

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