CN102791966B - Valve assembly - Google Patents
Valve assembly Download PDFInfo
- Publication number
- CN102791966B CN102791966B CN201180013416.1A CN201180013416A CN102791966B CN 102791966 B CN102791966 B CN 102791966B CN 201180013416 A CN201180013416 A CN 201180013416A CN 102791966 B CN102791966 B CN 102791966B
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- valve
- room
- flow path
- region
- valve gear
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Classifications
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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
- 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
- F01L3/12—Cooling of valves
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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
- 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
- F01L3/12—Cooling of valves
- F01L3/16—Cooling of valves by means of a fluid flowing through or along valve, e.g. air
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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
- 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
- F01L3/12—Cooling of valves
- F01L3/16—Cooling of valves by means of a fluid flowing through or along valve, e.g. air
- F01L3/18—Liquid cooling of valve
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
- Multiple-Way Valves (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a valve assembly, comprising a valve (4) which is associated with a gas conduit (8), has a valve disc (6) and a valve stem (7) supporting said valve disc and is provided with a cooling device. In said valve assembly, a simple design, high functional reliability and a good energy balance can be achieved by using a gaseous cooling medium or a cooling medium which consists at least partially of components that can be converted into a gaseous state. The cooling medium is discharged as gas into a gas conduit (8) via at least one outlet chamber (17), and for this purpose each discharge duct (19) originating from the outlet chamber (17) opens into a gas conduit (8).
Description
Technical field
The present invention relates to a kind of valve gear, comprise a gas channel configuration for motor particularly large two-stroke diesel engine, there is the valve stem on valve top and this valve top of supporting, be provided with the valve of a cooling unit, wherein cooling unit has at least one and can to apply cooling medium, the flow path extended in valve, the supply chamber of the supplied cooling medium that described flow path is defined by valve stem with at least one is communicated with and is communicated with at least one room of draining defined by valve stem, from draining at least one purging line of pass-out room.Other theme relates to the guide pin bushing of a kind of valve housing, a kind of valve and a kind of valve gear for the above-mentioned type and a kind of motor with the valve gear of the above-mentioned type.
Background technique
Such as by the device of the known a kind of the above-mentioned type of DK 173 452 B1.Be applied in cooling water at this cooling unit, cooling water separates from the cooling water circulation of an engine side and re-enters wherein.In order to avoid cooling water leakage, must at this relatively reliably seal supply chamber and drain room by valve stem, this needs high expense.In addition set out thus, at least the Sealing towards gas channel of bottom is subject to high heat load in exhaust valve device, and this adversely has an impact to the life-span.Add that cooling water and tight Sealing may destroy the lubricating film produced on valve stem, this may cause the lost of life of overall apparatus equally.
Another shortcoming of known device is, the heat taken away by cooling water lost and must be destroyed in cooling unit, and this adversely may affect the total efficiency of the motor being equipped with known devices.In a similar device known by DE 102 49 941 B4, although attempted to stop in the mode of interrupting cooling water flow by beat to take away too many heat.But this causes the structure expense improved, and does not avoid other shortcoming of mentioned kind type.
Although obtain a kind of air-cooled exhaust valve for four stroke engine configuration by JP 54-10840.But air is not sent back to and is drained room and remove therefrom.Or rather, valve top is provided with some downward or outwardly open in the region of valve seat holes, the cooling-air consumed via the blowout of this some holes.The hole of top side must cause the significant weakening of valve, and it must be compensated by other reinforcement, and this improves the expense of structure.Dangerous in this this known device external, the air blown out in the region of valve seat may enter when valve is opened in active chamber or hinder waste gas to drain.
Summary of the invention
Therefore set out thus and the object of the invention is, improve a kind of device starting described type like this, so that not only reach a kind of simple structural type and reliable cooling action, and also avoid energy loss to the full extent simultaneously.
According to the present invention, this object reaches like this, and the flow path extended in valve of cooling unit is applied in a kind of cooling medium of gaseous state and cooling medium drains room via at least one and purging line can import in the region of an adjacent purging line of scavenge duct.Purging line the leading in gas channel away from the region of valve seat on a top of each setting correspondingly.The feature with a gas channel and a valve housing by space for valve arranged in the region on upper channel border is, by arranging at least one flow path between space and scavenge duct.Be according to the feature of valve of the present invention, that it is applicable to apply a kind of gaseous state or gaseous state at least partly medium, particularly cooling-air.
Concept " cooling medium of gaseous state " here should be understood like this, namely first or generally cooling medium can be gaseous state or also additionally can also comprise the component that can change into gaseous state wherein, or even can be made up of this kind of component completely.Cooling medium is gaseous state correspondingly first at least partly and/or comprises the component that can change into gaseous state at least partly.The scheme of the cooling medium of gaseous state generally is normally comprised at this.Under any circumstance when cooling medium enters gas channel, it is all gaseous state.
Use a kind of cooling medium of gaseous state in above-mentioned meaning can remove cooling medium via gas channel in an advantageous manner, gas channel can relate to the scavenge duct of any type, thus can abandon the removing device of oneself, this simplify structural type.Obtain another advantage at the same time, namely can not lose the heat held by cooling medium, but be supplied to the mass flow rate flowing through gas channel, it may be used for drive train, as exhaust turbine etc.Upper area cooled gas being imported to gas channel also guarantees that the cooled gas that gas exchange process can not be imported disturbs.Can find out that another very special advantage is; the small leakage of the cooling medium of gaseous state is harmless; thus can abandon in valve stem and the strict sealing for the gap opposing gas passage between its guide pin bushing configured; this is simplified structure form not only, but also protects lubricating film and correspondingly also advantageously to having an impact entire life.This advantage is also strengthened like this, namely apply cooled gas, each room of being defined by valve stem can be in the region of the abutting gas passage of the guide pin bushing that configures for valve stem, protects its guiding area above it from here whereby.In addition set out thus, via purging line and the cooled gas if desired in leakage-gap inflow gas passage automatically clean described flow path keep it to open wide.This self_cleaning effect guarantees high functional reliability.
Meet object, the exhaust valve that the present invention configures for exhaust passage with is applied relevantly, and here above-mentioned each advantage is obtained particularly well.
Another favourable measure can be, the port of purging line is along to lead to gas channel from the catadromous gas flow direction of valve in gas channel and point to the direction of gas flow.This leeward of port of purging line arranges prevention, and products of combustion easily may enter in purging line from gas channel.In addition reach certain pumping action in this case, this contributes to the flowing of cooled gas in its passage by cooling unit.
Meet object, supply chamber and drain room circumferentially arranging to dislocation toward each other at valve stem.Can be advantageously disposed in same level in these these rooms, this guarantees a kind of compact structure form.
Meet object, the stroke that supply chamber and the height of draining room at least equal valve adds the net axial width of the import or export of the flow path of valve side.Guarantee whereby, can described flow path be flow through by cooling medium constantly and not interrupt.
Another favourable measure can be, valve is rotatable around its axis by single-revolution device, and the import of the flow path of valve side and outlet are arranged like this, so that import and an outlet and a supply chamber or drain room and be communicated with at least respectively.The rotation of valve cause in an advantageous manner suction side and outlet side then with the exchange of hot side and cold side, thus in valve, produce more appropriate temperature.
Meet object, at least one supply chamber is drained room with at least one and preferably mutually to be arranged at diametrically opposite about valve axis is mutually relative, wherein drains room and can be advantageously disposed on towards on that side of the outlet of gas channel.This is convenient to reach above-mentioned advantage.
Another measure meeting object can be, valve stem circumferentially toward each other dislocation supply chamber and drain room and be separated from each other by some partitions, its width at least equals the import of the flow path of valve side and the clear width of outlet.Short-circuit flow can be avoided in such a way.
Advantageously, valve top can have at least one around annular pass, it flows branch road before configuring with at least one of the flow path of valve side respectively via some branches and at least one backflow branch road configured is connected.Obtain a kind of reliable heat radiation in valve region from being subject to heat load strong especially whereby.
According to the particularly preferred further formation of one of the present invention, air is used as cooled gas, meets object, air can be separate the supplier of engine configurations from one.This supplier generally comprises a compressor and a cooler be arranged on thereafter, wherein meets object, and air goes downstream from compressor and preferably separates between compressor and cooler.The air of compression has high density and high flow velocity in an advantageous manner, and this produces Beneficial Effect to cooling action.As long as separate air before cooling, then also expect higher water content, this supports cooling action further.Cooling even without air generally also produces an enough temperature difference relative to exhaust gas temperature.Valve generally suffers this exhaust gas temperature.
Advantageously, be made up of a kind of material blends of preferable alloy according to the preferred each element of at least one element of valve gear of the present invention, this material blends has again some simple substance, wherein that involved element of at least one spectral distribution identification valve gear be recorded of the pure component of these simple substance or the material blends of those elements.This can form the criterion of the later configuration determining each element.In order to support this advantage, can add or alternatively a mark that preferably can read from the outside in the assembled state is preferably being set on each element according at least one element of valve gear of the present invention, a kind of classification according to parameter as tolerance of size, installed date and/or setting life-span etc. of involved element/each element is drawn by this mark, wherein mark can be arranged on one especially and not contact in the memory module that the preferred electron that can read can read, such as, in a RFID chip.These measures can realize a kind of simple especially inspection and not only simplify the Licensing Methods maintaining and/or keep in repair but also also simplify in most instances needs thus.
Other favourable form of implementation of above-mentioned measure describes with the further formation meeting object can learn in more detail from the following example by accompanying drawing.
Accompanying drawing explanation
In accompanying drawing described below:
Fig. 1 has the sectional drawing of the upper area of the cylinder of the exhaust valve of exhaust valve housing and the configuration loaded onto;
The sectional drawing of the lower area of Fig. 2 exhaust valve and
Fig. 3-6 is for supply chamber and the Multi-instance being arranged on the setting of the flow path of valve side of draining room and be communicated with it.
Embodiment
Main application fields of the present invention is the exhaust valve device of large-sized two-stroke motor particularly large two-stroke diesel engine, as they are for navigation driving etc.Such motor generally has the interior suction port for new combustion gas of the lower area being arranged on each cylinder and in the cylinder head of each cylinder, is separately positioned on the outlet port at center, for this outlet port configures a valve.The exhaust valve be here arranged in upper cylinder region is subject to heat load strong especially, thus cooling meets object.
Cylinder 1 in FIG defines an active chamber 2, this active chamber in its unshowned lower area via being applied scavenging gas by the controllable suction port of same unshowned piston and its coboundary comprises an outlet port 3.For this outlet port configures the exhaust valve hereinafter referred to as valve 4 that is configured to poppet valve, it have one with surround the coefficient valve top 6 of valve seat 5 of outlet port and a valve stem upwards walked by it 7.A gas channel bending, that passed by valve stem 7, that be referred to as scavenge duct 8 is in the following description connected on this outlet port 3, and gas channel plays exhaust passage effect here.A valve housing 10 configured for valve 4 is installed in the cylinder head 9 of the coboundary forming active chamber 2, and bending scavenge duct 8 is integrated in valve housing and valve 4 guides on valve housing with valve stem 7.For this reason valve housing 10 be provided with in a region being arranged on the coboundary of scavenge duct 8, be roughly concentric with outlet port 3 arrange by space 11, one is inserted into this by space by the guide pin bushing 12 that valve stem 7 passes, and the underpart of guide pin bushing extends to scavenge duct 8.In order to handle the valve 4 being configured to poppet valve, one can be arranged and be installed to Effector on valve housing 10, that be not shown in further detail here.Valve housing 10 together with valve 4 hereinafter referred to as ventilation door device.The structure of shown air interchanger is naturally just exemplary.Certain all parts also can have different shapes and/or position or more or less mutually integrated, thus mutual supporting surface and border have different changes and/or different positions maybe can fully phase out.
Valve 4 is provided with a cooling unit, to prevent valve top 6 overheated.Arrange for this reason one that extend in valve 4, that represented by flow arrow in FIG, form the flow path 13 of a cooling circuit, it can apply a kind of cooling medium.The radial direction that this flow path 13 1 aspect is communicated with via the supply chamber 15 that at least one radial inlet 14 being arranged on valve side and at least one are configured to the space of guide pin bushing 12 and is arranged on valve side via at least one on the other hand exports 16 the drain rooms 17 that are configured to the space of guide pin bushing 12 same with at least one and is communicated with.Supply chamber 15 and drain room 17 inner radial by valve stem 7 radially outer being defined by the wall in space 11 in the example shown by accommodation guide pin bushing 12.But the multi-form of room 15,17 is also possible, wherein said each room is only opened wide to inner radial and is defined by the material of guide pin bushing 12 on that opposed side.In this case such as by some adjoin each other, mutually split, axial bore in the sleeve that is worked into guide pin bushing 12 or oneself forms described each room.They meet destination and are configured to blind hole, that side that they open wide at it is closed, wherein in a kind of form of implementation with two sleeves, that is automatically close each blind hole with a guide pin bushing that is short, that be only limited to guiding area and a sleeve that dock with it, that comprise some blind holes.
The region of the adjacent scavenge duct 8 of the bottom of guide pin bushing 12 comprises supply chamber and drains room 15,17 and therefore for cooling unit configures.Guide pin bushing 12 be therefore in top, comprise the guiding of valve stem 7 and the sealing of guiding clearance away from the region of scavenge duct 8.In above-mentioned lower area, in the example shown seal arrangement is not set under normal circumstances.But nature can the lower end region of guide pin bushing 12 arrange that some are not here shown in further detail, surround valve stem 7 scrape off device, so that in the gap stoping dirty grain to enter between valve stem 7 and guide pin bushing 12.
The service 18 that supply chamber 15 is configured to via at least one the hole system be arranged in valve housing 10 can supply cooling medium.Service 10 is connected on a cooling medium source that is applicable, that be not here shown in further detail for this reason.At least one purging line 19 is from draining room 17 out.Supply chamber and drain room 15,17 valve stem 7 circumferentially toward each other dislocation arrange, what meet object is diametrically arranging opposed to each other.The interface playing import and outlet 14 or 17 effect of the same flow path 13 being applicable to valve side.At this advantageously, room 17 is drained on that side of the upper end portion 8a towards scavenge duct 8 of valve 4.
According to the present invention, the cooling unit for valve 4 configuration is applied in a kind of cooling medium of gaseous state." gaseous state " here should be understood like this, and namely freezing mixture has a kind of state of aggregation of gaseous state or can comprise the such as transpirable component that can change into gaseous state completely or at least in part and be eliminated as gas and can import scavenge duct 8 via purging line 19 for this reason.Purging line 19 is corresponding be configured to simply from pass-out the underpart of draining room 17, the bleed hole led in scavenge duct 8, it through valve housing 10 define the wall by space 11 and formed correspondingly one define drain room 17 by the flow path space 11 and scavenge duct 8.Must draw thus the port of the side, exhaust passage of purging line 19 one be the maximum curvature radius configuration of bending scavenge duct 8, towards the position of in the region of channel end 8a.
Meet object, air is used as cooling medium.The air feeder that it can be engine configurations from one particularly separates scavenging supplier.Scavenging supplier generally comprises one by the drivable compressor with rearmounted cooler of waste gas.Meet object, the air being used as cooling medium goes downstream from compressor and separates, thus the cooling-air used has high pressure then has high density and also have high flow velocity due to high pressure.Advantageously, air is extracted in the region between compressor and the cooler being arranged on thereafter, namely still before cooling.Uncooled air comprises many moistures at this, and this improves cooling action, causes thus simultaneously, and the temperature of uncooled air also lower than exhaust gas temperature, thus produces one for the temperature difference fully required for cooling valve 4.
Advantageously, the port of the channel side of purging line 19 is about the leeward setting of valve 4, that is described port to arrange from valve 4 about the exhaust-gas flow in scavenge duct 8 and points to flow direction with going downstream, that is towards scavenge duct 8 upper end portion 8a over there.
The flow path 13 extended in valve 4 has one and flows region and the recirculation zone with 13b mark with before 13a mark in fig. 2.In addition arrange one in valve top 6 around circulating line 20, it is connected with front stream region 13a and recirculation zone 13b by some branches 21.Front stream region 13a to be connected with supply chamber 15 via import 14 and recirculation zone 13b via outlet 16 with drain room 17 and be connected.By the rotation of valve 4, the transposition of import 14 and outlet 16 can be exchanged, thus show that a function exchanges like this, otherwise so that the interface previously playing outlet effect play now import effect or.Also the commutation flowing through the flow direction of the cooling medium of flow path 13 is realized in contrast.Reach thus, what the interface of two regions 13a, 13b of flow path 13 transformed to cold supply chamber 15 or heat by beat drains room 17, and this causes the good equalized temperature of one in whole valve 4.In order to rotary valve 4, arrange a swivel gear 22, it is consisted of the blade being arranged on the radial direction on bar 7 in the example shown, and the waste gas flowing through scavenge duct 8 flows through from these blade sides.But also can imagine, a mechanical swivel gear is set in the region of valve operation device.
In order to form flow path 13, as illustrated in fig. 1 and 2, valve 4 is provided with a center hole 23 made from valve top 6 over there, and it is divided into multiple region by one or more dividing plate 24.As can be seen from Figure 2, the inserts 25 of the hole 23 of over there making from valve top 6 by a welding in the region of its underpart is closed.The upper end portion in hole 23 is at least in the region of import or export 14 or 16, preferably a little above it.In the example according to Fig. 2, circulating line 20 is also configured to the space manufactured from below, and it is closed by the inserts 26 of an annular of welding from below afterwards.
In the form of implementation of pressing Fig. 3, it is semicircular region that hole 23 is divided into two cross sections side by side by a dividing plate 24, and they play front stream region or the recirculation zone effect of flow path 13.For the connection space that each area configurations one is radial, they play import 14 or outlet 16 effect.The inner radial arranging two 180 ° of dislocations toward each other outside valve stem 7 here comprises by valve stem 7 and passing radially outward the room that the inwall that overlapped by the housing in space 11 defined, one of them plays the supply chamber 15 be connected with service 18 and to act on and another plays and drains room 17 and act on, from wherein purging line 19 described in pass-out.Two rooms 15,17 are separated from each other by some partitions 27, and its thickness has at least equaled the clear width of the wall port of import 14 or outlet 16 effect, thus avoids the short-circuit flow from room 15 to room 17.
In the form of implementation of pressing Fig. 4, two cross one another dividing plates 24 are set, thus the cavity that passing hole 23 is formed is divided into four flow regions, " representing, they are front stream region 13a or the recirculation zone 13b configuration of flow path 13 to mark 13 ', 13 as by arranging in pairs in couples.Each of four flow regions consisted of two dividing plates 24 is provided with the interface that is played import 14 or outlet 16 effect.In the form of implementation of pressing Fig. 4, there are two imports 14 and two outlets 16 correspondingly, they are drained the room that room 17 acts on and are communicated with playing supply chamber 15 or play in couples respectively.
In the form of implementation of pressing Fig. 4, as mentioned above, valve stem 7 circumferentially arrange two diametrically mutually opposing, play supply chamber 15 or drain the room that room 17 acts on.The circumferential spaces of two rooms equals the circumferential spaces of the port forming import or export 14,16 at the most, thus under valve turns around situation, always open an import 14 and an outlet 16.Corresponding is, separately the thickness of each partition 27 of two rooms does not allow the circumferential spaces exceeding the wall port forming import or export 14,16, two play supply chamber or drain room that room 15,17 acts on prolongation circumferentially at least equal every two at the circumferentially circumferential spaces of wall port playing import or export 14,16 effect in succession, thus guarantee, respectively during closedown port, always open the port that another exercises identical function completely.
Substantially the form of implementation by Fig. 4 is met by the form of implementation of Fig. 5.But with its unlike, not here arrange two circumferentially in the diametrically mutually opposing room of playing supply chamber or draining that room 15,17 acts on, but four circumferentially equally distributed rooms at valve stem 7 are set, they play supply chamber 15 respectively in couples and drain room 17 and act on.Certainly also can imagine, hole 23 is subdivided into more than four flow regions and/or circumferentially also arranging more than four rooms at valve stem 7.For supply chamber or drain room 15,17 configure each service and purging line 18,19 in the example shown about the axis accurately radial location of valve stem 7.But certainly also can imagine different extensions.Such as two purging line 19 can have one toward each other at an angle or almost parallel location and like this, two purging line 19 can be led in scavenge duct along the directed direction that goes downstream about the flow direction in scavenge duct 8 like this.
In the form of implementation of pressing Fig. 6, again arrange two in diametrically mutually opposing room, one to play supply chamber 15 effect and one and plays and drain room 17 and act on.Outwards draw from the center hole 23 of valve stem 7 multiple, be here three radial wall ports leading to room 15 or 17 being evenly distributed on circumferentially, they can play import 14 or outlet 16 effect.The each wall port playing import or export 14 or 16 effect meets destination and arranges like this, so that in hole 23, produce a kind of eddy flow with the flow region declined and rise of rotation.This point can also be contributed to by the suitable inclination of relative opening axis and/or radial direction.The cavity that passing hole 23 is formed does not need inner segmentation at this.Only arrange a center-pole 28 in the example shown, it can support to form a kind of rotational flow.
The motor of current type here, as large two-stroke diesel engine, completes during fabrication in the be everlasting newly formed component of application or component group situation.But also tool is advantageous compared with completely newly manufacturing is to set, the applicable part/region of the component group of the new remainder applying different component group and other aspects reusing compatible structure form wearing and tearing.Realizing according to valve gear of the present invention with the mode being conducive to environmental protection or comprising the component group of this valve gear or the manufacture/maintenance of even whole motor therefore by very economical, because not only make use of the achievement of the effort expended in the past but also make use of material.Thereby reduce the use of waste material and new raw material simultaneously.
But the danger existed at this is, some components, as valve housing etc., with in batch in appearance actual similar version make, they with naked eyes based on its profile or can only difficulty and effectively can not distinguish/identify by simple method of measurement.Therefore reporting errors selects the unaccommodated danger shown according to exhaust valve of the present invention therewith, and it causes according to the functional defect in motor of the present invention particularly large two-stroke diesel engine in assembling after a while.Emergency repair that is unexpected and that expend may be caused thus between maintenance period.Therefore with due to for proving that the part that may need according to component of the present invention is on a grand scale, so preferably marked with the data that can easily identify in different occasions by such component, these data fit destinations can read non-contiguously.A RFID chip preferably can be set, be stored as the data clearly determining/identify a component group or its part thereon.Also dissimilar mark can be imagined.
In at least one mark of important parts, preferably hold the other data for confirming component, what belong to this preferably also should comprise manufactures, license (IMO), passing data and the use in future that is possible or that plan or service data.
In an exhaust valve, at least one mark be preferably in described valve relative to the end on valve top whole axial length 3/4ths within.Guarantee thus, at least this mark (electronic equipment of a usual relative high temperatures sensitivity) keep a position, in this position it can not by awfully hot waste gas eliminate or destroy, described waste gas when exhaust valve is opened from firing chamber out.Therefore this mark can expose like this, so that utilizes discontiguous device can read this mark via the firing chamber of this exhaust valve.Read usually before motor entry into service/entry into service time realize, to provide data/parameter to the control system of motor.But, utilize discontiguous device to read such mark to detect the data of at least one parts exhaust valve or connected parts as described in one of them, also can implement between the on-stream period according to large-scale diesel engine of the present invention.Personnel thus, such as IMO's or a marine hull insurance company inspector can verify the exhaust valve etc. of installation, to allow the continuation of motor to run.The data of this permission can be read in mark simultaneously, and therefore need not stop motor.
Another adds or alternative adoptable identifying method can be, adds that the material that can easily identify is as mark.A kind of material blends is used for involved component or an at least one section, this material blends has some different material components for this reason.So can use the CONCENTRATION DISTRIBUTION of a kind of combination of each pure component and/or other components, it is detectable as the combination of the low respective concentration of each pure metal or other pure material, so that the component involved by identifying.For reliability reasons, then the component one with different combined concentration distributions returns original place as " NO ", because its material may not have required characteristic.
Although more than illustrate in greater detail each preferred embodiment of the present invention, a kind of restriction should do not related to thus.Or rather, for technician provides a series of possibility, to make the situation being adapted to special circumstances based on conception of the present invention.So such as also can imagine, replace in valve stem 7 or to be additional to by the segmentation in one or more dividing plate 24 pairs of holes 23 to form branch road 13a, 13b of flow path 13, some are set such as with the passage that the form in each hole exists.Can imagine equally, replace service or the purging line 18,19 of each mark, the subtube that two or more are adjacent is set, to make the orientation of requirement become easy in the region that it leads to the port of scavenge duct.This is applicable to all examples by Fig. 3-6.In addition the cross section replacing described room 15,17 is fan-shaped configuration, also can arrange one of described each room by some simple holes or the form of implementation that forms as described above by the hole of some mutual splits adjoined each other.This is also applicable to all examples illustrated.
Claims (47)
1. valve gear, comprise that a gas channel (8) for motor configures, there is the valve stem (7) on valve top (6) and this valve top of supporting, be provided with the valve (4) of a cooling unit, wherein cooling unit has at least one and can to apply cooling medium, the flow path (13) extended in valve (4), the supply chamber (15) of the supplied cooling medium that described flow path is defined by valve stem (7) with at least one is communicated with and is communicated with at least one room (17) of draining defined by valve stem (7), from draining at least one purging line of pass-out (19) room, it is characterized in that, the cooling medium being applied to the flow path (13) extended in valve (4) of cooling unit is gaseous state at least partly and/or comprises the component that can change into gaseous state at least in part, and this cooling medium drains room (17) and purging line (19) via at least one can to import as gas that of gas channel (8) is adjacent to drain in the region of room (17).
2. according to valve gear according to claim 1, it is characterized in that, valve (4) is configured to exhaust valve, and this exhaust valve is an exhaust passage configuration forming scavenge duct (8).
3. according to the valve gear described in claim 1 or 2, it is characterized in that, the port of the channel side of purging line (19) points to the direction of gas flow in gas channel (8).
4. according to the valve gear described in claim 1 or 2, it is characterized in that, the port of purging line (19) is arranged to the catadromous gas flow direction of gas channel (8) along in gas channel (8) from valve (4).
5. according to the valve gear described in claim 1 or 2, it is characterized in that, gas channel is configured to bend pipe, and the port of purging line (19) is arranged in the region of the maximum curvature radius of bend pipe.
6. according to the valve gear described in claim 1 or 2, it is characterized in that, supply chamber and drain room (15,17) and be arranged on valve stem (7) circumferentially.
7. according to the valve gear described in claim 1 or 2, it is characterized in that, supply chamber and drain room (15,17) and be arranged in same level.
8. according to the valve gear described in claim 1 or 2, it is characterized in that, the stroke that supply chamber and the height of draining room (15,17) at least equal valve (4) adds the clean axial width of an import or export (14,16) of the flow path (13) of valve side.
9. according to the valve gear described in claim 1 or 2, it is characterized in that, valve (4) is rotatable around its axis by a swivel gear (22), and the import of the flow path of valve side (13) and outlet (14,16) are arranged like this, thus at least one import (14) and supply chamber (15) connected sum at least one export (16) and drain room (17) and be communicated with.
10., according to the valve gear described in claim 1 or 2, it is characterized in that, at least one supply chamber (15) and at least one drain room (17) and mutually arrange at diametrically opposite about valve axis.
11. according to the valve gear described in claim 1 or 2, it is characterized in that, at the circumferentially supply chamber that arranges of dislocation and drain room (15,17) and be separated from each other by some partitions (27) toward each other of valve stem (7), the stop thickness of partition at least equals the clean horizontal width of an import or export (14,16) of the flow path (13) of valve side.
12., according to the valve gear described in claim 1 or 2, is characterized in that, the flow path (13) of valve side has at least one front stream region (13a) and at least one recirculation zone (13b).
13., according to valve gear according to claim 12, is characterized in that, before each, stream region (13a) and recirculation zone (13b) have multiple flow region.
14. according to the valve gear described in claim 1 or 2, it is characterized in that, valve top (6) be provided with one around annular pass (20), this annular pass is connected with front stream region (13a) and recirculation zone (13b) via some branches (21).
15. according to the valve gear described in claim 1 or 2, it is characterized in that, for valve stem (7) configuration guide pin bushing (12), this guide pin bushing have a top guiding area away from gas channel (8) and an abutting gas passage (8), comprise supply chamber and drain the region of room (15,17).
16., according to valve gear according to claim 15, is characterized in that, valve stem (7) is only at supply chamber with drain the relative guide pin bushing in top, room (15,17) (12) and seal.
17., according to the valve gear described in claim 1 or 2, is characterized in that, air is used as cooling medium.
18. according to valve gear according to claim 17, it is characterized in that, the air being used as cooling medium separates from the air feeder that is engine configurations and can supply the flow path (13) of valve side via a service (18).
19. according to valve gear according to claim 18, it is characterized in that, air feeder for engine configurations has at least one compressor and at least one arranges cooler after the compressor, and the air that can supply the flow path (13) of valve side goes downstream from compressor and separates.
20., according to valve gear according to claim 19, is characterized in that, air separates between compressor and cooler.
21. according to the valve gear described in claim 1 or 2, it is characterized in that, at least one element of valve gear is made up of a kind of material blends of metal, this material blends has some simple substance, wherein the material blends of element that relates to of at least one spectral distribution identification be recorded of the pure component of these simple substance.
22. according to valve gear according to claim 21, it is characterized in that, at least one element of valve gear has a mark that can read from the outside in the assembled state, draw a kind of classification according to determining parameter by this mark, wherein mark is arranged on one and does not contact in memory module that can read, electronics.
23., according to the valve gear described in claim 1 or 2, is characterized in that, described motor is big-block engine, and the gas channel that described valve gear (4) is motor configures.
24., according to valve gear according to claim 23, is characterized in that, described big-block engine is large two-stroke diesel engine.
25. valve housings, this valve housing be applicable to according to valve gear according to claim 1 and have a gas channel (8) and one be arranged in the region of the coboundary of gas channel (8) for valve (4) by space (11), it is characterized in that, by arranging at least one flow path for gaseous medium between space (11) and gas channel (8).
26. according to valve housing according to claim 25, it is characterized in that, in the region passing through space (11), some rooms radially-inwardly opened wide are set, for the formation of a supply chamber (15) with drain room (17), wherein from pass-out wherein at least one room, at least one leads to the flow path for gaseous medium of gas channel (8).
27., according to the valve housing described in claim 25 or 26, is characterized in that, the belonging to valve housing at least partially and formed by the material on the basis that becomes this valve housing of the boundary wall of each room radially-inwardly opened wide.
28. according to valve housing according to claim 26, it is characterized in that, by in the region in space (11) about supply chamber (15) with drain room (17) and arrange some guiding devices for the axial dislocation of valve stem, these guiding devices are the ferrule configuration of closed each adjacent room.
29. according to the valve housing described in claim 25 or 26, it is characterized in that, a guide pin bushing (12) is inserted into by space (11), this guide pin bushing is at least provided with each room radially-inwardly opened wide below guiding area, wherein from least one room pass-out at least one lead to the flow path of gas channel (8).
30., according to valve housing according to claim 26, is characterized in that, the port leading to the flow path of gas channel (8) about configure for valve (4) by space (11) leeward setting.
31. valves, this valve is applicable to according to valve gear according to claim 1 and is provided with a cooling unit, it is characterized in that, cooling unit is applicable to cooling medium that is that apply a kind of at least part of gaseous state and/or that comprise the component that can change into gaseous state at least in part.
32. according to valve according to claim 31, it is characterized in that, described valve be provided with one there is one before flow the flow path of region (13a) and a recirculation zone (13b), before at least one region of run duration flow path is intermittently play, flow region (13a) or recirculation zone (13b) effect.
33., according to the valve described in claim 31 or 32, is characterized in that, described valve is configured to exhaust valve.
34., according to the valve described in claim 31 or 32, is characterized in that, described valve is provided with a swivel gear (22) consisted of the radial blade be arranged on valve stem (7).
35. according to the valve described in claim 31 or 32, it is characterized in that, described valve has a flow path (13) comprising at least one front stream region (13a) and at least one recirculation zone (13b) extended therein.
36., according to valve according to claim 35, is characterized in that, being configured at least partially of front stream region (13a) and/or recirculation zone (13b) is multichannel.
37. according to valve according to claim 32, it is characterized in that, the valve top (6) of described valve be provided with one around annular pass (20), this annular pass is connected with front stream region (13a) and recirculation zone (13b) via some branches (21).
38. according to valve according to claim 32, it is characterized in that, the import of the flow path (13) of valve side and outlet (14,16) are arranged on of valve stem (7) and are applicable to in a coefficient region of sleeve.
39. according to valve according to claim 38, it is characterized in that, the import of the flow path (13) of valve side and outlet (14,16) are arranged on the below with a coefficient region of guide pin bushing that is applicable to that of valve stem (7) is provided with guide surface.
40. guide pin bushings, this guide pin bushing is applicable to, according to the valve of valve gear according to claim 1, it is characterized in that, described guide pin bushing has a guiding area configured for valve stem (7), and this guiding area is arranged on the top of each room radially-inwardly opened wide.
41., according to guide pin bushing according to claim 40, is characterized in that, each room radially-inwardly opened wide is integrated in guide pin bushing.
42., according to guide pin bushing according to claim 40, is characterized in that, described guide pin bushing has the end of each room that an enclosed radical inwardly opens wide.
43., according to the guide pin bushing one of claim 40-42 Suo Shu, is characterized in that, each room radially-inwardly opened wide is consisted of the axial bore of each mutual split.
44. motors, is characterized in that, described motor is equipped with at least one according to the valve gear described in claim 1 or 2.
45., according to motor according to claim 44, is characterized in that, described motor is a motor by mistake except valve gear.
46. according to the motor described in claim 44 or 45, it is characterized in that, at least one element of motor has a mark that can read from the outside in the assembled state, a kind of classification according to determining parameter is drawn by this mark, wherein mark is arranged on one and does not contact in memory module that can read, electronics, and this memory module is configured to RFID chip.
47., according to motor according to claim 46, is characterized in that, mark forms like this and arranges, thus described in be marked at run duration and can read.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010011070A DE102010011070B4 (en) | 2010-03-11 | 2010-03-11 | valve assembly |
| DE102010011070.1 | 2010-03-11 | ||
| PCT/EP2011/001059 WO2011110308A2 (en) | 2010-03-11 | 2011-03-03 | Valve assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102791966A CN102791966A (en) | 2012-11-21 |
| CN102791966B true CN102791966B (en) | 2015-04-01 |
Family
ID=44507855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180013416.1A Active CN102791966B (en) | 2010-03-11 | 2011-03-03 | Valve assembly |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5688667B2 (en) |
| KR (1) | KR101384086B1 (en) |
| CN (1) | CN102791966B (en) |
| DE (1) | DE102010011070B4 (en) |
| WO (1) | WO2011110308A2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6091008B2 (en) | 2013-11-18 | 2017-03-08 | 三菱重工業株式会社 | Exhaust valve valve mechanism, diesel engine, and exhaust valve cooling method for exhaust valve valve mechanism |
| RU2567482C2 (en) * | 2014-03-18 | 2015-11-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Елецкий государственный университет им. И.А. Бунина" | Diesel engine valve gear |
| CN105587359A (en) * | 2016-03-09 | 2016-05-18 | 广西玉柴机器股份有限公司 | Air inlet system of engine |
| DK179175B1 (en) * | 2016-03-16 | 2018-01-08 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | A cylinder cover for a large two-stroke turbocharged compression-ignited internal combustion engine |
| CN106246320B (en) * | 2016-08-25 | 2019-02-15 | 国网山西省电力公司大同供电公司 | A kind of device and its control method reducing engine breathing door temperature |
| EP3717753B1 (en) * | 2018-03-14 | 2021-03-03 | Federal-Mogul Valvetrain GmbH | Internally cooled valve with inertial pump |
| CN112539095A (en) * | 2020-11-26 | 2021-03-23 | 潍柴动力股份有限公司 | Valve, cylinder head and engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE670900C (en) * | 1937-01-23 | 1939-01-27 | Motoraktieselskapet Av 1935 | Cooling device for a valve for internal combustion engines provided with cavities for the passage of a gaseous coolant |
| DE19527285A1 (en) * | 1995-07-26 | 1997-01-30 | Ruediger Ufermann | Circulatory cooling for engine valve - has valve containing compression inlet and compression channel |
| CN201129192Y (en) * | 2007-11-20 | 2008-10-08 | 扬动股份有限公司 | Engine valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2544605A (en) * | 1947-11-13 | 1951-03-06 | Mallory Marion | Internal-combustion engine |
| DE1030102B (en) * | 1953-10-27 | 1958-05-14 | Maschf Augsburg Nuernberg Ag | Valve for high performance internal combustion engines |
| US3742712A (en) * | 1970-04-22 | 1973-07-03 | Alfa Romeo Spa | Device for the timed injection of air into the exhaust ducts of an internal combustion engine |
| JPS5410840A (en) * | 1977-06-24 | 1979-01-26 | Hitachi Zosen Corp | Method for supplying cooling air for internal combustion engine air cooling exhaust valve |
| JPS60195316A (en) * | 1984-03-16 | 1985-10-03 | Michio Ozawa | Exhaust valve cooling method |
| JPH07293212A (en) * | 1994-04-28 | 1995-11-07 | Nittan Valve Kk | Exhaust valve cooler |
| DK173452B1 (en) * | 1998-09-09 | 2000-11-20 | Man B & W Diesel As | Valve for an internal combustion engine and method for cooling such a valve |
| DE10249941B4 (en) * | 2002-10-26 | 2005-11-10 | Man B & W Diesel A/S | Method and device for cooling a valve |
-
2010
- 2010-03-11 DE DE102010011070A patent/DE102010011070B4/en active Active
-
2011
- 2011-03-03 WO PCT/EP2011/001059 patent/WO2011110308A2/en active Application Filing
- 2011-03-03 KR KR1020127026419A patent/KR101384086B1/en active IP Right Grant
- 2011-03-03 JP JP2012556405A patent/JP5688667B2/en active Active
- 2011-03-03 CN CN201180013416.1A patent/CN102791966B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE670900C (en) * | 1937-01-23 | 1939-01-27 | Motoraktieselskapet Av 1935 | Cooling device for a valve for internal combustion engines provided with cavities for the passage of a gaseous coolant |
| DE19527285A1 (en) * | 1995-07-26 | 1997-01-30 | Ruediger Ufermann | Circulatory cooling for engine valve - has valve containing compression inlet and compression channel |
| CN201129192Y (en) * | 2007-11-20 | 2008-10-08 | 扬动股份有限公司 | Engine valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5688667B2 (en) | 2015-03-25 |
| WO2011110308A3 (en) | 2011-11-10 |
| JP2013522513A (en) | 2013-06-13 |
| DE102010011070B4 (en) | 2012-04-05 |
| KR20120136390A (en) | 2012-12-18 |
| DE102010011070A1 (en) | 2011-09-15 |
| CN102791966A (en) | 2012-11-21 |
| WO2011110308A2 (en) | 2011-09-15 |
| KR101384086B1 (en) | 2014-04-09 |
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