Lubricating device, cylinder head cover, cylinder head component, system thereof, and oil-lubricated machine
By designing the oil-collection surface and oil accumulation parts in the lubrication device of the oil-lubricating machine, the wear problem caused by the lack of lubricating oil in the cylinder head components is solved, and more efficient lubrication is achieved, improving the safety and economicality of the machine.
Patent Information
- Application Number
- CN202380049474.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-07-06
- Filing Date
- 2023-07-04
- Publication Date
- 2025-02-11
AI Technical Summary
In oil-lubricated machines, the cylinder head components are lacking sufficient lubricating oil, which leads to increased wear, affecting operational safety, maintenance costs and fuel efficiency.
A lubricating device is designed, including an oil collecting surface and an oil accumulation site, which is used to collect oil dust, and the oil accumulation site promotes oil flow to the cylinder head component through gravity and surface tension.
By increasing oil flow to cylinder head components, wear is effectively reduced, operational safety is improved, maintenance costs are reduced and fuel efficiency is improved.
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Figure CN119421997A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a lubricating device for an oil-lubricated machine, which is preferably a reciprocating internal combustion engine, more preferably a stationary gas engine. The present disclosure also relates to a cylinder head cover and a cylinder head component including such a lubricating device. The present disclosure also relates to a system of such a cylinder head cover and a cylinder head component. In addition, the present disclosure relates to an oil-lubricated machine. Technical Background
[0002] In many oil-lubricated machine applications, the components of the cylinder head are lubricated only by oil dust inside the cylinder head cover. Such components typically include, but are not limited to, valve guides, valve rocker arms, and valve springs. In such applications, lubrication occurs when oil dust particles in the form of small oil droplets adhere to the surfaces of the moving parts.
[0003] For most applications, the available oil dust is limited and only a small fraction of the available oil dust particles adhere to the surfaces that need lubrication. In some cases, especially during long operation, the cylinder head components do not receive sufficient lubrication oil. As a result, the wear on these components increases, which is detrimental to operational safety, maintenance costs and fuel efficiency.
[0004] The lubrication device for an oil-lubricated machine, a cylinder head cover, a cylinder head component, a system of a cylinder head cover and a cylinder head component, and an oil-lubricated machine disclosed herein solve one or more of the above-mentioned problems. Summary of the invention
[0005] Starting from the prior art, the object is to provide a simple, cost-effective and reliably operating lubrication device for oil-lubricated machines, in particular for reciprocating internal combustion engines (ICE), more particularly for stationary gas engines.
[0006] This object is achieved by a lubricating device for an oil-lubricated machine having the features of claim 1, a cylinder head cover comprising such a lubricating device having the features of claim 10, a cylinder head component comprising such a lubricating device having the features of claim 12, a system of such a cylinder head cover and cylinder head component having the features of claim 14, and an oil-lubricated machine having the features of claim 15. Preferred embodiments are set forth in the description, the drawings and the dependent claims.
[0007] Accordingly, a lubrication device for an oil-lubricated machine is provided. The lubrication device includes an oil collection surface configured to collect oil dust and an oil accumulation portion configured to promote oil flow from the collected oil dust.
[0008] Furthermore, a cylinder head cover is provided, which includes the lubrication device according to the present disclosure.
[0009] Furthermore, a cylinder head component is provided, which includes the lubrication device according to the present disclosure.
[0010] In addition, a cylinder head cover according to the present disclosure and a system of a cylinder head component according to the present disclosure are provided.
[0011] Furthermore, an oil-lubricated machine is provided, preferably an internal combustion engine (ICE), in particular a gas engine, comprising at least one cylinder head cover according to the disclosure and / or at least one cylinder head component according to the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present disclosure will be more readily understood by reference to the following detailed description when considered in conjunction with the accompanying drawings, in which:
[0013] FIG1 schematically shows a partial view of a cylinder head of an oil-lubricated machine according to the prior art;
[0014] Figure 2 Schematically illustrates an oil lubrication device according to a first embodiment of the present disclosure;
[0015] Figure 3 Schematically shows an oil lubrication device according to a development of the present disclosure;
[0016] Figure 4 Schematically shows an oil lubrication device according to a further development of the present disclosure;
[0017] Figure 5 schematically illustrates an oil lubrication device according to a second embodiment of the present disclosure;
[0018] Figure 6 Schematically showing a cylinder head cover including an oil lubrication device according to a first embodiment of the present disclosure;
[0019] Figure 7 schematically illustrates a cylinder head component including an oil lubrication device according to a second embodiment of the present disclosure; and
[0020] Figure 8 A cylinder head according to the present disclosure and a system of cylinder head components according to the present disclosure are schematically shown. DETAILED DESCRIPTION
[0021] Hereinafter, the present invention will be explained in more detail with reference to the accompanying drawings. In the accompanying drawings, similar elements are denoted by the same reference numerals, and repeated descriptions thereof may be omitted to avoid redundancy.
[0022] The present disclosure generally relates to lubrication applications for lubricating cylinder head components, such as valve guides and other moving parts. In particular, the present disclosure relates to applications in reciprocating internal combustion engines that use sump oil lubrication and sump oil dust to lubricate cylinder head components. In addition, the present disclosure may relate to lubrication applications in gas engines, particularly stationary gas engines.
[0023] In FIG1 , a cylinder head known in the prior art is schematically shown in a partial side view. Accordingly, a cylinder head cover 200 is shown. Inside the cover 200, there is oil dust 110. Such oil dust 110 may, for example, originate from an oil pan that is stirred by moving parts of the engine (not shown in FIG1 ). This oil dust 110 adheres to all inner surfaces of the cylinder head cover 200, including its inner wall and the surfaces of the piston valve 310, the piston valve rocker arm 320 and the piston valve spring 330. Since these parts are moving parts, they need lubrication during operation.
[0024] However, relying solely on such oil-dust lubrication during long periods of operation carries the risk of insufficient lubrication, which is often observed in stationary engines. In addition, the possibility of adding measures to improve lubrication in the cylinder head is limited due to the harsh environment in the cylinder head.
[0025] In view of the above, there is a need for an improved lubrication arrangement for an oil-lubricated machine to achieve optimized lubrication of moving parts within a cylinder head cover.
[0026] exist Figure 2 , a lubrication device 10 according to a first embodiment is schematically shown in a side view. The lubrication device 10 is configured for an oil-lubricated machine. The lubrication device 10 comprises an oil collecting surface 12, which is configured to collect oil dust 110. The lubrication device 10 also comprises an oil accumulation portion 14, which is configured to promote an oil flow 18 from the oil dust 110, which is collected on the oil collecting surface 12.
[0027] In the sense of the present disclosure, the lubrication device 10 can be understood as a passive oil collection and oil delivery device. Oil collection is achieved by passively collecting oil dust using the increased capture cross section provided by the oil collection surface. Likewise, oil flow is achieved passively by mainly utilizing gravity. The latter definition refers to the state in which oil dust is present due to engine operation.
[0028] To this end, the oil collection surface 12 may be any surface configured to provide an oil reservoir derived from oil dust 110 collected from an adjacent gas phase. Additionally, the oil accumulation site 14 may be any shape or form suitable for triggering the oil flow 18 based on the accumulation of collected oil dust 110.
[0029] In the context of the present disclosure, the term "oil film 16" refers to an uninterrupted layer of oil spread over a surface. The term "oil flow 18" refers to the actual flow of lubricating oil between the lubricating device 10 and the part to be lubricated. Thus, the oil flow 18 may include the oil film 16 or consist of the oil film. However, if, for example, there is a gap between the lubricating device 10 and the part to be lubricated, the oil flow 18 may have the form of discrete oil droplets. Furthermore, although the term "oil droplet" is used as a small form of "oil droplet", the two terms are to be understood interchangeably.
[0030] The oil collecting surface 12 of the lubricating device 10 may be configured to collect the oil dust 110 thereon in the form of an oil film 16. To this end, the oil collecting surface 12 may have a surface with a suitable surface quality so that the deposited oil droplets from the oil dust 110 can spread, coalesce and form the oil film 16. The oil collecting surface 12 of the lubricating device 10 may be substantially flat, curved and / or angled.
[0031] like Figure 2 As shown in the embodiment of FIG. 1 , the lubrication device 10 may include a straight edge 20 having a thickness 22, wherein the oil accumulation location 14 may be configured as a local interruption of the straight edge 20, the local interruption including at least one corner 24. More specifically, the oil accumulation location 14 may include a convex portion. By providing such a local interruption of the straight edge, any oil that spreads downward toward a lower potential energy state will be stopped by at least one edge due to the surface tension of the oil.
[0032] At the oil collecting surface 12, the surface tension in the oil film is balanced with gravity. However, when the oil film 16 reaches the oil accumulation site 14, the oil film is locally stopped and a curved liquid-gas interface begins to form. As the oil continues to flow in, a hanging oil droplet is formed, and the weight of the oil droplet continues to increase. At a given stage, gravity overcomes the surface tension, and the oil droplet begins to fall and eventually breaks away. An incremental oil flow 18 is delivered. Therefore, the oil accumulation site 14 can be configured to provide the oil flow 18 in the shape of an oil droplet.
[0033] Droplet formation, droplet fall, and droplet detachment depend on material properties and can be predicted using the dimensionless parameters Bond number Bo and Reynold number Re, which are defined as:
[0034]
[0035] as well as
[0036]
[0037] where R is the radius of the oil droplet, ρ is the fluid density, σ is the surface tension, and η is the fluid viscosity.
[0038] The static aspects of droplet formation and the droplet evolution period leading to droplet detachment are generally considered to be functions of dimensionless Bo and Re numbers, see Eggers, J., Non linear dynamics and breakup of free-surface flows, Rev. Mod. Phys., 69(3), 865-929, 1997.
[0039] To adjust the lubrication intensity, the oil accumulation site 14 may be configured such that under nominal operating conditions, the oil flow 18 includes a predetermined dripping frequency.
[0040] Furthermore, an oil reservoir is provided at the oil accumulation site 14, which may have the shape of a projection, into which the oil film spreads and accumulates. Such a projection may extend in the plane of the oil collecting surface.
[0041] Furthermore, the lubrication device 10 can be configured to be attachable to a cylinder head cover, wherein the oil accumulation area 14 can be configured to provide oil to cylinder head components, in particular piston valves, piston valve rocker arms and / or piston valve springs ( Figure 2 ) provides oil flow.
[0042] according to Figure 2 In a development not shown in the figure, the lubrication device 10 can also include a plurality of oil accumulation locations 14, preferably four oil accumulation locations 14, wherein each oil accumulation location 14 can be configured to provide oil to a dedicated cylinder head component, in particular a piston valve, a piston valve rocker arm and / or a piston valve spring ( Figure 2 An oil flow 18 is provided (not shown).
[0043] exist Figure 3 In FIG. 1 , a further development of the lubrication device 10 of the disclosure is shown. Figure 3 The lubrication device 10 shown is Figure 2 The lubrication device 10 shown differs in that the oil accumulation area 14 may include a recess. The oil accumulation area 14 is configured as a local interruption of the straight edge 20, which includes at least one corner 24. However, the oil film may be accumulated on the inner area of the oil collecting surface 12 instead of accumulating on the inner area of the oil collecting surface 12. Figure 2 Likewise, the oil film accumulation is mainly driven by gravity.
[0044] exist Figure 4 , a further development of the lubrication device 10 according to the disclosure is shown. Figure 4 The lubrication device 10 shown is Figure 2 and Figure 3 The lubrication device 10 shown differs in that the oil accumulation area 14 may comprise a hole, preferably a groove. Figure 4In the development shown, the oil accumulation site 14 is configured as a local interruption of the straight edge 20 along its thickness 22. In this case, the oil film 16 can be accumulated in the groove. In this case, the oil film accumulation is driven by gravity and capillary forces, thereby allowing a stronger accumulation effect.
[0045] exist Figure 5 , a lubrication device 10 according to a second embodiment is schematically shown. The lubrication device 10 is suitable for use in oil-lubricated machines, in particular reciprocating internal combustion engines, such as gas engines. The lubrication device 10 according to the second embodiment further comprises an oil collecting surface 12, which is configured to collect oil dust 110. Furthermore, the lubrication device 10 further comprises an oil accumulation portion 14, which is configured to promote an oil flow 18 from the collected oil dust 110. The same definitions provided in the context of the first embodiment also apply.
[0046] Furthermore, as discussed in the context of the first embodiment, the oil collecting surface 12 of the lubrication device 10 may be further configured to collect oil dust 110 in the form of an oil film 16 thereon.
[0047] like Figures 2 to 4 The various developments explained Figure 5 The second embodiment of the lubricating device 10 shown differs from the first embodiment of the lubricating device 10 in that the oil accumulation portion 14 may be configured to be connected to the cylinder head component 300. Therefore, the lubricating device 10 may be configured so that the oil flow 18 may extend from the oil collecting surface 12 to the cylinder head component 300 via the oil accumulation portion 14. In other words, the oil flow 18 may have the shape of an oil film flow.
[0048] To this end, the oil accumulation area 14 may extend over the entire width of the lubrication device 10. The oil collecting surface 12 may include a flat surface which may be directly attached to the cylinder head component 300 along the oil accumulation area 14. Figure 5 In the embodiment shown in FIG. 1 , the oil collecting surface 12 may further include a curved and / or angled surface configured to be attached to the cylinder head component 300.
[0049] exist Figure 6 , a cylinder head cover 100 is shown in a schematic cross-sectional view. The cylinder head cover 200 includes the lubrication device 10 according to the first embodiment. More specifically, Figure 6 The lubrication device 10 shown corresponds to the Figure 2 The lubrication device discussed in the context of.
[0050] The same principles and definitions provided in the context of the lubrication device according to the first embodiment also apply Figure 6As can be seen from the illustration, the oil dust 110 present in the inner volume of the cylinder head cover 200 can be accumulated on the oil collecting surface 12, which serves as a cross-sectional enhancement for capturing the oil dust 110 inside the cylinder head cover 200.
[0051] After being collected on the oil collecting surface 12, the collected oil dust 110 travels toward the bottom due to gravity and accumulates at the oil accumulation site 14. The actual flow 18 of lubricating oil from the lubrication device 10 to the cylinder head component 300 occurs at the oil accumulation site 14, which promotes the oil flow 18 by releasing the accumulated oil film 16 originating from the collected oil dust 110. According to the present example, the oil flow 18 may have the form of oil droplets.
[0052] Furthermore, the lubrication device 10 can be attached to the top 210 of the cylinder head cover 200, wherein the oil accumulation area 14 can be configured to release oil in the form of oil drops to the cylinder head component 300, in particular the piston valve 310, the piston valve rocker arm and / or the piston valve spring ( Figure 6 An oil flow 18 is provided (not shown).
[0053] according to Figure 6 In an embodiment not shown in the figure, the cylinder head cover 200 may further include a plurality of lubrication devices 10, preferably four. It should be understood by those skilled in the art that each of the plurality of lubrication devices 10 may be configured to provide an oil flow 18 in the form of small oil droplets to the adjacent cylinder head component 300 in the installed state.
[0054] exist Figure 7 , a cylinder head component 300 is schematically shown, which includes a lubricating device 10 according to a second embodiment of the present disclosure. According to the illustrated example, the lubricating device 10 is mounted on a piston valve rocker arm 320, which is a part of the cylinder head component 300.
[0055] For this reason, as mentioned above Figure 5 , the same explanations, principles, and definitions provided for the second embodiment of the lubrication device 10 apply. Accordingly, the oil accumulation portion 14 may be configured to be connected to the cylinder head component 300 so that an oil flow 18 may be established from the oil collection surface 12 via the oil accumulation portion 14 to the cylinder head component 300. In other words, the oil flow 18 may be maintained as an oil film flow.
[0056] from Figure 7It can be seen that the oil dust 110 collected on the oil collecting surface 12 travels downward to the piston valve 310 via the oil accumulation site 14 and the piston valve rocker arm 320 connected to the oil accumulation site 14 of the lubricating device. Therefore, due to the increased capture cross section for the oil dust 110 provided by the oil collecting surface 12 of the lubricating device 10, an increased oil flow 18 can be established to the piston valve 310. As a result, the piston valve 310 and all cylinder head components 300 subjected to lubrication by the oil flow 18 can receive more lubricating oil.
[0057] exist Figure 8 , a cylinder head cover 200 in the sense of the present disclosure and a system of cylinder head components in the sense of the present disclosure are schematically shown.
[0058] In other words, a system of a cylinder head cover 200 including the lubrication device according to the first embodiment and a cylinder head component including the lubrication device according to the second embodiment is shown. More specifically, the cylinder head cover 200 may include the lubrication device according to the present disclosure. Figure 2 Similarly, the cylinder head component 300 may include the lubrication device 10 of the present disclosure. Figure 5 The lubrication device 10 is shown.
[0059] The system of cylinder head cover 200 and cylinder head component 300 may be part of an oil lubricated machine 100. The oil lubricated machine may be a reciprocating internal combustion engine, in particular a gas engine. In addition, the system may be used for oil lubricated machines using an oil pan.
[0060] Utilizing the disclosed system of cylinder head cover and cylinder head component, oil lubrication of the cylinder head component 300 may be maximized.
[0061] It is obvious to those skilled in the art that these embodiments and projects only describe examples of multiple possibilities. Therefore, the embodiments shown here should not be understood to form restrictions on these features and configurations. Any possible combination and configuration of the described features can be selected according to the scope of the present invention.
[0062] This is the case in particular with regard to the following optional features, which can be combined with some or all of the mentioned developments, items and / or features in any technically feasible combination. As an example, the lubricating device may be suitable for use in a reciprocating engine of the internal combustion type, in particular a gas engine. Furthermore, the lubricating device may be suitable for use in a stationary gas engine. The lubricating device may be installed in one or more cylinder heads of an oil-lubricated machine. Furthermore, variations, combinations and multiplications of the lubricating device may also be included in the present disclosure.
[0063] A lubricating device for an oil-lubricated machine may be provided, the lubricating device comprising: an oil collecting surface configured to collect oil dust; and an oil accumulation portion configured to promote oil flow from the collected oil dust. For definitions of the terms "oil collecting surface", "oil accumulation portion", etc., reference may also be made to the descriptions in the accompanying drawings.
[0064] The advantage of providing such a lubricating device is that the oil flow to the cylinder head components that need lubrication is passively increased. Thus, a lubricating device that is cost-effective, easy to install, maintain, and modify, and can be safely operated can be provided.
[0065] According to a further development, the oil collecting surface can be configured to collect oil dust thereon in the form of an oil film. For example, the oil collecting surface can have a surface roughness that is small enough so that an oil film can be formed. It will be appreciated by those skilled in the art that the properties of the oil depend on temperature, impurities, specifications and other factors. Additionally, the properties of the oil dust may vary greatly during operation of an oil-lubricated machine. For this purpose, it is referred to hypothetical conditions under nominal operation of an oil-lubricated engine. Whether the oil collecting surface is suitable for collecting oil dust in the form of an oil film can be identified by simple, direct experiments without causing unnecessary burden.
[0066] The advantage of providing an oil collecting surface configured to collect oil dust in the form of an oil film is that the substance of oil collected on the surface can be transported away from the surface. When the oil film is established, the oil will begin to spread to points of lower potential energy due to gravity. This can be used for oil flow and ultimately for lubricating cylinder head components that require lubrication.
[0067] According to a preferred embodiment, the lubricating device may further include a straight edge having a thickness, wherein the oil accumulation site is identified as a local interruption of the straight edge, the local interruption including at least one corner. By providing such a local interruption of the straight edge including at least one edge, the oil flow spreading to a lower energy state is stopped due to the surface tension of the oil. Therefore, the oil begins to accumulate at this location, forming a curved surface type liquid-gas interface.
[0068] Thereby, the oil reservoir is accumulated at a predetermined location, suitable for lubricating adjacent cylinder head components.
[0069] According to a further development, the oil accumulation location can include elevations, depressions, holes and / or grooves, wherein the oil accumulation location can be configured to provide the oil flow in the shape of oil droplets.
[0070] As the oil film accumulates at the oil accumulation site, the small oil droplets begin to grow. Eventually, the oil droplets break away from the oil accumulation site and fall toward a predetermined point in the oil-lubricated machine, for example, toward a cylinder head component to be lubricated, such as a piston valve, a piston valve rocker arm and / or a piston valve spring. The oil droplets splash onto the component, delivering a corresponding amount of lubricating oil. Thus, an incremental flow of oil is delivered. An advantage of including holes and / or grooves is that, in addition to gravity, capillary forces can help the oil accumulate at the accumulation site.
[0071] According to a further development, the oil accumulation site can be configured such that under nominal operating conditions, the oil flow comprises a predetermined dripping frequency. Thus, lubrication of the component to be lubricated can be set to a predetermined rate. The oil flow can, for example, comprise a dripping frequency of 1 drop per second (1 Hz).
[0072] According to a preferred embodiment, the lubrication device can be configured to be attachable to a cylinder head cover, wherein the oil accumulation site can be configured to provide an oil flow to cylinder head components, in particular piston valves, piston valve rocker arms and / or piston valve springs. According to this embodiment, cylinder tilting, cylinder vibrations and forces acting on the cylinder during operation of the oil-lubricated machine can be taken into account. Thereby, reliable lubrication of the cylinder head components to be lubricated can be achieved.
[0073] According to a preferred embodiment, the lubrication device may further comprise a plurality of oil accumulation locations, preferably four oil accumulation locations, wherein each oil accumulation location may be configured to provide an oil flow to a dedicated cylinder head component, in particular a piston valve, a piston valve rocker arm and / or a piston valve spring.
[0074] According to this embodiment, the lubrication device may further comprise a plurality of oil collecting surfaces. The advantage of providing a plurality of oil collecting surfaces and / or oil accumulation locations is that the oil flow can be delivered to a plurality of cylinder head components to be lubricated.
[0075] Thereby, safe operation of the oil-lubricated machine can be achieved and excessive wear due to insufficient lubrication can be avoided.
[0076] According to an alternative embodiment of the lubricating device, the lubricating device may be configured to be connected to the cylinder head component so that the oil flows from the oil collecting surface via the oil accumulation site to the cylinder head component.
[0077] According to this embodiment, the oil flow can be purely an oil film flow. This has the advantage that the oil flow can be predicted more accurately because the oil droplet phenomenon does not need to be considered. Variations inherent to the oil or caused by the environment are less likely to affect the oil flow. Thus, oil lubrication can be achieved in a more stable and predictable manner.
[0078] According to a preferred development of this embodiment, the oil collecting surface may comprise a flat, curved and / or angled surface which is configured to be attached to the cylinder head component to be lubricated. Thus, the collecting cross section for collecting oil dust in the air can be increased and customized according to the given environment in the cylinder head cover.
[0079] A cylinder head cover may be provided, the cylinder head cover comprising a lubricating device according to the present disclosure. The lubricating device may be the lubricating device according to the first embodiment of the present disclosure. The same explanations, definitions and advantages provided herein with reference to the lubricating device according to the first embodiment also apply to the cylinder head cover. An advantage of providing such a cylinder head cover is that any cylinder can be easily retrofitted with the lubricating device by replacing a conventional cylinder head with a cylinder head according to the present disclosure.
[0080] According to a preferred development, the lubricating device can be attached to the top of the cylinder head cover, wherein the oil accumulation area can be configured to provide an oil flow in the form of oil droplets to the cylinder head component in the installed state of the cylinder head cover. Thus, a reliable, cost-effective and easy to maintain and operate lubricating device can be achieved.
[0081] According to a preferred development, the cylinder head cover can also include a plurality of lubrication devices, preferably four. Thus, a plurality of cylinder head components can be lubricated simultaneously.
[0082] A cylinder head component may be provided, the cylinder head component comprising a lubricating device according to the present disclosure. The lubricating device may be a lubricating device according to the second embodiment of the present disclosure. The same explanations, definitions and advantages provided herein with reference to the lubricating device according to the second embodiment also apply to the cylinder head cover. The advantage of providing such a cylinder head component is that any cylinder can be easily retrofitted with a lubricating device by replacing a conventional cylinder head component with a cylinder head component according to the present disclosure.
[0083] According to a preferred development, the cylinder head component may also include a piston valve, preferably wherein the piston valve includes a valve rocker arm and a piston valve spring. The lubricating device may be attached to the piston valve and / or the piston valve rocker arm. Thereby, a short oil flow path from the oil collecting surface to the valve component to be lubricated can be achieved.
[0084] A system of a cylinder head cover in the sense of the present disclosure and a cylinder head component in the sense of the present disclosure is provided. In other words, a system of a cylinder head cover comprising a lubrication device according to a first embodiment and a cylinder head component comprising a lubrication device according to a second embodiment is provided.
[0085] The system of the cylinder head cover and the cylinder head component can be a part of an oil-lubricated machine. In addition, the system can be used for an oil-lubricated machine using an oil pan.
[0086] Utilizing the disclosed system of cylinder head cover and cylinder head components, oil lubrication of the cylinder head components may be maximized.
[0087] An oil-lubricated machine, preferably a reciprocating internal combustion engine, in particular a stationary gas engine, is provided, the oil-lubricated machine comprising at least one cylinder head cover according to the present disclosure and / or a cylinder head component according to the present disclosure.
[0088] With the disclosed oil-lubricated machine, oil lubrication of cylinder head components may be maximized and long-term machine operation may be achieved.
[0089] Industrial Applicability
[0090] Referring to the drawings, a lubrication device for an oil-lubricated machine, a cylinder head cover, a cylinder head component, a system of such cylinder head cover and cylinder head component, and an oil-lubricated machine are suitable for use in any suitable internal combustion engine, for example, a gas fuel internal combustion engine (ICE).
[0091] Indeed, the products and combinations of these various components and parts may be manufactured, purchased or sold for retrofitting gas engines or gas engines already in the field in an aftermarket environment, or alternatively may be manufactured, purchased, sold or otherwise obtained in an OEM (original equipment manufacturer) environment.
[0092] As mentioned previously, the above developments may provide a simple, cost-effective and reliably operating lubrication system for gas engine pistons.
[0093] refer to Figure 2 , shows a development of a lubrication device for an oil-lubricated machine. The lubrication device includes: an oil collection surface, the oil collection surface is configured to collect oil dust; and an oil accumulation site, the oil accumulation site is configured to promote oil flow from the collected oil dust. Those skilled in the art will expect that various developments of the present disclosure will have improved simplicity for lubrication systems, require less maintenance and increase operational reliability.
[0094] The same advantages apply to the remaining figures, in particular to cylinder head covers, cylinder head components, their systems and oil-lubricated machines comprising such lubrication devices.
[0095] This specification is for illustrative purposes only and should not be interpreted as narrowing the scope of the present disclosure in any way. Therefore, those skilled in the art will understand that various modifications may be made to the currently disclosed development without departing from the complete and fair scope and spirit of the present disclosure. Other aspects, features and advantages will become apparent by referring to the drawings and the appended claims. As used herein, the article "a / an" is intended to include one or more items and can be used interchangeably with "one or more". In the case of only one item, the term "one" or similar language is used. In addition, as used herein, the terms "have", "have", "have", "include", "include", "contain", etc. are intended to be open terms. In addition, unless otherwise expressly provided, the phrase "based on" is intended to mean "based at least in part on".
[0096] All references to the present disclosure or examples thereof are intended to reference the specific examples discussed at that point and are not intended to imply any limitation on the scope of the present disclosure more generally. All language of distinction and disparagement of certain features is intended to be a lack of preference for those features, but does not completely exclude them from the scope of the present disclosure unless otherwise indicated.
[0097] Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein.
[0098] In addition, certain aspects or features of various developments may be changed or modified to produce further developments, and features and aspects of various developments may be added to or substituted for other features or aspects of other developments in order to provide yet further developments.
[0099] Accordingly, this disclosure includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Additionally, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or clearly contradicted by context.
Claims
1. A lubricating device (10) for an oil-lubricated machine (200), the lubricating device (10) comprising: an oil collecting surface (12) configured to collect oil dust (110); and An oil accumulation site (14) is configured to promote oil flow (18) from the collected oil dust (110).
2. The lubrication device (10) according to claim 1, wherein the oil collecting surface (12) is configured to collect oil dust (110) thereon in the form of an oil film (16).
3. A lubrication device (10) according to any one of the preceding claims, further comprising a straight edge (20) having a thickness (22), wherein the oil accumulation area (14) is constructed as a local interruption of the straight edge (20), the local interruption comprising at least one corner (24).
4. The lubrication device (10) according to any one of the preceding claims, wherein the oil accumulation location (14) comprises a protrusion, a recess, a hole and / or a groove, wherein the oil accumulation location (14) is configured to provide the oil flow (18) in the shape of oil droplets.
5. Lubricating device (10) according to any one of the preceding claims, wherein the oil accumulation site (14) is configured such that under nominal operating conditions the oil flow (18) comprises a predetermined dripping frequency.
6. A lubrication device (10) according to any of the preceding claims, which is configured to be attachable to a cylinder head cover (200), wherein the oil accumulation area (14) is configured to provide an oil flow (18) to a cylinder head component (300), in particular a piston valve (310), a piston valve rocker arm (320) and / or a piston valve spring (330).
7. The lubrication device (10) according to claim 6 further comprises a plurality of oil accumulation locations (14), preferably four oil accumulation locations (14), wherein each oil accumulation location (14) is configured to provide an oil flow (18) to a dedicated cylinder head component (300), in particular a piston valve (310), a piston valve rocker arm (320) and / or a piston valve spring (330).
8. A lubrication device (10) according to any one of claims 1 or 2, wherein the oil accumulation portion (14) is configured to be connected to a cylinder head component (300) so that the oil flow (18) flows from the oil collecting surface (12) via the oil accumulation portion (14) to the cylinder head component (300).
9. The lubrication device (10) according to claim 8, wherein the oil collecting surface (12) comprises a flat, curved and / or angled surface configured to be attached to the cylinder head component (300).
10. A cylinder head cover (200) comprising a lubrication device (10) according to any one of the preceding claims 1 to 6.
11. The cylinder head cover (200) according to claim 10, wherein the lubrication device (10) is attached to the cylinder head cover top (210), wherein the oil accumulation area (14) can be configured to provide an oil flow (18) in the form of oil droplets to the cylinder head component (300) in the installed state.
12. A cylinder head component (300) comprising a lubrication device (10) according to any one of the preceding claims 7 to 9.
13. The cylinder head component (300) according to claim 11, further comprising at least one piston valve (310), preferably, wherein the piston valve (310) comprises a piston valve rocker arm (320) and a piston valve spring (330).
14. A system of a cylinder head cover (200) according to any one of claims 10 to 11 and a cylinder head component (300) according to any one of claims 12 to 13.
15. An oil-lubricated machine (100), preferably a reciprocating internal combustion engine, in particular a stationary gas engine, comprising at least one cylinder head cover according to any one of claims 10 to 11 and / or a cylinder head component (300) according to any one of claims 13 to 14.