CN114837767B - Lubricating mechanism for engine rocker arm and engine - Google Patents
Lubricating mechanism for engine rocker arm and engine Download PDFInfo
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- CN114837767B CN114837767B CN202110131413.3A CN202110131413A CN114837767B CN 114837767 B CN114837767 B CN 114837767B CN 202110131413 A CN202110131413 A CN 202110131413A CN 114837767 B CN114837767 B CN 114837767B
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- rocker arm
- oil
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- engine
- hole
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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
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre pivot rocking arms
Abstract
The invention provides a lubrication mechanism for an engine rocker arm and an engine, comprising: rocker arms, rocker shafts, bushings, and rocker arm holders for securing the rocker shafts. The rocker arm comprises a first surface, a second surface, a first section and a second section, wherein the first section and the second section are arranged between the first surface and the second surface, and the rocker arm comprises a rocker arm hole penetrating through the first surface and the second surface, a first oil duct and a second oil duct, the first oil duct and the second oil duct are respectively arranged on the first section and the second section. The rocker arm is fixed on the rocker arm shaft through the rocker arm hole and can rotate relative to the rocker arm shaft. The bushing is arranged between the rocker arm and the rocker arm shaft and comprises a first oil outlet and a second oil outlet, the first oil outlet is connected with the first oil duct, and the second oil outlet is connected with the second oil duct.
Description
Technical Field
The invention relates to the technical field of engines, and particularly provides a lubricating mechanism for an engine rocker arm and an engine.
Background
In the prior art, rocker arms are an important component of an engine valve train. The rocker arm is matched with the cam shaft, the valve push rod, the rocker arm shaft and the like to open and close the air inlet valve and the air outlet valve of the engine cylinder, so that fresh air is ensured to enter the cylinder in time, and waste gas is exhausted out of the cylinder in time. In order to ensure smooth operation of the rocker arm, and avoid the influence of abrasion on the working accuracy and reliability of the system, the lubrication of the valve rocker arm is particularly important. The lubricating structure of the existing rocker arm is characterized in that a rocker arm lubricating oil duct is arranged in the same section, and the problem that the rocker arm ball head and the rocker arm adjusting bolt ball head are seriously worn or high in manufacturing cost is caused by poor lubricating effect of the rocker arm due to insufficient oil pressure and complex oil duct structure.
Disclosure of Invention
The invention aims to provide a lubricating mechanism for an engine rocker arm and an engine, wherein rocker arm lubricating oil passages are arranged in different sections.
According to one aspect of the present invention, there is provided a lubrication mechanism for an engine rocker arm, characterized by comprising:
the rocker arm comprises a first surface, a second surface, a first section and a second section, wherein the first section and the second section are arranged between the first surface and the second surface, and the rocker arm comprises a rocker arm hole penetrating through the first surface and the second surface, a first oil duct respectively arranged on the first section, and a second oil duct respectively arranged on the second section;
a rocker arm shaft, the rocker arm being fixed to the rocker arm shaft through the rocker arm hole and being rotatable relative to the rocker arm shaft;
the bushing is arranged between the rocker arm and the rocker arm shaft and comprises a first oil outlet and a second oil outlet, the first oil outlet is connected with the first oil duct, and the second oil outlet is connected with the second oil duct;
and the rocker arm support is used for fixing the rocker arm shaft.
Preferably, the first section and the second section are parallel and are each arranged perpendicular to the center line of the rocker arm hole.
Further, the rocker arm shaft comprises a rocker arm shaft inner hole, a first oil inlet and an oil storage groove, a first gap is formed between the rocker arm shaft and the bushing, engine oil enters the rocker arm shaft inner hole through the first oil inlet, enters the oil storage groove through the rocker arm shaft inner hole, and then enters the first gap through the oil storage groove.
Further, the rocker arm further comprises a rocker arm ball head, a third surface intersecting the first surface and the second surface, an oil guiding groove arranged on the third surface and a third oil outlet arranged at one end of the oil guiding groove, wherein the third oil outlet is connected with the first oil duct, engine oil in the first gap enters the first oil duct through the first oil outlet, enters the third oil outlet through the first oil duct, and enters the oil guiding groove through the third oil outlet to finally lubricate the rocker arm ball head.
Further, the rocker arm further comprises a mounting hole arranged at one end of the rocker arm, the lubrication mechanism further comprises an adjusting screw which is connected with the mounting hole in a matched mode, the adjusting screw comprises a main body portion and a ball head portion, an extension line of a central line of the second oil duct is intersected with the ball head portion, engine oil in a first gap enters the second oil duct through the second oil outlet, and the engine oil splashes out through the second oil duct to lubricate the ball head portion.
Preferably, the first section passes through the center line of the third oil outlet, the rocker arm further comprises a mounting hole arranged at one end of the rocker arm, and the second section passes through the center line of the mounting hole.
Preferably, the first surface and the second surface are arranged in parallel, and the first surface and the second surface are arranged non-perpendicularly to the center line of the rocker arm hole.
Further, the bushing and the rocker arm hole are in interference fit so as to realize synchronous movement of the bushing and the rocker arm.
The invention also provides an engine comprising a lubrication mechanism for an engine rocker arm as described above.
The lubricating mechanism for the engine rocker arm and the engine provided by the invention have the advantages that the rocker arm lubricating oil ducts are respectively arranged in different sections, and at least one of the following beneficial effects can be brought:
according to the scheme, the rocker arm lubricating oil duct is arranged in different sections, so that the oil duct structure is effectively simplified, the oil pressure is improved, the rocker arm lubricating effect is improved, the wear of the rocker arm ball head and the rocker arm adjusting bolt ball head is reduced, meanwhile, the rocker arm lubricating oil duct is arranged in different sections, the rocker arm lubricating oil duct can be conveniently machined, and the manufacturing cost is reduced.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic view of a cylinder head mechanism assembly;
FIG. 2 is a schematic view of the nozzle assembly of the present invention;
FIG. 3 is a schematic diagram of an injector assembly according to the present invention;
fig. 4 is a first perspective view of the cylinder head;
FIG. 5 is a second perspective view of the cylinder head;
FIG. 6 is a schematic view of the structure of the nozzle according to the present invention;
FIG. 7 is a schematic view of the structure of the mounting plate of the present invention;
FIG. 8 is a schematic cross-sectional view of a copper sleeve assembly according to the present invention;
FIG. 9 is a bottom view of the cylinder head;
FIG. 10 is a cross-sectional view of the cylinder head of "A-A" in FIG. 9;
FIG. 11 is an assembled schematic view of a rocker arm;
FIG. 12 is a schematic view of a rocker arm construction;
FIG. 13 is a schematic perspective view of a rocker arm shaft and bushing mounted on a rocker arm;
FIG. 14 is a schematic perspective view of a bushing;
FIG. 15 is a first perspective view of a rocker shaft;
FIG. 16 is a second perspective view of a rocker shaft;
FIG. 17 is a schematic top view of a rocker arm;
FIG. 18 is a schematic bottom view of a rocker arm;
fig. 19 is a schematic view of a first oil passage arrangement structure;
fig. 20 is a schematic view of a second oil passage arrangement structure.
10-a cylinder cover; 11-a first upper surface; 12-cylinder cover mounting holes; 13-a second upper surface; 14-fourth mounting holes; 15-a first mounting hole; 16-fifth mounting holes; 17-rocker arms; 18-a rocker arm support; 19-water outlet holes; 20-spraying pipe; 21-an air inlet channel; 22-exhaust passage; 24-a pushrod mounting hole; 25-a sand discharge port; 26-assembly mounting holes; 27-a cylinder cover oil hole; 28-mounting plate; 29-a receiving chamber; 30-an oil injector; 31-O-shaped ring; 33-a first connector; 34-a second connector; 35-copper sleeve; 37-cylinder head cover; 38-a water inlet hole; 344-adjusting the bolt; 40-rocker shaft; 41-a bushing; 42-valve; 43-push rod; 44-adjusting the screw; 171-rocker arm aperture; 172-rocker ball head; 13 A-A first section; 14 A-A second section; 177-third oil outlet; 176-oil guide groove; 401-rocker shaft inner bore; 402-a first oil inlet; 403-oil storage tank; 411-first oil outlet; 412-a second oil outlet; 414-outer surface; 413-an inner surface; 441-a main body portion; 442-bulb part; 131-a first oil passage; 141-second oil duct
Description of the embodiments
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
For the sake of simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Embodiments of the invention are further elaborated below in connection with the drawings of the specification.
Referring to fig. 1 to 6 and 10, a cylinder head assembly 100 for an engine includes a cylinder head 10, a nozzle 20, and a fuel injector 30, the cylinder head 10 including an upper surface (not labeled) at an upper end and a lower surface (not labeled) at a lower end, the lower surface being provided with a water inlet 38, the cylinder head 10 including a nose bridge region interposed between the upper and lower surfaces. The cylinder head 10 includes an intake port 21, an exhaust port 22, and a first mounting hole 15 for mounting the injector 30, the intake port 21 includes an intake port 211, the exhaust port 22 includes an exhaust port 221, and the intake port 21, the exhaust port 22, and the first mounting hole 15 form the nose bridge region.
The spray pipe 20 comprises a water inlet section 201, a water outlet section 203 and a connecting section 202 arranged between the water inlet section 201 and the water outlet section 203, wherein the water inlet section 201 and the connecting section 202 are arranged on the same plane, the water outlet section 203 forms a certain angle with the planes of the water inlet section 201 and the connecting section 202, the water inlet section 201 comprises a first step section 2011, the water inlet section 201 comprises a water inlet 2012, the water inlet 2012 is arranged in the water inlet hole 38 through the first step section 2011, the water outlet section 203 comprises a water outlet 2031, and the water outlet 2031 is opposite to the nose bridge region.
The water outlet section 203 and the connecting section 202 are both bending pipes, the first step section 2011 is a cylindrical section coaxially arranged with the water inlet section 201, and the outer diameter of the first step section 2011 is larger than the diameter of the water inlet section 201. The inlet 38 includes a second stage 381 cooperatively positioned with the first stage 2011. The first step 2011 includes a locating score 2013, the locating score 2013 aligned parallel to the long side of the head 10 to locate the nozzle 20 installation position.
The cylinder cover 10 includes a left side surface (not labeled) and a right side surface (not labeled) disposed at two ends of the cylinder cover, the left side surface is provided with a water outlet 19, cooling water enters the spray pipe 20 through the water inlet 38, enters the cylinder cover 10 through the water outlet 2031, and finally flows out from the water outlet 19.
Referring to fig. 1, 3 and 4, the upper surface includes a first upper surface 11 and a second upper surface 13 recessed downward from the first upper surface 11, and the cylinder head 10 further includes a head mounting hole 12 protruding along the second upper surface 13 to fix the cylinder head 10 to the engine body, the head mounting hole 12 penetrating the upper and lower surfaces. The head mounting hole 12 includes a first surface 121 located at a top of the head mounting hole 12, and the first surface 121 is located on the same plane as the first upper surface 11. The cylinder head 10 also includes assembly mounting holes 26 for mounting other cylinder head assemblies.
Referring to fig. 3, 4, 7 and 8, the cylinder head 10 further includes a copper sleeve 35 disposed inside the first mounting hole 15, a mounting plate 28 for fixing the fuel injector 30, a connector, and an O-ring 31. The fuel injector 30 includes a first body (not shown) disposed outside the cylinder head 10 and a second body (not shown) disposed inside the cylinder head 10, and the second body is sleeved inside the copper sleeve 35. The mounting plate 28 includes a second mounting hole 281 and a third mounting hole 282 at two ends thereof, and a first limiting portion 283 disposed between the second mounting hole 281 and the third mounting hole 282, and the first body portion is disposed in the first limiting portion 283 and a central line between the second mounting hole 281 and the third mounting hole 282 is not in the same plane with a central line of the first mounting hole 15. The connecting members include a first connecting member 33 and a second connecting member 34, the cylinder head 10 further includes a fourth mounting hole 14 and a fifth mounting hole 16 at both ends of the first mounting hole 15, the first connecting member 33 passes through the second mounting hole 281 and the fourth mounting hole 14, and the second connecting member 34 passes through the third mounting hole 282 and the fifth mounting hole 16. The O-ring 31 is disposed between the copper bush 35 and the inner wall of the first mounting hole 15 to achieve radial sealing between the copper bush 35 and the cylinder head 10.
The first mounting hole 15 includes a big end mounting hole 151 and a small end mounting hole 152 which are coaxially arranged, the copper sleeve 35 includes a third main body portion 351 sleeved inside the big end mounting hole 151 and a fourth main body portion 352 sleeved inside the small end mounting hole 152, and the fourth main body portion 352 is in interference fit with the small end mounting hole 152.
The first connecting member 33 includes a first bolt 332 and a first nut 331, and the second connecting member 34 includes a second bolt 342 and a second nut 341. In the present embodiment, the connectors are bolts and nuts, and in other embodiments, the connectors may be other types of connectors such as pins or screws.
The center lines of the first mounting hole 15, the fourth mounting hole 14 and the fifth mounting hole 16 are parallel to each other and are inclined to the surface of the cylinder head 10. In other embodiments, the center line of the first mounting hole 15, the center line of the fourth mounting hole 14, and the center line of the fifth mounting hole 16 may be perpendicular to the surface of the cylinder head 10.
The first limiting portion 283 is a rectangular clamping groove, and the width of the rectangular clamping groove is the same as the inner diameter of the copper sleeve 35. In the present embodiment, the first limiting portion 283 is a rectangular slot, and in other embodiments, the first limiting portion 283 may be another form such as a circular arc slot.
The cylinder cover 10 further comprises a cylinder cover 37 which is connected with the cylinder cover 10 in a matching way and is arranged above the cylinder cover, and the distance between the center line of the first mounting hole 15 and the surface of the cylinder cover 37 is closer than the distance between the center lines of the second mounting hole 281 and the third mounting hole 282 and the surface of the cylinder cover 37.
The small-end mounting hole 152 is provided through the cylinder head 10, and the fourth main body portion 352 is not provided beyond the inner surface of the cylinder head 10. In other embodiments, the small head mounting hole 152 may not be provided through the cylinder head 10.
The cylinder head 10 further includes a receiving chamber 29 communicating with the first mounting hole 15 to receive a coolant, and the third body 351 is partially disposed inside the receiving chamber 29. The surfaces of the head 10 also include sand drain openings 25 required for the casting process.
The cylinder head assembly 100 in the present embodiment is a part of an engine. Engines typically include, in addition to a cylinder head assembly 100, an oil pan, cylinder block, turbocharger, lubrication system, cooling system, and the like.
Referring to fig. 1 and 11 to 20, the cylinder head assembly 100 further includes a rocker arm lubrication mechanism including a rocker arm 17, a rocker arm shaft 40 to fix the rocker arm 17, a bush 41 interposed between the rocker arm 17 and the rocker arm shaft 40, and a rocker arm mount 18 to fix the rocker arm shaft 40. The rocker arm 17 includes a first surface 13A, a second surface 14A, and a first section 13A and a second section 14A disposed between the first surface 13A and the second surface 14A, the rocker arm 17 includes a rocker arm hole 171 penetrating the first surface 13A and the second surface 14A, and a first oil passage 131 disposed on the first section 13A and a second oil passage 141 disposed on the second section 14A, respectively, the first section 13A and the second section 14A are parallel and are each disposed perpendicularly to a center line of the rocker arm hole 171. The rocker arm 17 is fixed to the rocker arm shaft 40 through the rocker arm hole 171 and is rotatable with respect to the rocker arm shaft 40. The bushing 41 is disposed between the rocker arm 17 and the rocker arm shaft 40, the bushing 41 includes a first oil outlet 411 and a second oil outlet 412, the first oil outlet 411 is connected with the first oil passage 131, and the second oil outlet 412 is connected with the second oil passage 141. In the present embodiment, the first section 13a and the second section 14a are spaced apart from each other and are disposed perpendicularly to the center line of the rocker arm hole 171, and in other embodiments, the first section 13a and the second section 14a may be the same section and are not disposed perpendicularly to the center line of the rocker arm hole 171, or the first section 13a and the second section 14a may be the same section and are disposed perpendicularly to the center line of the rocker arm hole 171.
The cylinder head assembly 100 comprises a cylinder head oil hole 27, the rocker arm shaft 40 comprises a rocker arm shaft inner hole 401, a first oil inlet 402, a locking screw hole 404 and an oil storage groove 403, the rocker arm shaft 40 is fixed on the rocker arm support 18 through the locking screw hole 404, and a first gap is formed between the rocker arm shaft 40 and the bushing 41. The engine oil enters the rocker arm support 18 through the cylinder cover oil hole 27, then enters the rocker arm shaft inner hole 401 through the first oil inlet 402, enters the oil storage tank 403 through the rocker arm shaft inner hole 401, and then enters the first gap through the oil storage tank 403.
The bushing 41 comprises an inner surface 413, an outer surface 414, and a first oil outlet 411 and a second oil outlet 412 penetrating through the inner surface 413 and the outer surface 414, wherein the inner surface 413 and the outer surface 414 are coaxially arranged and are cylindrical surfaces. The bushing 41 is in an interference fit with the rocker arm hole 171 to achieve synchronous movement of the bushing 41 and rocker arm 17.
The rocker arm 17 further includes a rocker arm ball 172, a third surface 17A intersecting the first surface 13A and the second surface 14A, an oil guiding groove 176 provided in the third surface 17A, and a third oil outlet 177 provided at one end of the oil guiding groove 176, the third oil outlet 177 being connected to the first oil passage 131. When the rocker arm 17 and the bushing 41 rotate at a high speed, engine oil in the first gap enters the first gap through the first oil outlet 411, enters the third oil outlet 177 from the first gap through the first oil duct 131, enters the oil guide groove 176 through the third oil outlet 177, and finally lubricates the rocker arm ball head 172.
The rocker arm 17 further comprises a mounting hole 175 arranged at one end of the rocker arm 17, the rocker arm 17 further comprises an adjusting screw 44 in matched connection with the mounting hole 175, the adjusting screw 44 comprises a main body portion 441 and a ball head portion 442, and the central line extension line of the second oil duct 141 is intersected with the ball head portion 442. When the rocker arm 17 and the bushing 41 rotate at a high speed, the engine oil in the first gap enters the second oil passage 141 through the second oil outlet 412 and splashes out through the second oil passage 141 to lubricate the ball portion 442.
Referring to fig. 17 and 18, the first section 13a passes through the center line of the third oil outlet 177, the rocker arm 17 further includes a mounting hole 175 disposed at one end of the rocker arm 17, and the second section 14a passes through the center line of the mounting hole 175. In other embodiments, the first section 13A and the second section 14A may be disposed at any position between the first surface 13A and the second surface 14A.
The first surface 13A and the second surface 14A are disposed in parallel, and the first surface 13A and the second surface 14A are disposed non-perpendicularly to the center line of the rocker arm hole 171. In other embodiments, the first surface 13A and the second surface 14A may also form an angle, and the first surface 13A and the second surface 14A may be disposed perpendicular to the center line of the rocker arm hole 171.
Referring to fig. 5, 9 and 11, the cylinder head assembly includes a valve 42 disposed at a lower portion of the rocker ball head 172 and in contact with the rocker ball head 172, and a pushrod 43 disposed at a lower portion of the ball head 442 and in contact with the ball head 442, and the cylinder head 10 further includes a pushrod mounting hole 24 for mounting the pushrod 43. When the engine rotates at a high speed, the push rod 43 drives the rocker arm 17 to rotate, the lubrication mechanism of the rocker arm 17 starts to work, and the rocker arm 17 drives the valve 42 to open and close, so that the air inlet and exhaust processes of the engine are completed.
It should be noted that various modifications and variations can be made to the above-described exemplary embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (6)
1. A lubrication mechanism for an engine rocker arm, comprising:
the rocker arm comprises a first surface, a second surface, a first section and a second section, wherein the first section and the second section are arranged between the first surface and the second surface, and the rocker arm comprises a rocker arm hole penetrating through the first surface and the second surface, a first oil duct respectively arranged on the first section, and a second oil duct respectively arranged on the second section;
a rocker arm shaft, the rocker arm being fixed to the rocker arm shaft through the rocker arm hole and being rotatable relative to the rocker arm shaft;
the bush is arranged between the rocker arm and the rocker arm shaft, the bush comprises a first oil outlet and a second oil outlet, the first oil outlet is communicated with the first oil duct, and the second oil outlet is communicated with the second oil duct;
the rocker arm support is used for fixing the rocker arm shaft;
the first section and the second section are parallel and are perpendicular to the central line of the rocker arm hole;
the rocker arm further comprises a rocker arm ball head, a third surface intersecting with the first surface and the second surface, an oil guiding groove arranged on the third surface and a third oil outlet arranged at one end of the oil guiding groove, wherein the third oil outlet is connected with the first oil duct, engine oil in a first gap enters the first oil duct through the first oil outlet, enters the third oil outlet through the first oil duct and then enters the oil guiding groove through the third oil outlet, and finally the rocker arm ball head is lubricated;
the rocker arm is characterized by further comprising a mounting hole arranged at one end of the rocker arm, the lubricating mechanism further comprises an adjusting screw which is connected with the mounting hole in a matched mode, the adjusting screw comprises a main body part and a ball head part, an extension line of a central line of the second oil duct is intersected with the ball head part, engine oil in a first gap enters the second oil duct through the second oil outlet, and then splashes out through the second oil duct to lubricate the ball head part.
2. The lubrication mechanism for an engine rocker arm of claim 1 wherein:
the rocker arm shaft comprises a rocker arm shaft inner hole, a first oil inlet and an oil storage groove, a first gap is formed between the rocker arm shaft and the bushing, engine oil enters the rocker arm shaft inner hole through the first oil inlet, enters the oil storage groove through the rocker arm shaft inner hole, and then enters the first gap through the oil storage groove.
3. The lubrication mechanism for an engine rocker arm of claim 2 wherein:
the first section passes through the center line of the third oil outlet, the rocker arm further comprises a mounting hole arranged at one end of the rocker arm, and the second section passes through the center line of the mounting hole.
4. The lubrication mechanism for an engine rocker arm of claim 1 wherein:
the first surface and the second surface are arranged in parallel, and the first surface and the second surface are arranged in a non-perpendicular mode with the center line of the rocker arm hole.
5. The lubrication mechanism for an engine rocker arm of claim 1 wherein:
the bushing and the rocker arm hole are in interference fit so as to realize synchronous movement of the bushing and the rocker arm.
6. An engine comprising a lubrication mechanism for an engine rocker arm as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110131413.3A CN114837767B (en) | 2021-01-30 | 2021-01-30 | Lubricating mechanism for engine rocker arm and engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110131413.3A CN114837767B (en) | 2021-01-30 | 2021-01-30 | Lubricating mechanism for engine rocker arm and engine |
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| CN114837767A CN114837767A (en) | 2022-08-02 |
| CN114837767B true CN114837767B (en) | 2023-06-27 |
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| US11668210B2 (en) * | 2020-07-14 | 2023-06-06 | Powerhouse Engine Solutions Switzerland IP Holding GmbH | Systems and methods for rocker arm lubrication |
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| CN114837767A (en) | 2022-08-02 |
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