CN104632316A - Engine valve guide pipe and assembly - Google Patents
Engine valve guide pipe and assembly Download PDFInfo
- Publication number
- CN104632316A CN104632316A CN201310573250.XA CN201310573250A CN104632316A CN 104632316 A CN104632316 A CN 104632316A CN 201310573250 A CN201310573250 A CN 201310573250A CN 104632316 A CN104632316 A CN 104632316A
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- CN
- China
- Prior art keywords
- valve guide
- valve
- engine
- spiral groove
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
Abstract
The invention provides an engine valve guide pipe and assembly. The engine valve guide pipe comprises a pipe body, a valve seat ring is arranged at the position with a distance away from one end of the pipe body, a trapezoid spiral groove is formed in the inner surface of the pipe body in the length direction of the pipe body, a first oil channel leading to the outer surface of the pipe body is formed in the trapezoid spiral groove, and a mounting groove for mounting a sealing ring is formed in the position, close to one end of the valve seat ring and away from the end of the trapezoid spiral groove, of the inner surface of the pipe body. Engine oil flows into the spiral groove in the inner surface of the valve guide pipe through a corresponding oil groove hole in a cylinder cover and a high-pressure oil inlet in the valve guide pipe, the fit of a valve rod and the valve guide pipe is lubricated, the temperature of the valve rod and a valve is lowered, demands on materials are lowered, and cost is saved. Meanwhile, the sealing ring is pressed in the mounting groove, sealing of engine oil at the positions above the sealing ring in the valve guide pipe is achieved, the engine oil is prevented from flowing in the direction of the valve seat ring, and normal operation of the engine is guaranteed.
Description
Technical field
The present invention relates to cylinder technical field, particularly a kind of engine valve guide and assembly.
Background technique
Valve guide bushing is the important composition component in engine valve actuating mechanism, and its effect is not only to lead to valve guide bushing, but also by playing the effect of dispelling the heat to valve with the contact in valve stem footpath.In order to ensure leading role, valve guide bushing internal surface requirement on machining accuracy is high, and internal surface will have excellent wear resistance.In the prior art, tube material many employings high-strength wear-resistant alloy matching surface strengthen connotation or employing powder metallurgy manufacture blank, and the whole sequence of internal surface adopts the method for finish reaming to be processed into light face.Because the thermal conductivity of high-strength wearable alloy and powdered metallurgical material is poor, it is Spielpassung between valve stem footpath and valve guide bushing, in addition the valve oil seal that valve guide bushing upper end is installed has blocked the matching gap between machine oil inflow valve stem footpath and valve guide bushing, above-mentioned reason all causes valve guide bushing to be deteriorated to the heat dissipation potential in valve stem footpath, to such an extent as to the thermal environment of valve becomes severe, need to adopt resistance to heat resisting material that cost is high to resist hot environment.
Summary of the invention
The object of the present invention is to provide a kind of engine valve guide and assembly, strengthen the thermolysis to valve, reduce and wear resistance requirement to valve guide bushing internal surface is reduced to the rigors of valve material simultaneously, saved cost of material.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of engine valve guide, comprise body body, interval, one end one distance of described body body is provided with air valve seat ring, and along the length direction of described body body, described body body internal surface is provided with trapezoid spiral groove, wherein said trapezoid spiral groove is provided with the first oil duct that leads to described body body outer surface, and the described body body internal surface near described air valve seat ring one end and away from described trapezoid spiral groove end is provided with one for installing the mounting groove of seal ring.
Wherein, described body body is Straight.
Further, described mounting groove is O type.
Preferably, described first oil duct is arranged at the described trapezoid spiral groove end of the one end near described air valve seat ring.
The embodiment of the present invention also provides a kind of engine valve guide assembly, comprises engine cylinder cover, also comprises engine valve guide as above.
Wherein, described engine cylinder covers and is provided with one for the second oil duct to described first oil duct transferring high voltage machine oil.
Technique scheme of the present invention at least has following beneficial effect:
In the engine valve guide of the embodiment of the present invention, high-pressure oil flows into the trapezoid spiral groove of valve guide bushing internal surface by the high pressure oil oil inlet hole on oil groove aperture valve guide bushing corresponding on cylinder cap, have lubricated coordinating of valve stem footpath and valve guide bushing, reduce the temperature of valve stem footpath and valve, reduce the requirement to material, save cost; Simultaneously by seal ring is pressed into mounting groove, realize the sealing to the above position of seal ring in valve guide bushing machine oil, prevent machine oil from flowing into air valve seat ring direction, ensure that the normal operation of motor.
Accompanying drawing explanation
Fig. 1 represents the structural representation of the valve guide bushing of the embodiment of the present invention;
Fig. 2 represents the cross-sectional view of the valve guide bushing of the embodiment of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technological scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to the heat dissipation potential of valve guide bushing to valve stem footpath in prior art poor, the high exotic material of cost need be adopted to resist the problem of hot environment, a kind of engine valve guide and assembly are provided, high-pressure oil is made to flow into the trapezoid spiral groove of valve guide bushing internal surface by the high pressure oil oil inlet hole on oil groove aperture valve guide bushing corresponding on cylinder cap, have lubricated coordinating of valve stem footpath and valve guide bushing, reduce the temperature of valve stem footpath and valve, reduce the requirement to material, save cost; Simultaneously by seal ring is pressed into mounting groove, realize the sealing to the above position of seal ring in valve guide bushing machine oil, prevent machine oil from flowing into air valve seat ring direction, ensure that the normal operation of motor.
As shown in Figure 1 and Figure 2, the embodiment of the present invention provides a kind of engine valve guide, comprise body body 10, interval, one end one distance of body body 10 is provided with air valve seat ring, and along the length direction of described body body, body body 10 internal surface is provided with trapezoid spiral groove 101, wherein trapezoid spiral groove 101 is provided with the first oil duct 102 that leads to body body 10 outer surface, and body body 10 internal surface near described air valve seat ring one end and away from trapezoid spiral groove 101 end is provided with one for installing the mounting groove 103 of seal ring.
In the above embodiment of the present invention, valve guide bushing and air valve seat ring are the important component parts of engine cylinder cover, and air valve seat ring is arranged in the combustion chamber, and the interval, one end one of body body 10 is apart from setting, wherein above-mentioned distance is by the structures shape of engine cylinder cover, is not limited to a fixed value.And along the length direction of described body body, at the internal surface of body body 10, trapezoid spiral groove 101 is set, wherein preferably the starting point of spiral chute 10 is arranged at the end, one end of body body 10, and the terminal of spiral chute 10 is then arranged on the internal surface of body body 10.Further, the spacing of trapezoid spiral groove 10 can according to the model in valve stem footpath, and the factors such as material determine, preferably, in order to expand selection range, save cost of material, trapezoid spiral groove 101 should arrange comparatively Large space, to reduce the requirement to material, reduces the requirement to processing technology.
Wherein, the first oil duct 102 is for transferring high voltage machine oil, and swiftly flowing high-pressure oil plays pressure cooling action to valve, obviously strengthen the heat dissipation potential to valve, reduce the rigors to valve material, the material of lower temperature resistant grade can be selected, save the cost of valve material; Machine oil directly reduces the temperature of valve guide bushing internal surface simultaneously, also the requirement to valve guide bushing internal surface wear resistance is reduced, the selection range of valve guide bushing is greatly relaxed, the high abrasion resistance alloy of cost and powdered metallurgical material can be replaced to save cost of material with aluminum alloy or cast iron materials, improve the market competitiveness.
Further, the high-pressure oil flowing through matching gap is utilized to enhance the lubrication of friction pair, weaken the additional heat that the friction because of high-speed high frequency brings, reduce the roughness to valve stem footpath external diameter and valve catheter diameter and tolerance simultaneously, reduce the difficulty of production.Preferably, the high-pressure oil flowing through matching gap utilizes hydraulic pressure to finely tune matching gap, plays better leading role to valve stem footpath.
The engine valve guide of the above embodiment of the present invention also arranges a mounting groove 103, for installing seal ring, realizes the sealing to seal ring above position machine oil.Because in prior art, valve guide bushing upper end is provided with valve oil seal structure, this structure blocks machine oil flows into the matching gap between valve stem footpath and valve guide bushing, and valve guide bushing is deteriorated to the heat dissipation potential in valve stem footpath.The present invention cancels above-mentioned valve oil seal structure, but simultaneously in order to avoid machine oil flows into air valve seat ring direction, affect motor normally to run, the present invention is in close described air valve seat ring one end and away from body body 10 internal surface of trapezoid spiral groove 101 end being provided with one for installing the mounting groove 103 of seal ring.
In order to ensure its sealing effect, seal ring should coordinate completely with mounting groove 103 and valve stem footpath, Pressure Drop seal ring can be adopted to be pressed into mounting groove, also can adopt other modes, allly can ensure that the mode of its sealing effect is all applicable in the present invention.Simultaneously other modes also can be adopted to reach sealing effect, such as seal with wax, dry gas seals, packing seal, mechanical seal etc., allly can reach sealing effect, prevent machine oil from flowing into the method in air valve seat ring direction all applicable in the present invention.
Wherein, described body body 10 is Straight.
In the above embodiment of the present invention, valve guide bushing is to its leading role of valve stem footpath, then the shape of the catheter body 10 of valve guide bushing should be corresponding with the shape in valve stem footpath.In prior art, general valve stem footpath is cylindrical, then preferred embodiment of the present invention middle tube body body 10 is Straight, but is not limited only to this.
Further, when described body body 10 is Straight, mounting groove 103 is O type.
Simultaneously corresponding seal ring also should be O type, and seal ring must coordinate with valve stem footpath simultaneously completely, just can reach the effect of sealing.
In another embodiment of the present invention, the first oil duct 102 is arranged at described trapezoid spiral groove 101 end of the one end near described air valve seat ring.
In the above embodiment of the present invention, first oil duct 102 is arranged on trapezoid spiral groove 101, enable the position that machine oil flows into smoothly, preferably, in specific embodiments of the invention, the first oil duct 102 is arranged at trapezoid spiral groove 101 end near described air valve seat ring one end.
In order to better realize above-mentioned purpose, the embodiment of the present invention also provides a kind of engine valve guide assembly, comprises engine cylinder cover, also comprises engine valve guide as above.
Wherein, described engine cylinder covers and is provided with one for the second oil duct to described first oil duct 102 transferring high voltage machine oil.
In the above embodiment of the present invention, in the valve guide bushing of engine cylinder cover is installed, corresponding second oil duct in processing, so that machine oil is via the first oil duct 102 inflow engine valve guide bushing smoothly, plays cooling and lubrication to valve guide bushing and valve stem footpath.
In the engine valve guide of the embodiment of the present invention, high-pressure oil flows into the trapezoid spiral groove of valve guide bushing internal surface by the high pressure oil oil inlet hole on oil groove aperture valve guide bushing corresponding on cylinder cap, have lubricated coordinating of valve stem footpath and valve guide bushing, reduce the temperature of valve stem footpath and valve, reduce the requirement to material, save cost; Simultaneously by seal ring is pressed into mounting groove, realize the sealing to the above position of seal ring in valve guide bushing machine oil, prevent machine oil from flowing into air valve seat ring direction, ensure that the normal operation of motor.
It should be noted that, this engine valve guide assembly comprises above-mentioned engine valve guide, then the implementation method of all embodiments of above-mentioned engine valve guide is applicable to all can reach identical technique effect in the embodiment of this engine valve guide assembly.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. an engine valve guide, comprise body body, interval, one end one distance of described body body is provided with air valve seat ring, it is characterized in that, along the length direction of described body body, the internal surface of described body body is provided with trapezoid spiral groove, wherein said trapezoid spiral groove is provided with the first oil duct that leads to described body body outer surface, and the described body body internal surface near described air valve seat ring one end and away from described trapezoid spiral groove end is provided with one for installing the mounting groove of seal ring.
2. engine valve guide according to claim 1, is characterized in that, described body body is Straight.
3. engine valve guide according to claim 2, is characterized in that, described mounting groove is O type.
4. engine valve guide according to claim 1, is characterized in that, described first oil duct is arranged at the described trapezoid spiral groove end of the one end near described air valve seat ring.
5. an engine valve guide assembly, comprises engine cylinder cover, it is characterized in that, also comprises the engine valve guide as described in any one of Claims 1-4.
6. engine valve guide assembly according to claim 5, is characterized in that, described engine cylinder covers and is provided with one for the second oil duct to described first oil duct transferring high voltage machine oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310573250.XA CN104632316A (en) | 2013-11-13 | 2013-11-13 | Engine valve guide pipe and assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310573250.XA CN104632316A (en) | 2013-11-13 | 2013-11-13 | Engine valve guide pipe and assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632316A true CN104632316A (en) | 2015-05-20 |
Family
ID=53211482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310573250.XA Pending CN104632316A (en) | 2013-11-13 | 2013-11-13 | Engine valve guide pipe and assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632316A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703926A (en) * | 2017-01-11 | 2017-05-24 | 长沙理工大学 | Valve guide pipe |
| CN106988823A (en) * | 2017-04-07 | 2017-07-28 | 四川森洁燃气设备有限公司 | A kind of anti-lock valve sealing guidance set |
| CN109469530A (en) * | 2017-09-07 | 2019-03-15 | 福特全球技术公司 | Internal combustion engine valve guards |
| CN115163238A (en) * | 2022-07-26 | 2022-10-11 | 河南柴油机重工有限责任公司 | a valve guide |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB196653A (en) * | 1921-12-23 | 1923-04-23 | Arthur John Hawes Elverson | Improvements in valves and/or guides therefor |
| US3581728A (en) * | 1970-02-18 | 1971-06-01 | Caterpillar Tractor Co | Grooved valve stem guide |
| US5465691A (en) * | 1995-03-08 | 1995-11-14 | Capaldo; Richard G. | Valve guide |
| EP0745758A1 (en) * | 1995-05-02 | 1996-12-04 | Fuji Oozx Inc. | Poppet valve device |
| CN201944407U (en) * | 2010-12-02 | 2011-08-24 | 广州柴油机厂股份有限公司 | Gas valve lubricating oil sealing structure |
| CN202690156U (en) * | 2012-06-18 | 2013-01-23 | 上海交通大学 | Duct for repairing cylinder head air valve bulge |
| CN203081522U (en) * | 2012-12-07 | 2013-07-24 | 曹嫄 | Practical valve guide pipe |
-
2013
- 2013-11-13 CN CN201310573250.XA patent/CN104632316A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB196653A (en) * | 1921-12-23 | 1923-04-23 | Arthur John Hawes Elverson | Improvements in valves and/or guides therefor |
| US3581728A (en) * | 1970-02-18 | 1971-06-01 | Caterpillar Tractor Co | Grooved valve stem guide |
| US5465691A (en) * | 1995-03-08 | 1995-11-14 | Capaldo; Richard G. | Valve guide |
| EP0745758A1 (en) * | 1995-05-02 | 1996-12-04 | Fuji Oozx Inc. | Poppet valve device |
| CN201944407U (en) * | 2010-12-02 | 2011-08-24 | 广州柴油机厂股份有限公司 | Gas valve lubricating oil sealing structure |
| CN202690156U (en) * | 2012-06-18 | 2013-01-23 | 上海交通大学 | Duct for repairing cylinder head air valve bulge |
| CN203081522U (en) * | 2012-12-07 | 2013-07-24 | 曹嫄 | Practical valve guide pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703926A (en) * | 2017-01-11 | 2017-05-24 | 长沙理工大学 | Valve guide pipe |
| CN106703926B (en) * | 2017-01-11 | 2022-08-05 | 长沙理工大学 | a valve guide |
| CN106988823A (en) * | 2017-04-07 | 2017-07-28 | 四川森洁燃气设备有限公司 | A kind of anti-lock valve sealing guidance set |
| CN109469530A (en) * | 2017-09-07 | 2019-03-15 | 福特全球技术公司 | Internal combustion engine valve guards |
| CN115163238A (en) * | 2022-07-26 | 2022-10-11 | 河南柴油机重工有限责任公司 | a valve guide |
| CN115163238B (en) * | 2022-07-26 | 2024-02-20 | 河南柴油机重工有限责任公司 | Valve guide pipe |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |