CN1116503C - Intake valve device for preventing adhesion of deposits - Google Patents
Intake valve device for preventing adhesion of deposits Download PDFInfo
- Publication number
- CN1116503C CN1116503C CN 96104644 CN96104644A CN1116503C CN 1116503 C CN1116503 C CN 1116503C CN 96104644 CN96104644 CN 96104644 CN 96104644 A CN96104644 A CN 96104644A CN 1116503 C CN1116503 C CN 1116503C
- Authority
- CN
- China
- Prior art keywords
- valve
- intake valve
- conduit
- intake
- circular groove
- 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.)
- Expired - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to an intake valve of an internal combustion engine, which is composed of a valve stem and a valve head and can move up and down. Annular slim grooves are formed on any contact surface between the valve rod and a valve conduit, and are communicated with an air inlet of a lower end. Lubrication oil entering a gap between the valve stem and the valve conduit passes through the grooves to move downwards, flows out of the valve conduit and adheres on the valve head at the air inlet. The lubricating oil on the valve head is washed away by fuel jetted by a fuel injector.
Description
Technical field
The present invention relates to an intake valve device that prevents that incrustation from adhering to.
Background technique
In the poppet valve of automobile and engine of boat and ship, particularly in the intake valve that has relatively lower thermal force, if the high boiling point organic compound between valve conduit and valve rod the blunt lubricant oil that goes out in gap is attached on valve head and the adjacent domain, they will be carbonized when intake valve is in 200 ° to 300 °, and progressively build up and develop, thereby form a large amount of incrustation.Contain corrosion composition in the incrustation, it causes corrosion on valve head and adjacent domain.
In order to overcome lip-deep these shortcomings of valve head and adjacent domain, the open 6-235308 of Japan's special permission has advised a kind of intake valve, it is characterized in that on valve head and adjacent domain, forming a coating with oxidation catalysis function, owing to, prevent that high boiling point organic compound is attached on valve head and the adjacent domain through the oxidation catalysis reaction.But, in the intake valve of this patent, motor is under low speed and low load during long-time running, surface with catalyzer before intake valve reaches catalyst reaction temperatures will cover the part of the high boiling point organic compound in the lubricated oil owing to the whereabouts of lubricant oil, and catalyzer and air or oxygen are isolated.So just can not fully realize the oxidation catalysis reaction.
Summary of the invention
One object of the present invention just provides a control valve unit, and wherein lubricant oil falls towards fuel injection apparatus, is attached to valve head and adjacent domain and prevents that the lubricated oil of catalyst surface from covering so that prevent incrustation.
For this reason, the invention provides an intake valve device that prevents that incrustation adheres in the internal-combustion engine, this device comprises: a feeding poppet valve of being made up of valve head and valve rod; The valve conduit that valve can slide and insert; With fuel injection system to the valve head burner oil, have a circular groove and an elongated slot that communicates with circular groove between valve rod and the valve conduit on any one surface of contact, the lower end of elongated slot is towards being positioned near the suction port perforate of fuel injection system.
According to the present invention, lubricant oil and is rinsed out by the fuel that fuel injection system sprayed because the whereabouts of oil is introduced on the valve by circular groove and elongated slot or spiral chute, thereby has avoided lubricant oil to be attached on the intake valve.
Description of drawings
From to being illustrated in the description of embodiment the accompanying drawing, it is more very clear that characteristics of the present invention and advantage will become, wherein:
Fig. 1 is the sectional view of first invention;
Fig. 2 is the horizontal amplification view of being got along Fig. 1 II-II line;
Fig. 3 is the horizontal amplification view of being got along Fig. 1 III-III line;
Fig. 4 is the horizontal amplification view of the valve conduit of second invention;
Fig. 5 is the vertical amplification view of one embodiment of the invention; With
Fig. 6 is the enlarged view of coating.
Embodiment
First invention has been shown among Fig. 1, and wherein label 1 refers to intake valve, it be molded as by martensite refractory steel and comprise a valve rod 1a and a valve head 1b who is positioned at its lower end.The valve rod 1a of intake valve 1 is inserted in the cylindrical shape valve conduit 2 that stamps out on cylinder head 3 slidably, and by the upper surface that is positioned at the cylindrical valve push rod 5 of valve rod 1a upper end with eccentric wheel 6 promotions intake valve is moved up and down.What label 4 was represented is valve spring.
In the upper end of valve conduit 2, there is a lip shape seal ring 7 to be connected on the peripheral surface of valve rod 1a, thereby prevents that remaining lubricant oil from flowing among the valve rod 1a and the gap between the valve conduit 2 of intake valve 1.
A sparger is provided near the cylinder head the intake valve 13, has been used for the gasoline of jet atomization, and spout 9a points to the surface that is positioned at the suction port 10 valve head 1b of place.On the surface that contacts with intake valve 1 on the valve conduit 2, be processed with a circular groove 2a and an elongated slot 2b, the upper end of elongated slot 2b communicates with circular groove 2a and extends to the lower end of valve conduit 2.The lower end of elongated slot 2b is towards suction port 10 perforates, about it also can be referring to Fig. 3 and 4.
The function of the foregoing description will be described below.The lubricant oil 8 that enters gap between the valve rod 1a of intake valve 1 and the valve conduit 2 temporarily is stored among the circular groove 2a.Lubricant oil 8 among the circular groove 2a flows into the lower end of the valve rod 1a that is positioned at suction port 10 place's intake valves 1 by elongated slot 2b, and arrives near the valve head 1b the sparger 9.Gasoline 11 injected devices 9 blow lower end and the valve head 1b place that is sprayed onto intake valve 1 valve rod 1a, are washed and are inhaled in the cylinder 12 by gasoline 11 attached to herein lubricant oil 8 like this.Therefore, lubricant oil 9 is difficult on the surface attached to the intake valve 1 at suction port 10 places.
In above embodiment, circular groove 2a and elongated slot 2b both processing are on valve conduit 2, but they can be processed on intake valve 1.
It is low that circular groove 2a preferably processes as far as possible.Be maintained among the circular groove 2a with regard to the lubricant oil 8 of invading gap between valve conduit and the intake valve 1, lubricant oil can not arrive the surface of contact place that is lower than circular groove 2a.This has prevented the decline of greasy property.
Second inventive embodiment will be shown among Fig. 4.The present invention and difference between the above embodiment only are that the groove on the interior ring surface of valve conduit 13 is different, and illustrating of other will be left in the basket.In valve conduit 13 whole, be processed with a spiral chute 14 on the ring surface, and the opening 14a of spiral chute 14 lower ends is communicated with near the sparger 9 suction port 10, is similar to the elongated slot 2b among the previous embodiment.
The lubricant oil 8 of invading gap between intake valve 1 and the valve conduit 13 flows into spiral chutes 14 and arrives near the valve head 1b place of sparger 9 intake valves 1, is similar to previous embodiment.Gasoline 11 attached to 8 injected device 9 ejections of the lubricant oil on the valve head 1b rinses out.This embodiment has the advantage similar to previous embodiment, and spiral chute 14 compares the lubricating oil hold facility that provides fabulous with elongated slot 2b, and has improved the greasy property of intake valve 1 with the surface of contact of valve conduit 13.
Spiral chute 14 can be worked into the lower end of valve conduit 13 from the appropriate position of ring surface in the valve conduit 13.Spiral chute 14 can be processed on intake valve 1.
Fig. 5 will illustrate an alternative embodiment of the invention, wherein scribble the coating that has the oxidation catalysis function on intake valve 1 part at suction port 10 places, for example, and at valve rod 1a lower end and the valve head 1b place that high boiling point organic compound might adhere to.Shown in amplifying among Fig. 6, the surface of intake valve 1 is coated with the loose carrier 17 of the pottery that has countless micropores 16, resembles the such active substance of Pt, Pd and Rh and is dissolved in wherein and carry thereon, constitutes coating 15 thus.Loose carrier 17 is preferably made by oxide ceramic, as by Al
2O
3, ZrO
2Make with steinheilite, and can use surface processing device to apply resemble the thermal spraying.If the surface of intake valve 1 is done coarsely, the peel resistance of loose carrier 17 will be increased.If loose carrier 17 is made up of double-layer structure, comprise Al
2O
3Processing layer and γ-Al of being applied thereto
2O
3Washcoated layer (wash-coat layer), it is bigger that the surface area of micropore 16 will become, and increases the ability of carrying activator thus.
Contained high boiling point organic compound in the lubricant oil that gasoline 11 does not rinse out, and move up and down contained high boiling point organic compound in the lubricant oil that is dispersed near the valve head 1b reverse side sparger 9 owing to intake valve 1, on the activator 18 attached to coating 15.When intake valve 1 reached 200-350 ℃ predetermined temperature, oxidation catalysis was reflected at heat affected zone and takes place, thereby made high boiling point organic compound leave activator 18 and disperse it, and high boiling point organic compound neither can also can not be deposited on the surface of valve head 1b in carbonization like this.
Except petrol engine, the present invention also can be used for internal-combustion engine.
Preamble has only related to preferred embodiment of the present invention.The one skilled in the art can make various changes and modifications and also not depart from claim 1 scope.
Claims (5)
1. intake valve device that prevents that incrustation adheres in the internal-combustion engine, this device comprises:
A feeding poppet valve of forming by valve rod and valve head;
The valve conduit that valve rod slidably inserts;
To the fuel injection system of valve head burner oil, a circular groove and an elongated slot that communicates with circular groove are arranged, near the suction port perforate of the lower end of elongated slot fuel injection apparatus on any one surface of contact between valve rod and the valve conduit.
2. intake valve device as claimed in claim 1 is characterized in that circular groove and elongated slot are formed on the surface of contact of valve conduit and valve rod.
3. intake valve device as claimed in claim 1 is characterized in that circular groove is formed at the bottom of valve conduit surface of contact.
4. intake valve device as claimed in claim 1 is characterized in that, incrustation comprises invades the lubricant oil in the gap between valve rod and the valve conduit.
5. intake valve device as claimed in claim 1 is characterized in that partly coating the coating with oxidation catalysis function at the intake valve at suction port place at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96104644 CN1116503C (en) | 1996-04-24 | 1996-04-24 | Intake valve device for preventing adhesion of deposits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96104644 CN1116503C (en) | 1996-04-24 | 1996-04-24 | Intake valve device for preventing adhesion of deposits |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1163341A CN1163341A (en) | 1997-10-29 |
| CN1116503C true CN1116503C (en) | 2003-07-30 |
Family
ID=5118412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96104644 Expired - Fee Related CN1116503C (en) | 1996-04-24 | 1996-04-24 | Intake valve device for preventing adhesion of deposits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1116503C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6837201B1 (en) * | 2003-10-22 | 2005-01-04 | General Motors Corporation | Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines |
| US7104238B2 (en) * | 2003-10-22 | 2006-09-12 | General Motors Corporation | Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines |
| JP5073628B2 (en) * | 2008-09-25 | 2012-11-14 | 三洋機工株式会社 | Retainer / cotter assembly apparatus and method |
| CN103244229B (en) * | 2013-05-20 | 2015-10-21 | 中国南方航空工业(集团)有限公司 | Motor |
| CN106150743A (en) * | 2015-05-20 | 2016-11-23 | 宁夏巨能机器人系统有限公司 | A kind of engine cylinder cover processing method |
| GB2568975A (en) | 2017-10-30 | 2019-06-05 | Eaton Srl | Poppet valve |
| CN110410170A (en) * | 2019-09-23 | 2019-11-05 | 潍柴动力股份有限公司 | Valve guide bushing and engine with it |
| CN113932017B (en) * | 2021-10-26 | 2023-12-08 | 沛县鑫鸿驰交通运输设备有限公司 | Sand blasting abrasive valve for sand blasting machine |
-
1996
- 1996-04-24 CN CN 96104644 patent/CN1116503C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1163341A (en) | 1997-10-29 |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |