CN202483661U - Air valve of engine - Google Patents
Air valve of engine Download PDFInfo
- Publication number
- CN202483661U CN202483661U CN2011204799547U CN201120479954U CN202483661U CN 202483661 U CN202483661 U CN 202483661U CN 2011204799547 U CN2011204799547 U CN 2011204799547U CN 201120479954 U CN201120479954 U CN 201120479954U CN 202483661 U CN202483661 U CN 202483661U
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- cavity
- valve
- lithium
- air valve
- head
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Abstract
The utility model provides an air valve of an engine, belonging the technical field of machinery. The air valve solves the problem that a hollow sodium filling air valve in the prior art is limited in applicable range in a high temperature work condition. The air valve of the engine includes a body provided with a cavity, and lithium is filled in the cavity. Because the melting point of lithium is 180.54 DEG C and the boiling point of lithium is 1347 DEG C, and the temperature range from the melting point to the boiling point exceeds 1000 DEG C, the air valve provided is larger in transmission range in an applicable temperature.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of valve of motor.
Background technique
Valve is a vitals of motor.The effect of valve is the parts of being responsible in motor input air specially and discharging waste gas after burning, also is one of requisite parts of motor.Because the valve working environment is abominable especially; The high wearing and tearing of high temperature (2200 about degree) high pressure (6-10MPA) (motor 3000 rev/mins time valve open and close 1500 times/minute); When common valve is spent above 900 in ambient temperature; Usability just obviously descends, and therefore has a strong impact on the combustion efficiency of motor.
In order to improve the efficient of motor, people have made a lot of improvement to valve.Such as being solid valve from initial valve, develop hollow valve in order to carry out loss of weight and economical with materials afterwards, but hollow valve there be not aspect the valve heat radiation anything to help, for this reason, people have designed hollow sodium filling valve.
Announce a kind of patent of valve like State Intellectual Property Office of the People's Republic of China, it is made up of head, shaft and plug, and heart portion is that whole hollow connects with the variation of profile.It is the metal pipe that has fine and closely woven striped with inwall; Earlier stick one deck wick at tube wall; Refill powdered inorganic compounds such as full ability infusible sodium sulfate of water-soluble and when compacting, sodium chloride, perhaps fill low-melting alloy and make fill material, with plug and baffle plate that sealed at both ends is firm; Gather material and behind die-forging forming, excise overlap through the electricity rammer, this fill material is taken out in boring in the end; It is firm with borehole sealing behind the heat-conducting mediums such as sodium metal, Dowtherm or water to recharge, and promptly becomes the hot tube lightweight air valve.It has improved the big and undesirable situation of conducting heat of quality of existing valve; Constitute the fast hot tube lightweight air valve of the little heat conduction again of a mass.The transmission that has the temperature up and down that helps valve of hollow sodium filling valve has certain help to the life-span that prolongs valve.But because the fusing point of sodium is 881.4 ℃ of 97.82 ℃, boiling point, compare the working environment up to 2200 ℃ of valve, the Applicable temperature of hollow sodium filling valve is limited in scope.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of valve of motor of good heat dissipation effect.
The purpose of the utility model can realize through following technical proposal: a kind of valve of motor, comprise body with cavity, and be filled with lithium in the described cavity.
A certain amount of lithium metal of filling in the cavity of valve is realized valve temperature transfer up and down.The fusing point of lithium is 180.54 ℃, and valve temperature at work is higher, so lithium is present in liquid state in the valve of high temperature, the liquid lithium that valve can drive in the cavity in moving up and down moves up and down, thereby the heat of valve is delivered to low temperature area from the high-temperature zone.
In the valve of above-mentioned motor, 10%～80% of the volume duty chamber volume of described lithium.10～80% lithium flow range in cavity is bigger, and the heat that carries in the motion is also more, can transmit temperature better.
In the valve of above-mentioned motor, described body comprises head in the form of annular discs and is shaft-like afterbody, and described cavity comprises cavity one that is positioned at head and the cavity two that is positioned at afterbody, and described cavity one and cavity two are connected.Discoid head cavity is bigger, the heat that lithium absorbs in the cavity one of head on a large scale; It is shaft-like that afterbody is, and it is shaft-like that cavity also is, and the cross section is little than head, and flowing in the cavity two of lithium in afterbody is easier to, and helps the transmission temperature of lithium.
In the valve of above-mentioned motor, the wall thickness of described head is 0.5mm～4mm.Suitable wall thickness technical ability guarantees the intensity of body, can make the cavity maximization again, alleviates the weight of valve.
Compared with prior art, the valve of this motor has the following advantages:
1, the fusing point of lithium is 1347 ℃ of 180.54 ℃, boiling point, and fusing point surpasses 1000 ℃ to the temperature range of boiling point, has bigger Applicable temperature and transmits scope;
2, the fusing point of lithium is higher than the fusing point of sodium, is the maximum metal of specific heat on the earth, can absorb more heat, helps to transmit the temperature of valve;
3, the density of lithium metal is lower than sodium metal and iron, also is metal the lightest on the earth, can reduce the weight of valve, helps the lightweight of motor.
Description of drawings
Fig. 1 is the structural representation of the utility model when not filling lithium.
Fig. 2 is the structural representation after the utility model is filled lithium.
Fig. 3 is the structural representation of present embodiment one.
Fig. 4 is the structural representation of present embodiment two.
Among the figure, 1, body; 2, lithium; 3, head; 4, afterbody; 5, cavity; 51, cavity one; 52, cavity two; 6, baffle plate; 7, through hole; 8, plug.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Embodiment one
Fig. 1, shown in Figure 2, the valve of this motor comprise the body 1 with cavity 5, are filled with lithium 2 in the cavity 5.Body 1 comprises head in the form of annular discs 3 and is shaft-like afterbody 4, and cavity 5 comprises cavity 1 that is positioned at head 3 and the cavity 2 52 that is positioned at afterbody 4, and cavity 1 and cavity 2 52 are connected.Head 3 wall thickness of body 1 are 0.5mm～4mm, and present embodiment adopts 2mm.Cavity 2 52 is cylindric, 10%～80% of volume duty chamber 5 volumes of lithium 2.
As shown in Figure 3, head 3 is fixed with the baffle plate 6 that makes whole cavity 5 sealings, and baffle plate 6 is fixed by welding on the head 3.Earlier lithium 2 is filled in 3 the space from the head, and then fixes with baffle plate 6 sealed cavities 5 and with head 3 welding.
Embodiment two
Embodiment two and embodiment's one similar, as shown in Figure 4, its difference is that the head 3 of body 1 is one-body molded, and body 1 afterbody 4 has the through hole 7 that is communicated with cavity 2 52 and make through hole 7 and the plug 8 of extraneous sealing, plug 8 fixes with through hole 7.Through hole 7 from afterbody 4 charges into lithium 2 in the cavity 2 52 earlier, again plug 8 is fixed on through hole 7 ports and makes plug can seal the port of through hole.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as body 1, lithium 2, head 3, afterbody 4, cavity 5, cavity 1, cavity 2 52, baffle plate 6, through hole 7, plug 8 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (3)
1. the valve of a motor comprises it is characterized in that the have cavity body (1) of (5), is filled with lithium (2) in the described cavity (5), 10%～80% of volume duty chamber (5) volume of described lithium (2).
2. the valve of motor according to claim 1; It is characterized in that; Described body (1) comprises head in the form of annular discs (3) and is shaft-like afterbody (4); Described cavity (5) comprises cavity one (51) that is positioned at head (3) and the cavity two (52) that is positioned at afterbody (4), and described cavity one (51) and cavity two (52) are connected.
3. the valve of motor according to claim 2 is characterized in that, the wall thickness of described head (3) is 0.5mm～4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204799547U CN202483661U (en) | 2011-11-28 | 2011-11-28 | Air valve of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204799547U CN202483661U (en) | 2011-11-28 | 2011-11-28 | Air valve of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483661U true CN202483661U (en) | 2012-10-10 |
Family
ID=46958088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204799547U Expired - Fee Related CN202483661U (en) | 2011-11-28 | 2011-11-28 | Air valve of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483661U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3032053A1 (en) * | 2014-12-10 | 2016-06-15 | General Electric Company | System and method of cooling valve with material in cavity |
| CN106988825A (en) * | 2016-01-20 | 2017-07-28 | 马勒国际有限公司 | Metal hollow valve for the internal combustion engine of utility car |
| CN111502792A (en) * | 2014-08-27 | 2020-08-07 | 富士特殊气门有限公司 | Hollow engine valve |
-
2011
- 2011-11-28 CN CN2011204799547U patent/CN202483661U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502792A (en) * | 2014-08-27 | 2020-08-07 | 富士特殊气门有限公司 | Hollow engine valve |
| EP3032053A1 (en) * | 2014-12-10 | 2016-06-15 | General Electric Company | System and method of cooling valve with material in cavity |
| US9683467B2 (en) | 2014-12-10 | 2017-06-20 | General Electric Company | System and method of cooling valve with material in cavity |
| CN106988825A (en) * | 2016-01-20 | 2017-07-28 | 马勒国际有限公司 | Metal hollow valve for the internal combustion engine of utility car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20201128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |