CN202832821U - Four-valve gas engine - Google Patents
Four-valve gas engine Download PDFInfo
- Publication number
- CN202832821U CN202832821U CN2012204746722U CN201220474672U CN202832821U CN 202832821 U CN202832821 U CN 202832821U CN 2012204746722 U CN2012204746722 U CN 2012204746722U CN 201220474672 U CN201220474672 U CN 201220474672U CN 202832821 U CN202832821 U CN 202832821U
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- CN
- China
- Prior art keywords
- longitudinal axis
- spark plug
- mounting hole
- cylinder sleeve
- plug mounting
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses a four-valve gas engine. The four-valve gas engine comprises a cylinder sleeve, a cylinder cover and a piston, wherein the cylinder cover is arranged on the top of the cylinder sleeve, the top of the piston is provided with a combustion chamber in the shape of a deep basin, the central longitudinal axis of the combustion chamber is located on one side of the central longitudinal axis of the cylinder sleeve, the cylinder cover is provided with a spark plug mounting hole, and the axis line of the spark plug mounting hole is located on the other side of the central longitudinal axis of the cylinder sleeve. The four-valve gas engine is simple and reasonable in structure. Due to the fact that the central longitudinal axis of the combustion chamber and the axis line of the spark plug mounting hole are arranged on the two sides of the central longitudinal axis of the cylinder sleeve, the propagation velocity of flames in the combustion chamber is increased through air inlet vortex, the combustion duration is combustion is shortened, the consumption rate of fuel is lowered, and the reliability of an air exhaust system is improved.
Description
Technical field
The utility model relates to field of internal combustion engine, particularly a kind of four valve gas engines.
Background technique
Gas engine output is fewer at present, and manufacturer adopts the diesel engine simple refit to make gas engine in order to guarantee the profit basically.Therefore the gas engine of at present repacking production has following characteristics:
The one, intake and exhaust port is used diesel engine fully.For gas engine, although the employing ignition way, owing to basically use at present diesel engine cylinder cover, so air-flow also is the eddy current (air-flow that rotates around the cylinder sleeve longitudinal axis in eddy current-cylinder in the cylinder, the general compression ignition engine that is used for is such as diesel engine etc.).It is eddy current that the diesel engine cylinder cover intake duct makes the air-flow that enters in the cylinder, rather than roll stream and (roll the air-flow that rotates around transverse axis in stream-cylinder, the general spark-ignition engine that is used for, such as petrol engine etc.), the fuel oil that eddy current can spray into oil sprayer is with flow rotation, and the air-fuel mixture uniformity is improved like this, thereby improves burning, improve discharging, so eddy current is very favorable to diesel engine; Then use is little yet eddy current is to gas engine, because the burning of gas engine and air are pre-mixed, does not therefore need eddy current to improve mixing uniformity.The stream that rolls that need to be used for strengthening velocity of propagation of flame does not then have.
The 2nd, the direct spark plug mounting hole that the oil spraying device of diesel oil engine hole is arranged to gas engine, as depicted in figs. 1 and 2, gas engine comprises: cylinder sleeve 1, cylinder cap 2 and piston 3, cylinder cap 2 are located at cylinder sleeve 1 top, and piston 3 moves up and down in cylinder sleeve 1; Piston 3 tops offer deep dish firing chamber 31; Wherein, the center longitudinal axis 11 of cylinder sleeve 1 is positioned at the left side of the center longitudinal axis 32 of firing chamber 31.
Offer respectively two intake duct holes 21 on the cylinder cap 2, two gas-discharging channel holes 22 and spark plug mounting hole 23, wherein, two intake duct holes 21 are distributed in cylinder cap 2 left sides, two gas-discharging channel holes 22 are distributed in cylinder cap 2 right sides, spark plug mounting hole 23 is positioned at two intake duct holes 21 and two gas-discharging channel holes 22 are middle, because four diesel engine are in order to reduce intake resistance, improve air inflow, usually intake valve is larger than exhaust valve, so that oil injector hole generally is positioned at the inclined to one side air outlet flue side of cylinder sleeve 1 center longitudinal axis 11,32 of firing chamber 31 center longitudinal axis are consistent with the oil sprayer center, be positioned at equally the inclined to one side air outlet flue side of cylinder sleeve 1 center longitudinal axis 11, also naturally be positioned at (spark plug mounting hole 23 axis overlap with firing chamber 31 center longitudinal axis 32) on 31 center longitudinal axis 32 of firing chamber so that repack spark plug mounting hole 23 into like this, and be co-located at the right side (deflection air outlet flue side) of cylinder sleeve 1 center longitudinal axis 11.
There is following shortcoming in spark plug mounting hole 23 axis with the layout that firing chamber 31 center longitudinal axis 32 overlap: the one, and spark plug is positioned at the center, firing chamber, and before igniting, gas in the jar is squeezed in the firing chamber in piston moves upward process, the eddy current of air inlet is centered close to 31 center longitudinal axis, 32 places, firing chamber, thereby the eddy current center is basically consistent with the spark plug center, and eddy current central gas stream speed is very low, near the gas of the spark plug eddy current center is at first lighted in the eddy current center fire, by this gas flame is propagated to gas all around again, at this moment eddy current central gas stream speed is very low, be unfavorable for accelerating velocity of propagation of flame, combustion duration is long, and specific fuel consumption is high; The 2nd, because velocity of propagation of flame is slow, if ignition angle is easily caused in advance pinking, if ignition angle is postponed then can cause delivery temperature high, the reliability of reduction vent systems.
The model utility content
The utility model is in order to overcome defective in the above-mentioned prior art, provide a kind of simple and reasonable, firing chamber center longitudinal axis and spark plug mounting hole axis are arranged in the both sides of cylinder sleeve center longitudinal axis, improved the velocity of propagation of flame combustion chamber by intake swirl, combustion duration is short, specific fuel consumption is low, and four high valve gas engines of vent systems reliability.
For achieving the above object, provide a kind of four valve gas engines according to the utility model, comprising: cylinder sleeve, cylinder cap and piston, cylinder cap are located at the cylinder sleeve top, and the top of piston offers the deep dish firing chamber; The center longitudinal axis of firing chamber is positioned at a side of cylinder sleeve center longitudinal axis; Cylinder cap offers spark plug mounting hole, and the axis of spark plug mounting hole is positioned at the opposite side of cylinder sleeve center longitudinal axis.
In the technique scheme, also offer two intake duct holes and two gas-discharging channel holes on the cylinder cap, spark plug mounting hole is positioned in the middle of two intake duct holes and two gas-discharging channel holes, and is partial to a side of two gas-discharging channel holes.
In the technique scheme, the lateral separation of firing chamber center longitudinal axis and spark plug mounting hole axis misalignment is 5-20mm.
Compared with prior art, the utlity model has following beneficial effect: this four valves gas engine is simple and reasonable, firing chamber center longitudinal axis and spark plug mounting hole axis are arranged in the both sides of cylinder sleeve center longitudinal axis, improved the velocity of propagation of flame combustion chamber by intake swirl, shortened combustion duration, reduce specific fuel consumption, and improved the reliability of vent systems.
Description of drawings
Fig. 1 is the structural representation of existing four valve gas engines;
Fig. 2 is the sectional structure schematic diagram of the A-A direction of Fig. 1;
Fig. 3 is the structural representation of four valve gas engines of the present utility model;
Fig. 4 is the sectional structure schematic diagram of the B-B direction of Fig. 3;
Description of reference numerals:
The 1-cylinder sleeve, 11-center longitudinal axis, 2-cylinder cap, 21-intake duct hole, the 22-gas-discharging channel hole, 23-spark plug mounting hole, 3-piston, the 31-firing chamber, 32-center longitudinal axis, 4-cylinder sleeve, the 41-center longitudinal axis, 5-cylinder cap, 51-intake duct hole, the 52-gas-discharging channel hole, 53-spark plug mounting hole, 54-axis, the 6-piston, 61-firing chamber, 62-center longitudinal axis.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.It will be appreciated that, mentioned in the following mode of execution of the present utility model " on ", D score, " left side ", " right side ", " front " and " reverse side " be all take the direction shown in each figure as benchmark, these words that are used for limiting direction only are for convenience of explanation, do not represent the restriction to the concrete technological scheme of the utility model.
As shown in Figure 3 and Figure 4, four valve gas engines of the present utility model are reequiped by four-valve diesel engine, firing chamber center longitudinal axis and spark plug mounting hole axis are arranged in the both sides of cylinder sleeve center longitudinal axis, improve the velocity of propagation of flame combustion chamber by intake swirl, shorten combustion duration, reduce specific fuel consumption, and improve the reliability of vent systems, concrete structure comprises: cylinder sleeve 4, cylinder cap 5 and piston 6, cylinder cap 5 lids are located at cylinder sleeve 4 tops, form the cavity that moves up and down of piston 6; Piston 6 is positioned at this motion cavity, and the top offers deep dish firing chamber 61; Wherein, firing chamber 61 center longitudinal axis 62 are positioned at the left side of cylinder sleeve 4 center longitudinal axis 41.
Offer respectively two intake duct holes 51 on the cylinder cap 5, two gas-discharging channel holes 52 and spark plug mounting hole 53, wherein, two intake duct holes 51 are distributed in cylinder cap 5 left sides, two gas-discharging channel holes 52 are distributed in cylinder cap 5 right sides, spark plug mounting hole 53 is positioned at two intake duct holes 51 and two gas-discharging channel holes 52 are middle, because former diesel engine is in order to reduce intake resistance, improve air inflow, usually intake valve is larger than exhaust valve, interfere with the edge of cylinder cap 5 for fear of entering two intake duct holes 51, so that the spark plug mounting hole 53 that is repacked into by oil injector hole is positioned at a side of being partial to two gas-discharging channel holes 52, namely can find out from sectional view, the axis 54 of spark plug mounting hole 53 is positioned at the right side of cylinder sleeve 4 center longitudinal axis 41.
Like this, as shown in Figure 4, the axis 54 of firing chamber 61 center longitudinal axis 62 and spark plug mounting hole 53 is arranged in the both sides of cylinder sleeve 4 center longitudinal axis 41, it is a side of firing chamber 61 center longitudinal axis, 62 deflection gas-discharging channel holes 52, one side in the axis 54 deflection intake duct holes 51 of spark plug mounting hole 53, make the axis 54 of firing chamber 61 center longitudinal axis 62 and the spark plug mounting hole 53 one section suitable lateral separation that staggers, this lateral separation is 5-20mm.
At this moment, spark plug is near the inflammable gas the axis 54 of light up plug mounting hole 53 at first, because this inflammable gas of lighting is not or not the very low eddy current center of airspeed (firing chamber 61 center longitudinal axis 62 places), so that this inflammable gas of lighting can utilize eddy current to accelerate the towards periphery velocity of propagation of inflammable gas of flame, thereby shortening combustion duration, reduce specific fuel consumption, reduce delivery temperature; Avoid the pinking that causes in advance because of ignition angle, and ignition angle to postpone the delivery temperature that causes high, and then improve the vent systems reliability.
This four valves gas engine is simple and reasonable, firing chamber center longitudinal axis and spark plug mounting hole axis are arranged in the both sides of cylinder sleeve center longitudinal axis, improved the velocity of propagation of flame combustion chamber by intake swirl, shortened combustion duration, reduce specific fuel consumption, and improved the reliability of vent systems.
Above disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (3)
1. a valve gas engine is characterized in that, comprising: cylinder sleeve, cylinder cap and piston, and described cylinder cap is located at the cylinder sleeve top, and the top of described piston offers the deep dish firing chamber; The center longitudinal axis of described firing chamber is positioned at a side of described cylinder sleeve center longitudinal axis; Described cylinder cap offers spark plug mounting hole, and the axis of described spark plug mounting hole is positioned at the opposite side of described cylinder sleeve center longitudinal axis.
2. four valve gas engines according to claim 1, it is characterized in that: also offer two intake duct holes and two gas-discharging channel holes on the described cylinder cap, described spark plug mounting hole is positioned in the middle of described two intake duct holes and two gas-discharging channel holes, and is partial to a side of described two gas-discharging channel holes.
3. four valve gas engines according to claim 1 and 2, it is characterized in that: the lateral separation of described firing chamber center longitudinal axis and spark plug mounting hole axis misalignment is 5-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204746722U CN202832821U (en) | 2012-09-18 | 2012-09-18 | Four-valve gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204746722U CN202832821U (en) | 2012-09-18 | 2012-09-18 | Four-valve gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832821U true CN202832821U (en) | 2013-03-27 |
Family
ID=47944551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204746722U Expired - Fee Related CN202832821U (en) | 2012-09-18 | 2012-09-18 | Four-valve gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670773A (en) * | 2012-09-18 | 2014-03-26 | 广西玉柴机器股份有限公司 | Four-valve gas engine |
-
2012
- 2012-09-18 CN CN2012204746722U patent/CN202832821U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670773A (en) * | 2012-09-18 | 2014-03-26 | 广西玉柴机器股份有限公司 | Four-valve gas engine |
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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: 20130327 Termination date: 20170918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |