CN202883094U - Combustion chamber and combustion chamber system and internal combustion engine of direct ejector used for side installation - Google Patents
Combustion chamber and combustion chamber system and internal combustion engine of direct ejector used for side installation Download PDFInfo
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- CN202883094U CN202883094U CN2012202929555U CN201220292955U CN202883094U CN 202883094 U CN202883094 U CN 202883094U CN 2012202929555 U CN2012202929555 U CN 2012202929555U CN 201220292955 U CN201220292955 U CN 201220292955U CN 202883094 U CN202883094 U CN 202883094U
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- sparger
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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 relates to a combustion chamber, a combustion chamber system and an internal combustion engine of a direct ejector used for side installation. High-degree vortex is formed in opposed pistons and opposed air cylinder type engine in the process of scavenging, and the vortex lasts into a combustion stroke. One or multiple ejectors are arranged on the periphery of the combustion chamber of an engine, and eject fuel into air when the air has the highest tangential speed. Air of vortex enables jet flow to be pushed together, and large amount of jet flow is pushed into an air cylinder wall. According to mode of execution, an exhaust piston is provided with a convex portion and concave portion. A protrusion portion which extends inwards is arranged on the convex portion of the exhaust piston to prevent the vortex.
Description
Technical field
The utility model relates to a kind of combustion chamber structure that is fit to when sparger is installed with respect to combustion chamber side.
Background technique
Opposed pistons, opposed cylinder engine have firing chamber, air inlet piston and the exhaust pition that is limited by cylinder wall.Fuel injector or a pair of fuel injector arrangement are in cylinder wall.Typically, the fuel injector in compression-ignited (diesel oil) motor is installed in central authorities.By central injection, air (fuel is injected in this air) relatively placidity is even there is a large amount of vortexs.When fuel jet further was penetrated in the firing chamber, fuel jet was subject to the impact of vortex air more.Yet when fuel jet had been penetrated in the vortex air, a large amount of fuel had been dispersed and jet is scatter well.On the contrary, by being installed in the fuel injector in the cylinder wall, when leaving sparger at the tip of fuel jet, the air in the cylinder acts on the tip of this fuel jet with the highest tangential velocity.Figure 1 illustrates an example, wherein with three engine speeds: 1000,2000 and 4000rpm, eddy current quantity is 2, the aperture is 100mm.Tangential velocity at the cylinder axis place is zero, and is respectively 10.5,21 and 42m/s in the speed of cylinder peripheral region.Referring now to Fig. 2, the problem of high tangential velocity is that fuel jet 2a, the 2b, 2c and the 2d that send from sparger 4 are towards cylinder wall 6 dislocations.As can partly being explained by the part that does not wherein have fuel jet of cylinder 8, air utilizes poor.View among Fig. 2 shows the envelope of the intensive part of jet.What do not illustrate is, the outward edge of spraying is overlapping, and this may carry secretly air is disadvantageous.
A kind of mode that overcomes this is that gas handling system is designed so that this gas handling system produces minimum eddy current in chamber.Yet in opposed pistons, opposed cylinder engine, air is guided through the port that is not covered by the air inlet piston in the cylinder wall.In order to promote very crucial scavenging for realized high power by this two stroke structures for, enter air-flow in the cylinder relatively strong and impel the generation eddy current.Eddy current is minimized to produce passive impact to scavenging, thereby engine power is reduced.Two targets are mutual difference to a great extent.
Another selection is that jet is introduced in the eddy current slightly, thereby makes jet obtain desirable distribution after by the eddy current dislocation in cylinder.Possible is, finds a jet direction, and it can be under an engine speed, namely under a kind of eddy current condition, but is not to provide desirable distribution under a series of engine speeds that run in internal-combustion engine.Because tangential velocity is generally linear with engine speed and the ratio of minimum engine speed and maximum engine speed is typically about octuple, the about octuple of resultant tangential velocity variation.
The model utility content
In order to overcome at least in part the challenge that is brought by the sparger that is installed in the cylinder wall periphery, a kind of mode of execution of firing chamber is disclosed, this firing chamber by cylinder liner, be suitable for air inlet piston reciprocating in cylinder liner, place cylinder liner and most advanced and sophisticated be often referred to the first sparger to the cylinder liner center, place cylinder liner and most advanced and sophisticated be often referred to second sparger at cylinder liner center and be suitable for exhaust pition reciprocating in cylinder liner limit.The piston head of exhaust pition has sunk part and convex portion, and most of sunk part is usually located at the center of piston head.Sunk part also has periphery with piston with most first passage that is communicated with of sunk part and with the periphery of piston and most second channel that is communicated with of sunk part.Convex portion has two ridges that extend inward in the sunk part, and the line that connects two ridges is substantially perpendicular to the line at the tip that connects the first and second spargers.The first sparger points to first passage, advance to sunk part so that the fuel that sprays from the first sparger passes first passage, and the second sparger points to second channel, advances to sunk part so that the fuel that sprays from the second sparger passes second channel.The top surface of the top of exhaust pition and air inlet piston towards each other.The top of air inlet piston normally has a concavity part of the sphere of predetermined diameter; The convex portion of exhaust pition normally has a male member of the sphere of predetermined diameter, as it is measured to be parallel to the central axis of cylinder liner, and whole exhaust pition convex portion is from the identical distance of the top dislocation of air inlet piston basically.Sunk part also has the spine of generally extending between two ridges of convex portion.The top of air inlet piston is a concavity part of sphere normally, and this sphere has the passage that is limited in the piston head; And passage points to the first and second spargers.
In another embodiment, chamber system comprises the firing chamber that the piston head by the piston in cylinder wall and the cylinder wall limits, and wherein piston head has the convex portion that mainly is close to the cylinder wall location.Piston head has the sunk part that mainly is positioned at convex portion.Described sunk part has at least one passage that extends out to the piston periphery.At least a portion of sunk part generally forms fan shape, and the bottom of this fan shape overlaps with passage.Described system also comprises the fuel injector that is installed in the cylinder wall, and the tip of this fuel injector is positioned at radial position place roughly the same with the passage of piston head, enters fan-shaped part so that the fuel that sends from fuel injector passes passage.In the mode of execution of some, piston is exhaust pition, and the firing chamber is further limited by the air inlet piston in the cylinder wall.The piston head of air inlet piston generally comprises the part of the concavity sphere with predetermined diameter.The convex portion of exhaust pition generally comprises the part of the convex sphere with predetermined diameter, the land portions of each piston head is pointed to each other, so that the convex portion of the piston head of air inlet piston and exhaust pition has constant span in all points with respect to the exhaust pition convex portion.
In some embodiments, piston head has the first and second passages that extend out to the piston periphery.Combustion system also comprises the first fuel injector that is installed in the cylinder wall, the tip of this first fuel injector is positioned at radial position place roughly the same with the first passage of piston head, so that passing first passage, the fuel that sends from the first fuel injector enters sunk part, and described fuel system also comprises the second fuel injector that is installed in the cylinder wall, the tip of this second fuel injector is positioned at radial position place roughly the same with the second channel of piston head, enters sunk part so that the fuel that sends from the second fuel injector passes second channel.In some embodiments, the first and second passages are relative along diameter substantially.
Sunk part is configured as the first and second fans substantially, and the bottom of the first fan overlaps with first passage.The bottom of the second fan overlaps with second channel.Approximate central axis location along cylinder wall, the top that is positioned at central authorities of the first and second fans.In some embodiments, sunk part has the spine that is similar to equidistant placement with two spargers.Convex portion has the first and second ridges that extend inward in the sunk part, and the line on the part institute edge in most sensing of ridge is approximately perpendicular to the line that the first and second injector tips are linked to each other.Convex portion is a male member of sphere.
Also disclose and in internal-combustion engine, had cylinder wall, be suitable for air inlet piston reciprocating in cylinder wall and be suitable for exhaust pition reciprocating in cylinder wall (piston head of exhaust pition is towards the piston head of air inlet piston).The piston head of exhaust pition has convex portion and sunk part, and sunk part forms at least one fan-shaped part.Motor comprises that also at least one passes the fuel injector that cylinder wall is installed, and when air inlet piston and exhaust pition during in their hithermost positions, the gap between the top of air inlet and exhaust pition is pressed close at the tip of this fuel injector.In one embodiment, motor has and passes approximate two spargers (the first and second spargers) relatively installed along diameter of cylinder wall, and sunk part forms the first and second fan-shaped parts, the first sparger is pointed in the bottom of the first fan-shaped part, and the second sparger is pointed in the bottom of the second fan-shaped part.Fan-shaped part has the bottom that extends to the piston periphery, and is positioned at substantially the piston center from the top of the extended fan-shaped part in bottom.Convex portion has two ridges that inwardly extend towards the piston center.Connect the line of two ridges substantially perpendicular to the line that connects the first and second injector tips.
Description of drawings
Fig. 1 shows the velocity profile that is caused by eddy current in the cylinder;
Fig. 2 shows the diagram that the sparger from be installed in wall sent, entered the fuel jet in the eddy current based on projection image;
Fig. 3 is the plan view that has the exhaust pition head in the mode of execution of sparger in a side;
Fig. 4 is the cross-sectional view of Fig. 3 exhaust pition head and air inlet piston crown;
Fig. 5 is the plan view of air inlet piston crown;
Fig. 6 is the plan view that has the exhaust pition head in the mode of execution of sparger in both sides;
Fig. 7 is the cross-sectional view of Fig. 6 exhaust pition head and air inlet piston crown;
Fig. 8 is the diagram of opposed pistons, opposed cylinder engine.
Embodiment
As one of ordinary skill in the art will appreciate that, the various features of the mode of execution that illustrates and describe with reference to the arbitrary width of cloth in the accompanying drawing can be with combined in the feature shown in other accompanying drawings of one or more, to form the alternate embodiments that does not clearly illustrate or describe.Shown in the typical application that is combined as of feature representational mode of execution is provided.But the various Feature Combinations that are consistent with disclosure teach literature and modification may be desirable for special application or enforcement.Those of ordinary skills can recognize similar application or the enforcement that conforms to open source literature, for example wherein parts with accompanying drawing in slightly different being disposed in order shown in the mode of execution.Those of ordinary skills can recognize that the instruction of disclosure document can be applied to other application or enforcement.
In order to promote to be provided with at least part of disturbance from the firing chamber of intake process with regard to lasting eddy current from the distribution of fuel the firing chamber of the fuel injector ejection of a side or the installation of many sides.
In Fig. 3, show the piston head 10 of exhaust pition.Sparger 12 is installed to be and passes cylinder liner 14, and the part of this cylinder liner has been shown among Fig. 3.Piston has the slight inclined-plane around the piston periphery.The surface of piston head 10 namely except the inclined-plane, is convex portion or is sunk part 20.Sunk part 20 also is called piston cup sometimes, but is not called as piston cup in disclosure document, because the shape of sunk part 20 and comparing in other firing chambers are not classical bowl-type.From the top, sunk part 20 has fan shape.Piston head 10 has from the piston periphery and leads to little passage 21 sunk part 20.Piston head 10 is all parts of the piston crown 22 that can see in Fig. 3, and namely circular groove and ring bank part and piston skirt partly are sightless.In some embodiments, piston is two-piece type: head and skirt section, it is fastened and is connected together or otherwise connection.
Figure 4 illustrates the cross-sectional side view of piston crown 22.Convex portion 18 is the part of sphere substantially, and the surface of convex portion is convex.Sunk part 22 has downward-sloping part 28 and wall section 30.Vertical wall section 30 only is an example.Alternatively, wall section can tilt or tilt away from sparger 12 towards sparger 12 backward.In Fig. 4, also show the piston crown 34 for the air inlet piston.Piston crown 22 and 34 is opposed pistons and is depicted as in they hithermost positions during reciprocating in the cylinder wall (cylinder wall is not shown in Fig. 4).The piston head of air inlet piston 36 is the concavity sphere identical with the spherical diameter on surface 18 substantially, thereby gap between the two almost is constant between convex surfaces 18 and piston head 36.
Figure 5 illustrates the three-dimensional view of air inlet piston crown 44.Piston head 46 has passage 42, holding the fuel jet from two along the opposed fuel injector of diameter (sparger is not shown) ejection, thereby can enter in the fuel chambers and can the percussion piston top.
Figure 6 illustrates exhaust pition head 50, this exhaust pition head holds the injected fuel spray of spraying from two spargers 52.The tip of sparger be arranged in pass piston crown 50 along on the dotted line 53 of diameter.Piston crown has convex portion 54 and sunk part 56.Convex portion 54 has a plurality of ridges 58 that extend internally, and these ridges 58 are generally along dot and dash line 59 centerings along diameter, this along the dot and dash line 59 of diameter approximately perpendicular to the line 53 along diameter.In the mode of execution of Fig. 6, sunk part 56 has from the piston periphery and leads to passage the fan-shaped part 62.Between fan-shaped part 62, be provided with spine 64.Ridge 54 and spine 64 upset eddy current.In other replacement scheme, do not comprise spine 64, become the possibility of focus to avoid this spine.Another advantage that is provided with ridge 58 is to reduce the volume (volume between piston head) in the firing chamber in ridge 58 hithermost positions, to promote the realization of high compression ratio in requiring the mode of execution of high compression ratio.
Fan-shaped part 62 is asymmetric about line 53.They reverse about 5 degree along the direction of eddy current.Although piston crown 50 is designed to upset eddy current, eddy current still exists and fan-shaped part 62 is offset so that the firing chamber is aimed at fuel jet.The skew of 5 degree is optimum degree and the compromise value between the optimum degree under the highest engine speed under minimum engine speed.In the mode of execution that substitutes, be not provided with skew.In other mode of execution, according to the details of engine design, air inlet design etc., side-play amount is greater than or less than 5 degree.
In Fig. 7, with cross-sectional view piston crown 50 has been shown, in cross-sectional view, has also had air inlet piston crown 66.The top 68 of piston crown 66 can be the part of concavity sphere, and convex surfaces 54 can be the part of convex sphere.In one embodiment, the maximum recess point of the concavity sphere at top 68 overlaps with the longitudinal axis of cylinder (not shown), and piston is reciprocating in this cylinder.Alternatively, the concavity sphere is offset; In yet another alternative, the top 68 of piston crown 66 has more complicated shape.Tube- surface 68 and 54 part of sphere whether not, they can be designed so that their common sensings, form one through the gap 70 of the special height of convex surfaces 54.
Fig. 8 neutral body show a kind of mode of execution of opposed pistons, opposed cylinder type (OPOC) motor 110.Reciprocating in air inlet piston 112 and exhaust pition 114 each (not shown cylinder is to be easier to observe piston) in the first and second cylinders.An exhaust pition 114 is attached to the axle journal (invisible) of bent axle 120 via push rod 116, other air inlet piston 114 is attached to axle journal via two push rods 118.Similarly, in the air inlet piston connect via push rod 116 and one connect via two push rods 118.
Described best mode in detail, and those of ordinary skill in the art can expect various alternative design and implementation modes in the scope of following claim.Wherein one or more mode of executions are described as providing advantage or are preferred in one or more desirable characteristic aspect with respect to other mode of executions and/or with respect to prior art, but it is compromise that those of ordinary skills can expect making between each feature, to realize desirable system property, this can depend on specific application or enforcement.These attributes including, but not limited to: cost, intensity, durability, life-cycle costing, marketability, outward appearance, packing, size, applicability, weight, manufacturing, be easy to assembling etc.Be described as be in the relative unacceptable mode of execution of other mode of executions of one or more characteristic aspect not beyond the scope of the disclosure document of asking for protection.
Claims (20)
1. firing chamber that is used for the direct sparger that side installs comprises:
Cylinder liner;
Can be in described cylinder liner reciprocating air inlet piston;
Be arranged in the first sparger in the described cylinder liner, the center of described cylinder liner is pointed at the tip of this first sparger;
Be arranged in the second sparger in the described cylinder liner, the center of cylinder liner is pointed at the tip of this second sparger; And
Can be in described cylinder liner reciprocating exhaust pition; The piston head of described exhaust pition has sunk part and convex portion; Most of described sunk part is positioned at the center of described piston head; Described sunk part also has periphery with described piston with most first passage that is communicated with of described sunk part and with the periphery of described piston and most second channel that is communicated with of described sunk part; It is characterized in that, described convex portion has two ridges that extend inward in the described sunk part, and the line that connects two described ridges is substantially perpendicular to the line at the tip of the tip that connects described the first sparger and described the second sparger.
2. according to firing chamber claimed in claim 1, it is characterized in that, described the first sparger points to described first passage, so that passing described first passage, the fuel that sprays from described the first sparger advances to described sunk part, described the second sparger points to described second channel, advances to described sunk part so that the fuel that sprays from described the second sparger passes described second channel.
3. according to firing chamber claimed in claim 1, it is characterized in that, the top surface of the top of described exhaust pition and described air inlet piston towards each other; The top of described air inlet piston is a concavity part with sphere of predetermined diameter; The convex portion of described exhaust pition is the male member with sphere of predetermined diameter; And the basically whole convex portion of described exhaust pition is from the identical distance of the top dislocation of described air inlet piston.
4. according to firing chamber claimed in claim 1, it is characterized in that, described sunk part also has the spine of generally extending between two ridges of described convex portion.
5. according to firing chamber claimed in claim 1, it is characterized in that, the top of described air inlet piston is a concavity part of sphere, and this sphere has the passage that is limited in the piston head; And described passage points to described the first sparger and described the second sparger.
6. the chamber system of an internal-combustion engine, described chamber system comprise by:
Cylinder wall; And
The firing chamber that the piston head of the piston in described cylinder wall limits is characterized in that, described piston head has the convex portion that mainly is close to described cylinder wall location; Described piston head has the sunk part that mainly is positioned at described convex portion; Described sunk part has at least one passage of the periphery that extends out to described piston; And at least a portion of described sunk part generally forms fan shape, and the bottom of this fan shape overlaps with described passage.
7. according to chamber system claimed in claim 6, described system also comprises:
Be installed in the fuel injector in the described cylinder wall, it is characterized in that, the tip of this fuel injector is positioned at and substantially identical radial position place of the passage of described piston head, enters the part of described fan shape so that the fuel that sends from described fuel injector passes described passage.
8. according to chamber system claimed in claim 6, it is characterized in that, described piston is exhaust pition, and described firing chamber is also further limited by the air inlet piston in described cylinder wall.
9. according to chamber system claimed in claim 8, it is characterized in that, the piston head of described air inlet piston comprises the part of the concavity sphere with predetermined diameter; The convex portion of described exhaust pition comprises the part of the convex sphere with predetermined diameter; And the land portions of each described piston head points to each other, so that the convex portion of the piston head of described air inlet piston and described exhaust pition has constant span in all points with respect to the convex portion of described exhaust pition.
10. according to chamber system claimed in claim 6, it is characterized in that, described piston head has first passage and the second channel of the periphery that extends out to described piston, and described system also comprises:
Be installed in the first fuel injector in the described cylinder wall, the tip of this first fuel injector is positioned at and substantially identical radial position place of the first passage of described piston head, enters the described sunk part so that the fuel that sends from described the first fuel injector passes described first passage; And
Be installed in the second fuel injector in the described cylinder wall, the tip of this second fuel injector is positioned at and substantially identical radial position place of the second channel of described piston head, enters the described sunk part so that the fuel that sends from described the second fuel injector passes described second channel.
11. according to chamber system claimed in claim 10, it is characterized in that, described first passage is relative along diameter substantially with described second channel.
12. according to chamber system claimed in claim 10, it is characterized in that, described sunk part is configured as the first fan and the second fan substantially: the bottom of described the first fan overlaps with described first passage, the bottom of described the second fan overlaps with described second channel, and approximate central axis location along described cylinder wall, the top that is positioned at central authorities of described the first fan and described the second fan.
13. according to chamber system claimed in claim 10, it is characterized in that, described fan shape is that shape and the described passage of the first fan is first passage; The sunk part of described piston head also comprises the shape of the second fan, and the bottom of this second fan overlaps with described second channel; And the top of the top of described the first fan and described the second fan is overlapping in the position at the center of pressing close to described piston.
14. according to the described chamber system of claim 13, it is characterized in that, described sunk part has the spine with the approximate equidistant placement of two described spargers.
15. according to chamber system claimed in claim 10, it is characterized in that, described convex portion has the first ridge and the second ridge that extends inward in the described sunk part, and the line on part institute edge in most sensing of described ridge is approximately perpendicular to the line at the tip of the tip that connects described the first sparger and described the second sparger.
16. according to chamber system claimed in claim 1, it is characterized in that, described convex portion is a male member of sphere.
17. an internal-combustion engine comprises:
Cylinder wall;
Can be in described cylinder wall reciprocating air inlet piston;
Can be in described cylinder wall reciprocating exhaust pition, the piston head of this exhaust pition is towards the piston head of described air inlet piston; And
At least one fuel injector, this at least one fuel injector passes described cylinder wall and is mounted, when described air inlet piston and described exhaust pition during in their hithermost positions, the gap between described air inlet piston and the described exhaust pition is pressed close at the tip of described fuel injector
The piston head of wherein said exhaust pition has convex portion and sunk part, it is characterized in that, described sunk part forms at least one fan-shaped part.
18. according to the described internal-combustion engine of claim 17, it is characterized in that, described motor has and passes approximate two spargers relatively installing along diameter of described cylinder wall, i.e. the first sparger and the second sparger; And described sunk part forms the first fan-shaped part and the second fan-shaped part, and described the first sparger is pointed in the bottom of described the first fan-shaped part, and described the second sparger is pointed in the bottom of described the second fan-shaped part.
19. according to the described internal-combustion engine of claim 17, it is characterized in that, at least one fan-shaped part has the bottom of the periphery that extends to described piston, and is positioned at substantially the center of described piston from the top of the extended fan-shaped part in described bottom.
20. according to the described internal-combustion engine of claim 18, it is characterized in that, described convex portion has two ridges that inwardly extend towards the center of described piston, and the line that connects two ridges is substantially perpendicular to the line at the tip of the tip that connects described the first sparger and described the second sparger.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/351,863 | 2012-01-17 | ||
| US13/351,863 US20120192831A1 (en) | 2011-01-27 | 2012-01-17 | Combustion Chamber for a Side-Mounted Direction Injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883094U true CN202883094U (en) | 2013-04-17 |
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ID=48083770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202929555U Expired - Fee Related CN202883094U (en) | 2012-01-17 | 2012-06-18 | Combustion chamber and combustion chamber system and internal combustion engine of direct ejector used for side installation |
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| Country | Link |
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| CN (1) | CN202883094U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422258A (en) * | 2015-12-14 | 2016-03-23 | 中国北方发动机研究所(天津) | Double T-shaped combustion chamber applicable to opposed injection |
| CN105422257A (en) * | 2015-12-14 | 2016-03-23 | 中国北方发动机研究所(天津) | Double w-shaped combustion chamber applicable to opposed injection |
| CN106715866A (en) * | 2014-09-29 | 2017-05-24 | 沃尔沃卡车集团 | Opposed piston engine with pistons having conical recesses therein |
| CN107636277A (en) * | 2015-03-31 | 2018-01-26 | 阿凯提兹动力公司 | Combustion chamber for the asymmetrical shape of opposed-piston engine |
-
2012
- 2012-06-18 CN CN2012202929555U patent/CN202883094U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106715866A (en) * | 2014-09-29 | 2017-05-24 | 沃尔沃卡车集团 | Opposed piston engine with pistons having conical recesses therein |
| CN106715866B (en) * | 2014-09-29 | 2019-06-21 | 沃尔沃卡车集团 | Piston opposed engine including the piston wherein with tapered recess |
| CN107636277A (en) * | 2015-03-31 | 2018-01-26 | 阿凯提兹动力公司 | Combustion chamber for the asymmetrical shape of opposed-piston engine |
| CN105422258A (en) * | 2015-12-14 | 2016-03-23 | 中国北方发动机研究所(天津) | Double T-shaped combustion chamber applicable to opposed injection |
| CN105422257A (en) * | 2015-12-14 | 2016-03-23 | 中国北方发动机研究所(天津) | Double w-shaped combustion chamber applicable to opposed injection |
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Address after: michigan Patentee after: Ai Kemote company Address before: michigan Patentee before: Ecomotors Inc. |
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Granted publication date: 20130417 Termination date: 20170618 |