CN108286477A - Cylinder cover for direct injection gasoline engine - Google Patents
Cylinder cover for direct injection gasoline engine Download PDFInfo
- Publication number
- CN108286477A CN108286477A CN201810095527.5A CN201810095527A CN108286477A CN 108286477 A CN108286477 A CN 108286477A CN 201810095527 A CN201810095527 A CN 201810095527A CN 108286477 A CN108286477 A CN 108286477A
- Authority
- CN
- China
- Prior art keywords
- air intake
- intake duct
- combustion chamber
- mounting hole
- cylinder
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/242—Arrangement of spark plugs or injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of cylinder cover for direct injection gasoline engine, including cylinder cap ontology, it is arranged in the intrinsic combustion chamber of the cylinder cap and installs the mounting hole of oil sprayer of from the fuel injector of oil spout to the combustion chamber, the mounting hole of oil sprayer is arranged on the cylinder cap ontology close to top position, the both sides of each mounting hole of oil sprayer are equipped with the air intake duct of the air inlet into the corresponding combustion chamber, and the air intake duct of each mounting hole of oil sprayer both sides is in the opposite curved shape for getting around the mounting hole of oil sprayer at the corresponding mounting hole of oil sprayer.In the cylinder cover for direct injection gasoline engine of the present invention, air intake duct uses left and right sides separate type air passage structure in single combustion chamber, fuel injector can effectively be avoided, it can be in separate type air flue intermediate arrangement high position fuel injector, combustion chamber placement can be made more compact, to reach the arrangement requirement for meeting high-order fuel injector, compression ratio is promoted, and then optimize engine power performance, fuel economy.
Description
Technical field
The present invention relates to technical field of automobile engine, in particular to a kind of cylinder cover for direct injection gasoline engine.
Background technology
The fuel injector high position arrangement of petrol engine can effectively reduce engine combustion chamber volume, improve compression ratio, from
And engine power performance, economy are further promoted, more and more engine fuel injectors are using the high-order form arranged.With this
Meanwhile in the direct-injection petrol engine of high-order arrangement fuel injector, higher position is arranged in cylinder head in mounting hole of oil sprayer
On, to meet the development trend of miniaturization, the installation site of fuel injector is easy between the position of the enterprising air flue of cylinder head mutually
The problem of influencing, fuel injector will be brought to interfere with air intake duct.
In addition, tumble flow is a kind of its rotary shaft large scale air movement form in the cylinder of cylinder-bore axis, compressing
Stroke anaphase transition is turbulent flow.Tumble flow in cylinder air-fuel mixture and turbulent flow can have active influence, tumble flow is stronger, when igniting
Turbulent flow can be stronger in the cylinder at quarter, and burning velocity is faster.Tumble and swirl is burning indoor gas slewing rate and hair in the horizontal direction
The ratio of the rotating speed of motivation；Increase Tumble and swirl in a certain range, gas rolling can be reinforced, so that gasoline is mixed with air and more fill
Point.Therefore, high Tumble and swirl can improve in-cylinder combustion, improve engine power performance, economy.The quality of cylinder head Design of Inlet
Engine combustion efficiency is directly affected, traditional direct-injection petrol engine air intake duct causes air inlet to roll due to the structure design of itself
Than Shortcomings, gasoline combustion is not enough stream, bad so as to cause dynamic property, the economy of engine, and can bring discharge
Seriously polluted problem.
Invention content
It is an object of the present invention to overcome the deficiencies of the prior art and provide a kind of direct-injection gasoline hair of high-order fuel injector
Motivation cylinder head can avoid the interference between the installation site of fuel injector and air intake duct.
To achieve the above object, the cylinder cover for direct injection gasoline engine designed by the present invention includes cylinder cap ontology, setting
In the intrinsic combustion chamber of the cylinder cap and the mounting hole of oil sprayer of from the fuel injector of oil spout to the combustion chamber, the spray be installed
Oily device mounting hole is arranged on the cylinder cap ontology close to top position, and the both sides of each mounting hole of oil sprayer are equipped with to right
The air intake duct of air inlet in the combustion chamber answered, the air intake duct of each mounting hole of oil sprayer both sides is corresponding described
In the opposite curved shape for getting around the mounting hole of oil sprayer at mounting hole of oil sprayer.
Preferably, each air intake duct includes being separately positioned on corresponding described mounting hole of oil sprayer or so two
The arrival end of the left air intake duct and right air intake duct of side, the left air intake duct and the corresponding right air intake duct is in the horizontal direction simultaneously
Row's setting, the outlet end of the left air intake duct and the corresponding right air intake duct are arranged side by side in the horizontal direction, it is described it is left into
The stage casing of air flue and the corresponding right air intake duct is in the opposite arc for getting around the corresponding mounting hole of oil sprayer.
Preferably, the left air intake duct of each air intake duct and the right air intake duct are to pass through corresponding institute
The perpendicular for stating the axis of mounting hole of oil sprayer is the symmetrical distribution of the plane of symmetry.
Preferably, the air intake duct lower wall of each air intake duct in the center of circle above, radius be 180mm~
The arc of 200mm.
Preferably, the angle on each combustion chamber between the top and horizontal plane of exhaust combustion chamber side
It is 18 °~20 °.
Preferably, the air intake port of each air intake duct close to combustion chamber charge side inner wall with connect
It is vertical between the air intake duct lower wall.
Preferably, the first cylinder combustion chamber, the second cylinder combustion chamber and the combustion of third cylinder are provided in the cylinder cap ontology
Burn room, the cylinder cap ontology is equipped with into first cylinder combustion chamber the first mounting hole of oil sprayer of oiling, to described second
In cylinder combustion chamber the second mounting hole of oil sprayer of oiling and into the third cylinder combustion chamber oiling third mounting hole of oil sprayer.
The beneficial effects of the invention are as follows：In the cylinder cover for direct injection gasoline engine of the present invention, air inlet in single combustion chamber
Road uses left and right sides separate type air passage structure, can effectively avoid fuel injector, can be sprayed in a separate type air flue intermediate arrangement high position
Oily device can make combustion chamber placement more compact, to reach the arrangement requirement for meeting high-order fuel injector, promote compression ratio, Jin Eryou
Change engine power performance, fuel economy.
Description of the drawings
Fig. 1 is the overlooking structure diagram using the cylinder cover for direct injection gasoline engine of the preferred embodiment of the present invention.
Fig. 2 is the main structure diagram of an air intake duct of the cylinder cover for direct injection gasoline engine in Fig. 1.
Fig. 3 is the main structure diagram of three air intake ducts of cylinder cover for direct injection gasoline engine in Fig. 1.
Fig. 4 is the side structure schematic view of the air intake duct of the cylinder cover for direct injection gasoline engine in Fig. 2.
Fig. 5 is the enlarged structure schematic diagram of the parts I in Fig. 4.
Each part numbers are as follows in figure：Cylinder cap 10 (wherein, cylinder cap ontology 11, mounting hole of oil sprayer 12, combustion chamber 13, into
Air flue 14, left air intake duct 141, right air intake duct 142；Combustion chamber charge side 131, combustion exhaust side 132)；Fuel injector 20 is (wherein,
Injector 21)；
First mounting hole of oil sprayer 12a, the second mounting hole of oil sprayer 12b, third mounting hole of oil sprayer 12c；First cylinder fires
Burn room 13a, the second cylinder combustion chamber 13b, third cylinder combustion chamber 13c；First cylinder air intake duct 14a, the second cylinder air intake duct 14b, third
Cylinder air intake duct 14c；
The left air intake duct 141a of first cylinder, the left air intake duct 141b of the second cylinder, the left air intake duct 141c of third cylinder；The right air inlet of first cylinder
The right air intake duct 142b of road 142a, the second cylinder, the right air intake duct 142c of third cylinder；Air intake duct lower wall 1411, air intake port 1412.
Specific implementation mode
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is please referred to, top position is leaned on the cylinder cap ontology 11 of cylinder cover for direct injection gasoline engine 10 of the invention
The place of setting is provided with mounting hole of oil sprayer corresponding with combustion chamber 13 12.In diagram embodiment, there are three combustion chambers for tool on cylinder cap 10
13 --- the first cylinder combustion chamber 13a, the second cylinder combustion chamber 13b, third cylinder combustion chamber 13c.Accordingly, the cylinder cap ontology of cylinder cap 10
11 tops are provided with mounting hole of oil sprayer corresponding with combustion chamber 13 12.In diagram embodiment, set on cylinder cap ontology 11 there are three
Mounting hole of oil sprayer 12 --- the first mounting hole of oil sprayer 12a, the second mounting hole of oil sprayer 12b, third mounting hole of oil sprayer
12c.First mounting hole of oil sprayer 12a, the second mounting hole of oil sprayer 12b, third mounting hole of oil sprayer 12c are separately installed with first
Fuel injector, the second fuel injector, third fuel injector, with the first cylinder combustion chamber 13a, the second cylinder combustion chamber 13b, third cylinder combustion chamber
13c is corresponded to, respectively the injected petrol into the first cylinder combustion chamber 13a, the second cylinder combustion chamber 13b, third cylinder combustion chamber 13c.
Please refer to Fig. 2, the both sides of each mounting hole of oil sprayer 12 be equipped with into corresponding combustion chamber 13 air inlet into
The air intake duct 14 of air flue 14,12 both sides of each mounting hole of oil sprayer is pacified at corresponding mounting hole of oil sprayer 12 in bypass fuel injector
Fill the opposite arc (as shown in Figure 2) in hole 12.More specifically, each air intake duct 14 includes being separately positioned on corresponding fuel injector
The left air intake duct 141 and right air intake duct 142 of 12 left and right sides of mounting hole, left air intake duct 141 and corresponding right air intake duct 142 enter
Mouthful end is arranged side by side in the horizontal direction, and the outlet end of left air intake duct 141 and corresponding right air intake duct 142 is in the horizontal direction simultaneously
Row's setting, the stage casing of left air intake duct 141 and corresponding right air intake duct 142 is in the corresponding mounting hole of oil sprayer of opposite bypass 12
Arc.The left air intake duct 141 and right air intake duct 142 of each air intake duct 14 are with by the axis of corresponding mounting hole of oil sprayer 12
Perpendicular is the symmetrical distribution of the plane of symmetry.
Detailed construction is referring to Fig. 3, for installing the first fuel injector, the first fuel injector on the first mounting hole of oil sprayer 12a
Mounting hole 12a's is respectively arranged on the left side and the right side the left air intake duct 141a of the first cylinder, the right air intake duct 141a of the first cylinder, respectively from two sides to
Air is conveyed in first cylinder combustion chamber 13a；For installing the second fuel injector, the second fuel injector on second mounting hole of oil sprayer 12b
Mounting hole 12b's is respectively arranged on the left side and the right side the left air intake duct 142a of the second cylinder, the right air intake duct 142a of the second cylinder, respectively from two sides to
Air is conveyed in second cylinder combustion chamber 13b；For installing third fuel injector, third fuel injector on third mounting hole of oil sprayer 12c
Mounting hole 12c's is respectively arranged on the left side and the right side the left air intake duct 143a of third cylinder, the right air intake duct 143a of third cylinder, respectively from two sides to
Air is conveyed in first cylinder combustion chamber 13c.
Please refer to Fig. 4 and Fig. 5, each air intake duct 14, in figure by taking left air intake duct 141 as an example, air intake duct lower wall 1411
In the center of circle above, radius R be 180mm~200mm arc, formed inlet channel.The machine of air intake port 1412 adds face to lean on
It is vertical (i.e. close to combustion chamber charge side between one end and air intake duct wall (air intake duct lower wall 1411) of nearly combustion chamber charge side 131
It is vertical between the inner wall of 131 air intake port 1412 and the air intake duct lower wall 1411 to connect), close to combustion chamber on combustion chamber 13
Angle α (combustion chamber angle α) between the top and horizontal plane of exhaust side 131 keeps gas more as possible between 18 °~20 °
Oriented combustion chamber exhaust side 132 forms tumble flow in cylinder, Tumble intensity is improved, to improve Tumble and swirl.That is, air intake duct lower wall
1411 is vertical with air intake port 1412 at air intake port 1412, forms air guide barrier, is entered by left air intake duct 141 and is fired
The gas in room 13 is burnt, fraction is flowed into the air bullet of combustion chamber charge side 131 to exhaust combustion chamber side 132.So design
It is to make from the oriented combustion chamber exhaust more as possible of the gas for the combustion chamber 13 that air intake duct 14 enters for the considerations of being oriented to gas
Side 132 forms tumble flow (as shown in solid arrow in Fig. 4) in cylinder, Tumble intensity is improved whereby, to improve Tumble and swirl.
Similarly, the structure of right air intake duct 142 is similar with left air intake duct 141, only to be installed by corresponding fuel injector
The perpendicular of the axis in hole 12 is the symmetrical distribution of the plane of symmetry, and this will not be repeated here.
The operation principle of the cylinder cover for direct injection gasoline engine of the present invention is as follows：When engine works, air is by dividing
Not by the first cylinder air intake duct 14a, the second cylinder air intake duct 14b, third cylinder air intake duct 14c enter corresponding first combustion chamber 13a,
In second combustion chamber 13b, third combustion chamber 13c.Injector of the gasoline by fuel injector 20 from close combustion chamber charge side 131
21 enter in corresponding combustion chamber 13.In each combustion chamber 13, left air intake duct 141 of the air from 20 both sides of fuel injector, right air inlet
Road 142 is entered in a manner of separation, and is converged at air intake port.In each air intake duct 14, radius R be 180mm~
The guide frame of the air intake duct lower wall of 200mm and structure compared with small combustion chamber angle α, by most air all laterally steerings
Fraction is flowed to the sky of combustion chamber charge side 141 by the air guide barrier perpendicular to air intake port by exhaust combustion chamber side 142
Gas bullet is to exhaust combustion chamber side 142, and shock Combustor wall rebounds to form tumble flow (see Fig. 4 after air laterally flows to exhaust side
In solid arrow shown in), from injector 21 come out gasoline oil beam involve in tumble flow air (shown in the dotted arrow in Fig. 4)
In, the uniform mixing of gasoline and air can be promoted, to promote fire stroke, also improve engine power performance, economy.By
Experiment, use the Tumble and swirl test value of the engine of the cylinder cover for direct injection gasoline engine in diagram embodiment be 2.0, compare
The Tumble and swirl measured value of certain engine of cylinder cover for direct injection gasoline engine not using the present invention is only 0.7, it is known that this
The cylinder cover for direct injection gasoline engine of invention is greatly improved Tumble and swirl.
Shown in sum up, compared to the prior art, cylinder cover for direct injection gasoline engine of the invention mainly has following excellent
Point：
(1) in cylinder cover for direct injection gasoline engine of the invention, air intake duct uses separate type air flue in single combustion chamber
Structure can effectively avoid fuel injector, combustion chamber placement can be made tighter in separate type air flue intermediate arrangement high position fuel injector
It gathers, to reach the arrangement requirement for meeting high-order fuel injector, promotes compression ratio, and then optimize engine power performance, fuel-economy
Property.
(2) inlet structure using high Tumble and swirl of directly jetting gasoline engine cylinder head of the invention improves air intake duct tumble flow
Intensity, to improve the efficiency of combustion of engine, improve engine power performance, to promote engine power performance, fuel-economy
Property and exhaust emission.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of cylinder cover for direct injection gasoline engine (10), the cylinder head (10) includes cylinder cap ontology (11), is arranged in institute
It states the combustion chamber (13) in cylinder cap ontology (11) and the fuel injector of the fuel injector (20) to the combustion chamber (13) interior oil spout is installed
Mounting hole (12), it is characterised in that：The mounting hole of oil sprayer (12) is arranged on the cylinder cap ontology (11) close to top position
It sets, the both sides of each mounting hole of oil sprayer (12) are equipped with the air intake duct of the air inlet into the corresponding combustion chamber (13)
(14), the air intake duct (14) of each mounting hole of oil sprayer (12) both sides is in the corresponding mounting hole of oil sprayer (12)
Place is in the opposite curved shape for getting around the mounting hole of oil sprayer (12).
2. cylinder cover for direct injection gasoline engine according to claim 1, it is characterised in that：Each air intake duct (14)
Including the left air intake duct (141) being separately positioned at left and right sides of the corresponding mounting hole of oil sprayer (12) and right air intake duct
(142), the arrival end of the left air intake duct (141) and the corresponding right air intake duct (142) is arranged side by side in the horizontal direction,
The outlet end of the left air intake duct (141) and the corresponding right air intake duct (142) is arranged side by side in the horizontal direction, the left side
The stage casing of air intake duct (141) and the corresponding right air intake duct (142) is in the opposite corresponding mounting hole of oil sprayer of bypass
(12) arc.
3. cylinder cover for direct injection gasoline engine according to claim 1, it is characterised in that：Each air intake duct (14)
The left air intake duct (141) and the right air intake duct (142) with by the corresponding mounting hole of oil sprayer (12) axis
Perpendicular be the symmetrical distribution of the plane of symmetry.
4. cylinder cover for direct injection gasoline engine according to any one of claim 1 to 3, it is characterised in that：Each institute
State the air intake duct lower wall of air intake duct (14) in the center of circle above, the arc that radius (R) is 180mm~200mm.
5. cylinder cover for direct injection gasoline engine according to claim 4, it is characterised in that：Each combustion chamber (13)
The upper angle (α) between the top and horizontal plane of exhaust combustion chamber side (131) is 18 °~20 °.
6. cylinder cover for direct injection gasoline engine according to claim 5, it is characterised in that：Each air intake duct (14)
Air intake port it is vertical between the inner wall and the air intake duct lower wall to connect of combustion chamber charge side (131).
7. cylinder cover for direct injection gasoline engine according to claim 6, it is characterised in that：In the cylinder cap ontology (11)
It is provided with the first cylinder combustion chamber (13a), the second cylinder combustion chamber (13b) and third cylinder combustion chamber (13c), the cylinder cap ontology (11)
It is equipped with the first mounting hole of oil sprayer (12a) to first cylinder combustion chamber (13a) interior oiling, to second cylinder combustion chamber
Second mounting hole of oil sprayer (12b) of (13b) interior oiling and third fuel injector to third cylinder combustion chamber (13c) interior oiling
Mounting hole (12c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095527.5A CN108286477A (en) | 2018-01-31 | 2018-01-31 | Cylinder cover for direct injection gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095527.5A CN108286477A (en) | 2018-01-31 | 2018-01-31 | Cylinder cover for direct injection gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108286477A true CN108286477A (en) | 2018-07-17 |
Family
ID=62836077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810095527.5A Pending CN108286477A (en) | 2018-01-31 | 2018-01-31 | Cylinder cover for direct injection gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108286477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196706A (en) * | 2019-07-08 | 2021-01-08 | 上汽通用汽车有限公司 | Engine air intake system and engine system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6173693B1 (en) * | 1998-04-21 | 2001-01-16 | Ford Global Technologies, Inc. | Cylinder head |
| CN201546830U (en) * | 2009-10-27 | 2010-08-11 | 重庆长安汽车股份有限公司 | Gasoline engine airway |
| CN201588702U (en) * | 2009-12-16 | 2010-09-22 | 浙江吉利汽车研究院有限公司 | Air duct of automobile engine |
| CN106574547A (en) * | 2014-08-18 | 2017-04-19 | 丰田自动车株式会社 | Internal combustion engine |
-
2018
- 2018-01-31 CN CN201810095527.5A patent/CN108286477A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6173693B1 (en) * | 1998-04-21 | 2001-01-16 | Ford Global Technologies, Inc. | Cylinder head |
| CN201546830U (en) * | 2009-10-27 | 2010-08-11 | 重庆长安汽车股份有限公司 | Gasoline engine airway |
| CN201588702U (en) * | 2009-12-16 | 2010-09-22 | 浙江吉利汽车研究院有限公司 | Air duct of automobile engine |
| CN106574547A (en) * | 2014-08-18 | 2017-04-19 | 丰田自动车株式会社 | Internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196706A (en) * | 2019-07-08 | 2021-01-08 | 上汽通用汽车有限公司 | Engine air intake system and engine system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103696847A (en) | In-cylinder direct injection engine combustion chamber | |
| CN109026365B (en) | Triangle rotor engine easy to ignite | |
| CN108049982A (en) | Automobile, combustion system of engine and its cylinder head | |
| CN105179111A (en) | Gas/dual-fuel engine intake manifold gas injection device | |
| CN110953067B (en) | Engine and double-jet combustion method thereof | |
| CN207437238U (en) | A kind of high Tumble and swirl inlet structure | |
| CN108286477A (en) | Cylinder cover for direct injection gasoline engine | |
| CN205955853U (en) | Directly spout vortex top land combustion chamber | |
| CN204140220U (en) | The piston of layering lean-combustion engine and motor and vehicle | |
| CN105937462A (en) | Direct injection vortex piston top combustion chamber | |
| CN114294676B (en) | Pre-combustion chamber structure with wide ignition boundary | |
| CN202946255U (en) | Cylinder end air passage structure | |
| CN203856595U (en) | Cylinder cover for engine and engine with cylinder cover | |
| JPS598644B2 (en) | Secondary combustion chamber of internal combustion engine | |
| CN210396913U (en) | Gas engine and gas multi-point injection structure with lengthened mixing path thereof | |
| CN202832821U (en) | Four-valve gas engine | |
| CN113982740B (en) | Pre-combustion chamber for engine combustion system, combustion system and working method | |
| CN201835908U (en) | Internal combustion engine | |
| CN220869534U (en) | Hydrogen nozzle assembly, hydrogen combustion chamber, hydrogen engine and vehicle | |
| CN219711689U (en) | Natural gas engine mixer | |
| CN209621460U (en) | A kind of chamber structure | |
| JPH05106452A (en) | Intake system and intake air feeding method of engine | |
| CN213063795U (en) | Air inlet extension pipe of engine piston cylinder and two-stroke engine using same | |
| CN102367755B (en) | Air-intake tumble flow generation device equipped with EGR (exhaust gas recirculation) for gasoline engine | |
| JP5865603B2 (en) | In-cylinder injection engine and fuel injection method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180717 |
|
| RJ01 | Rejection of invention patent application after publication |