CN108457765B - Air inlet channel of gas engine - Google Patents
Air inlet channel of gas engine Download PDFInfo
- Publication number
- CN108457765B CN108457765B CN201810123160.3A CN201810123160A CN108457765B CN 108457765 B CN108457765 B CN 108457765B CN 201810123160 A CN201810123160 A CN 201810123160A CN 108457765 B CN108457765 B CN 108457765B
- Authority
- CN
- China
- Prior art keywords
- air inlet
- air
- cylinder
- inlet channel
- inlet pipe
- 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.)
- Active
Links
Images
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
- F02F1/42—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
Abstract
The invention discloses a gas engine inlet channel, which comprises: the air inlet pipe and the first to sixth series double air inlet channels. An air inlet pipe for receiving the clean air filtered by the air filter; one ends of the first to sixth series double air inlet channels are respectively communicated with the air inlet pipe, the other ends of the first to sixth series double air inlet channels are respectively communicated with the first to sixth cylinders, and the other ends of the first to sixth series double air inlet channels are respectively provided with first to sixth near-end air inlet channels and first to sixth far-end air inlet channels; wherein the first to fourth distal air inlets are helical air inlets; the fifth far-end air inlet channel is a tangential air channel; wherein, the sixth near-end air inlet channel is locally narrowed, and an inlet of the sixth near-end air inlet channel is narrowed. Therefore, the gas inlet channel of the gas engine can ensure the uniformity of each cylinder and ensure the sufficient and stable combustion while ensuring the air input of each cylinder.
Description
Technical Field
The invention relates to the field of internal combustion engines, in particular to a gas engine air inlet channel.
Background
It is known that an air inlet passage of a gas engine is one of important components of a combustion system design and a cylinder cover overall structure design, and good charging efficiency and air motion state play a key role in combustion in a cylinder. Meanwhile, the reasonable air inlet channel style is also beneficial to the arrangement and design of the overall structure of the cylinder cover, the performance and the emission of the whole gas engine are ensured, the cooling of the cylinder cover is improved, and the reliability is improved. The existing four-valve gas engine valve usually adopts series arrangement or torsion arrangement, the air inlet channel usually is a series air channel or a semi-parallel air channel, one of which is a spiral air channel, and the other is a tangential air channel or a double-spiral air inlet channel; the air inlet channels adopting the air passage arrangement form are connected air passages, the connected air inlet channels with the same number as the cylinders are arranged in each cylinder cover, the space is arranged for meeting the air passages and the cooling water jacket, and meanwhile, the cylinder cover adopting the existing air inlet channels usually adopts an embedded spark plug sheath to realize the installation of a spark plug and seal a cylinder cover water cavity on the premise of considering casting manufacturability. Meanwhile, in order to improve compatibility, the air inlet channel can be integrated with an air inlet pipe structure, sealing interfaces are reduced, air inlet consistency is guaranteed, and use reliability is improved.
The gas engine intake duct is arranged and is related to in-cylinder vortex intensity and flow coefficient, influences the cooling channel in cylinder cap bridge of the nose district simultaneously and arranges that there is following problem in current gas engine intake duct arrangement:
1. two air inlet channels of the series or semi-parallel air inlet channel have mutual interference in the air inlet process of the engine, and under the condition of different valve lifts, the airflow of the near-end valve is relatively disordered, so that the uniformity of the swirl ratio of each cylinder is influenced;
2. in order to meet the arrangement space of the air passage and the cooling water jacket and simultaneously take casting manufacturability into consideration, the cylinder cover adopting the existing air inlet passage usually adopts an embedded spark plug jacket to realize the installation of a spark plug and seal a cylinder cover water cavity, but the installation of the spark plug jacket needs special tool equipment to guarantee, the process is more complicated, and the cost of the cylinder cover is increased;
3. along with the upgrading of the discharge and the power improvement of the gas engine, the explosion pressure in the cylinder is continuously improved, the structural strength of the fire surface of the cylinder cover embedded with the spark plug sheath is low, and the potential risks of large deformation of the cylinder cover, sealing failure of a gasket of the cylinder cover, water leakage of the spark plug sheath and the like exist;
4. the air inlet pipe has different structures due to the fact that the whole engine needs to be matched with the whole engine, the structure of an air passage in the air inlet pipe can directly influence the vortex ratio of each cylinder, the same cylinder cover is matched with different air inlet pipes, different vortex ratios of each cylinder finally occur, and the combustion uniformity of each cylinder is seriously influenced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a gas engine air inlet channel, so as to overcome the defect that the flow coefficient and the swirl ratio of the existing gas engine air inlet channel are difficult to meet the requirements of the performance and the emission of an engine.
To achieve the above object, the present invention provides a gas engine inlet, comprising: the air inlet pipe and the first to sixth series double air inlet channels. The air inlet pipe is used for receiving clean air filtered by the air filter; one ends of the first to sixth series double air inlet channels are respectively communicated with the air inlet pipe, the other ends of the first to sixth series double air inlet channels are respectively communicated with the first to sixth cylinders, and the other ends of the first to sixth series double air inlet channels are respectively provided with first to sixth near-end air inlet channels and first to sixth far-end air inlet channels; wherein the first to fourth distal air inlets are helical air inlets; the fifth far-end air inlet channel is a tangential air channel; wherein, the sixth near-end air inlet channel is locally narrowed, and an inlet of the sixth near-end air inlet channel is narrowed.
Preferably, in the above technical solution, the gas engine inlet further includes: and the first exhaust passage to the sixth exhaust passage are respectively communicated with the first cylinder to the sixth cylinder, and the first exhaust passage to the sixth exhaust passage and the first series double inlet passage to the sixth series double inlet passage are arranged in parallel around the spark plug seat.
Preferably, in the above technical solution, the intake pipe is integrated on the cylinder head.
Preferably, in the above technical scheme, the first to sixth series double intake ducts and the inner cavity of the intake duct are of an integrated structure.
Preferably, in the above technical scheme, the first to sixth series double intake ducts all have a yielding platform for installation of the valve guide.
Compared with the prior art, the invention has the following beneficial effects: the gas inlet channel of the gas engine can ensure the uniformity of each cylinder and ensure the sufficient and stable combustion while ensuring the air input of each cylinder.
Drawings
Fig. 1 is a front view of a gas engine inlet according to the present invention.
Description of the main reference numerals:
1-air inlet pipe, 11-inner cavity, 2-first series double air inlet channel, 21-first far-end air inlet channel, 22-first near-end air inlet channel, 3-second series double air inlet channel, 31-second far-end air inlet channel, 32-second near-end air inlet channel, 4-third series double air inlet channel, 41-third far-end air inlet channel, 42-third near-end air inlet channel, 5-fourth series double air inlet channel, 51-fourth far-end air inlet channel, 52-fourth near-end air inlet channel, 6-fifth series double air inlet channel, 61-fifth far-end air inlet channel, 62-fifth near-end air inlet channel, 7-sixth series double air inlet channel, 71-sixth far-end air inlet channel and 72-sixth near-end air inlet channel.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1, fig. 1 is a schematic front view of a gas engine inlet according to the present invention, and a gas engine inlet according to an embodiment of the present invention includes: the air inlet pipe 1 and the first series double air inlet channel 2, the second series double air inlet channel 3, the third series double air inlet channel 4, the fourth series double air inlet channel 5, the fifth series double air inlet channel 6 and the sixth series double air inlet channel 7. The air inlet pipe 1 is used for receiving clean air filtered by an air filter; one end of each of the first to sixth series double inlet channels 2 to 7 is communicated with the air inlet pipe 1, and the other end is communicated with the first to sixth cylinders, respectively, and the other end of each of the first to sixth series double inlet channels 2 to 7 is provided with a first near-end inlet channel 22, a second near-end inlet channel 32, a third near-end inlet channel 42, a fourth near-end inlet channel 52, a fifth near-end inlet channel 62, a sixth near-end inlet channel 72, and a first to sixth far-end inlet channel 21 to 71, respectively; wherein the first to fourth distal air-intake passages 21 to 51 are helical air-intake passages; the fifth far-end air inlet 61 is a tangential air passage; wherein the sixth proximal air inlet channel 72 is locally narrowed and the inlet of the sixth proximal air inlet channel 72 is narrowed.
Preferably, the gas engine inlet further comprises: and the first exhaust passage to the sixth exhaust passage are respectively communicated with the first cylinder to the sixth cylinder, and are arranged in parallel with the first series double inlet passage 2 to the sixth series double inlet passage 7 around the spark plug seat.
Preferably, the intake pipe 1 is integrated on the cylinder head; the first to sixth series double air inlet channels 2 to 7 and the inner cavity 11 of the air inlet pipe 1 are of an integrated structure; the first series double air inlet channel 2 to the sixth series double air inlet channel 7 are provided with abdicating platforms which are used for installing valve guide pipes.
In practical application, the intake duct, the exhaust passage is around spark plug seat parallel arrangement all around (first series connection two intake ducts 2 to sixth series connection two intake ducts 7 and first exhaust passage to sixth exhaust passage are around spark plug seat parallel arrangement all around), every cylinder all has an intake duct, divide distal end intake duct and near-end intake duct, the same main intake duct of every cylinder, divide two valves to get into the cylinder, distal end intake duct and near-end intake duct all have one to step down the platform for the valve guide installation, the entry of intake duct and the inner chamber 11 of intake pipe 1 fuse into an organic whole.
When the gas engine works, clean air filtered by the air filter enters the inner cavity 11 of the air inlet pipe 1 after being compressed by the supercharger, and then enters a combustion chamber of each cylinder through the first series double air inlet passage 2 to the fourth series double air inlet passage 5 connected in series with the single cylinder of the first cylinder to the fourth cylinder, the fifth series double air inlet passage 6 connected in series with the single cylinder of the fifth cylinder and the sixth series double air inlet passage 7 connected in series with the single cylinder of the sixth cylinder. Wherein according to the mounted position of the air intake connecting pipe, with first far-end intake duct 21 among the first series connection double intake duct 2 to the fourth series connection double intake duct 5 of first cylinder to fourth cylinder, second far-end intake duct 31, third far-end intake duct 41 and fourth far-end intake duct 51 increase helical structure (spiral intake duct), can effectively improve the rotation speed of air around the cylinder center, set the fifth far-end intake duct 61 of the fifth series connection double intake duct 6 of fifth cylinder into tangential air flue, can improve the air current rotation in the cylinder, narrow near the sixth near-end intake duct 72 of the sixth series connection double intake duct of sixth cylinder, narrow the entry structure simultaneously, so reduce this cylinder vortex forming speed, so when guaranteeing each cylinder air input, guarantee each cylinder homogeneity, guarantee the burning is abundant, steady.
In summary, the gas engine inlet duct of the present invention has the following beneficial effects:
1. according to the inlet position of the air inlet connecting pipe, air passages of all cylinders are adjusted, the first series double air inlet passage 2 to the fourth series double air inlet passage have the same structure, the fifth series double air inlet passage of the fifth cylinder is independent, and the sixth series double air inlet passage of the sixth cylinder is independent, so that the influence caused by uneven air flow of the air inlet of each cylinder due to the fact that the air inlet structure is not ideal due to arrangement of the whole machine can be compensated;
2. the far-end air inlet channel and the near-end air inlet channel are distinguished, the spiral structure of the far-end air inlet channel is strengthened under the condition that the vortex needs to be strengthened, the air inlet of the near-end air inlet channel is weakened, and therefore the better vortex is formed in the cylinder under the condition that different valve lifts are guaranteed, and sufficient combustion is guaranteed.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (3)
1. A gas engine inlet, comprising:
an air inlet pipe for receiving clean air filtered by the air filter; and
the air inlet pipe is communicated with the air inlet pipe, the other end of the air inlet pipe is communicated with the first cylinder to the sixth cylinder, and the other end of the air inlet pipe is provided with a first near-end air inlet pipe, a second near-end air inlet pipe, a first far-end air inlet pipe and a second far-end air inlet pipe;
wherein the first to fourth distal air inlets are helical air inlets;
wherein the fifth distal inlet is a tangential airway;
the sixth near-end air inlet channel is locally narrowed, and an inlet of the sixth near-end air inlet channel is narrowed;
the air inlet pipe is integrated on the cylinder cover;
the first series double inlet channel to the sixth series double inlet channel and the inner cavity of the inlet pipe are of an integrated structure.
2. The gas engine inlet of claim 1, further comprising:
and the first exhaust passage to the sixth exhaust passage are respectively communicated with the first cylinder to the sixth cylinder, and the first exhaust passage to the sixth exhaust passage and the first series double inlet passage to the sixth series double inlet passage are arranged in parallel around the spark plug seat.
3. The gas engine inlet of claim 1, wherein each of the first to sixth series of dual inlets has a relief platform for valve guide installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123160.3A CN108457765B (en) | 2018-02-07 | 2018-02-07 | Air inlet channel of gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123160.3A CN108457765B (en) | 2018-02-07 | 2018-02-07 | Air inlet channel of gas engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108457765A CN108457765A (en) | 2018-08-28 |
| CN108457765B true CN108457765B (en) | 2020-06-26 |
Family
ID=63238727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810123160.3A Active CN108457765B (en) | 2018-02-07 | 2018-02-07 | Air inlet channel of gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457765B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736961B (en) * | 2018-11-29 | 2020-07-28 | 潍柴动力股份有限公司 | Engine cylinder cover and connection structure of air inlet pipe and air flue thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995027577A1 (en) * | 1994-04-08 | 1995-10-19 | Audi Ag | Device for casting a cylinder head |
| CN201096026Y (en) * | 2007-11-12 | 2008-08-06 | 广西玉柴机器股份有限公司 | Diesel engine cylinder lid |
| KR20090127238A (en) * | 2008-06-06 | 2009-12-10 | 제너럴 일렉트릭 캄파니 | Intake channels for internal combustion engines |
| CN102733984A (en) * | 2012-06-13 | 2012-10-17 | 东风朝阳朝柴动力有限公司 | Frame structure integral air flue for multi-valve diesel engine |
| CN202611911U (en) * | 2012-03-28 | 2012-12-19 | 东风朝阳朝柴动力有限公司 | Four-valve serial connection type integral air inlet passage |
| EP2565415A1 (en) * | 2011-09-01 | 2013-03-06 | MAN Truck & Bus AG | Device for a combustion engine |
| CN104100423A (en) * | 2013-04-11 | 2014-10-15 | 广州汽车集团股份有限公司 | Air inlet manifold and automobile engine |
| CN207813764U (en) * | 2018-02-07 | 2018-09-04 | 广西玉柴机器股份有限公司 | Gas machine air intake duct |
-
2018
- 2018-02-07 CN CN201810123160.3A patent/CN108457765B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995027577A1 (en) * | 1994-04-08 | 1995-10-19 | Audi Ag | Device for casting a cylinder head |
| CN201096026Y (en) * | 2007-11-12 | 2008-08-06 | 广西玉柴机器股份有限公司 | Diesel engine cylinder lid |
| KR20090127238A (en) * | 2008-06-06 | 2009-12-10 | 제너럴 일렉트릭 캄파니 | Intake channels for internal combustion engines |
| EP2565415A1 (en) * | 2011-09-01 | 2013-03-06 | MAN Truck & Bus AG | Device for a combustion engine |
| CN202611911U (en) * | 2012-03-28 | 2012-12-19 | 东风朝阳朝柴动力有限公司 | Four-valve serial connection type integral air inlet passage |
| CN102733984A (en) * | 2012-06-13 | 2012-10-17 | 东风朝阳朝柴动力有限公司 | Frame structure integral air flue for multi-valve diesel engine |
| CN104100423A (en) * | 2013-04-11 | 2014-10-15 | 广州汽车集团股份有限公司 | Air inlet manifold and automobile engine |
| CN207813764U (en) * | 2018-02-07 | 2018-09-04 | 广西玉柴机器股份有限公司 | Gas machine air intake duct |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108457765A (en) | 2018-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101113703B (en) | Intake manifold assembly | |
| CN110284990B (en) | Cylinder head cooling water jacket and engine | |
| ATE148200T1 (en) | EXHAUST SYSTEM FOR A CHARGED INTERNAL COMBUSTION ENGINE | |
| CN104018961B (en) | The air inlet pipeline system of a kind of engine with supercharger and air inlet bypass valve | |
| CN108457765B (en) | Air inlet channel of gas engine | |
| CN207847749U (en) | Integrated exhaust manifolds structure | |
| CN207033566U (en) | A kind of four-cylinder diesel engine is vented pipe assembly | |
| JPS63309724A (en) | Exhaust device for multi cylinder engine with supercharger | |
| CN102235263A (en) | Air cylinder cover for four-valve diesel engine | |
| CN207813764U (en) | Gas machine air intake duct | |
| CN205172762U (en) | Quartastroke engine exhaust recirculation system | |
| CN208900243U (en) | A kind of engine and its air inlet system and exhaust system | |
| KR102080949B1 (en) | Supercharged internal combustion engine in modular design and modular system for such internal combustion engines and supercharging device | |
| CN209308866U (en) | A kind of new inlet manifold assembly | |
| CN213478510U (en) | Cylinder cover of engine, engine and automobile | |
| CN201125804Y (en) | Internal combustion engine waste gases recirculating system | |
| CN207406425U (en) | A kind of multi-cylinder diesel engine air intake duct | |
| CN106979098A (en) | the air inlet pipe assembly of gas engine | |
| CN209308859U (en) | A kind of new E GR system | |
| CN104564338B (en) | Structure for highly integrating oil, water, gas and pressurizer installing surfaces | |
| CN210343469U (en) | Exhaust manifold and gas engine assembly | |
| CN203374373U (en) | Air cylinder cover with integrated exhaust manifold | |
| CN206830279U (en) | Pulse blast pipe and the diesel engine for being provided with the pulse blast pipe | |
| CN214092006U (en) | Internal integrated engine crankcase ventilation device | |
| CN207715249U (en) | Diesel engine piston structure |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |