CN203383943U - Light engine intake pipe - Google Patents
Light engine intake pipe Download PDFInfo
- Publication number
- CN203383943U CN203383943U CN201320381067.5U CN201320381067U CN203383943U CN 203383943 U CN203383943 U CN 203383943U CN 201320381067 U CN201320381067 U CN 201320381067U CN 203383943 U CN203383943 U CN 203383943U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- voltage stabilizing
- short
- pressure stabilizing
- intake duct
- 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 - Lifetime
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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 light engine intake pipe comprising an air inlet main pipe, an EGR (exhaust gas recirculation) exhaust gas inlet, a short air inlet plus a voltage stabilizing chamber, a long air inlet plus a voltage stabilizing chamber and eight intake manifolds. The light engine intake pipe is characterized in that the structure scheme of using two layers of combination of the voltage stabilizing chambers with the long and short air inlets; the intake pipe is divided into two layers of air inlets, wherein one layer of the air inlet uses the long air inlet plus the voltage stabilizing chamber while the other layer of the air inlet uses the short inlet plus the voltage stabilizing chamber; each air inlet of an engine separately uses a intake manifold; the long air inlet plus the voltage stabilizing chamber is located above the short air inlet plus the voltage stabilizing chamber. The light engine intake pipe has the advantages of realizing low and high speed air inflow of a diesel engine, meeting different needs of a swirl ratio, improving the uniformity of the EGR exhaust gas of the engine and reducing fuel consumption and emission.
Description
Technical field
The utility model belongs to four valve light-duty diesel engine.
background technique
Current four valve light-duty diesel engine Inlet Manifold Design are due to spatial constraints with in order to guarantee the engine structure compactness, adopt short suction tude and pressure stabilizing cavity structure, but motor is in middle low speed situation, due to the air feeder structure restriction, motor swirl rate level and air inflow are difficult to take into account, be unfavorable for diesel engine fuel oil atomization, mixing, can not effectively organize combustion process, cause that in motor, low-speed performance is poor, oil consumption is high, discharge is poor.
Summary of the invention
The purpose of this utility model is to provide a kind of four valve light-duty diesel engine suction tude, simple in structure, compact, adopt 1 short air inlet+1 pipe pressure stabilizing cavity+4 admission manifold branch structure, or 1 short air inlet+1 pipe pressure stabilizing cavity+8 admission manifold branch structure, can guarantee that high engine speeds is well behaved a kind of
The light duty engine suction tude.
Technical solution of the present utility model is such, and a kind of light duty engine suction tude comprises intake manifold (1), EGR exhaust gas inlet (2), short intake duct+pressure stabilizing cavity (3), progress air flue+pressure stabilizing cavity (4), eight intake manifold (5).It is characterized in that suction tude is divided into the long and short intake duct composite structure of pressure stabilizing cavity, two-layer intake duct, the first layer intake duct adopts progress air flue+pressure stabilizing cavity (4), and second layer intake duct adopts short intake duct+pressure stabilizing cavity (3).
Each intake duct of motor adopts separately an intake manifold (5).
Progress air flue+pressure stabilizing cavity (4) is in the top of short intake duct+pressure stabilizing cavity (3).
The beneficial effects of the utility model are:
1, can realize the different demands of diesel engine low speed and high speed air inflow, swirl rate.
2, can improve engine EGR waste gas mixture homogeneity.
3, can reduce engine consumption and discharge.
The accompanying drawing explanation
fig. 1 is the integrally-built plan view of a kind of light duty engine suction tude of the utility model.
Fig. 2 is a kind of light duty engine suction tude of the utility model air inlet flow schematic diagram.
in Fig. 1～Fig. 2, intake manifold (1), EGR exhaust gas inlet (2), short intake duct+pressure stabilizing cavity (3), progress air flue+pressure stabilizing cavity (4), 8 intake manifold (5).
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, the utility model provides a kind of suction tude for diesel engine, and suction tude mainly comprises: intake manifold (1), EGR exhaust gas inlet (2), short intake duct+pressure stabilizing cavity (3), progress air flue+pressure stabilizing cavity (4), 8 intake manifold (5).Can not take into account low engine speed performance and high speed performance problem for this type of situation conventional design suction tude, and the utility model design proposal, adopt the long and short intake duct composite structure of two-layer pressure stabilizing cavity scheme, first layer adopts 1 progress air flue+1 pressure stabilizing cavity+4 admission manifold branch structures, and the second layer adopts 1 short intake duct+1 pressure stabilizing cavity+4 admission manifold branch structures.The air inlet harmonic effect of utilizing first layer progress air flue air feeder structure can improve the air inflow of motor under lower-speed state and compare level than high-eddy, guarantee the low engine speed performance, because longer gas-entered passageway EGR waste gas can fully mix with fresh air, prevent that EGR waste gas from mixing the inhomogeneous motor over-emitting black exhaust problem that causes simultaneously; The short intake duct air feeder structure of the second layer, have larger air inflow when the high speed due to the little assurance motor of the short resistance of admission line, thereby guarantee that motor not there will be the over-emitting black exhaust problem when low speed.The design suction tude has solved the contradiction that traditional suction tude can not meet diesel engine low speed and high speed air inflow, swirl rate level requirement simultaneously like this, effectively organizes the engine charge eddy current, thereby reduces engine consumption, discharge.The air feeder structure compactness, be applicable to light-duty diesel engine and arrange simultaneously.
Claims (3)
1. a light duty engine suction tude, comprise intake manifold (1), EGR exhaust gas inlet (2), short intake duct+pressure stabilizing cavity (3), progress air flue+pressure stabilizing cavity (4), eight intake manifold (5), it is characterized in that suction tude is divided into the long and short intake duct composite structure of pressure stabilizing cavity, two-layer intake duct, the first layer intake duct adopts progress air flue+pressure stabilizing cavity (4), and second layer intake duct adopts short intake duct+pressure stabilizing cavity (3).
2. a kind of light duty engine suction tude according to claim 1, is characterized in that each intake duct of motor adopts separately an intake manifold (5).
3. a kind of light duty engine suction tude according to claim 1, is characterized in that the top of progress air flue+pressure stabilizing cavity (4) in short intake duct+pressure stabilizing cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320381067.5U CN203383943U (en) | 2013-06-29 | 2013-06-29 | Light engine intake pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320381067.5U CN203383943U (en) | 2013-06-29 | 2013-06-29 | Light engine intake pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383943U true CN203383943U (en) | 2014-01-08 |
Family
ID=49872450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320381067.5U Expired - Lifetime CN203383943U (en) | 2013-06-29 | 2013-06-29 | Light engine intake pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738150A (en) * | 2022-04-29 | 2022-07-12 | 哈尔滨东安汽车动力股份有限公司 | Bi-stable-pressure cavity intake manifold assembly for uniformly distributing EGR waste gas |
-
2013
- 2013-06-29 CN CN201320381067.5U patent/CN203383943U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738150A (en) * | 2022-04-29 | 2022-07-12 | 哈尔滨东安汽车动力股份有限公司 | Bi-stable-pressure cavity intake manifold assembly for uniformly distributing EGR waste gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |
|
| CX01 | Expiry of patent term |