CN2895774Y - Equal-length admission manifold branch structure of automotive engine - Google Patents
Equal-length admission manifold branch structure of automotive engine Download PDFInfo
- Publication number
- CN2895774Y CN2895774Y CNU200620110247XU CN200620110247U CN2895774Y CN 2895774 Y CN2895774 Y CN 2895774Y CN U200620110247X U CNU200620110247X U CN U200620110247XU CN 200620110247 U CN200620110247 U CN 200620110247U CN 2895774 Y CN2895774 Y CN 2895774Y
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- China
- Prior art keywords
- cavity resonator
- manifold
- equal
- manifold branches
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000295 fuel oil Substances 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000012938 design process Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
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Abstract
The utility model requires to protect an equal-length admission manifold branch structure of automotive engine, which comprises a cavity resonator and several manifold branches connected with the cavity resonator. The device is characterized in that the combining interface of the cavity resonator and the manifold branches is designed to be an inclined plane along the arranging direction of the manifold branches, which makes the lengths of manifold branches connecting the cavity resonator and each cylinder jaws are equal. The device changes the connection locations between the manifold branches and the cavity resonator by adopting said shape change of the cavity resonator to realize the aim of achieving equal-length manifold branches, which can ensure uniformity air flows in various engine cylinders, and uniform combustion of fuel-oil inside the cylinders. Meanwhile, the device conquers the limitation in mold-opening direction of casting molds, designs the manifold branches in various cylinders of the admission manifold branch under three-dimensional condition with a high-degree of freedom in design which simplifies the designing process.
Description
Technical field
The utility model belongs to technical field of automobile engine, is specifically related to the intake manifold structure of motor car engine.
Background technique
Bulk limits existing air intake manifold of automotive engine and the contradiction of casting mould die sinking direction in order to be in harmonious proportion in design process, is difficult to design the intake manifold that satisfies the isometric design principle of intake manifold.As seen from Figure 1: in order to guarantee the space mounting size, resonant cavity 1 has certain skew with each cylinder import 3 of motor, and each air inlet branch pipe 2 has to be designed to not isometric structural type.Like this, the cylinder uniformity of air-flow can not get good assurance, influences evenly burning in the cylinder.
Summary of the invention
The purpose of this utility model is to propose the isometric intake manifold structure of a kind of motor car engine, to guarantee the cylinder uniformity of air-flow, makes fuel oil energy evenly burning in cylinder, and design process is simplified.
The technical solution of the utility model is as follows:
The isometric intake manifold structure of motor car engine, many branch pipes that include resonant cavity and be attached thereto, the face that described resonant cavity is combined with many branch pipes is designed to make each branch pipe be connected to the equal in length of each cylinder port from resonant cavity along the inclined-plane of the orientation inclination of branch pipe.Through resonant cavity, imported cylinder-head port equably from the fresh air of throttle body by independent isometric branch pipe separately, and with enter the head combustion chamber ignition after the fuel oil mist of oil of MPI oil nozzle ejection evenly mixes.
Because this structure adopts the change in shape of resonant cavity, and the binding site of each branch pipe and resonant cavity is changed, and reaches isometric purpose, can guarantee the uniformity of each cylinder air-flow of motor like this, make fuel oil energy evenly burning in cylinder.Simultaneously, this structure can be taken into account the restriction of casting mould die sinking direction, each cylinder branch pipe of design intake manifold under spatiality, and design freedom is high, and design process is simplified.
Description of drawings
Fig. 1 is the structural representation of existing intake manifold;
Fig. 2 is the schematic representation of a kind of configuration state of the intake manifold that relates to of the utility model;
Fig. 3 is the schematic representation of the another kind of configuration state of the intake manifold that relates to of the utility model.
Embodiment
The intake manifold structure that model utility relates to is referring to Fig. 2 and Fig. 3, and it is made up of resonant cavity 1 and the many branch pipes 2 that are attached thereto, and at first designs the branch mould center line of each branch pipe 2 according to the casting principle, designs the projection line of each cylinder port to resonant cavity 1 again.In order to satisfy the isometric requirement of each branch pipe 2, the face that resonant cavity 1 is combined with each branch pipe 2 is designed to along the inclined-plane A of the orientation inclination of branch pipe, according to the position of resonant cavity 1 with respect to each cylinder port, its inclined-plane A be designed to as shown in Figure 2 to 4 tilt or as shown in Figure 3 be tilted to the left.Make each branch pipe 2 be connected to the equal in length of each cylinder port, to obtain fuel oil energy evenly burning in each cylinder from resonant cavity 1.
Claims (1)
1, the isometric intake manifold structure of motor car engine, many branch pipes that include resonant cavity and be attached thereto, it is characterized in that: the inclined-plane of the face that described resonant cavity combines with many branch pipes for tilting along the orientation of branch pipe, each branch pipe is connected to the equal in length of each cylinder port from resonant cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620110247XU CN2895774Y (en) | 2006-03-31 | 2006-03-31 | Equal-length admission manifold branch structure of automotive engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620110247XU CN2895774Y (en) | 2006-03-31 | 2006-03-31 | Equal-length admission manifold branch structure of automotive engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895774Y true CN2895774Y (en) | 2007-05-02 |
Family
ID=38065351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620110247XU Expired - Fee Related CN2895774Y (en) | 2006-03-31 | 2006-03-31 | Equal-length admission manifold branch structure of automotive engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895774Y (en) |
-
2006
- 2006-03-31 CN CNU200620110247XU patent/CN2895774Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20110331 |