CN206903787U - A kind of admission manifold branch structure - Google Patents
A kind of admission manifold branch structure Download PDFInfo
- Publication number
- CN206903787U CN206903787U CN201720323101.1U CN201720323101U CN206903787U CN 206903787 U CN206903787 U CN 206903787U CN 201720323101 U CN201720323101 U CN 201720323101U CN 206903787 U CN206903787 U CN 206903787U
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- China
- Prior art keywords
- cylinder cap
- power transmission
- transmission shaft
- air
- gas port
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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
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model discloses a kind of admission manifold branch structure, including inlet manifold body, inlet manifold body has electronic throttle and multiple gas ports, cylinder cap is installed at gas port, each cylinder mouth of cylinder cap has main airway mouth and secondary gas port, a piece power transmission shaft is installed on the cylinder cap of inlet manifold body, it is provided with to correspond on power transmission shaft and is placed on cylinder cap air-intake valve plate in each secondary gas port, and cylinder cap side is provided with vacuum valve block actuator, one control rotor is installed in the control shaft of vacuum valve block actuator, rotor is controlled to be arranged on the side of power transmission shaft, power transmission shaft side is arranged on cylinder cap by the sealing gasket with rolling bearing, control shaft by pullling control rotor and then rotating drive shaft up and down, and then control aperture of the air-intake valve plate in secondary gas port.By controlling the rotation of the vacuum cavitations air-intake valve plate of vacuum valve block actuator, the rotation of air-intake valve plate adjusts out different air inlet apertures, realizes different induction swirl ratios the utility model.
Description
Technical field
It the utility model is related to a kind of admission manifold branch structure.
Background technology
Intake swirl refers to the air motion that is rotated around cylinder axis of air for sucking cylinder, strength of vortex in cylinder of diesel engine
Formation, burning, discharge for gaseous mixture in cylinder suffer from material impact；With the change of rotating speed and load, corresponding engine
The optimal intake vortex strength of engine also constantly change, when the high operating mode operation of engine, fuel-injection pressure improves, and mixes
The strength of vortex closed required by gas is formed is weak, and the coefficient of charge requirement in cylinder is big；On the contrary then injection pressure reduces, fuel spray
It can be deteriorated, it is desirable to have stronger eddy motion to strengthen the mixing of mist of oil and air.
The induction swirl ratio of general diesel engine is immutable at present, and the non-constant width of operating condition scope of diesel engine for automobile, only
The vortex level that constant gas handling system is formed in cylinder is only relied on to be difficult to meet each operating mode fuel oil burning to strength of vortex
Requirement, so as to have impact on the economy of engine, dynamic property and discharge index.
Utility model content
The utility model is in order to solve the above-mentioned deficiency of prior art, it is proposed that a kind of admission manifold branch structure.
In order to solve the above-mentioned technical problem, the utility model uses following technical scheme：A kind of admission manifold branch structure, including
Inlet manifold body, the inlet manifold body have electronic throttle and multiple gas ports, cylinder are provided with the gas port
Lid, each cylinder mouth of the cylinder cap have main airway mouth and secondary gas port, extended transversely through on the cylinder cap of the inlet manifold body
A piece power transmission shaft is installed, is provided with the power transmission shaft and is correspondingly placed on cylinder cap air-intake valve plate in each secondary gas port, and
The cylinder cap side is provided with vacuum valve block actuator, and a control is provided with the control shaft of the vacuum valve block actuator and is turned
Piece, the control rotor are arranged on the side of power transmission shaft, and the power transmission shaft side is installed by the sealing gasket with rolling bearing
On cylinder cap, the control shaft controls air-intake valve plate in secondary gas by pullling control rotor up and down and then rotating drive shaft
Aperture in road junction.
Preferably, there is vacuum valve fixed support, the vacuum valve fixed support passes through on the vacuum valve block actuator
Hexagon socket head cap screw is arranged on the cylinder cap.
Preferably, the air-intake valve plate is fixed on the power transmission shaft by a pair of screws.
Compared with prior art, the utility model by control vacuum valve block actuator vacuum cavitations air-intake valve plate turn
Dynamic, the rotation of air-intake valve plate adjusts out different air inlet apertures, realizes different induction swirl ratios, makes engine all the time in most
Good strength of vortex, so as to improve the economy of engine, dynamic property and discharge index.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is control structure schematic diagram of the present utility model.
Embodiment
Utility model is described in detail with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, the utility model proposes a kind of admission manifold branch structure, including inlet manifold body 1, air inlet
Manifold body 1 has electronic throttle and multiple gas ports, and cylinder cap 8 is provided with gas port, and each cylinder mouth of cylinder cap has master
Gas port 9 and secondary gas port 10, extend transversely through on the cylinder cap of inlet manifold body 1 and a power transmission shaft 6 is installed, on power transmission shaft 6
It is provided with to correspond to and is placed on cylinder cap air-intake valve plate 3 in each secondary gas port, and cylinder cap side is provided with vacuum valve block actuator 2,
One control rotor is installed, control rotor is arranged on the side of power transmission shaft 6, transmission in the control shaft of vacuum valve block actuator 2
The side of axle 6 is arranged on cylinder cap by the sealing gasket 7 with rolling bearing, and control shaft is turned by pullling control rotor up and down
Dynamic power transmission shaft 6, and then control aperture of the air-intake valve plate 3 in secondary gas port.
There is vacuum valve fixed support, vacuum valve fixed support is installed by hexagon socket head cap screw 5 on vacuum valve block actuator 2
On cylinder cap.Air-intake valve plate 3 is fixed on power transmission shaft by a pair of screws 4.
Vacuum valve block actuator 2 is adjusted by negative pressure, the rotational angle of air-intake valve plate 3 is controlled, so as to control engine
Induction swirl ratio, engine is set to be constantly in optimal intake vortex strength.
When low engine speed is run, it is necessary to have stronger eddy motion to strengthen the mixing of mist of oil and air, now lead to
Cross vacuum valve block actuator 2 to adjust, reduce the aperture of air-intake valve plate 3, so as to improve induction swirl ratio.
When high engine speeds are run, fuel-injection pressure improves, and the strength of vortex required by mixed Daqu is weak, now
Adjusted by vacuum valve block actuator 2, increase the aperture of air-intake valve plate 3, so as to reduce induction swirl ratio, improve intake efficiency.
Above-described embodiment only expresses several embodiments of the present utility model, and its description is more specific and detailed, but simultaneously
Can not be therefore understands that being the limitation to the utility model patent scope.It should be pointed out that the ordinary skill people for this area
For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality
With new protection domain.Therefore, the utility model patent and protection domain should be defined by appended claims.
Claims (3)
1. a kind of admission manifold branch structure, including inlet manifold body (1), the inlet manifold body (1) has electronic throttle
With multiple gas ports, cylinder cap (8) is installed at the gas port, each cylinder mouth of the cylinder cap has main airway mouth (9) and pair
Gas port (10), it is characterised in that：Extended transversely through on the cylinder cap of the inlet manifold body (1) and a power transmission shaft (6) be installed,
It is provided with to correspond on the power transmission shaft (6) and is placed on cylinder cap air-intake valve plate (3) in each secondary gas port, and the cylinder cap side
Provided with vacuum valve block actuator (2), a control rotor is installed in the control shaft of the vacuum valve block actuator (2), it is described
Rotor is controlled to be arranged on the side of power transmission shaft (6), power transmission shaft (6) side is pacified by the sealing gasket (7) with rolling bearing
On cylinder cap, the control shaft controls air-intake valve plate by pullling control rotor up and down and then rotating drive shaft (6)
(3) aperture in secondary gas port.
2. admission manifold branch structure according to claim 1, it is characterised in that：Have on the vacuum valve block actuator (2)
Vacuum valve fixed support, the vacuum valve fixed support are arranged on the cylinder cap by hexagon socket head cap screw (5).
3. admission manifold branch structure according to claim 1, it is characterised in that：The air-intake valve plate (3) passes through a pair of screws
(4) it is fixed on the power transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323101.1U CN206903787U (en) | 2017-03-30 | 2017-03-30 | A kind of admission manifold branch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323101.1U CN206903787U (en) | 2017-03-30 | 2017-03-30 | A kind of admission manifold branch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903787U true CN206903787U (en) | 2018-01-19 |
Family
ID=61295208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720323101.1U Active CN206903787U (en) | 2017-03-30 | 2017-03-30 | A kind of admission manifold branch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140678A (en) * | 2020-04-07 | 2020-05-12 | 潍柴动力股份有限公司 | Vortex ratio adjusting device suitable for single cylinder engine test |
-
2017
- 2017-03-30 CN CN201720323101.1U patent/CN206903787U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140678A (en) * | 2020-04-07 | 2020-05-12 | 潍柴动力股份有限公司 | Vortex ratio adjusting device suitable for single cylinder engine test |
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