CN104234888B - A kind of gasoline engines and a kind of petrol engine - Google Patents
A kind of gasoline engines and a kind of petrol engine Download PDFInfo
- Publication number
- CN104234888B CN104234888B CN201410438131.8A CN201410438131A CN104234888B CN 104234888 B CN104234888 B CN 104234888B CN 201410438131 A CN201410438131 A CN 201410438131A CN 104234888 B CN104234888 B CN 104234888B
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- inlet manifold
- inlet
- valve
- engine
- rotating shaft
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Abstract
The invention discloses a kind of gasoline engines, including length changeable mechanism and it is provided with the inlet manifold of long tube inlet and short tube entrance, length changeable mechanism includes magnetic valve, actuator, rotating shaft and multiple valve blocks, valve block is connected in rotating shaft and is located at each short tube porch respectively, actuator connection rotating shaft and axis of rotation can be driven, the signal of the acceptable control unit of engine of magnetic valve simultaneously controls actuator action, the pressure stabilizing cavity of inlet manifold passes sequentially through the 3rd vacuum hose, triple valve and the first vacuum hose are communicated in the vacuum chamber of inlet manifold, vacuum chamber passes sequentially through triple valve, second vacuum hose, magnetic valve and the 4th vacuum hose are communicated in actuator.This programme can switch the active length of inlet manifold according to the rotating speed of engine, it is ensured that power output of the engine in the moment of torsion and high rotating speed of middle low speed.The invention also discloses a kind of petrol engine including above-mentioned gasoline engines.
Description
Technical field
The present invention relates to gasoline engine technology field, more particularly to a kind of gasoline engines and a kind of gasoline
Engine.
Background technology
Existing automobile with small output volumn engine, cylinder number of its inlet manifold according to engine adopt 3 or 4 air inlet pipe more
Road, and each admission line is regular length, is so difficult to ensure that inflation effect of the engine under different rotating speeds and different operating modes
Rate so that engine can not take into account the slow-speed of revolution and the output of high rate performance.
Therefore, how to make engine take into account the slow-speed of revolution and the output of high rate performance, be that those skilled in the art need at present
Technical problem to be solved.
Content of the invention
In view of this, the present invention provides a kind of gasoline engines, and the inlet manifold can turn according to engine
Speed is operated the switching of length, it is ensured that power output of the engine in the moment of torsion and high rotating speed of middle low speed.
In order to solve the above problems, the invention provides a kind of gasoline engines, including inlet manifold and length
Degree changeable mechanism, the inlet manifold are provided with gas outlet, long tube inlet and short tube entrance, the long tube inlet apart from described go out
The passage length of gas port is more than passage length of the short tube entrance apart from the gas outlet, and the length changeable mechanism includes electricity
Magnet valve, actuator, rotating shaft and multiple valve blocks, the valve block are connected in the rotating shaft and are located at each short tube entrance respectively
Place, the actuator connect the rotating shaft and can drive the axis of rotation, and the acceptable engine control of the magnetic valve is single
The signal of unit simultaneously controls the actuator action, and the pressure stabilizing cavity of the inlet manifold passes sequentially through the 3rd vacuum hose, triple valve
And first vacuum hose be communicated in the vacuum chamber of the inlet manifold, the vacuum chamber pass sequentially through the triple valve, second
Vacuum hose, the magnetic valve and the 4th vacuum hose are communicated in the actuator.
Preferably, in above-mentioned gasoline engines, the maximum open angle scope of the valve block is 50 °～
60°.
Preferably, in above-mentioned gasoline engines, the cross-sectional area of the valve block is 670～680mm2.
Preferably, in above-mentioned gasoline engines, the rotating shaft is passed through from 2/3 position of the valve block, and
The discharge coefficient allocation proportion of the valve block both sides is 8:2.
Preferably, in above-mentioned gasoline engines, when the valve block is closed, the air inlet discrimination
The long tube of pipe is in service aisle, and now maximum stream flow coefficient is 0.75；When the valve block is in open mode, the air inlet
The short tube of manifold is in groundwork passage, and discharge coefficient is not less than 0.8.
Preferably, in above-mentioned gasoline engines, the volume of the pressure stabilizing cavity is 800～1200ml.
Preferably, in above-mentioned gasoline engines, the length of each inlet channel of the inlet manifold is
560～620mm, and the equivalent diameter of each inlet channel is 30～32mm.
Preferably, in above-mentioned gasoline engines, the radius of curvature of the long tube inlet of the inlet manifold is
60mm, the radius of curvature of the short tube entrance of the inlet manifold is 36mm.
The course of work of the gasoline engines that the present invention is provided is as follows：
Pressure stabilizing cavity is disposed with the inlet manifold body, is communicated with the 3rd vacuum hose, for exporting certain vacuum power,
The vacuum power reaches the vacuum chamber arranged in inlet manifold by triple valve and the first vacuum hose, and makes in the vacuum chamber all the time
Keep certain vacuum.After magnetic valve is received from the signal of control unit of engine, meeting drive magnetic valve action connects
Path between logical vacuum chamber and actuator, at the same vacuum power to pass sequentially through the first vacuum hose, triple valve, the second vacuum soft
Pipe, magnetic valve and the 4th vacuum hose are reached at actuator, and actuator produces axially-movable in the presence of vacuum power, and logical
It is rotary motion of the rotating shaft together with valve block that transmission mechanism is crossed by transform linear motion, and valve block turns over different angles in rotary course
Degree, so as to realize the opening and closing to inlet manifold short tube entrance, and then realizes two kinds of works of long tube and short tube of inlet manifold
Make the switching of air flue.
It can be seen that, length changeable mechanism is integrated with the inlet manifold main body in this programme, and being capable of turning according to engine
Speed carries out the switching of two kinds of active lengths of inlet manifold long tube and short tube, it is ensured that engine turns in the moment of torsion and height of middle low speed
Power output when fast, while the emission level of engine can be improved and reduce the oil consumption of engine, so as to reach high-performance, low
Discharge and the purpose of low oil consumption.
Present invention also offers a kind of petrol engine, including the gasoline engines described in any of the above-described.
The beneficial effect that the derivation of the beneficial effect that the petrol engine is produced is brought with above-mentioned gasoline engines
Derivation is substantially similar to, therefore repeats no more herein.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the gasoline engines partial sectional view in specific embodiment of the invention scheme；
Fig. 2 is the length changeable mechanism structural representation in specific embodiment of the invention scheme；
Fig. 3 is the inlet manifold channel cross-section structure chart in specific embodiment of the invention scheme；
Fig. 4 is the gasoline engines side view in specific embodiment of the invention scheme；
Left views of the Fig. 5 for Fig. 4；
Right views of the Fig. 6 for Fig. 4；
Fig. 7 is the passage curvature schematic diagram of the inlet manifold in specific embodiment of the invention scheme；
In Fig. 1 to Fig. 7：
Length changeable mechanism -1, magnetic valve -2, actuator -4, valve block -5, bearing -6, rotating shaft -7, air inlet pressure sensor
Interface -8, EGR interfaces and pipeline -9, vacuum servo interface tube -10, carbon management and control valve interface -11, Pcv valve interface -12, voltage stabilizing
Chamber -13, vacuum chamber -14, triple valve -15, inlet channel -16, transmission mechanism -17, the first vacuum hose -31, the second vacuum are soft
The -32, the 3rd vacuum hose -33 of pipe, the 4th vacuum hose -34, long tube inlet -161, short tube entrance -162, gas outlet -163.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiment.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 to Fig. 7 is refer to, Fig. 1 is the gasoline engines partial cutaway in specific embodiment of the invention scheme
View；Fig. 2 is the length changeable mechanism structural representation in specific embodiment of the invention scheme；Fig. 3 is embodied as the present invention
Inlet manifold channel cross-section structure chart in example scheme；Fig. 4 is the gasoline engine inlet-air in specific embodiment of the invention scheme
Manifold side view；Left views of the Fig. 5 for Fig. 4；Right views of the Fig. 6 for Fig. 4；Fig. 7 is entering in specific embodiment of the invention scheme
The passage curvature schematic diagram of gas manifold.
In a kind of specific embodiment scheme, the invention provides a kind of gasoline engines, including air inlet discrimination
Pipe and length changeable mechanism 1.Wherein, inlet manifold is provided with gas outlet 163, long tube inlet 161 and short tube entrance 162, long tube
The passage length of entrance dip distance gas outlet 163 is more than passage length of the short tube entrance 162 apart from gas outlet 163.Length is variable
Mechanism 1 includes that magnetic valve 2, actuator 4, rotating shaft 7 and multiple valve blocks 5, valve block 5 are connected in rotating shaft 7 and are located at respectively every
At the short tube entrance 162 of individual inlet manifold, 4 connection rotating shaft 7 of actuator and rotating shaft 7 can be driven to rotate, magnetic valve 2 is acceptable to be sent out
The signal of motivation control unit simultaneously controls 4 action of actuator, the pressure stabilizing cavity 13 of inlet manifold pass sequentially through the 3rd vacuum hose 33,
Triple valve 15 and the first vacuum hose 31 are communicated in the vacuum chamber 14 of inlet manifold, vacuum chamber 14 pass sequentially through triple valve 15,
Soft 32 pipe of second vacuum, magnetic valve 2 and the 4th vacuum hose 34 are communicated in actuator 4.
Specifically, the length changeable mechanism 1 also includes that bearing 6, bearing 6 are sheathed in rotating shaft 7 and are installed on inlet manifold
Both sides, for supporting rotating shaft 7 to be rotated.Valve block 5 is connected in rotating shaft 7, and keeps default setting angle, to make
The opening and closing of the short tube entrance 162 of used time control inlet manifold, and can rotate a certain angle in company with rotating shaft 7 and realize valve block 5
The adjustment of the discharge coefficient of both sides.Actuator 4 is connected with rotating shaft 7 by transmission mechanism 17, and it is effect in vacuum power which acts on
Lower drive rotating shaft 7 and valve block 5 rotate.The effect of magnetic valve 2 is the signal for receiving control unit of engine, and according to letter
Number make-break operation is executed, so that the communication or disconnection between vacuum chamber 14 and actuator 4, so that vacuum power is controlled to executing
The effect of device 4.
It should be noted that the length changeable mechanism 1 in this programme also includes four vacuum hoses and a triple valve 15,
Respectively the first vacuum hose 31, the second vacuum hose 32, the 3rd vacuum hose 33 and the 4th vacuum hose 34, the 3rd vacuum are soft
One end of pipe 33 is communicated in the pressure stabilizing cavity 13 of inlet manifold, and the other end is connected to triple valve 15, and triple valve 15 is true by first again
Empty flexible pipe 31 is communicated in the vacuum chamber 14 of inlet manifold, and triple valve 15 is communicated in magnetic valve 2 also by the second vacuum hose 32, electricity
Magnet valve 2 is communicated in actuator 4 by the 4th vacuum hose 34.Four vacuum hoses are total to together with triple valve 15 and magnetic valve 2
The vacuum power of vacuum chamber 14 can be transferred at actuator 4 under same-action, so as to drive actuator 4 to work.
Wherein, 4 specific structure of actuator is common mechanism well known by persons skilled in the art in prior art, Neng Goushi
Now receive and vacuum power produce axial straight reciprocating motion, as shown in Fig. 2 through the transmission of transmission mechanism 17, using connecting rod plus
Crank type transmission mechanism can be the rotation of rotating shaft 7 the transform linear motion of actuator 4, realize the opening and closing of valve block 5.
The course of work of the gasoline engines that the present invention is provided is as follows：
Pressure stabilizing cavity 13 is disposed with the inlet manifold body, is communicated with the 3rd vacuum hose 33, certain true for exporting
Empty power, the vacuum power reach the vacuum chamber 14 arranged in inlet manifold by triple valve 15 and the first vacuum hose 31, and make this
Certain vacuum is remained in vacuum chamber 14.
After magnetic valve 2 is received from the signal of control unit of engine, vacuum is connected in meeting 2 action of drive magnetic valve
Path between chamber 14 and actuator 4, while vacuum power can pass sequentially through the first vacuum hose 31, triple valve 15, the second vacuum
Flexible pipe 32, magnetic valve 2 and the 4th vacuum hose 34 are reached at actuator 4, and actuator 4 is produced in the presence of vacuum power axially
Motion, and by transmission mechanism 17 by transform linear motion be rotating shaft 7 together with valve block 5 rotary motion, valve block 5 is in rotary course
In turn over different angles, so as to realize the opening and closing to inlet manifold short tube entrance 162, and then realize inlet manifold
The switching of two kinds of work air flues of long tube and short tube.Specifically, enter when control unit of engine sends signal demand and is switched to short tube
During gas, valve block 5 opens short tube entrance 162, and the air in pressure stabilizing cavity 13 just directly can enter into air inlet from short tube entrance 162 and lead to
In road 16；When control unit of engine sends signal demand is switched to long tube air inlet, valve block 5 closes short tube entrance 162, voltage stabilizing
Air in chamber 13 is just entered in inlet channel 16 from long tube inlet 161.
It should be noted that when engine is designed, should be turned to the middle and slow speed of revolution and height of engine according to the demand of car load
The performance of speed is balanced and takes into account.For this purpose, the discharge coefficient of each passage of inlet manifold and air inlet crushing this also can root to contradiction
It is balanced according to the demand of engine performance.Here, requirement of this programme according to engine power performance, by the maximum of valve block 5
Between 50 °～60 °, the cross-sectional area of valve block 5 is 670～680mm to the design of open angle scope2, rotating shaft 7 from valve block 5 2/3
Position pass through, and the discharge coefficient allocation proportion of 5 both sides of valve block be A:B=8:2 (show the A sides of 5 both sides of valve block in Fig. 3
With B sides).When valve block 5 is closed, the long tube of inlet manifold is in service aisle, and now maximum stream flow coefficient is
0.75；When valve block 5 is in open mode, the short tube of inlet manifold is in groundwork passage, and its discharge coefficient is not less than
0.8.It is arranged such, the discharge coefficient distribution at short tube entrance 162 will be more reasonable.
It should be noted that in order to avoid between cylinder air inlet interfere, generally set in fuel-injection engine
It is equipped with pressure stabilizing cavity 13, the vibration frequency of the size of pressure stabilizing cavity 13 for air-flow in inlet manifold has a great impact.This programme
It is preferred that the volume of pressure stabilizing cavity 13 is designed as 800～1200ml, to ensure the intake uniformity of each passage of inlet manifold.
It should be noted that the inlet manifold in this programme is provided with multiple inlet channels, specifically, set in the present embodiment
It is equipped with 4 inlet channels.The present invention is calculated (mainly according to the principle of reflection of intake pressure wave according to the matching theory of valve actuating mechanism
And the active length of Cam Profile is calculated), it is 560～620mm by the Design of length of each inlet channel
Between, passage is designed using unequal section, and the design requirement of equivalent diameter is arranged such between 30～32mm of Φ, can be abundant
Fluctuation effect in using inlet manifold finally realizes the high performance output of engine improving the charging efficiency of engine.
Specifically, the cross sectional shape of the inlet manifold in this embodiment scheme refers to Fig. 3, the song of the passage of inlet manifold
Rate radius refers to Fig. 7, it is preferable that in this embodiment scheme, the radius of curvature of the long tube inlet 161 of inlet manifold is R=
60mm, the radius of curvature of the short tube entrance 162 of inlet manifold is R=36mm.After long tube and short tube converge, pass sequentially through R55.6,
The passage of R491.9, R200.6, reaches cylinder head entrance.
In addition, there also is provided air inlet pressure sensor interface 8, EGR interfaces and pipeline 9, vacuum on the inlet manifold body
Power-assisted interface tube 10, carbon management and control valve interface 11 and Pcv valve interface 12, the position of each interface refers to Fig. 4 to Fig. 6.This
A little interfaces are similar with the arrangement of original inlet manifold with pipeline, therefore here is omitted.
This programme is to be designed to draw by the method for theoretical calculation, software analysis and bench test, i.e., first lead to
Cross theoretical calculation and obtain some parameters, such as length, caliber and pressure stabilizing cavity volume etc. are verified further according to analysis software,
The result sizing of bench test is finally carried out.
By the matched design with other systems so that the 1.206L engines of the carried inlet manifold have torque per liter
97.8N m/L, the performance indications of power per liter 56Kw/L, while have 105.5N m/2000r/min, 118N m/3200r/
The performance level of min, 114～118N m/3200～4800r/min and 67.5Kw/6000r/min.
It can be seen that, length changeable mechanism 1 is integrated with the inlet manifold main body in this programme, and being capable of turning according to engine
Speed carries out the switching of two kinds of active lengths of inlet manifold long tube and short tube, it is ensured that engine turns in the moment of torsion and height of middle low speed
Power output when fast, while the emission level of engine can be improved and reduce the oil consumption of engine, so as to reach high-performance, low
Discharge and the purpose of low oil consumption.
Present invention also offers a kind of petrol engine, including the gasoline engines described in any of the above-described.
The beneficial effect that the derivation of the beneficial effect that the petrol engine is produced is brought with above-mentioned gasoline engines
Derivation is substantially similar to, therefore repeats no more herein.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Multiple modifications of these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (5)
1. a kind of gasoline engines, it is characterised in that including inlet manifold and length changeable mechanism (1), described enter
Gas manifold is provided with gas outlet (163), long tube inlet (161) and short tube entrance (162), and long tube inlet (161) are apart from institute
The passage length for stating gas outlet (163) is more than the passage length of short tube entrance (162) apart from the gas outlet (163), institute
Length changeable mechanism (1) is stated including magnetic valve (2), actuator (4), rotating shaft (7) and multiple valve blocks (5), described valve block (5) are solid
It is connected in the rotating shaft (7) above and is located at each short tube entrance (162) place respectively, described actuator (4) connects rotating shaft (7)
And the rotating shaft (7) can be driven to rotate, the signal of described magnetic valve (2) acceptable control unit of engine simultaneously controls described holding
Row device (4) action, the pressure stabilizing cavity (13) of the inlet manifold pass sequentially through the 3rd vacuum hose (33), triple valve (15) and
One vacuum hose (31) is communicated in the vacuum chamber (14) of the inlet manifold, and vacuum chamber (14) pass sequentially through the triple valve
(15), the second vacuum hose (32), the magnetic valve (2) and the 4th vacuum hose (34) are communicated in the actuator (4), institute
The volume for stating pressure stabilizing cavity (13) is 800～1200ml, and the maximum open angle scope of valve block (5) is 50 °～60 °, described
Rotating shaft (7) is passed through from 2/3 position of the valve block (5), and the discharge coefficient allocation proportion of the valve block (5) both sides is 8:2, when
When valve block (5) are closed, the long tube of the inlet manifold is in service aisle, and now maximum stream flow coefficient is
0.75；When the valve block (5) is in open mode, the short tube of the inlet manifold is in groundwork passage, discharge coefficient
It is not less than 0.8.
2. gasoline engines according to claim 1, it is characterised in that the cross-sectional area of valve block (5)
For 670～680mm2.
3. gasoline engines according to claim 1, it is characterised in that each air inlet of the inlet manifold
The length of passage (16) is 560～620mm, and the equivalent diameter of each inlet channel (16) is 30～32mm.
4. gasoline engines according to claim 1, it is characterised in that the long tube inlet of the inlet manifold
(161) radius of curvature is 60mm, and the radius of curvature of the short tube entrance (162) of the inlet manifold is 36mm.
5. a kind of petrol engine, it is characterised in that including the gasoline engine inlet-air discrimination described in any one of Claims 1-4
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438131.8A CN104234888B (en) | 2014-08-29 | 2014-08-29 | A kind of gasoline engines and a kind of petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438131.8A CN104234888B (en) | 2014-08-29 | 2014-08-29 | A kind of gasoline engines and a kind of petrol engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234888A CN104234888A (en) | 2014-12-24 |
| CN104234888B true CN104234888B (en) | 2017-03-15 |
Family
ID=52223646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410438131.8A Expired - Fee Related CN104234888B (en) | 2014-08-29 | 2014-08-29 | A kind of gasoline engines and a kind of petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104234888B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018105180A (en) * | 2016-12-26 | 2018-07-05 | 愛三工業株式会社 | Intake manifold |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5715782A (en) * | 1996-08-29 | 1998-02-10 | Genral Motors Corporation | Composite molded butterfly valve for an internal combustion engine |
| JP2007255331A (en) * | 2006-03-24 | 2007-10-04 | Keihin Corp | Intake manifold device for internal combustion engine |
| CN201539329U (en) * | 2009-09-04 | 2010-08-04 | 奇瑞汽车股份有限公司 | Two-stage variable air inlet manifold |
| CN202055954U (en) * | 2010-12-31 | 2011-11-30 | 上汽通用五菱汽车股份有限公司 | air inlet manifold of engine |
| CN204175475U (en) * | 2014-08-29 | 2015-02-25 | 力帆实业(集团)股份有限公司 | A kind of gasoline engines and a kind of petrol engine |
-
2014
- 2014-08-29 CN CN201410438131.8A patent/CN104234888B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104234888A (en) | 2014-12-24 |
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