CN204175475U - 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
- CN204175475U CN204175475U CN201420495403.3U CN201420495403U CN204175475U CN 204175475 U CN204175475 U CN 204175475U CN 201420495403 U CN201420495403 U CN 201420495403U CN 204175475 U CN204175475 U CN 204175475U
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- intake manifold
- gasoline engines
- valve block
- rotating shaft
- controlling element
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Abstract
The utility model discloses a kind of gasoline engines, comprise variable-length mechanism and be provided with the intake manifold of long tube entrance and short tube entrance, variable-length mechanism comprises solenoid valve, final controlling element, rotating shaft and multiple valve block, valve block to be connected in rotating shaft and to lay respectively at each short tube ingress, final controlling element connection rotating shaft and can axis of rotation be driven, solenoid valve can accept the signal of control unit of engine and control final controlling element action, the pressure stabilizing cavity of intake manifold is successively by the 3rd vacuum hose, three-way valve and the first vacuum hose are communicated in the vacuum chamber of intake manifold, vacuum chamber passes through three-way valve successively, second vacuum hose, solenoid valve and the 4th vacuum hose are communicated in final controlling element.This programme can switch the active length of intake manifold according to the rotating speed of motor, ensure the power stage of motor when the moment of torsion of middle low speed and high rotating speed.The invention also discloses a kind of petrol engine comprising above-mentioned gasoline engines.
Description
Technical field
The utility model relates to gasoline engine technology field, particularly relates to a kind of gasoline engines and a kind of petrol engine.
Background technique
Existing automobile with small output volumn motor, its intake manifold is according to the cylinder number of motor, many employings 3 or 4 admission lines, and each admission line is fixed length, so be difficult to ensure the charging efficiency of motor under different rotating speeds and different operating mode, make motor can not take into account the output of the slow-speed of revolution and high rate performance.
Therefore, how making motor take into account the output of the slow-speed of revolution and high rate performance, is the current technical issues that need to address of those skilled in the art.
Model utility content
In view of this, the utility model provides a kind of gasoline engines, and this intake manifold can carry out the switching of active length according to engine speed, can ensure the power stage of motor when the moment of torsion of middle low speed and high rotating speed.
In order to solve the problem, the utility model provides a kind of gasoline engines, comprise intake manifold and variable-length mechanism, described intake manifold is provided with air outlet, long tube entrance and short tube entrance, described long tube entrance is greater than the passage length of described short tube entrance apart from described air outlet apart from the passage length of described air outlet, described variable-length mechanism comprises solenoid valve, final controlling element, rotating shaft and multiple valve block, described valve block to be connected in described rotating shaft and to lay respectively at each short tube ingress, described final controlling element connects described rotating shaft and can drive described axis of rotation, described solenoid valve can accept the signal of control unit of engine and control described final controlling element action, the pressure stabilizing cavity of described intake manifold is successively by the 3rd vacuum hose, three-way valve and the first vacuum hose are communicated in the vacuum chamber of described intake manifold, described vacuum chamber is successively by described three-way valve, second vacuum hose, described solenoid valve and the 4th vacuum hose are communicated in described final controlling element.
Preferably, in above-mentioned gasoline engines, the maximum open angle scope of described valve block is 50 ° ~ 60 °.
Preferably, in above-mentioned gasoline engines, the cross-section area of described valve block is 670 ~ 680mm
2.
Preferably, in above-mentioned gasoline engines, described rotating shaft is passed from 2/3 position of described valve block, and the flow coefficient allocation proportion of described valve block both sides is 8:2.
Preferably, in above-mentioned gasoline engines, when described valve block is in closed condition, the long tube of described intake manifold is in service aisle, and now peak rate of flow coefficient is 0.75; When described valve block is in open mode, the short tube of described intake manifold is in groundwork passage, and flow coefficient is not less than 0.8.
Preferably, in above-mentioned gasoline engines, the volume of described pressure stabilizing cavity is 800 ~ 1200ml.
Preferably, in above-mentioned gasoline engines, the length of each gas-entered passageway of described intake manifold is 560 ~ 620mm, and the equivalent diameter of each described gas-entered passageway is 30 ~ 32mm.
Preferably, in above-mentioned gasoline engines, the radius of curvature of the long tube entrance of described intake manifold is 60mm, and the radius of curvature of the short tube entrance of described intake manifold is 36mm.
The working procedure of the gasoline engines that the utility model provides is as follows:
This intake manifold body is furnished with pressure stabilizing cavity, communicate with the 3rd vacuum hose, for exporting certain vacuum power, this vacuum power arrives by three-way valve and the first vacuum hose the vacuum chamber that intake manifold is arranged, and makes to remain certain degree of vacuum in this vacuum chamber.When after the signal that solenoid valve receives from control unit of engine, solenoid valve action can be driven, connect the path between vacuum chamber and final controlling element, vacuum power can pass through the first vacuum hose successively simultaneously, three-way valve, second vacuum hose, solenoid valve and the 4th vacuum hose arrive final controlling element place, final controlling element produces axial motion under the effect of vacuum power, and be the rotary motion of rotating shaft together with valve block by driving mechanism by transform linear motion, valve block turns over different angles in rotary course, thus the opening and closing realized intake manifold short tube entrance, and then realize the long tube of intake manifold and the switching of short tube two kinds work air flue.
Visible, intake manifold main body in this programme is integrated with variable-length mechanism, and the switching of intake manifold long tube and short tube two kinds of active lengths can be carried out according to the rotating speed of motor, the power stage of motor when the moment of torsion of middle low speed and high rotating speed can be ensured, the emission level of motor can be improved simultaneously and reduce the oil consumption of motor, thus reaching the object of high-performance, low emission and low oil consumption.
The utility model additionally provides a kind of petrol engine, comprises the gasoline engines described in above-mentioned any one.The derivation of the beneficial effect that the derivation of the beneficial effect that this petrol engine produces and above-mentioned gasoline engines bring is substantially similar, therefore repeats no more herein.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the gasoline engines partial sectional view in the utility model specific embodiment scheme;
Fig. 2 is the variable-length mechanism structure schematic diagram in the utility model specific embodiment scheme;
Fig. 3 is the intake manifold channel cross-section structural drawing in the utility model specific embodiment scheme;
Fig. 4 is the gasoline engines side view in the utility model specific embodiment scheme;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the right elevation of Fig. 4;
Fig. 7 is the passage curvature schematic diagram of the intake manifold in the utility model specific embodiment scheme;
In Fig. 1 to Fig. 7:
Variable-length mechanism-1, solenoid valve-2, final controlling element-4, valve block-5, bearing-6, rotating shaft-7, air inlet pressure sensor interface-8, EGR interface and pipeline-9, vacuum servo interface tube-10, carbon pipe control valve interface-11, Pcv valve interface-12, pressure stabilizing cavity-13, vacuum chamber-14, three-way valve-15, gas-entered passageway-16, driving mechanism-17, first vacuum hose-31, second vacuum hose-32, 3rd vacuum hose-33, 4th vacuum hose-34, long tube entrance-161, short tube entrance-162, air outlet-163.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 to Fig. 7, Fig. 1 is the gasoline engines partial sectional view in the utility model specific embodiment scheme; Fig. 2 is the variable-length mechanism structure schematic diagram in the utility model specific embodiment scheme; Fig. 3 is the intake manifold channel cross-section structural drawing in the utility model specific embodiment scheme; Fig. 4 is the gasoline engines side view in the utility model specific embodiment scheme; Fig. 5 is the left view of Fig. 4; Fig. 6 is the right elevation of Fig. 4; Fig. 7 is the passage curvature schematic diagram of the intake manifold in the utility model specific embodiment scheme.
In a kind of specific embodiment scheme, the utility model provides a kind of gasoline engines, comprises intake manifold and variable-length mechanism 1.Wherein, intake manifold is provided with air outlet 163, long tube entrance 161 and short tube entrance 162, and the passage length of long tube entrance dip distance air outlet 163 is greater than the passage length of short tube entrance 162 apart from air outlet 163.Variable-length mechanism 1 comprises solenoid valve 2, final controlling element 4, rotating shaft 7 and multiple valve block 5, valve block 5 to be connected in rotating shaft 7 and to lay respectively at short tube entrance 162 place of each intake manifold, final controlling element 4 connection rotating shaft 7 and rotating shaft 7 can be driven to rotate, solenoid valve 2 can accept the signal of control unit of engine and control final controlling element 4 action, the pressure stabilizing cavity 13 of intake manifold is successively by the 3rd vacuum hose 33, three-way valve 15 and the first vacuum hose 31 are communicated in the vacuum chamber 14 of intake manifold, vacuum chamber 14 is successively by three-way valve 15, soft 32 pipes of second vacuum, solenoid valve 2 and the 4th vacuum hose 34 are communicated in final controlling element 4.
Concrete, this variable-length mechanism 1 also comprises bearing 6, and bearing 6 to be sheathed in rotating shaft 7 and to be installed on the both sides of intake manifold, rotates for supporting revolving shaft 7.Valve block 5 is connected in rotating shaft 7, and keeps default setting angle, to control the opening and closing of the short tube entrance 162 of intake manifold when using, and the adjustment of the flow coefficient realizing valve block 5 both sides that can rotate a certain angle in company with rotating shaft 7.Final controlling element 4 is connected with rotating shaft 7 by driving mechanism 17, and its effect is under the effect of vacuum power, drive rotating shaft 7 and valve block 5 to rotate.The effect of solenoid valve 2 is the signals receiving control unit of engine, and performs make-break operation according to signal, to make communication between vacuum chamber 14 and final controlling element 4 or disconnection, thus controls vacuum power to the effect of final controlling element 4.
It should be noted that, variable-length mechanism 1 in this programme also comprises four vacuum hoses and a three-way valve 15, be respectively the first vacuum hose 31, second vacuum hose 32, the 3rd vacuum hose 33 and the 4th vacuum hose 34, one end of 3rd vacuum hose 33 is communicated in the pressure stabilizing cavity 13 of intake manifold, the other end is connected to three-way valve 15, three-way valve 15 is communicated in the vacuum chamber 14 of intake manifold again by the first vacuum hose 31, three-way valve 15 is also communicated in solenoid valve 2 by the second vacuum hose 32, and solenoid valve 2 is communicated in final controlling element 4 by the 4th vacuum hose 34.The vacuum power of vacuum chamber 14 can be passed to final controlling element 4 place together with under the acting in conjunction of three-way valve 15 and solenoid valve 2 by four vacuum hoses, thus actuate actuators 4 works.
Wherein, the concrete structure of final controlling element 4 is common mechanism well known by persons skilled in the art in prior art, can realize receiving vacuum power and producing axial straight reciprocating motion, as shown in Figure 2, through the transmission of driving mechanism 17, utilize connecting rod to add curved shaft type driving mechanism and the rotation of the transform linear motion of final controlling element 4 for rotating shaft 7, the opening and closing of valve block 5 can be realized.
The working procedure of the gasoline engines that the utility model provides is as follows:
This intake manifold body is furnished with pressure stabilizing cavity 13, communicate with the 3rd vacuum hose 33, for exporting certain vacuum power, this vacuum power arrives by three-way valve 15 and the first vacuum hose 31 vacuum chamber 14 that intake manifold is arranged, and makes to remain certain degree of vacuum in this vacuum chamber 14.
When after the signal that solenoid valve 2 receives from control unit of engine, solenoid valve 2 action can be driven, connect the path between vacuum chamber 14 and final controlling element 4, vacuum power can pass through the first vacuum hose 31 successively simultaneously, three-way valve 15, second vacuum hose 32, solenoid valve 2 and the 4th vacuum hose 34 arrive final controlling element 4 place, final controlling element 4 produces axial motion under the effect of vacuum power, and be the rotary motion of rotating shaft 7 together with valve block 5 by driving mechanism 17 by transform linear motion, valve block 5 turns over different angles in rotary course, thus the opening and closing realized intake manifold short tube entrance 162, and then realize the long tube of intake manifold and the switching of short tube two kinds work air flue.Concrete, when control unit of engine send signal demand be switched to short tube air inlet time, valve block 5 opens short tube entrance 162, and the air in pressure stabilizing cavity 13 just directly can enter into gas-entered passageway 16 from short tube entrance 162; When control unit of engine send signal demand be switched to long tube air inlet time, valve block 5 closes short tube entrance 162, and the air in pressure stabilizing cavity 13 just enters into gas-entered passageway 16 from long tube entrance 161.
It should be noted that, when designed engines, should according to the demand of car load, the middle and slow speed of revolution of motor and high-revolving performance are balanced and taken into account.For this reason, the flow coefficient of each passage of intake manifold and air inlet crushing this also can balance according to the demand of engine performance contradiction.At this, this programme is according to the requirement of engine power performance, and by the maximum open angle scope design of valve block 5 between 50 ° ~ 60 °, the cross-section area of valve block 5 is 670 ~ 680mm
2, rotating shaft 7 is passed from the position of 2/3 of valve block 5, and the flow coefficient allocation proportion of valve block 5 both sides is A:B=8:2 (A side and the B side of valve block 5 both sides have been shown in Fig. 3).When valve block 5 is in closed condition, the long tube of intake manifold is in service aisle, and now peak rate of flow coefficient is 0.75; When valve block 5 is in open mode, the short tube of intake manifold is in groundwork passage, and its flow coefficient is not less than 0.8.Setting like this, it will be more reasonable that the flow coefficient at short tube entrance 162 place distributes.
It should be noted that, in order to avoid the mutual interference of air inlet between cylinder, in fuel injection engine, be usually provided with pressure stabilizing cavity 13, the size of pressure stabilizing cavity 13 has a great impact for the vibration frequency of air-flow in intake manifold.The volume of pressure stabilizing cavity 13 is preferably designed to 800 ~ 1200ml by this programme, to ensure the intake uniformity of each passage of intake manifold.
It should be noted that, the intake manifold in this programme is provided with multiple gas-entered passageway, concrete, is provided with 4 gas-entered passageways in the present embodiment.The utility model calculates (mainly calculating according to the principle of reflection of intake pressure wave and the active length of Cam Profile) according to the matching theory of distribution device, be between 560 ~ 620mm by the Design of length of each gas-entered passageway, passage adopts unequal section design, the designing requirement of equivalent diameter is between Φ 30 ~ 32mm, setting like this, fluctuation effect in intake manifold can be made full use of to improve the charging efficiency of motor, finally realize the high performance output of motor.
Concrete, the sectional shape of the intake manifold in the present embodiment scheme refers to Fig. 3, the radius of curvature of the passage of intake manifold refers to Fig. 7, preferably, in the present embodiment scheme, the radius of curvature of the long tube entrance 161 of intake manifold is R=60mm, and the radius of curvature of the short tube entrance 162 of intake manifold is R=36mm.After long tube and short tube converge, successively by the passage of R55.6, R491.9, R200.6, arrive cylinder head entrance.
In addition, this intake manifold body is also furnished with air inlet pressure sensor interface 8, EGR interface and pipeline 9, vacuum servo interface tube 10, carbon pipe control valve interface 11 and Pcv valve interface 12, the position of each interface refers to Fig. 4 to Fig. 6.The layout of these interfaces and pipeline and original intake manifold is similar, so place repeats no more.
This programme is undertaken designing drawing by the method for theory calculate, software analysis and stand test, namely first some parameters are obtained by theory calculate, such as length, caliber and pressure stabilizing cavity volume etc., then verify according to analysis software, finally carry out the result sizing of stand test.
By the matched design with other system, make carry this intake manifold 1.206L motor have the performance index of torque per liter 97.8Nm/L, power per liter 56Kw/L, there is 105.5Nm/2000r/min, the performance level of 118Nm/3200r/min, 114 ~ 118Nm/3200 ~ 4800r/min and 67.5Kw/6000r/min simultaneously.
Visible, intake manifold main body in this programme is integrated with variable-length mechanism 1, and the switching of intake manifold long tube and short tube two kinds of active lengths can be carried out according to the rotating speed of motor, the power stage of motor when the moment of torsion of middle low speed and high rotating speed can be ensured, the emission level of motor can be improved simultaneously and reduce the oil consumption of motor, thus reaching the object of high-performance, low emission and low oil consumption.
The utility model additionally provides a kind of petrol engine, comprises the gasoline engines described in above-mentioned any one.The derivation of the beneficial effect that the derivation of the beneficial effect that this petrol engine produces and above-mentioned gasoline engines bring is substantially similar, therefore repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a gasoline engines, it is characterized in that, comprise intake manifold and variable-length mechanism (1), described intake manifold is provided with air outlet (163), long tube entrance (161) and short tube entrance (162), described long tube entrance (161) is greater than the passage length of described short tube entrance (162) apart from described air outlet (163) apart from the passage length of described air outlet (163), described variable-length mechanism (1) comprises solenoid valve (2), final controlling element (4), rotating shaft (7) and multiple valve block (5), described valve block (5) is connected in described rotating shaft (7) and goes up and lay respectively at each short tube entrance (162) place, described final controlling element (4) connects described rotating shaft (7) and described rotating shaft (7) can be driven to rotate, described solenoid valve (2) can accept the signal of control unit of engine and control described final controlling element (4) action, the pressure stabilizing cavity (13) of described intake manifold is successively by the 3rd vacuum hose (33), three-way valve (15) and the first vacuum hose (31) are communicated in the vacuum chamber (14) of described intake manifold, described vacuum chamber (14) is successively by described three-way valve (15), second vacuum hose (32), described solenoid valve (2) and the 4th vacuum hose (34) are communicated in described final controlling element (4).
2. gasoline engines according to claim 1, is characterized in that, the maximum open angle scope of described valve block (5) is 50 ° ~ 60 °.
3. gasoline engines according to claim 1, is characterized in that, the cross-section area of described valve block (5) is 670 ~ 680mm
2.
4. gasoline engines according to claim 1, is characterized in that, described rotating shaft (7) is passed from 2/3 position of described valve block (5), and the flow coefficient allocation proportion of described valve block (5) both sides is 8:2.
5. gasoline engines according to claim 1, is characterized in that, when described valve block (5) is in closed condition, the long tube of described intake manifold is in service aisle, and now peak rate of flow coefficient is 0.75; When described valve block (5) is in open mode, the short tube of described intake manifold is in groundwork passage, and flow coefficient is not less than 0.8.
6. gasoline engines according to claim 1, is characterized in that, the volume of described pressure stabilizing cavity (13) is 800 ~ 1200ml.
7. gasoline engines according to claim 1, it is characterized in that, the length of each gas-entered passageway (16) of described intake manifold is 560 ~ 620mm, and the equivalent diameter of each described gas-entered passageway (16) is 30 ~ 32mm.
8. gasoline engines according to claim 1, is characterized in that, the radius of curvature of the long tube entrance (161) of described intake manifold is 60mm, and the radius of curvature of the short tube entrance (162) of described intake manifold is 36mm.
9. a petrol engine, is characterized in that, comprises the gasoline engines described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495403.3U CN204175475U (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 |
|---|---|---|---|
| CN201420495403.3U CN204175475U (en) | 2014-08-29 | 2014-08-29 | A kind of gasoline engines and a kind of petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175475U true CN204175475U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420495403.3U Expired - Fee Related CN204175475U (en) | 2014-08-29 | 2014-08-29 | A kind of gasoline engines and a kind of petrol engine |
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| Country | Link |
|---|---|
| CN (1) | CN204175475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234888A (en) * | 2014-08-29 | 2014-12-24 | 力帆实业(集团)股份有限公司 | Gasoline engine intake manifold and gasoline engine |
-
2014
- 2014-08-29 CN CN201420495403.3U patent/CN204175475U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234888A (en) * | 2014-08-29 | 2014-12-24 | 力帆实业(集团)股份有限公司 | Gasoline engine intake manifold and gasoline engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20180829 |