CN101699047A - Variable air volume type air intake branch pipe - Google Patents
Variable air volume type air intake branch pipe Download PDFInfo
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- CN101699047A CN101699047A CN200910228140A CN200910228140A CN101699047A CN 101699047 A CN101699047 A CN 101699047A CN 200910228140 A CN200910228140 A CN 200910228140A CN 200910228140 A CN200910228140 A CN 200910228140A CN 101699047 A CN101699047 A CN 101699047A
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- air intake
- air
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Abstract
The invention relates to variable air volume type air intake branch pipe. Air intake ports communicated with air exhaust pipes are made directly on an intermediate plate in a pressure stabilizing cavity in a way of corresponding to the air exhaust pipes; exchange-over valves are sealed and arranged on the air intake ports; the valve plates of the exchange-over valves are jointly arranged on the same transmission shaft which is driven by a vacuum valve arranged at the input end on the lateral side of the air intake branch pipe to swing; and the vacuum valve is controlled to act by an electromagnetic valve arranged on the lateral side of the intermediate plate of the air intake branch pipe. The electrical control mode adopted in the invention is quick in response, ensures that the most proper air amount is supplied under a corresponding working condition in time, achieves high air volume control accuracy and stability, improves the dynamic property of an engine and increases the air flow rate in a cylinder by improving the air intake speed of the engine at a high rotation speed, so a sub-combustion process is improved and the economy of low-speed fuel oil in the engine is improved.
Description
Technical field
The present invention relates to the intake manifold of motor, especially a kind of variable air volume type air intake branch pipe.
Background technique
The intake manifold of motor has intermittence and periodicity in intake process, cause the pressure wave that produces certain amplitude in the intake manifold, and this pressure wave is propagated in gas handling system with the velocity of sound and past interflection.If form resonator system with the intake manifold of certain-length and diameter and the resonant chamber of a constant volume, and coordinated in the air inlet cycle of its natural frequency and valve, so under specific rotating speed, will be before IC Intake Valve Closes, in intake manifold, produce significantly pressure wave, make the increased pressure of intake manifold, thereby increase air inflow, air inlet fluctuation effect that Here it is.Present intake manifold by last slice, middle sheet, following 1, following 2 constitute, last slice, middle sheet, following 1, following 2 mutual spiral-locks constitute intake manifold, forms intake elbow in intake manifold one side thus; Between middle sheet and following 1, following 2, form pressure stabilizing cavity; On middle sheet, form several mouths of pipe of giving vent to anger, last slice with middle sheet between several passages of formation, the mouth of pipe of giving vent to anger separately during these several passages are communicated with respectively on the sheet, these channel connection pressure stabilizing cavities.Air inflow and intake velocity when running up all is constant to the intake manifold of said structure form to time of engine low speed and motor.
We know that when time of engine low speed, the long intake manifold of this runner can improve intake velocity, has strengthened the inertia of air-flow, and air inflow is increased; And be under the state of running up for motor, this elongated intake manifold can increase intake resistance, and air inflow is reduced, thereby has influenced the performance of motor.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and satisfy variable air volume type air intake branch pipe without engine charge demand under the operating mode by changing air inflow in the unit time.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of variable air volume type air intake branch pipe, by last slice, middle sheet, following 1, following 2 constitute, last slice, middle sheet, following 1, following 2 mutual spiral-locks constitute intake manifold, form intake elbow in intake manifold one side, form pressure stabilizing cavity between middle sheet and following 1, following 2; On middle sheet, form several steam outlet pipes, be shaped on corresponding steam outlet pipe on the middle sheet in pressure stabilizing cavity and be shaped on several suction ports, last slice and middle sheet between form several passages, these several passages are communicated with steam outlet pipe and suction port separately respectively, it is characterized in that: corresponding each outlet passageway is directly made short mouthful of the air inlet that is communicated with outlet pipe on the middle sheet in pressure stabilizing cavity, changing valve is installed in sealing on the short mouth of air inlet, the valve block of changing valve is installed on the same transmission shaft jointly, this transmission shaft drives rotation by a vacuum valve of installing at the input end of intake manifold side, and vacuum valve is installed in the action of the electromagnetic valve on the sheet side in the intake manifold by one.
And, vacuum chamber is installed in pressure stabilizing cavity, this vacuum chamber is by the import of tracheae connection solenoid valve, and the outlet of this solenoid valve is communicated with another tracheae, and this tracheae is communicated with vacuum valve.
And described valve rod 15 ends at vacuum valve 2 connect a connecting rod, and the other end of this connecting rod installs the transmission shaft of valve block.
And, also be shaped on the cavity stiffening rib on the described pressure stabilizing cavity, intake elbow and be provided with laterally with the pressure stabilizing cavity joint and vertically be connected stiffening rib.
And described intake elbow and steam outlet pipe place all are arranged to flange, and flanged surface is provided with seal groove.
Advantage of the present invention and beneficial effect are:
1, corresponding each outlet passageway is directly made short mouthful of the air inlet that is communicated with outlet pipe on the middle sheet of this intake manifold in pressure stabilizing cavity, on the short mouth of air inlet, the changing valve that is made of valve seat and valve block is installed, the valve block of changing valve is realized upset by a transmission shaft of being installed in the intake manifold outer side, seal or open short mouthful of air inlet with this, realized thus when high engine speeds turns round, changing valve is opened, air directly enters short mouthful of air inlet, the short mouthful intake resistance of the air inlet of this tubbiness is little, air inflow increases, and has realized the air inflow of intake manifold motor under different operating modes.
2, the transmission shaft of this intake manifold adopts vacuum valve to drive, and by being installed in the action of the vacuum chamber employing electromagnetic valve vacuum valve in the pressure stabilizing cavity, changing valve is opened and closed, thereby realize the adjusting of tolerance.Whole manifold structure is simply compact, and does not strengthen the volume of manifold.
3, the automatically controlled mode speed of response of the present invention is fast, can in time guarantee to supply with the air quantity of closing most in corresponding operating mode, the control accuracy height of air quantity, good stability, not only can improve the power character of motor, also strengthened the current rate in the cylinder, thereby improved combustion process, improved the Economy of low speed fuel oil in the motor owing to having improved the intake velocity of motor under high rotating speed.
Description of drawings
Fig. 1 is a form structure plan view of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural representation in the pressure stabilizing cavity that the present invention pulls down after following 1, following 2;
Fig. 5 is the enlarged diagram of Fig. 3;
Fig. 6 is that the A-A of Fig. 4 is to cross section sectional structure enlarged diagram.
Embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of variable air volume type air intake branch pipe, by last slice 8, middle sheet 4, following 15, following 26 constitute, last slice, middle sheet, following 1, following 2 mutual spiral-locks constitute intake manifold, forms intake elbow 7 in intake manifold one side; Between middle sheet and following 1, following 2, form pressure stabilizing cavity; On middle sheet, form several steam outlet pipes 3 (present embodiment is four), be shaped on corresponding steam outlet pipe on the middle sheet in pressure stabilizing cavity and be shaped on several suction ports 18, last slice and middle sheet between form several passages 17, these several passages are communicated with steam outlet pipe and suction port separately respectively.Intake manifold with four passages is example narration embodiments of the invention below:
(1) corresponding each outlet passageway is directly made short mouthful of the air inlet that is communicated with outlet pipe on the middle sheet in pressure stabilizing cavity, on the short mouth of air inlet, be sealed and installed with the changing valve that constitutes by valve seat 9 and valve block 10, each valve block all is installed on the transmission shaft 11 jointly, this transmission shaft is equipped with a connecting rod 16 at the input end of intake manifold side, referring to Fig. 5, this connecting rod is installed on valve rod 15 ends of vacuum valve 2, realizes the rotation of transmission shaft by the push-and-pull of valve rod, with the upset of valve block in valve seat that realizes being installed
(2) transmission shaft of intake manifold adopts vacuum valve to drive, and adopts solenoid valve 1 to control the action of vacuum valve by the vacuum chamber 14 (referring to Fig. 4, being two) that is installed in the pressure stabilizing cavity.Its operating principle is: the vacuum gas in the vacuum chamber is by the import of tracheae 13 connection solenoid valves, and the outlet of this solenoid valve is communicated with another tracheae 12, and this tracheae is communicated with vacuum valve and drives the push pull maneuver of valve rod of vacuum valve.
(3) also be shaped on the cavity stiffening rib on the pressure stabilizing cavity, intake elbow and be provided with laterally with the pressure stabilizing cavity joint and vertically be connected stiffening rib to guarantee its bearing capacity.
(4) intake elbow and steam outlet pipe place all are arranged to flange, and flanged surface is provided with seal groove.
The present invention is by changing the length of intake manifold, can effectively control the inertial flow of charge air flow in intake duct, the flowing pressure wave frequency of air-flow and the frequency of intake valve are coincide under different operating modes in good time, and then at utmost guarantee the air inflow of motor in any operating mode.This manifold essence is the full admission amount that the principle of the middle inertia harmonic wave supercharging of utilization realizes motor.When engine speed was lower than 4400 commentaries on classics, changing valve was inoperative, is closed condition, and the path of air-flow is longer; When engine speed was changeed greater than 4400, changing valve worked, and changing valve is opened, and the path of air-flow is shorter, satisfies the demand of the air quantity of different operating modes like this.In addition, under different water temperatures and rotating speed, intake manifold is opened different apertures, to satisfy the demand of each operating mode air of motor.
Working principle of the present invention is: under same operating mode, different changing valve apertures makes the air-flow velocity that enters motor change, and forms vortex, and eddy current promptly is the vortex that we often say, makes the oil gas mixing of motor reach more abundant.Particularly motor is when cold starting and motor are in low-load, and the atomizing of mixed gas is bad, and it is insufficient to burn, discharge bad, the atomizing level of gasoline when improving low temperature improves the emission level of motor, the emission level of Mazda 6 is reached and surpasses EUROIII Emission Standard.
Working procedure: when water temperature is lower than about 62 degree, and the rotating speed of motor is lower than 3750 when changeing, and the aisle spare of suction tude is reduced; Along with the further raising of water temperature, rotating speed further rises, and the aperture of changing valve is opened fully, and it is maximum that the area of suction tude reaches.As the term suggests it is not by acceleration cable control intake manifold's aperture but utilizes direct current generator to realize automatically by reducing gear.
Function and working procedure: it has the fundamental function of common closure, and its effect is to open the passage of intake manifold on house steward, and different operating modes are opened different apertures, and the closure of general car all is the acceleration cable control that is driven by foot treadle.But the closure of this backguy control has the air inlet hysteresis phenomenon when special operation conditions such as anxious acceleration, that is to say when special operation conditions such as anxious acceleration, the aperture signal of closure is sent by joint institute valve position sensor, but the actual not follow-up in time of air that enters cylinder, and closure to be under the flow perturbation be not very steady, therefore air quantity and unstable is quickened undesirable and unstable.And electronic throttle can be according to throttle position signal, PCM directly drives direct current motor and responds fast, in time closure is opened required aperture, and electronic throttle is under the self-locking action of self reducing gear, can not fluctuate, with the air inflow of assurance motor and stablizing of rotating speed because of the disturbance of air-flow.
Claims (5)
1. variable air volume type air intake branch pipe, by last slice, middle sheet, following 1, following 2 constitute, last slice, middle sheet, following 1, following 2 mutual spiral-locks constitute intake manifold, form intake elbow in intake manifold one side, form pressure stabilizing cavity between middle sheet and following 1, following 2; On middle sheet, form several steam outlet pipes, be shaped on corresponding steam outlet pipe on the middle sheet in pressure stabilizing cavity and be shaped on several suction ports, last slice and middle sheet between form several passages, these several passages are communicated with steam outlet pipe and suction port separately respectively, it is characterized in that: corresponding each outlet passageway is directly made short mouthful of the air inlet that is communicated with outlet pipe on the middle sheet in pressure stabilizing cavity, changing valve is installed in sealing on the short mouth of air inlet, the valve block of changing valve is installed on the same transmission shaft jointly, this transmission shaft drives rotation by a vacuum valve of installing at the input end of intake manifold side, and vacuum valve is installed in the action of the electromagnetic valve on the sheet side in the intake manifold by one.
2. variable air volume type air intake branch pipe according to claim 1 is characterized in that: vacuum chamber is installed in pressure stabilizing cavity, and this vacuum chamber is by the import of tracheae connection solenoid valve, and the outlet of this solenoid valve is communicated with another tracheae, and this tracheae is communicated with vacuum valve.
3. variable air volume type air intake branch pipe according to claim 1 is characterized in that: described valve rod 15 ends at vacuum valve 2 connect a connecting rod, and the other end of this connecting rod installs the transmission shaft of valve block.
4. variable air volume type air intake branch pipe according to claim 1 is characterized in that: also be shaped on the cavity stiffening rib on the described pressure stabilizing cavity, intake elbow and be provided with laterally with the pressure stabilizing cavity joint and vertically be connected stiffening rib.
5. variable air volume type air intake branch pipe according to claim 1 is characterized in that: described intake elbow and steam outlet pipe place all are arranged to flange, and flanged surface is provided with seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910228140A CN101699047A (en) | 2009-11-10 | 2009-11-10 | Variable air volume type air intake branch pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910228140A CN101699047A (en) | 2009-11-10 | 2009-11-10 | Variable air volume type air intake branch pipe |
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| CN101699047A true CN101699047A (en) | 2010-04-28 |
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| CN200910228140A Pending CN101699047A (en) | 2009-11-10 | 2009-11-10 | Variable air volume type air intake branch pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536548A (en) * | 2012-02-27 | 2012-07-04 | 长城汽车股份有限公司 | Air intake control device of engine and engine therewith |
| CN103089396A (en) * | 2013-01-31 | 2013-05-08 | 长城汽车股份有限公司 | Motor air inlet vortex vane driving connecting mechanism |
| CN103439101A (en) * | 2013-08-29 | 2013-12-11 | 长城汽车股份有限公司 | Intake manifold performance detection device and detection method |
| WO2017143633A1 (en) * | 2016-02-26 | 2017-08-31 | 江苏大学 | Combined air inlet system and method for rotor engine with variable air inlet pipe |
-
2009
- 2009-11-10 CN CN200910228140A patent/CN101699047A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536548A (en) * | 2012-02-27 | 2012-07-04 | 长城汽车股份有限公司 | Air intake control device of engine and engine therewith |
| CN103089396A (en) * | 2013-01-31 | 2013-05-08 | 长城汽车股份有限公司 | Motor air inlet vortex vane driving connecting mechanism |
| CN103089396B (en) * | 2013-01-31 | 2015-03-11 | 长城汽车股份有限公司 | Motor air inlet vortex vane driving connecting mechanism |
| CN103439101A (en) * | 2013-08-29 | 2013-12-11 | 长城汽车股份有限公司 | Intake manifold performance detection device and detection method |
| CN103439101B (en) * | 2013-08-29 | 2016-05-04 | 长城汽车股份有限公司 | Inlet manifold device for detecting performance and detection method |
| WO2017143633A1 (en) * | 2016-02-26 | 2017-08-31 | 江苏大学 | Combined air inlet system and method for rotor engine with variable air inlet pipe |
| US10364778B2 (en) | 2016-02-26 | 2019-07-30 | Jiangsu University | Composite intake system and method of the rotary engine with variable intake manifold |
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Open date: 20100428 |