CN201531339U - Variable intake cross-section mechanism of engine intake manifold - Google Patents
Variable intake cross-section mechanism of engine intake manifold Download PDFInfo
- Publication number
- CN201531339U CN201531339U CN2009201647013U CN200920164701U CN201531339U CN 201531339 U CN201531339 U CN 201531339U CN 2009201647013 U CN2009201647013 U CN 2009201647013U CN 200920164701 U CN200920164701 U CN 200920164701U CN 201531339 U CN201531339 U CN 201531339U
- Authority
- CN
- China
- Prior art keywords
- intake manifold
- control
- engine
- video disc
- air inlet
- 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 - Lifetime
Links
Images
Classifications
-
- 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
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
A variable intake cross-section mechanism of an engine intake manifold comprises an overturn dish type valve, an actuating mechanism and a signal control mechanism, wherein the overturn dish type valve is arranged on the engine intake manifold and connected in one of twin inlets of all engine cylinder heads, the actuating mechanism is used for controlling opening and closing of the dish type valve, the signal control mechanism is used for receiving a control signal of an engine control unit and controlling the actuating mechanism to act, and the actuating mechanism receives a control command of the engine control unit and converts the control command into an action for controlling the opening and closing of the dish type valve. The utility model adopts the design that the twin inlets are arranged on the connecting end between the intake manifold and the cylinder head, and the intake through flow interface can be adjusted by ECU according to the operating condition of the engine. When in low speed, one inlet is closed, thus leading the flow to keep a higher flow rate, and ensuring that the fuel oil is fully atomized and mixed; and when in high speed, the two inlets are both opened, and the gas flow resistance is small. The system can effectively improve the low speed performance, the economical efficiency of the fuel oil, and the idling stability of the engine, and reduce the emission, and simultaneously the high speed performance is not affected.
Description
Technical field
The utility model relates to power equipment, particularly air inlet cross section control mechanism in the engine aspirating system.
Background technique
Hyundai Motor in order further to improve the performance of petrol engine, has carried out many improvement to the structure of gas handling system after adopting electric control fuel oil jet system.For taking into account high speed performance and middle low-speed performance, the variable air inlet technology has appearred.The mode of variable air inlet mechanism mainly contains: change valve lift, change port timing, change pressure stabilizing cavity volume on the intake manifold, change intake manifold length, change the intake manifold flow area.But shortcomings such as all there is complex structure in the various mechanisms that realize variable air inlet at present, reliability is low, manufacturing process is complicated, cost height.
Summary of the invention
The utility model provides a kind of variable air inlet cross section mechanism of engine intake manifold, adopt the switching of an intake duct in the butterfly valve control twin-inlet, select suitable air inflow according to engine operating condition, solve complex structure in the prior art, the low high technical problem of cost that reaches of reliability.
The utility model is arranged at engine intake manifold and connects dish formula valve that air flue is interior in each cylinder head twin-inlet of motor for the variable air inlet cross section mechanism (PDA) that the engine intake manifold that provides is provided comprises, control the control system of this dish formula valve opening and closing.Described dish formula valve is convertible valve, and this dish formula valve comprises video disc, and by the trip shaft at video disc center, described trip shaft is fixed in the air flue of intake manifold by the bearing housing at two ends, and described control system drives trip shaft and rotates.
Further improvement of the utility model is: described control system comprises actuator and SC sigmal control mechanism, the control signal of described SC sigmal control mechanism's reception control unit of engine (ECU) and control executing mechanism action, described actuator accepts the control unit of engine control command, and control command is converted into the action of control dish formula valve opening and closing.Described SC sigmal control mechanism comprises solenoid valve and vacuum actor, and described vacuum actor connects the vacuum chamber of intake manifold, control unit of engine control electromagnetic valve break-make, and solenoid valve connects the vacuum passage between vacuum actor and the air-distributor vacuum chamber.Described actuator comprises the cylinder lever connecting rod that connects vacuum actor, be hinged with the quantity crank identical on this cylinder lever connecting rod with the cylinder number, the other end of this crank connects the trip shaft of dish formula valve, and the video disc rotary movement of control dish formula valve, described crank is subjected to cylinder lever connecting rod control around rotating with the video disc connecting end.
Of the present utility model further the improvement again is: be connected by the hole axle between described crank and the video disc trip shaft; Described crank is provided with square shaft, and video disc upset axle head is provided with the square hole that cooperates with this square shaft; Perhaps described video disc upset axle head is provided with the square shaft of projection, and crank is provided with the square hole that cooperates with this square shaft.
Of the present utility model further the improvement is: this variable air inlet cross section mechanism also includes the limting mechanism of restriction video disc rotation angle, described limting mechanism comprises that being located at cylinder lever connecting rod is connected two limiting stoppers of rod surface with outstanding this of vacuum actor connecting end, the fixing frame of described vacuum actor is provided with outstanding position block, and this position block is between above-mentioned two limiting stoppers.Perhaps described limting mechanism comprises the restraining groove of the open annular that is located at the bearing housing endoporus, and described video disc trip shaft outer surface is provided with the positive stop of projection, and described positive stop is embedded in the described restraining groove.
The utility model directly by ECU control, is regulated the through-flow interface of air inlet size according to engine operating condition (rotating speed) voluntarily.Intake manifold and the design of cylinder cap connecting end double air passage during low speed, are closed an air flue air inlet passage section and are reduced, and make air-flow keep higher flow velocity, guarantee atomizing fuel oil, mixing; During high speed, air flue full admission passage section is big, and the gas flow resistance is little, volumetric efficiency η v height.PDA mechanism effectively improves low-speed performance when not influencing high speed performance: the discharging when raising engine fuel Economy, the engine idle speed stability of improving, reduction low engine speed low-load.
Description of drawings
Fig. 1 is the structural representation of the utility model engine intake manifold variable air inlet cross section mechanism;
Fig. 2 is the explosive view of butterfly valve rotating mechanism;
Fig. 3 is the stereogram of butterfly valve.
Embodiment
Describe specific embodiment of the utility model in detail in conjunction with above-mentioned accompanying drawing.
By among Fig. 1 as can be known, the variable air inlet cross section mechanism of this engine intake manifold comprises that being arranged at engine intake manifold connects in each cylinder head twin-inlet of motor dish formula valve in the air flue, controls the control system of this dish formula valve opening and closing.Described dish formula valve is convertible valve, and this dish formula valve comprises video disc, and by the trip shaft at video disc center, described trip shaft is fixed in the air flue of intake manifold by the bearing housing at two ends, and described control system drives trip shaft and rotates.PDA mechanism in the utility model controls the air inlet speed of motor under the low speed load by the butterfly valve in the intake manifold.Because under the low speed load, the fresh air quantity that motor needs is less, do not having under the PDA mechanism, two air flue air inlets simultaneously, it is very severe that engine air throttle need be closed, therefore less by the gas flow rate behind the throttle body, cause the interior air motion of cylinder not good, and after adopting PDA mechanism, under the low engine speed load, by butterfly valve in the PDA mechanism, appropriateness is closed one of them air flue air inlet, and only use an air flue air inlet, therefore engine air throttle does not need to close bigger angle, improved the engine charge flow velocity, after in air-flow enters cylinder, can produce stronger eddy current along casing wall, eddy current is accompanied by descent of piston, when piston drives to the up stage after bottom dead center, strength of vortex strengthens fast in the cylinder, when piston stroking upward was near top dead center, eddy current was by piston extruding collapse in the cylinder, and eddy current converts the more very high turbulent flow of intensity to, strengthen propagation of flame speed greatly, thereby the rate of burning of increasing sharply promotes the performance of motor under the low speed load, improves fuel economy; Simultaneously because the lifting of combustion performance, engine emission also there is to a certain degree improvement.
Described control system comprises actuator and SC sigmal control mechanism, described SC sigmal control mechanism receives the control signal and the control executing mechanism action of control unit of engine, described actuator accepts the control unit of engine control command, and control command is converted into the action of control dish formula valve opening and closing.Described SC sigmal control mechanism comprises solenoid valve and vacuum actor, and described vacuum actor connects the vacuum chamber 21 of intake manifold, control unit of engine control electromagnetic valve break-make, and solenoid valve connects the vacuum passage between vacuum actor and the air-distributor vacuum chamber.One section of being connected with cylinder cap of intake manifold is divided into two air flues, is provided with the rotating butterfly valve 2 of control air flue switch therein in air flue.The suction port of cylinder cap is divided into two air flues corresponding with intake manifold.Directly by control unit of engine ECU control, ECU gives solenoid valve 9 energising/outages according to engine operating condition (rotating speed) in this PDA mechanism.During low speed, ECU gives solenoid valve 9 energisings, the vacuum passage that solenoid valve 9 is communicated with between vacuum actor 7 and air-distributor vacuum chamber, and vacuum actor 7 drives the butterfly valve close synchronously that actuator 11 makes four air flues; When motor reaches certain rotating speed, ECU gives solenoid valve 9 outages, solenoid valve 9 makes vacuum passage disconnect again, vacuum actor 7 is communicated with atmosphere, vacuum actor 7 drives actuator 11 makes the butterfly valve of four air flues recover initial full-gear, and vacuum actor 7 is fixed on the intake manifold by vacuum actor support 8.
Described actuator comprises the cylinder lever connecting rod that connects vacuum actor, be hinged with the quantity crank identical on this cylinder lever connecting rod with the cylinder number, the other end of this crank connects the trip shaft of dish formula valve, and the video disc rotary movement of control dish formula valve, described crank is subjected to cylinder lever connecting rod control around rotating with the video disc connecting end.Be connected by the hole axle between described crank and the video disc trip shaft; Described crank is provided with square shaft, and video disc upset axle head is provided with the square hole that cooperates with this square shaft; Perhaps described video disc upset axle head is provided with the square shaft of projection, and crank is provided with the square hole that cooperates with this square shaft.Actuator of the present utility model comprises: cylinder lever connecting rod 6, crank 3, bearing cap 5, seal ring 4, butterfly valve 2, bearing housing 1.Cylinder lever connecting rod 6 is I-shaped plastic rod, reduces material when satisfying function requirement, saves cost, and cylinder lever connecting rod 6 is connected with the mode of crank 3 with ball-and-socket, drives butterfly valve 2 synchronous switches of four air flues.
This variable air inlet cross section mechanism also includes the limting mechanism of restriction video disc rotation angle, described limting mechanism comprises that being located at cylinder lever connecting rod is connected two limiting stoppers of rod surface with outstanding this of vacuum actor connecting end, the fixing frame of described vacuum actor is provided with outstanding position block, and this position block is between above-mentioned two limiting stoppers.Perhaps described limting mechanism comprises the restraining groove of the open annular that is located at the bearing housing endoporus, and described video disc trip shaft outer surface is provided with the positive stop of projection, and described positive stop is embedded in the described restraining groove.The limiting stopper 12 that I-shaped design of cylinder lever connecting rod 6 heads and vacuum actor support 8 stretch out, acting in conjunction play the effect that limits butterfly valve opening and protection vacuum actor 7.Bearing housing 4 embeds gas port with the form that key connects, and low cost has further been emphasized in its loss of weight design.A bearing sky of bearing housing 4 is provided with limiting stopper 13, plays the effect of restriction butterfly valve opening jointly with block 14 on the butterfly valve, has further improved the reliability of PDA mechanism.
Also be provided with positioning means between described crank and the video disc trip shaft, comprise the key that is arranged in the trip shaft endoporus, be arranged at the keyway of crank connecting end.Butterfly valve 2 central ports are provided with key 17 and cooperate with keyway 18 on the crank.Square shaft cooperates and key cooperates, and prevents that effectively butterfly valve 2 from rotating relative to axle, improves the life-span that reliability guarantees part simultaneously.Thrust ring 19 plays the effect that prevents the butterfly valve axial rotation with block 14.Notch 20 design of butterfly valve 2 makes that venturi effect is better, burning is more stable.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. the variable air inlet cross section mechanism of an engine intake manifold, it is characterized in that: this mechanism comprises that being arranged at engine intake manifold connects dish formula valve that air flue is interior in each cylinder head twin-inlet of motor, control the control system of this dish formula valve opening and closing, described dish formula valve is convertible valve, this dish formula valve comprises video disc, trip shaft by the video disc center, described trip shaft is fixed in the air flue of intake manifold by the bearing housing at two ends, and described control system drives trip shaft and rotates.
2. according to the variable air inlet cross section mechanism of the described engine intake manifold of claim 1, it is characterized in that: described control system comprises actuator and SC sigmal control mechanism, described SC sigmal control mechanism receives the control signal and the control executing mechanism action of control unit of engine, described actuator accepts the control unit of engine control command, and control command is converted into the action of control dish formula valve opening and closing.
3. according to the variable air inlet cross section mechanism of the described engine intake manifold of claim 2, it is characterized in that: described SC sigmal control mechanism comprises solenoid valve and vacuum actor, described vacuum actor connects the vacuum chamber of intake manifold, control unit of engine control electromagnetic valve break-make, solenoid valve connects the vacuum passage between vacuum actor and the air-distributor vacuum chamber.
4. according to the variable air inlet cross section mechanism of the described engine intake manifold of claim 2, it is characterized in that: described actuator comprises the cylinder lever connecting rod that connects vacuum actor, be hinged with the quantity crank identical on this cylinder lever connecting rod with the cylinder number, the other end of this crank connects the trip shaft of dish formula valve, and the video disc rotary movement of control dish formula valve, described crank is subjected to cylinder lever connecting rod control around rotating with the video disc connecting end.
5. according to the variable air inlet cross section mechanism of the described engine intake manifold of claim 4, it is characterized in that: be connected by the hole axle between described crank and the video disc trip shaft; Described crank is provided with square shaft, and video disc upset axle head is provided with the square hole that cooperates with this square shaft; Perhaps described video disc upset axle head is provided with the square shaft of projection, and crank is provided with the square hole that cooperates with this square shaft.
6. according to the variable air inlet cross section mechanism of each described engine intake manifold in the claim 1 to 4, it is characterized in that: this variable air inlet cross section mechanism also includes the limting mechanism of restriction video disc rotation angle.
7. according to the variable air inlet cross section mechanism of the described engine intake manifold of claim 6, it is characterized in that: described limting mechanism comprises that being located at cylinder lever connecting rod is connected two limiting stoppers of rod surface with outstanding this of vacuum actor connecting end, the fixing frame of described vacuum actor is provided with outstanding position block, and this position block is between above-mentioned two limiting stoppers.
8. according to the variable air inlet cross section mechanism of the described engine intake manifold of claim 6, it is characterized in that: described limting mechanism comprises the restraining groove of the open annular that is located at the bearing housing endoporus, described video disc trip shaft outer surface is provided with the positive stop of projection, and described positive stop is embedded in the described restraining groove.
9. according to the variable air inlet cross section mechanism of the described engine intake manifold of claim 5, it is characterized in that: also be provided with positioning means between described crank and the video disc trip shaft, comprise the key that is arranged in the trip shaft endoporus, be arranged at the keyway of crank connecting end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201647013U CN201531339U (en) | 2009-09-29 | 2009-09-29 | Variable intake cross-section mechanism of engine intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201647013U CN201531339U (en) | 2009-09-29 | 2009-09-29 | Variable intake cross-section mechanism of engine intake manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531339U true CN201531339U (en) | 2010-07-21 |
Family
ID=42526743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201647013U Expired - Lifetime CN201531339U (en) | 2009-09-29 | 2009-09-29 | Variable intake cross-section mechanism of engine intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865132A (en) * | 2012-09-29 | 2013-01-09 | 长城汽车股份有限公司 | Airflow control device for inlet manifold |
| KR101501144B1 (en) * | 2013-12-30 | 2015-03-10 | 말레동현필터시스템 주식회사 | Lever mechanism for valve in intake manifold |
-
2009
- 2009-09-29 CN CN2009201647013U patent/CN201531339U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865132A (en) * | 2012-09-29 | 2013-01-09 | 长城汽车股份有限公司 | Airflow control device for inlet manifold |
| CN102865132B (en) * | 2012-09-29 | 2015-05-27 | 长城汽车股份有限公司 | Airflow control device for inlet manifold |
| KR101501144B1 (en) * | 2013-12-30 | 2015-03-10 | 말레동현필터시스템 주식회사 | Lever mechanism for valve in intake manifold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106285966A (en) | For the engine braking methods that vehicle is slow | |
| CN101943094A (en) | Variable air inlet section mechanism of engine air inlet manifold | |
| CN102536548A (en) | Air intake control device of engine and engine therewith | |
| CN201531339U (en) | Variable intake cross-section mechanism of engine intake manifold | |
| RU2361093C2 (en) | Internal combustion engine | |
| CN105736198A (en) | Rotor engine compound air inlet system with variable air inlet pipe and method | |
| CN202325824U (en) | Regulation mechanism for variable vortex intake manifold of automobile engine | |
| CN201531322U (en) | Engine air intake duct structure | |
| CN201934229U (en) | Double-tangential air inlet passage of four-valve cylinder diesel engine | |
| CN202946255U (en) | Cylinder end air passage structure | |
| CN204386747U (en) | A kind of plug-type engine charge control gear | |
| CN201568152U (en) | Air-passage structure of gasoline direct injection engine | |
| CN101666262A (en) | Controllable swirl air passage | |
| CN205559057U (en) | Layered scavenging two -stroke engine | |
| CN104763539A (en) | Method for improving air movement in natural gas engine cylinder | |
| CN101769205A (en) | Vehicle engine | |
| CN101397921B (en) | Electric driving fully variable valve actuator for air-powered engine | |
| CN201133287Y (en) | High-speed diesel electronic control vortex flow continuously variable mechanical device | |
| CN103233808A (en) | Engine | |
| CN202348463U (en) | Air inlet passage and cylinder cover combustion chamber of turbocharged direct injection gasoline engine | |
| CN202628285U (en) | Low-consumption high-efficiency engine assembly | |
| CN201474788U (en) | Engine air intake structure | |
| CN201696171U (en) | Negative-pressure adjusting type air inlet system | |
| CN201714521U (en) | Air inlet manifold of engine | |
| CN204851425U (en) | Turbocharging system and turbocharging auxiliary device adopted by same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |