CN100491709C - Variable air inlet system of engine - Google Patents
Variable air inlet system of engine Download PDFInfo
- Publication number
- CN100491709C CN100491709C CNB2005100302657A CN200510030265A CN100491709C CN 100491709 C CN100491709 C CN 100491709C CN B2005100302657 A CNB2005100302657 A CN B2005100302657A CN 200510030265 A CN200510030265 A CN 200510030265A CN 100491709 C CN100491709 C CN 100491709C
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- resiliently deformable
- annular
- pipeline
- chamber
- pipe
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Abstract
An adjustable engine admission system is capable of automatically adjust the sectional area of the admission pipe and the volume of resonant chamber. It comprises a ring throat in the pipe, elastic inner tube and a ring cavity formed by the inner tube and the pipe inner wall, an elastic board and an elastic cavity formed by the board and the inner wall of the resonant chamber cover. At different engine rotation speed, resonant chamber volume will change with the shape changing of the elastic inner tube and elastic board caused by the vacuum level in the ring cavity and plastic cavity, so to change the admission volume. This invention allows a stable admission rate at any rotation speed.
Description
Technical field
The present invention relates to a kind of engine aspirating system, especially the variable volume intake system of being formed by resonant chamber, air-strainer, closure, variable air inlet pipeline, changing valve, changing valve control mechanism, Motronic control maps control gear.
Background technique
It is exactly this structure that a kind of variable volume intake system is arranged at present.Its structural principle: air enters cylinder through air-strainer, closure along the admission line of curved elongated when time of engine low speed.Changing valve is opened during the high engine speeds running, and air enters cylinder through the admission line that air-strainer, closure enter tubbiness.Its objective is and make motor under low speed still is high-speed case, higher intake velocity be arranged all.This variable volume intake system is just carried out passive coarse adjustment to the length of admission line, its system complex.
Summary of the invention
Task of the present invention provides a kind of can saving and simple variable volume intake system by automatic fine tuning.
For finishing above-mentioned task the solution of the present invention be; Cancel changing valve, changing valve control mechanism, Motronic control maps control gear in its gas handling system.The sectional area that is changed into admission line by the length adjustment of admission line is regulated, because
To when different rotating speeds, automatically change the sectional area of pipeline, make △ p that big constant value be arranged all the time.The structure of this variable volume intake system is: be provided with annular trunnion in its pipeline, the vertical section shape of annular trunnion is to receive flare in mouthful expansion.Be provided with annular chamber at annular trunnion radial outside.Between the annular trunnion annular chamber radial passage is arranged.Also be provided with pipe in the resiliently deformable in the pipeline, in the resiliently deformable outer wall of pipe and inner-walls of duct again with resiliently deformable annular chamber by one-tenth after pipe two is connected with inner-walls of duct in the resiliently deformable.Annular chamber communicates with the resiliently deformable annular chamber through throttle valve.Native system also has a kind of resiliently deformable chamber, and it is made up of resiliently deformable plate and resonance chamber cap inwall, and annular chamber communicates with the resiliently deformable chamber through throttle valve.Be provided with pressure regulator valve, the throttle valve that communicates with it at the annular chamber outer wall, in order to regulate the pressure flow in annular chamber, resiliently deformable annular chamber and resiliently deformable chamber.Working principle of the present invention: when portion of air enters in the annular trunnion, flow through airspeed in the annular trunnion greater than the airspeed of the pipeline central authorities that flow through, with degree of vacuum in the resiliently deformable annular chamber that annular trunnion communicates all the time greater than the degree of vacuum of pipeline central authorities, and along with their speed difference of variation of engine speed and the degree of vacuum difference inside and outside the resiliently deformable inner pipe wall change.In like manner along with the degree of vacuum in the variation resonant chamber resiliently deformable chamber of engine speed also changes simultaneously.Because the increase of the degree of vacuum difference inside and outside the resiliently deformable inner pipe wall increases resiliently deformable inner tube diameter sectional area, in like manner the resonant chamber working chamber volume increases, otherwise then reduces when engine speed increases.Motor is in all sectional areas of energy automatic fine tuning joint admission line of any rotating speed like this, intake velocity is remained on stablize higher state, and motor just has big stable volumetric efficiency like this.
In order to increase the elastic force of pipe in the resiliently deformable, so be provided with spring ring outside the pipe in resiliently deformable, spring ring is fixed on and makes its axially locating on the retainer.The transversal shape of pipe is how stupefied shape in the resiliently deformable.
The present invention is owing to cancelled changing valve, changing valve control mechanism, Motronic control maps control gear, former simple in structure.And the automatic fine tuning of having accomplished variable volume intake system saves.Owing to be under the friction of nothing machinery, to work, so long service life.
Description of drawings
Fig. 1 is the variable air inlet pipeline of a kind of variable air inlet system of engine of embodiment and the elevational cross-sectional view of variable resonant chamber.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
With reference to Fig. 1.It is provided with annular trunnion (8) in pipeline (3), annular trunnion (8) in pipeline (3) by Cock screw (17) positioning and fixing.Pipeline (3) and annular trunnion (8) have seal ring (9) between radially.Its vertical section shape of annular trunnion (8) is to receive flare in mouthful expansion.There is muscle that Internal and external cycle is linked into an integrated entity in the annular trunnion (8).Annular trunnion (8) radial outside is provided with annular chamber.Annular chamber is made up of annular trunnion (8) radial outside circular groove and pipeline (3) inwall, has longitudinal rib that annular chamber is separated into relatively independent loculus in the annular chamber.Between annular trunnion (8) annular chamber radial passage is arranged.It also is provided with in the resiliently deformable pipe (2) in pipeline (3), in the resiliently deformable inwall of the outer wall of pipe (2) and pipeline (3) again with resiliently deformable annular chamber by one-tenth after pipe (2) two is connected with pipeline (3) inwall in the resiliently deformable.It also is horn-like that the interior pipe of resiliently deformable (2) mouth end is horn-like pipeline (3) inwall that connects that is attached thereto, and is pressed in the interior pipe of resiliently deformable (2) mouth by taper piston ring (1) then and makes its sealing.The transversal shape of pipe (2) is how stupefied shape in the resiliently deformable, and purpose is that bigger amount of deformation is arranged.For increasing the elastic force of pipe (2) in the resiliently deformable, pipe (2) outer wall is provided with spring ring (4) in resiliently deformable, and spring ring (4) is fixed on the retainer (14), makes its axially locating.Annular chamber communicates with the resiliently deformable annular chamber through throttle valve (7).It has resonant chamber resiliently deformable chamber in addition, and it is made up of resiliently deformable plate (12) and resonance chamber cap (13) inwall, and annular chamber communicates with the resiliently deformable chamber through throttle valve (18).Resiliently deformable plate (12) is by covering (13) pad (11) through screw (10) fixing seal.Pipe (2) is so be provided with auxiliary hole in the relevant position of pipeline (3) in the resiliently deformable in order installing, and this hole is by the topped fit sealing of cover plate (6) pad (15) screw (5).Be provided with pressure regulator valve (16) throttle valve (7) (18) that communicates with it at the annular chamber outer wall.
Claims (5)
1, a kind of variable air inlet system of engine of being made up of resonant chamber, air-strainer, closure, variable air inlet pipeline is characterized in that: it has cancelled the changing valve in the original system, changing valve control mechanism, Motronic control maps control gear; It is provided with annular trunnion (8) in pipeline (3), its vertical section shape of annular trunnion (8) is to receive flare in mouthful expansion; Annular trunnion (8) radial outside is provided with annular chamber, between annular trunnion (8) annular chamber radial passage is arranged; It also is provided with in the resiliently deformable pipe (2) in pipeline (3), the outer wall and pipeline of pipe (2) in the resiliently deformable. the inwall of (3) again with the resiliently deformable annular chamber of the back one-tenth that is connected with pipeline (3) inwall by pipe (2) two in the resiliently deformable; Annular chamber communicates with the resiliently deformable annular chamber through throttle valve (7); It has resonant chamber resiliently deformable chamber in addition, and it is made up of resiliently deformable plate (12) and resonance chamber cap (13) inwall, and annular chamber communicates with the resiliently deformable chamber through throttle valve (18); Be provided with the pressure regulator valve (16) that communicates with it, throttle valve (7,18) at the annular chamber outer wall.
2, variable air inlet system of engine according to claim 1 is characterized in that: annular trunnion (8) in pipeline (3) by Cock screw (17) positioning and fixing; Pipeline (3) and annular trunnion (8) have seal ring (9) between radially, have muscle that its Internal and external cycle is linked into an integrated entity in the annular trunnion (8); Annular chamber is made up of annular trunnion (8) radial outside circular groove and pipeline (3) inwall, has longitudinal rib that annular chamber is separated into relatively independent loculus in the annular chamber.
3, variable air inlet system of engine according to claim 1 is characterized in that: manage (2) mouthful end in the resiliently deformable and be horn-like, be attached thereto pipeline (3) inwall that connects and also be horn-like, be pressed in the interior pipe of resiliently deformable (2) mouth by taper piston ring (1); The transversal shape of pipe (2) is how stupefied shape in the resiliently deformable; Pipe (2) outer wall is provided with spring ring (4) in resiliently deformable, and spring ring (4) is fixed on the retainer (14).
4, variable air inlet system of engine according to claim 1 is characterized in that: resiliently deformable plate (12) is by covering (13) pad (11) through screw (10) fixing seal.
5, variable air inlet system of engine according to claim 1 is characterized in that: the relevant position at pipeline (3) is provided with auxiliary hole, and this hole is by the topped fit sealing of cover plate (6) pad (15) screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100302657A CN100491709C (en) | 2005-10-08 | 2005-10-08 | Variable air inlet system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100302657A CN100491709C (en) | 2005-10-08 | 2005-10-08 | Variable air inlet system of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1779217A CN1779217A (en) | 2006-05-31 |
| CN100491709C true CN100491709C (en) | 2009-05-27 |
Family
ID=36769663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100302657A Expired - Fee Related CN100491709C (en) | 2005-10-08 | 2005-10-08 | Variable air inlet system of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100491709C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268173B (en) * | 2018-11-14 | 2023-12-19 | 南京工程学院 | Stepless variable air inlet system of internal combustion engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928638A (en) * | 1989-09-12 | 1990-05-29 | Overbeck Wayne W | Variable intake manifold |
| US6408810B1 (en) * | 1999-10-23 | 2002-06-25 | Filterwerk Mann & Hummel Gmbh | Air intake device |
| CN1362578A (en) * | 2001-12-27 | 2002-08-07 | 干方飞 | Air intake system with negative pressure and variable length for internal combustion engine |
| US20040255892A1 (en) * | 2003-06-23 | 2004-12-23 | Siemens Vdo Automotive, Inc. | Passively variable plenum volume for a vehicle intake manifold assembly |
-
2005
- 2005-10-08 CN CNB2005100302657A patent/CN100491709C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928638A (en) * | 1989-09-12 | 1990-05-29 | Overbeck Wayne W | Variable intake manifold |
| US6408810B1 (en) * | 1999-10-23 | 2002-06-25 | Filterwerk Mann & Hummel Gmbh | Air intake device |
| CN1362578A (en) * | 2001-12-27 | 2002-08-07 | 干方飞 | Air intake system with negative pressure and variable length for internal combustion engine |
| US20040255892A1 (en) * | 2003-06-23 | 2004-12-23 | Siemens Vdo Automotive, Inc. | Passively variable plenum volume for a vehicle intake manifold assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1779217A (en) | 2006-05-31 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20111008 |