CN101457677B - Valve variable valve mechanism - Google Patents
Valve variable valve mechanism Download PDFInfo
- Publication number
- CN101457677B CN101457677B CN2008102462495A CN200810246249A CN101457677B CN 101457677 B CN101457677 B CN 101457677B CN 2008102462495 A CN2008102462495 A CN 2008102462495A CN 200810246249 A CN200810246249 A CN 200810246249A CN 101457677 B CN101457677 B CN 101457677B
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- Prior art keywords
- rocking arm
- arm
- level
- valve
- control
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Classifications
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- 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
Abstract
The invention provides a changeable valve air distribution mechanism applied to the field of an automobile engine. The changeable valve air distribution mechanism comprises a first stage rocker arm (2), a second stage rocker arm (5), a hydraulic tappet (6), a valve (7), a control rocker arm (1), a rotating arm (3) and springs (4), wherein, a first stage rocker arm (2) body is designed to be in the shape of a reversed V, the rotating arm (3) is connected with the first stage rocker arm (2), the springs (4) are arranged between the first stage rocker arm (2) and the rotating arm (3), and the control rocker arm (1) is connected with the first stage rocker arm (2). The technical scheme of the invention has the advantages that: 1. the valve lift can be completely changeable, and the engine performance is obviously improved; 2. the output volume and the oil consumption are obviously lower than that of the engine with the same output volume; 3. the structure is simple and compact, the designis reasonable, and the overall volume of the engine is not obviously changed; and 4. a throttle valve is canceled, thereby avoiding the pumping loss of an engine.
Description
Technical field
The present invention relates to the motor car engine field, more particularly, the present invention relates to a kind of valve variable valve mechanism.
Background technique
Because the existence of petrol engine closure, make motor exist bigger pumping loss, especially when sub load, this loss will influence the performance index of motor to a great extent, therefore the method that many cancellation closures are controlled the petrol engine load occurs, full variable valve actuating mechanism can change valve lift according to engine load, rotating speed.For the instantaneous operating mode of motor provides best air inflow, give full play to engine performance.At present, existing in the world minority automobile vendor has realized the complete variable technology of this valve lift.Along with the development of advanced engine technology, motor of new generation will replace advanced at present motor after the 3-5, and the complete variable technology of this valve lift must become the standard configuration of alternate-engine.But present full variable valve actuating mechanism adopts the mechanism that increases the one-level rocking arm to come lift is realized variable entirely, such mechanism kinematic complexity more, has increased the movement parts quantity of entire mechanism, has also increased the friction of motor simultaneously.
Summary of the invention
A kind of valve variable valve mechanism of the present invention, its technical problem to be solved is: at the defective of existing valve distribution mechanism, provide a kind of simple in structure, compact, reduce pumping loss, can realize the full variable valve actuating mechanism of response fast, the motor overall volume does not have the valve variable valve mechanism of obvious change.
For solving above technical problem, the technical solution used in the present invention is:
The present invention is a kind of valve variable valve mechanism, comprise the one-level rocking arm, secondary rocking arm, hydraulic tappet, valve, described valve variable valve mechanism also comprises control rocking arm, pivoted arm, spring, described one-level rocking arm body is set to reverse V-shaped structure, described pivoted arm is connected with the one-level rocking arm, and described spring is installed between one-level rocking arm and the pivoted arm, and described control rocking arm is connected with the one-level rocking arm.
Described control rocking arm comprises control rocking arm journal shaft, control rocking arm running shaft, described control rocking arm is set to the U font structure, and U font bottom position is connected with two rocking arm ends of the U font of control rocking arm for control rocking arm running shaft, described control rocking arm journal shaft.
Two control rocking arm journal shaft of described control rocking arm all become vertical angle with control rocking arm side.
Described control rocking arm is controlled by ECU.
The reverse V-shaped structure of described one-level rocking arm is made up of one-level this dignity of rocking arm and one-level rocking arm side, and described one-level rocking arm end is connected with control rocking arm journal shaft by attachment hole.
Described pivoted arm is set to platy structure, and described pivoted arm is connected with the V-structure bottom position of the reverse V-shaped structure of one-level rocking arm by the rotation arm axle that is arranged on its end.
Described spring is arranged on reverse V-shaped this dignity of one-level rocking arm of one-level rocking arm and pivoted arm composition and fits with the face of pivoted arm.
The secondary rocker-arm roller is installed at described secondary rocking arm middle part, and the secondary rocker-arm roller is fitted with the face of reverse V-shaped one-level rocking arm of being made up of one-level rocking arm and pivoted arm and pivoted arm.
Described secondary rocking arm one end contacts with valve; The other end of described secondary rocking arm contacts with hydraulic tappet.
Adopt technological scheme of the present invention, the beneficial effect that it brought mainly comprises:
1, realize that valve lift is variable fully, engine performance significantly improves;
2, discharging, oil consumption are starkly lower than the motor with discharge capacity;
3, simple in structure, compact, reasonable in design, the motor overall volume does not have obvious change;
4, the cancellation closure is avoided the motor pumping loss.
Description of drawings
Make briefly bright to each width of cloth accompanying drawing in this specification expressed content and the mark among the figure below:
Fig. 1 is the structural representation of a kind of valve variable valve mechanism of the present invention;
Fig. 2 is the decomposition texture schematic representation of the full variable valve actuating mechanism of example of the present invention;
Fig. 3 is the positional structure schematic representation of the present invention when being in the high lift position;
Fig. 4 is the structural representation of control rocking arm of the present invention;
Fig. 5 is the structural representation of pivoted arm of the present invention;
Fig. 6 is the structural representation of one-level rocking arm of the present invention;
Fig. 7 is that the present invention is in the structural front view when hanging down lift location;
Be labeled as among the figure: 1, control rocking arm; 2, one-level rocking arm; 3, pivoted arm; 4, spring; 5, secondary rocking arm; 6, hydraulic tappet; 7, valve; 8, control rocking arm running shaft; 9, control rocking arm journal shaft; 10, rotation arm axle; 11, secondary rocker-arm roller; 12, this dignity of one-level rocking arm; 13, control rocking arm side; 14, rocking arm end; 15, one-level rocking arm side.
Embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail embodiment:
As shown in drawings, the present invention is a kind of valve variable valve mechanism, comprises one-level rocking arm 2, the secondary Rocker arm 5, hydraulic tappet 6, valve 7, described valve variable valve mechanism also comprise control rocking arm 1, pivoted arm 3, spring 4, described one-level rocking arm 2 bodies are set to reverse V-shaped structure, and described pivoted arm 3 is connected with one-level rocking arm 2, described spring 4 is installed between one-level rocking arm 2 and the pivoted arm 3, and described control rocking arm 1 is connected with one-level rocking arm 2.
Described control rocking arm 1 comprises control rocking arm journal shaft 8, control rocking arm running shaft 9, described control rocking arm 1 is set to the U font structure, and U font bottom position is connected with two rocking arm ends 14 of the U font of control rocking arm 1 for control rocking arm running shaft 9, described control rocking arm journal shaft 8.
Two of described control rocking arm 1 control rocking arm journal shaft 8 all with control the 13 one-tenth vertical angles in rocking arm side.
Described control rocking arm 1 is controlled by ECU.
The reverse V-shaped structure of described one-level rocking arm 2 is made up of this dignity of one-level rocking arm 12 and one-level rocking arm side 15, and described one-level rocking arm 2 ends are connected with control rocking arm journal shaft 9 by attachment hole.
Described pivoted arm 3 is set to platy structure, and described pivoted arm 3 is connected with the V-structure bottom position of the reverse V-shaped structure of one-level rocking arm 2 by the rotation arm axle 10 that is arranged on its end.
Described spring 4 is arranged on one-level rocking arm 2 and fits with the face of pivoted arm 3 with reverse V-shaped this dignity of one-level rocking arm 12 that pivoted arm 3 is formed.
Secondary rocker-arm roller 11 is installed at described secondary Rocker arm 5 middle part, and secondary rocker-arm roller 11 is fitted with the reverse V-shaped one-level rocking arm of being made up of one-level rocking arm 2 and pivoted arm 32 and the face of pivoted arm 3.
Described secondary Rocker arm 5 one end contacts with valve 7; The other end of described secondary Rocker arm 5 contacts with hydraulic tappet 6.
The principle of distribution device of the present invention mainly is by the deformation quantity of control rocking arm 1 around running shaft 8 rotations change spring 4, thus the camshaft lift difference that one-level rocking arm 2 is transmitted when opening valve, and change valve lift.
When distribution device of the present invention is positioned at low lift location, as shown in Figure 7, this moment, the deformation quantity of spring 4 when the basic circle position was very little, when cam drive one-level rocking arm 2, one-level rocking arm 2 clockwise rotates around control rocking arm journal shaft 9 under action of cam, pivoted arm 3 is rotated counterclockwise around rotation arm axle 10 under the effect of secondary Rocker arm 5 simultaneously, pressure spring 4, when spring 4 is compressed to limit position, the secondary Rocker arm 5 will move under the acting in conjunction of one-level rocking arm 2 and pivoted arm 3, thereby the unlatching valve, promptly cam has in driving the process of valve opening greatly that lift is to be used for pressure spring 4.
When mechanism is positioned at the high lift position, as Fig. 3, control rocking arm 1 and rotated several angle with respect to running shaft 8 this moment, therefore, spring 4 existing bigger deformation quantities when the basic circle position, when cam drive one-level rocking arm 2, spring 4 can't further be compressed and be opened valve with one-level rocking arm 2 acting in conjunction secondary Rocker arm 5s.
Distribution device of the present invention is characterised in that the rotation that utilizes the control rocking arm changes the deformation quantity of spring.
The main actuator of this full variable valve actuating mechanism all is positioned on the valve collet, has avoided whole valve motion mechanism is impacted.
By spring deformation amount control valve opening, make its valve lift variable fully in the 0.7-10mm scope, cancelled closure, avoided pumping loss.
Mechanism is divided into two-step rocker arm, and the acting in conjunction by one-level rocking arm and pivoted arm drives the secondary rocking arm.
A kind of control rocking arm that can rotate around axis is characterized in that spin axis is connected with the one-level rocking arm, by rotation the one-level rocking arm is controlled.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously the concrete realization of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technological scheme to carry out; or design of the present invention and technological scheme are directly applied to other occasions without improving, all in protection scope of the present invention.
Claims (9)
1. valve variable valve mechanism, comprise one-level rocking arm (2), secondary rocking arm (5), hydraulic tappet (6), valve (7), it is characterized in that: described valve variable valve mechanism also comprises control rocking arm (1), pivoted arm (3), spring (4), described one-level rocking arm (2) body is set to reverse V-shaped structure, described pivoted arm (3) is connected with one-level rocking arm (2), and described spring (4) is installed between one-level rocking arm (2) and the pivoted arm (3), and described control rocking arm (1) is connected with one-level rocking arm (2).
2. a kind of valve variable valve mechanism according to claim 1, it is characterized in that: described control rocking arm (1) comprises control rocking arm journal shaft (8), control rocking arm running shaft (9), described control rocking arm (1) is set to the U font structure, U font bottom position is connected with two rocking arm ends (14) of the U font of control rocking arm (1) for control rocking arm running shaft (9), described control rocking arm journal shaft (8).
3. a kind of valve variable valve mechanism according to claim 1 and 2 is characterized in that: two control rocking arm journal shaft (8) of described control rocking arm (1) all become vertical angle with control rocking arm side (13).
4. a kind of valve variable valve mechanism according to claim 1 and 2 is characterized in that: described control rocking arm (1) is controlled by ECU.
5. a kind of valve variable valve mechanism according to claim 1, it is characterized in that: the reverse V-shaped structure of described one-level rocking arm (2) is made up of this dignity of one-level rocking arm (12) and one-level rocking arm side (15), and described one-level rocking arm (2) end is connected with control rocking arm journal shaft (9) by attachment hole.
6. a kind of valve variable valve mechanism according to claim 1, it is characterized in that: described pivoted arm (3) is set to platy structure, and described pivoted arm (3) is connected with the V-structure bottom position of the reverse V-shaped structure of one-level rocking arm (2) by the rotation arm axle (10) that is arranged on its end.
7. a kind of valve variable valve mechanism according to claim 1 is characterized in that: described spring (4) is arranged on one-level rocking arm (2) and fits with the face of pivoted arm (3) with reverse V-shaped this dignity of one-level rocking arm (12) that pivoted arm (3) is formed.
8. a kind of valve variable valve mechanism according to claim 1, it is characterized in that: secondary rocker-arm roller (11) is installed at described secondary rocking arm (5) middle part, and secondary rocker-arm roller (11) is fitted with the reverse V-shaped one-level rocking arm of being made up of one-level rocking arm (2) and pivoted arm (3) (2) and the face of pivoted arm (3).
9. a kind of valve variable valve mechanism according to claim 1 is characterized in that: described secondary rocking arm (5) one ends contact with valve (7); The other end of described secondary rocking arm (5) contacts with hydraulic tappet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102462495A CN101457677B (en) | 2008-12-31 | 2008-12-31 | Valve variable valve mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102462495A CN101457677B (en) | 2008-12-31 | 2008-12-31 | Valve variable valve mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101457677A CN101457677A (en) | 2009-06-17 |
| CN101457677B true CN101457677B (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102462495A Expired - Fee Related CN101457677B (en) | 2008-12-31 | 2008-12-31 | Valve variable valve mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101457677B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713308B (en) * | 2009-09-29 | 2013-01-02 | 奇瑞汽车股份有限公司 | Hydraulic valve mechanism of variable valve lift |
| CN101818708A (en) * | 2010-04-22 | 2010-09-01 | 杨更新 | Electronic fuel injection internal combustion engine without throttle plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463988A (en) * | 1992-04-16 | 1995-11-07 | Audi Ag | Valve actuating mechanism for an internal combustion engine |
| CN1906384A (en) * | 2004-08-31 | 2007-01-31 | 丰田自动车株式会社 | Variable valve operation device |
| CN1914408A (en) * | 2003-12-18 | 2007-02-14 | 丰田自动车株式会社 | Variable valve mechanism |
-
2008
- 2008-12-31 CN CN2008102462495A patent/CN101457677B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463988A (en) * | 1992-04-16 | 1995-11-07 | Audi Ag | Valve actuating mechanism for an internal combustion engine |
| CN1914408A (en) * | 2003-12-18 | 2007-02-14 | 丰田自动车株式会社 | Variable valve mechanism |
| CN1906384A (en) * | 2004-08-31 | 2007-01-31 | 丰田自动车株式会社 | Variable valve operation device |
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| Publication number | Publication date |
|---|---|
| CN101457677A (en) | 2009-06-17 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100908 Termination date: 20201231 |