CN106050349A - Four-direction movable type trapezoidal control device - Google Patents
Four-direction movable type trapezoidal control device Download PDFInfo
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- CN106050349A CN106050349A CN201610550765.1A CN201610550765A CN106050349A CN 106050349 A CN106050349 A CN 106050349A CN 201610550765 A CN201610550765 A CN 201610550765A CN 106050349 A CN106050349 A CN 106050349A
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- Prior art keywords
- connecting tube
- extrusion
- spring
- centrifugal
- ball
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a four-direction movable type trapezoidal control device in the technical field of mechanical design. The four-direction movable trapezoidal control device comprises an executing body, a movable body, a through pipe, a movable block, a pull rod, a control body, a rotating shaft, a centrifugal body, a ball, springs and a stretching body; the movable body is arranged in the executing body; the through pipe is arranged in the movable body; the movable block is arranged in the through pipe; the rotating shaft is fixedly connected with the control body, and is connected with an engine crankshaft through a chain; the first spring, the centrifugal body, the ball, the second spring and the stretching body are all arranged in the control body; and the longitudinal sections of the centrifugal body and the stretching body are both trapezoidal. In the four-direction movable type trapezoidal control device, when the rotating speed of an engine is relatively high, the valve lift is high; and when the rotating speed of the engine is relatively low, the valve lift is relatively small. The four-direction movable type trapezoidal control device is reasonable in design, simple in structure and suitable for optimal design of an engine valve lift variable system.
Description
Technical field
The present invention relates to the variable valve lift system of a kind of technical field of mechanical design, particularly one is applicable to
The cubic displacement ejector half trapezoidal control device that valve stroke is associated with engine speed.
Background technology
Traditional petrolic valve stroke is fixing immutable, and namely the cam profile of camshaft only has one
Kind, this has resulted in this lift can not make electromotor all obtain good response in high velocity and low regime.Conventional gasoline machine is sent out
The valve stroke of motivation i.e. design of cam contour line is to select electromotor balance under full working scope, its result be electromotor both
Can not get optimal high speed efficiency, also can not get optimal low speed torque, but obtained best balanced performance under full working scope.Variable
The employing of valve stroke, makes electromotor can be met the valve stroke of demand in high velocity and low regime, thus improves and send out
Motivation high-speed power and low speed torque.
Through the retrieval of prior art literature is found, China Patent No. application number 200910190522.1, patent name:
The hydraulic valve mechanism of a kind of lift range variable, this patented technology provides the device of a kind of variable valve lift, can be preferably
Take into account the high and low rotating speed operating mode of electromotor.But its design is the hydraulic mechanism utilized, the highest to sealing requirements, poorly sealed
If easily cause fluid seepage；And owing to liquid exists certain compressibility, the response speed of valve stroke change has
Certain retardance.
Summary of the invention
Originally the present invention is directed to above-mentioned the deficiencies in the prior art, it is provided that a kind of mechanical conditioning type variable valve lift system,
The response speed that valve stroke can be made to change is very fast.
The present invention is achieved through the following technical solutions, the present invention include inlet manifold, compressor, air intake branch,
Cylinder cap, cylinder body, piston, exhaust branch pipe, turbine, exhaust main, inlet valve hypomere, exhaust valve hypomere, inlet valve epimere, execution
Body, moving body, run through pipe, movable block, pull bar, control volume, rotary shaft, the first spring, centrifugal body, ball, the second spring, stretching
Body, the first connecting tube, the second connecting tube, inlet manifold, air intake branch link together, and exhaust branch pipe, exhaust main are connected to
Together, compressor is arranged on inlet manifold, and turbine is arranged on exhaust main, and piston is arranged in cylinder body, inlet valve hypomere,
Exhaust valve hypomere is arranged on cylinder cap, and it is internal that moving body is arranged in execution, runs through pipe and is arranged in moving body, and movable block is arranged in
Run through pipe in, the vertical section of movable block is trapezoidal, the upper end of inlet valve hypomere through perform body lower wall surface after with movable block
Bottom connection touches, and the lower end of inlet valve epimere contacts with the napex of movable block after crossing the upper wall surface performing body, rotary shaft and control
Body processed is consolidated, and rotary shaft is connected with engine crankshaft by chain, the first spring, centrifugal body, ball, the second bullet
Spring, extrusion are arranged in control volume, and centrifugal body, the vertical section of extrusion are trapezoidal, and ball is embedded in outside extrusion
On wall, a side wall surface of centrifugal body contacts with ball, and the opposite side wall of centrifugal body is by the first spring and control volume
Internal face is connected, and the right wall of extrusion is connected with the internal face of control volume by the second spring, the one of pull bar
End is connected with extrusion left wall face, and the other end of pull bar is fixedly arranged at one with the right wall of moving body after the wall of execution body
Rising, it is internal that the first connecting tube, the second connecting tube are arranged in execution, the exhaust main phase after one end of the first connecting tube and turbine
Connection, the other end of the first connecting tube is connected with the cavity on the right side of moving body, behind one end of the second connecting tube and compressor
Inlet manifold is connected, and the other end of the second connecting tube is connected with the cavity on the left of moving body.
Further, in the present invention, centrifugal body, ball are array and arrange, the cross section of control volume internal cavity
For round, the cross section of extrusion is round, and the cross section of centrifugal body is rectangle.
Compared with prior art, the present invention have the advantages that into: the present invention is reasonable in design, simple in construction, valve
Lift can followed by the rotating speed started and be changed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial enlarged drawing of Fig. 1；
Fig. 3 is the profile of control volume in the present invention；
Fig. 4 is the structural representation of A-A section in Fig. 1；
Fig. 5 is the structural representation of B-B section in Fig. 3；
Wherein: 1, inlet manifold, 2, compressor, 3, air intake branch, 4, cylinder cap, 5, cylinder body, 6, piston, 7, exhaust branch pipe,
8, turbine, 9, exhaust main, 10, inlet valve hypomere, 11, exhaust valve hypomere, 12, inlet valve epimere, 13, perform body, 14, mobile
Body, 15, run through pipe, 16, movable block, 17, pull bar, 18, control volume, 19, rotary shaft, the 20, first spring, 21, centrifugal body, 22,
Ball, the 23, second spring, 24, extrusion, the 25, first connecting tube, the 26, second connecting tube.
Detailed description of the invention
Elaborating embodiments of the invention below in conjunction with the accompanying drawings, the present embodiment is front with technical solution of the present invention
Carry, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figures 1 to 5, the present invention includes inlet manifold 1, compressor 2, air intake branch 3, cylinder cap 4, cylinder body 5, piston
6, exhaust branch pipe 7, turbine 8, exhaust main 9, inlet valve hypomere 10, exhaust valve hypomere 11, inlet valve epimere 12, perform body 13,
Moving body 14, run through pipe 15, movable block 16, pull bar 17, control volume 18, rotary shaft the 19, first spring 20, centrifugal body 21, ball
22, the second spring 23, extrusion the 24, first connecting tube the 25, second connecting tube 26, inlet manifold 1, air intake branch 3 are connected to one
Rising, exhaust branch pipe 7, exhaust main 9 link together, and compressor 2 is arranged on inlet manifold 1, and turbine 8 is arranged in exhaust main
On 9, piston 6 is arranged in cylinder body 5, and inlet valve hypomere 10, exhaust valve hypomere 11 are arranged on cylinder cap 4, and moving body 14 is arranged in
Performing, in body 13, to run through pipe 15 and be arranged in moving body 14, movable block 16 is arranged in and runs through in pipe 15, the vertical section of movable block 16
For trapezoidal, the upper end of inlet valve hypomere 10 is tactile with the bottom connection of movable block 16 after passing the lower wall surface performing body 13, inlet valve
The lower end of epimere 12 contacts with the napex of movable block 16 after crossing the upper wall surface performing body 13, and rotary shaft 19 consolidates with control volume 18
Together, rotary shaft 19 is connected with engine crankshaft by chain, the first spring 20, centrifugal body 21, ball the 22, second spring
23, in extrusion 24 is arranged in control volume 18, centrifugal body 21, the vertical section of extrusion 24 are trapezoidal, and ball 22 is embedded in
In the outside wall surface of extrusion 24, a side wall surface of centrifugal body 21 contacts with ball 22, and the opposite side wall of centrifugal body 21 passes through
First spring 20 is connected with the internal face of control volume 18, and the right wall of extrusion 24 is by the second spring 23 and control volume 18
Internal face is connected, and one end of pull bar 17 is connected with extrusion 24 left wall face, and the other end of pull bar 17 is through performing
After the wall of body 13, the right wall with moving body 14 is consolidated, and centrifugal body 21, ball 22 are array and arrange, control volume
The cross section of 18 internal cavities is round, and the cross section of extrusion 24 is round, and the cross section of centrifugal body 21 is rectangle, first
Connecting tube the 25, second connecting tube 26 is arranged in execution body 13, the exhaust main behind one end of the first connecting tube 25 and turbine 8
9 are connected, and the other end of the first connecting tube 25 is connected with the cavity on the right side of moving body 14, one end of the second connecting tube 26 and pressure
Inlet manifold 1 after mechanism of qi 2 is connected, and the other end of the second connecting tube 26 is connected with the cavity on the left of moving body 14.
In the implementation process of the present invention, rotary shaft 19 is connected with engine crankshaft by chain.Work as engine speed
Time higher, the rotary speed of control volume 18 is the highest, and under the left and right of centrifugal force, centrifugal body 21 is displaced outwardly and compresses the first bullet
Spring 20, extrusion 24 moves right under the effect of the second spring 23, so that pull bar 17 pulls moving body 14, movable block 16 1
Rising and move right, inlet valve epimere 12 moves up, and the overall lift of inlet valve becomes big.In like manner, when the engine speed is lower,
The rotary speed of control volume 18 is relatively low, and under the effect of the first spring 20, centrifugal body moves inwards, and extrusion 24 is moved to the left,
So that pull bar 17 pulls moving body 14, movable block 16 to be moved to the left together, inlet valve epimere 12 moves down, inlet valve whole
Body lift diminishes.Under the effect of first connecting tube the 25, second connecting tube 26, moving body 14, the mobile comparison of movable block 16 are put down
Suitable.
Claims (2)
1. a cubic displacement ejector half trapezoidal control device, including inlet manifold (1), compressor (2), air intake branch (3), cylinder cap
(4), cylinder body (5), piston (6), exhaust branch pipe (7), turbine (8), exhaust main (9), inlet valve hypomere (10), exhaust valve hypomere
(11), inlet manifold (1), air intake branch (3) link together, and exhaust branch pipe (7), exhaust main (9) link together, and calm the anger
Machine (2) is arranged on inlet manifold (1), and turbine (8) is arranged on exhaust main (9), and piston (6) is arranged in cylinder body (5), enters
Valve hypomere (10), exhaust valve hypomere (11) are arranged on cylinder cap (4), it is characterised in that also include inlet valve epimere (12), hold
Row body (13), moving body (14), run through pipe (15), movable block (16), pull bar (17), control volume (18), rotary shaft (19), first
Spring (20), centrifugal body (21), ball (22), the second spring (23), extrusion (24), the first connecting tube (25), the second connection
Pipe (26), moving body (14) is arranged in execution body (13), runs through pipe (15) and is arranged in moving body (14), movable block (16) cloth
Putting within running through pipe (15), the vertical section of movable block (16) is trapezoidal, and the upper end of inlet valve hypomere (10) is through performing body (13)
Lower wall surface after touch, after the upper wall surface of execution body (13) is crossed in the lower end of inlet valve epimere (12) with the bottom connection of movable block (16)
Contacting with the top of movable block (16), rotary shaft (19) is consolidated with control volume (18), and rotary shaft (19) passes through chain
Being connected with engine crankshaft, the first spring (20), centrifugal body (21), ball (22), the second spring (23), extrusion (24) are equal
Being arranged in control volume (18), centrifugal body (21), the vertical section of extrusion (24) are trapezoidal, and ball (22) is embedded in extrusion
(24) in outside wall surface, a side wall surface of centrifugal body (21) contacts with ball (22), and the opposite side wall of centrifugal body (21) leads to
Cross the first spring (20) to be connected with the internal face of control volume (18), the right wall of extrusion (24) by the second spring (23) with
The internal face of control volume (18) is connected, and one end of pull bar (17) is connected with extrusion (24) left wall face, pull bar
(17) the other end is consolidated with the right wall of moving body (14) after performing the wall of body (13), the first connecting tube
(25), the second connecting tube (26) is arranged in the aerofluxus in execution body (13), behind one end of the first connecting tube (25) and turbine (8)
House steward (9) is connected, and the other end of the first connecting tube (25) is connected with the cavity on moving body (14) right side, the second connecting tube
(26) one end is connected with the inlet manifold (1) after compressor (2), the other end of the second connecting tube (26) and moving body (14)
The cavity in left side is connected.
Four directions the most according to claim 1 displacement ejector half trapezoidal control device, it is characterised in that centrifugal body (21), ball
(22) being array to arrange, the cross section of control volume (18) internal cavity is round, and the cross section of extrusion (24) is round,
The cross section of centrifugal body (21) is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550765.1A CN106050349A (en) | 2016-07-13 | 2016-07-13 | Four-direction movable type trapezoidal control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550765.1A CN106050349A (en) | 2016-07-13 | 2016-07-13 | Four-direction movable type trapezoidal control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050349A true CN106050349A (en) | 2016-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610550765.1A Pending CN106050349A (en) | 2016-07-13 | 2016-07-13 | Four-direction movable type trapezoidal control device |
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| Country | Link |
|---|---|
| CN (1) | CN106050349A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966399A (en) * | 2012-11-29 | 2013-03-13 | 上海交通大学 | Tappet rod device with transverse moving type moving body |
| CN103277164A (en) * | 2013-05-09 | 2013-09-04 | 上海交通大学 | Push-pull valve height variable system |
| CN105386864A (en) * | 2015-12-21 | 2016-03-09 | 王悦萍 | Centre-fixed and periphery-rotating device |
| CN105508028A (en) * | 2015-12-21 | 2016-04-20 | 康明 | Slope-inlaid type rolling device |
-
2016
- 2016-07-13 CN CN201610550765.1A patent/CN106050349A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966399A (en) * | 2012-11-29 | 2013-03-13 | 上海交通大学 | Tappet rod device with transverse moving type moving body |
| CN103277164A (en) * | 2013-05-09 | 2013-09-04 | 上海交通大学 | Push-pull valve height variable system |
| CN105386864A (en) * | 2015-12-21 | 2016-03-09 | 王悦萍 | Centre-fixed and periphery-rotating device |
| CN105508028A (en) * | 2015-12-21 | 2016-04-20 | 康明 | Slope-inlaid type rolling device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |
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| WD01 | Invention patent application deemed withdrawn after publication |