CN109751098A - Engine timing valve actuating mechanism and engine - Google Patents
Engine timing valve actuating mechanism and engine Download PDFInfo
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- CN109751098A CN109751098A CN201910119120.6A CN201910119120A CN109751098A CN 109751098 A CN109751098 A CN 109751098A CN 201910119120 A CN201910119120 A CN 201910119120A CN 109751098 A CN109751098 A CN 109751098A
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Abstract
The present invention provides a kind of engine timing valve actuating mechanism and engines, are related to the technical field of engine.Engine timing valve actuating mechanism includes air intake assembly and gas deflation assembly；Air intake assembly includes admission cam shaft and air inlet door part, and admission cam shaft is equipped with the first cam set of multiple groups, and the first cam set includes at least two admission cams；First cam set can sliding axially along admission cam shaft, for switching between two admission cams, to change air inlet frequency；Gas deflation assembly includes exhaust cam shaft and exhaust door part, and exhaust cam shaft is equipped with the second cam set of multiple groups, and the second cam set includes at least two exhaust cams；Second cam set can sliding axially along exhaust cam shaft, for switching between two exhaust cams, to change discharge frequency.A kind of engine includes engine timing valve actuating mechanism.Alleviate the problems such as engine thermal efficiency in the prior art is lower, oil consumption is higher.
Description
Technical field
The present invention relates to the technical fields of engine, more particularly, to a kind of engine timing valve actuating mechanism and engine.
Background technique
In the prior art, when engine operation, each cylinder of engine does a function at two turns every turn of crankshaft, accordingly starts
The opening, closing motion of machine timing mechanism every turn of two turns of completions exhaust valves and inlet valve.However, when engine is in small negative
When lotus, the above process is unfavorable for improving engine thermal efficiency, while being unfavorable for reducing oil consumption.
Based on problem above, propose that a kind of thermal efficiency is higher, the lower engine of oil consumption is particularly important.
The information disclosed in the background technology section is intended only to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Summary of the invention
It is in the prior art to alleviate the purpose of the present invention is to provide a kind of engine timing valve actuating mechanism and engine
The problems such as engine thermal efficiency is lower, oil consumption is higher.
In order to solve the above-mentioned technical problem, the technological means that the present invention takes are as follows:
A kind of engine timing valve actuating mechanism provided by the invention includes: air intake assembly and gas deflation assembly；
The air intake assembly includes admission cam shaft and multiple air inlet door parts, is provided with multiple groups on the admission cam shaft
The first cam set corresponding with the air inlet door part respectively, first cam set include at least two admission cams；Institute
State the first cam set can sliding axially along the admission cam shaft, for switch at least two admission cams with it is described
The contact of air inlet door part is used cooperatively one of them described admission cam with the air inlet door part, to change air inlet frequency
Rate；
The gas deflation assembly includes exhaust cam shaft and multiple exhaust door parts, is provided with multiple groups on the exhaust cam shaft
The second cam set corresponding with the exhaust door part respectively, second cam set include at least two exhaust cams；Institute
State the second cam set can sliding axially along the exhaust cam shaft, for switch at least two exhaust cams with it is described
It is vented the contact of door part, is used cooperatively one of them described exhaust cam with the exhaust door part, to change exhaust frequency
Rate.
As a kind of further technical solution, first cam set includes first single peach tip cam and first pair of peach tip
Cam；
In the admission cam shaft constant revolution, first pair of peach tip cam opens the number of the air inlet door part
Twice that the number of the air inlet door part is opened for described first single peach tip cam.
As a kind of further technical solution, second cam set includes second single peach tip cam and second pair of peach tip
Cam；
In the exhaust cam shaft constant revolution, second pair of peach tip cam opens the number of the exhaust door part
Twice that the number of the exhaust door part is opened for described second single peach tip cam.
As a kind of further technical solution, flower is respectively arranged in first cam set and second cam set
Keyway arrangements；
Spline structure, and the spline structure and institute are respectively arranged on the admission cam shaft and the exhaust cam shaft
Spline slot structure is stated to be coupled.
As a kind of further technical solution, first cam set and second cam set are connected separately with driving
Mechanism, the driving mechanism are used to drive the first cam set sliding axially along the admission cam shaft, and for driving
Move the second cam set sliding axially along the exhaust cam shaft.
As a kind of further technical solution, which includes for driving the air intake assembly
And the timing driving assembly of the gas deflation assembly；
The timing driving assembly includes the air inlet driving wheel for driving the admission cam shaft rotation, and for driving
Move the exhaust gas drive wheel of the exhaust cam shaft rotation；
The admission cam shaft and the air inlet driving wheel are sequentially connected, the exhaust cam shaft and the exhaust gas drive wheel
Transmission connection.
As a kind of further technical solution, the air inlet driving wheel and the exhaust gas drive wheel and crankshaft driving wheel it
Between be sequentially connected by timing belt or timing chain.
As a kind of further technical solution, the timing driving assembly further includes breast wheel, and the breast wheel has
The first driving section and the second driving section of coaxial arrangement；
Pass through the first timing V belt translation between first driving section and the air inlet driving wheel and the exhaust gas drive wheel
Connection is sequentially connected between second driving section and the crankshaft driving wheel by the second timing belt.
As a kind of further technical solution, the air inlet door part and the exhaust door part respectively include valve sheet
Body, valve seating, return element and rocker arm；
The throttle body is slidably connected on the valve seating, and the return element is for driving the throttle body to close
It closes, the end of the rocker arm and the top of the throttle body are oppositely arranged；
The admission cam and the exhaust cam are correspondingly arranged with the rocker arm respectively.
A kind of engine provided by the invention includes the engine timing valve actuating mechanism.
Compared with prior art, technical advantage possessed by engine timing valve actuating mechanism provided by the invention are as follows:
A kind of engine timing valve actuating mechanism provided by the invention, wherein at least one set first is set on admission cam shaft
Cam set, and include at least two admission cams in the first cam set, the first cam set can be sliding along the axial direction of admission cam shaft
It is dynamic, it is used cooperatively thus, it is possible to make to toggle between two admission cams in each group with air inlet door part, in turn, leads to
It crosses admission cam of different shapes and changes the interval for opening inlet valve, achieve the purpose that change air inlet frequency with this.
It likewise, being provided at least one set of second cam set on exhaust cam shaft, and include at least two in the second cam set
A exhaust cam, the second cam set can sliding axially along exhaust cam shaft, thus, it is possible to keep two exhausts in each group convex
It is toggled between wheel and is vented being used cooperatively for door part, in turn, passed through exhaust cam of different shapes and change unlatching exhaust
The interval of door achievees the purpose that change discharge frequency with this.
Due to changing air inlet frequency and discharge frequency, and the two is adapted, so that every cylinder of engine is rotated in crankshaft
The number that does work in the case where different revolutions changes, and in the present invention, can increase the revolution of crankshaft rotation when engine does work one time,
That is, once can be switched to four turns of crankshaft actings once by two turns of crankshaft actings, so as to improve the load of working cylinder；And it improves
The thermal efficiency of the engine operation in Smaller load, thereby reduces oil consumption.
A kind of engine provided by the invention, including above-mentioned engine timing valve actuating mechanism, the engine is reached as a result,
Technical advantage and effect include above-mentioned engine timing valve actuating mechanism technical advantage achieved and effect, it is no longer superfluous herein
It states.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of camshaft in the prior art and valve；
Fig. 2 is single peach tip cam and air inlet door part in admission cam shaft provided in an embodiment of the present invention (exhaust cam shaft)
The schematic diagram of (exhaust door part) contact；
Fig. 3 is double peach tip cams and air inlet door part in admission cam shaft provided in an embodiment of the present invention (exhaust cam shaft)
First schematic diagram of (exhaust door part) contact；
Fig. 4 is double peach tip cams and air inlet door part in admission cam shaft provided in an embodiment of the present invention (exhaust cam shaft)
Second schematic diagram of (exhaust door part) contact；
Fig. 5 is engine timing valve actuating mechanism provided in an embodiment of the present invention (removing air inlet door part and exhaust door part)
Schematic diagram.
Icon:
100- air intake assembly；110- admission cam shaft；The first cam set of 120-；The single peach tip cam of 121- first；
First pair of peach tip cam of 122-；130- air inlet door part；131- throttle body；132- return element；133- rocker arm；
200- gas deflation assembly；210- exhaust cam shaft；The second cam set of 220-；The single peach tip cam of 221- second；
Second pair of peach tip cam of 222-；230- is vented door part；
300- timing driving assembly；310- air inlet driving wheel；320- exhaust gas drive wheel；330- breast wheel；331-
One driving section；The second driving section 332-；The first timing belt of 340-；The second timing belt of 350-；360- crankshaft driving wheel.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Specific structure is as Figure 1-Figure 5.
A kind of engine timing valve actuating mechanism provided in this embodiment, wherein be arranged on admission cam shaft 110 at least one set of
First cam set 120, and include at least two admission cams in the first cam set 120, the first cam set 120 can be convex along air inlet
Wheel shaft 110 slides axially, thus, it is possible to make to toggle between two admission cams in the first cam set of each group 120 with
Air inlet door part 130 is used cooperatively, and in turn, changes the interval for opening inlet valve by the admission cam of different shape, structure,
Achieve the purpose that change air inlet frequency with this.
Likewise, being provided at least one set of second cam set 220 on exhaust cam shaft 210, and wrapped in the second cam set 220
Include at least two exhaust cams, the second cam set 220 can sliding axially along exhaust cam shaft 210, thus, it is possible to make each group
It is toggled between two exhaust cams in second cam set 220 and is vented being used cooperatively for door part 230, in turn, passed through
Exhaust cam of different shapes changes the interval for opening exhaust valve, achievees the purpose that change discharge frequency with this.
Due to changing air inlet frequency and discharge frequency, and the two is adapted, so that every cylinder of engine is rotated in crankshaft
The number that does work in the case where different revolutions changes.In the present invention, the revolution of crankshaft rotation when engine does work one time can be increased,
That is, once can be switched to four turns of crankshaft actings once by two turns of crankshaft actings, so as to improve the load of working cylinder；And it improves
The thermal efficiency of the engine operation in Smaller load, thereby reduces oil consumption.
In the optional technical solution of the present embodiment, the first cam set 120 includes first single peach tip cam 121 and first pair of peach
Sharp cam 122；In 110 constant revolution of admission cam shaft, first pair of peach tip cam 122 opens the number of air inlet door part 130
Twice that the number of air inlet door part 130 is opened for first single peach tip cam 121.
In the optional technical solution of the present embodiment, the second cam set 220 includes second single peach tip cam 221 and second pair of peach
Sharp cam 222；In 210 constant revolution of exhaust cam shaft, second pair of peach tip cam 222 opens the number of exhaust door part 230
Twice that the number of exhaust door part 230 is opened for second single peach tip cam 221.
Specifically, the first single peach tip cam 121 and first pair of peach tip cam 122 in every group of first cam set 120 are spaced
Certain distance generates interference, shadow to another when preventing one of them from abutting against with the rocker arm 133 in air inlet door part 130
Ring the normally-open of valve；Certainly, the distance between first single peach tip cam 121 and first pair of peach tip cam 122 also should not mistakes
Greatly, since it is desired that the first cam set 120 of driving is just able to achieve first single peach tip cam along the axial movement of admission cam shaft 110
Switching between 121 and first pair of peach tip cam 122, as a result, first single peach tip cam 121 and the first pair of peach tip cam 122 it
Between distance directly affect the first cam set 120 along the distance in axial sliding of admission cam shaft 110.In the present embodiment, according to setting
Meter requires to choose the distance.
It is herein it should be noted that suitable between first single peach tip cam 121 and first pair of peach tip cam 122 in order to make
Benefit switching, first single peach tip cam 121 and first pair of peach tip cam 122 and the rocker arm 133 in corresponding air inlet door part 130 it
Between have certain gap, with guarantee the first cam set 120 along admission cam shaft 110 when sliding axially first single peach tip it is convex
The side end face of wheel 121 or first pair of peach tip cam 122 is unlikely to touch with the side end face of rocker arm 133, to ensure that switching
Process is gone on smoothly, certainly, second single peach tip cam 221 and second pair of peach tip cam 222 and corresponding exhaust door part 230
In rocker arm 133 between equally have certain interval, concrete scheme is identical as above scheme, is not set forth in detail.
In the prior art, it is all made of single peach tip cam, and the ratio between speed of crankshaft and camshaft speed is 2:1, this
Sample one, crankshaft rotate two turns and complete primary acting；And in the present embodiment, using matching for single peach tip cam and double peach tip cams
It closes, that is, crankshaft can be realized by single peach tip cam and rotate the primary acting of four turns of completions, can be realized song by double peach tip cams
Axis rotates two turns and completes primary acting；According to the different operating situation of engine, between single peach tip cam and double peach tip cams
It switches over, thus, in single peach tip actuated by cams rocker arm 133, it can be improved the load of working cylinder, theoretically more double peach tips
The load that the case where actuated by cams rocker arm 133 doubles；Also, correspondingly increase thermal effect of the engine operation in Smaller load
Rate, and then reduce fuel consumption.
Further, about between in the second cam set 220 second single peach tip cam 221 and second pair of peach tip cam 222
Handoff procedure and first single peach tip cam 121 and first pair of peach tip cam 122 in principle, with above-mentioned first cam set 120
Between handoff procedure and principle it is similar, details are not described herein again.
In the optional technical solution of the present embodiment, spline is respectively arranged in the first cam set 120 and the second cam set 220
Slot structure；Spline structure, and spline structure and spline knot are respectively arranged on admission cam shaft 110 and exhaust cam shaft 210
Structure is coupled, specifically, the spline in the spline structure and the first cam set 120 on admission cam shaft 110 on admission cam
Slot structure is coupled, likewise, in the spline structure and the second cam set 220 on exhaust cam shaft 210 on exhaust cam
Spline slot structure is coupled.
In the optional technical solution of the present embodiment, the first cam set 120 and the second cam set 220 are connected separately with driving machine
Structure, the driving mechanism are used to drive the first sliding axially along admission cam shaft 110 of cam set 120, and for driving second
Cam set 220 slides axially along exhaust cam shaft 210.
In the present embodiment, in order to realize that the first cam set 120 and the second cam set 220 can be respectively along two camshafts
It slides axially, admission cam shaft 110 and exhaust cam shaft 210 is improved respectively, so that the first cam set 120 and air inlet
It opposite can be slided between camshaft 110, it being capable of opposite sliding between the second cam set 220 and exhaust cam shaft 210.It is preferred that
Spline slot structure is respectively set in the first cam set 120 and the second cam set 220, correspondingly, in admission cam shaft 110 in ground
Spline structure is set with corresponding position on exhaust cam shaft 210, so, when spline structure and the cooperation of spline slot structure make
Used time, the first cam set 120 can sliding axially relative to admission cam shaft 110, with the single peach tip cam 121 of switching first and
First pair of peach tip cam 122 is contacted with corresponding intake valve assembly 130, and the second cam set 220 can be relative to exhaust cam shaft 210
Slide axially, contacted with the single peach tip cam 221 of switching second and second pair of peach tip cam 222 with corresponding exhaust valve assemblies 230.
Further, for driving the power source of the first cam set 120, the sliding of the second cam set 220 can in the present embodiment
Be it is same, can also separate drive, as long as can guarantee the first cam set 120 and 220 synchronous slide of the second cam set i.e.
Can, concrete mode is unrestricted.
Specifically, the driving mechanism includes shift fork, connecting rod, actuator etc., actuator drives shift fork mobile by connecting rod, by
Shift fork stirs the first cam set 120, the movement of the second cam set 220, to realize switching.Herein it should be noted that the driving machine
Structure can also be with reference to automobile gear shift principle, speed changer principle etc., as long as the first cam set 120 can be stirred along admission cam shaft
110 slide axially, stirs the second sliding axially along exhaust cam shaft 210 of cam set 220, and specific structure is not done in detail
It illustrates.
In the optional technical solution of the present embodiment, which further includes for driving air intake assembly
100 and gas deflation assembly 200 timing driving assembly 300；Timing driving assembly 300 includes for driving admission cam shaft 110 to revolve
The air inlet driving wheel 310 turned, and the exhaust gas drive wheel 320 for driving exhaust cam shaft 210 to rotate；Admission cam shaft 110
It is sequentially connected with air inlet driving wheel 310, exhaust cam shaft 210 and exhaust gas drive wheel 320 are sequentially connected.
In the optional technical solution of the present embodiment, air inlet driving wheel 310 and exhaust gas drive wheel 320 and crankshaft driving wheel 360
Between be sequentially connected by timing belt or timing chain.
In the optional technical solution of the present embodiment, timing driving assembly 300 further includes breast wheel 330, and breast wheel 330 has
The first driving section 331 and the second driving section 332 of coaxial arrangement；First driving section 331 and air inlet driving wheel 310 and exhaust gas drive
It is sequentially connected between wheel 320 by the first timing belt 340, between the second driving section 332 and crankshaft driving wheel 360 just by second
When band 350 be sequentially connected.Certainly, the first timing belt 340 can also be substituted with timing chain, and the second timing belt 350 can also be used
Timing chain substitution.
It should be noted that turning between speed of crankshaft and admission cam shaft 110, exhaust cam shaft 210 in the prior art
Speed ratio is 2:1, and corresponding with single peach tip cam；And in the present embodiment, when being switched to single peach tip cam, speed of crankshaft with into
Rotating ratio between gas camshaft 110, exhaust cam shaft 210 is 4:1, it is contemplated that the larger problem of rotating ratio, the present embodiment
In be additionally arranged breast wheel 330, specifically, breast wheel 330 have the first driving section 331 and the second driving section 332, and first transmission
Portion 331 and air inlet driving wheel 310 are sequentially connected between exhaust gas drive wheel 320 by the first timing belt 340, the second driving section 332
It is sequentially connected between crankshaft driving wheel 360 by the second timing belt 350, as a result, crankshaft driving wheel 360 and air inlet driving wheel
310, rotating ratio is increased by the transitional function of breast wheel 330 between exhaust gas drive wheel 320, thus, when being switched to single peach tip
When cam, engine operation is more stable, meets actual requirement.
Preferably, the first timing belt 340 and the second timing belt 350 are all made of synchronous belt, and air inlet driving wheel 310, exhaust are driven
Driving wheel 320, crankshaft driving wheel 360 and breast wheel 330 are all made of synchronous pulley, pass through the cooperation between synchronous belt and synchronous pulley
It uses, improves power transmission precision.
In the optional technical solution of the present embodiment, air inlet door part 130 and exhaust door part 230 respectively include throttle body
131, valve seating, return element 132 (spring) and rocker arm 133；Throttle body 131 is slidably connected on valve seating, return element
132 for driving throttle body 131 to close, and the end of rocker arm 133 and the top of throttle body 131 are oppositely arranged；Admission cam
And exhaust cam is correspondingly arranged with rocker arm 133 respectively.
It should be noted that the specific structure of air inlet door part 130 herein and exhaust door part 230 can refer to it is existing
Technology is not set forth in detail herein.
A kind of engine provided in this embodiment, including above-mentioned engine timing valve actuating mechanism, the engine is reached as a result,
To technical advantage and effect include above-mentioned engine timing valve actuating mechanism technical advantage achieved and effect, it is no longer superfluous herein
It states.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of engine timing valve actuating mechanism characterized by comprising air intake assembly (100) and gas deflation assembly (200)；
The air intake assembly (100) includes admission cam shaft (110) and multiple air inlet door parts (130), the admission cam shaft
(110) multiple groups the first cam set (120) corresponding with air inlet door part (130) respectively is provided on, described first is convex
Wheel group (120) includes at least two admission cams；First cam set (120) can be along the admission cam shaft (110)
It slides axially, for switching the contact of at least two admission cams with the air inlet door part (130), makes one of institute
It states admission cam to be used cooperatively with the air inlet door part (130), to change air inlet frequency；
The gas deflation assembly (200) includes exhaust cam shaft (210) and multiple exhaust door parts (230), the exhaust cam shaft
(210) multiple groups the second cam set (220) corresponding with exhaust door part (230) respectively is provided on, described second is convex
Wheel group (220) includes at least two exhaust cams；Second cam set (220) can be along the exhaust cam shaft (210)
It slides axially, for switching the contact of at least two exhaust cams with exhaust door part (230), makes one of institute
It states exhaust cam to be used cooperatively with the exhaust door part (230), to change discharge frequency.
2. engine timing valve actuating mechanism according to claim 1, which is characterized in that the first cam set (120) packet
Include first single peach tip cam (121) and first pair of peach tip cam (122)；
In the admission cam shaft (110) constant revolution, first pair of peach tip cam (122) opens the air inlet door part
(130) number is twice of the number that described first single peach tip cam (121) opens the air inlet door part (130).
3. engine timing valve actuating mechanism according to claim 1, which is characterized in that the second cam set (220) packet
Include second single peach tip cam (221) and second pair of peach tip cam (222)；
In the exhaust cam shaft (210) constant revolution, second pair of peach tip cam (222) opens the exhaust door part
(230) number is twice of the number that described second single peach tip cam (221) opens exhaust door part (230).
4. engine timing valve actuating mechanism according to claim 1-3, which is characterized in that first cam
Spline slot structure is respectively arranged in group (120) and second cam set (220)；
Spline structure, and the spline knot are respectively arranged on the admission cam shaft (110) and the exhaust cam shaft (210)
Structure is coupled with the spline slot structure.
5. engine timing valve actuating mechanism according to claim 4, which is characterized in that first cam set (120) and
Second cam set (220) is connected separately with driving mechanism, and the driving mechanism is for driving first cam set (120)
Along sliding axially for the admission cam shaft (110), and for driving second cam set (220) along the exhaust cam
Axis (210) slide axially.
6. engine timing valve actuating mechanism according to claim 1-3, which is characterized in that including for driving
The timing driving assembly (300) of the air intake assembly (100) and the gas deflation assembly (200)；
The timing driving assembly (300) includes the air inlet driving wheel for driving the admission cam shaft (110) to rotate
(310), and for drive the exhaust cam shaft (210) rotate exhaust gas drive wheel (320)；
The admission cam shaft (110) and the air inlet driving wheel (310) are sequentially connected, the exhaust cam shaft (210) and institute
State exhaust gas drive wheel (320) transmission connection.
7. engine timing valve actuating mechanism according to claim 6, which is characterized in that the air inlet driving wheel (310) and
It is sequentially connected between the exhaust gas drive wheel (320) and crankshaft driving wheel (360) by timing belt or timing chain.
8. engine timing valve actuating mechanism according to claim 7, which is characterized in that the timing driving assembly (300)
It further include breast wheel (330), the breast wheel (330) has the first driving section (331) and the second driving section of coaxial arrangement
(332)；
Pass through first between first driving section (331) and the air inlet driving wheel (310) and the exhaust gas drive wheel (320)
Timing belt (340) transmission connection, passes through the second timing between second driving section (332) and the crankshaft driving wheel (360)
Band (350) is sequentially connected.
9. engine timing valve actuating mechanism according to claim 1-3, which is characterized in that the inlet valve portion
Part (130) and the exhaust door part (230) respectively include throttle body (131), valve seating, return element (132) and rocker arm
(133)；
The throttle body (131) is slidably connected on the valve seating, and the return element (132) is for driving the valve
Ontology (131) is closed, and the end of the rocker arm (133) and the top of the throttle body (131) are oppositely arranged；
The admission cam and the exhaust cam are correspondingly arranged with the rocker arm (133) respectively.
10. a kind of engine, which is characterized in that including the described in any item engine timing valve actuating mechanisms of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119120.6A CN109751098A (en) | 2019-02-15 | 2019-02-15 | Engine timing valve actuating mechanism and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119120.6A CN109751098A (en) | 2019-02-15 | 2019-02-15 | Engine timing valve actuating mechanism and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109751098A true CN109751098A (en) | 2019-05-14 |
Family
ID=66407634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910119120.6A Pending CN109751098A (en) | 2019-02-15 | 2019-02-15 | Engine timing valve actuating mechanism and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109751098A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060940A (en) * | 2017-06-07 | 2017-08-18 | 大连理工大学 | A kind of multi-mode valve-driving system |
| CN108049928A (en) * | 2017-10-23 | 2018-05-18 | 燕山大学 | A kind of twin cam shaft becomes Stroke Engine distribution switching mechanism |
-
2019
- 2019-02-15 CN CN201910119120.6A patent/CN109751098A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060940A (en) * | 2017-06-07 | 2017-08-18 | 大连理工大学 | A kind of multi-mode valve-driving system |
| CN108049928A (en) * | 2017-10-23 | 2018-05-18 | 燕山大学 | A kind of twin cam shaft becomes Stroke Engine distribution switching mechanism |
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Application publication date: 20190514 |
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| RJ01 | Rejection of invention patent application after publication |