CN207212493U - A kind of engine and its variable lift compression ratio linkage - Google Patents
A kind of engine and its variable lift compression ratio linkage Download PDFInfo
- Publication number
- CN207212493U CN207212493U CN201720960288.6U CN201720960288U CN207212493U CN 207212493 U CN207212493 U CN 207212493U CN 201720960288 U CN201720960288 U CN 201720960288U CN 207212493 U CN207212493 U CN 207212493U
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- Prior art keywords
- connecting rod
- compression ratio
- inner sleeve
- variable lift
- rotor
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Abstract
The utility model discloses a kind of variable lift compression ratio linkage of engine, including connecting rod bottom, the motor cabinet for being installed in the endoporus of the connecting rod lower tip and being fixedly connected with the connecting rod bottom, it is installed on the motor stator being fixedly connected in the torus at the motor cabinet center and with the motor cabinet, the rotor being fitted into the centre bore of the motor stator, the inner sleeve being set in around the rotor and the motor stator, it is installed on the connecting rod lower tip and the connecting rod top that can be slided up and down along the connecting rod bottom, it is connected through a screw thread between the inwall on the connecting rod top and the outer wall of the inner sleeve, the mounting hole put in described and the axle on the rotor top pass through key connection.The problems such as variable lift compression ratio linkage efficiently solves the variable compression ratio unobvious of linkage.The invention also discloses a kind of engine for including above-mentioned variable lift compression ratio linkage.
Description
Technical field
Machinery, heat energy, technical field of engines are the utility model is related to, is connected more particularly to a kind of variable lift compression ratio
Linkage.In addition, the utility model further relates to a kind of engine for including above-mentioned variable lift compression ratio linkage.
Background technology
Compression ratio illustrates the compression degree of gas, it be volume after volume and gas compression before gas compression it
Than that is, the ratio between cylinder total volume and combustion chamber volume are referred to as compression ratio.Piston stroking upward in compression process, except extruding gaseous mixture makes
Volume-diminished outside, while also there occurs vortex and turbulent two kinds of phenomenons.Compression ratio increase can effectively improve engine
Performance and efficiency.Compression ratio is big to represent that engine power is high, torque is big, oil consumption is low, caused cylinder pressure and temperature during compression
Degree relatively improves, and the petrol molecule in gaseous mixture can vaporize more complete, and particle can be finer and closely woven, along with just now described whirlpool
Sealing effectiveness obtained by stream and turbulent flow effect and high compression ratio so that in lower a moment moves, when spark plug jumps out spark
It can just cause this gaseous mixture to complete the action of burning within moment, discharge the outburst energy of maximum, to turn into the dynamic of engine
Power exports.But higher compression ratio easily causes combustion knock, and requirement of the high compression ratio to oil product also accordingly improves.
In order to solve this problem, changeable compression ratio technique is born therewith, can real-time root using the engine of changeable compression ratio technique
According to the different compression ratio of the different operating conditions of engine, further such that engine uses high compression under middle-low load working condition
Than the fuel economy and the thermal efficiency that improve engine；Combustion knock is prevented using low compression ratio under high load capacity operating mode, subtracted
It is light to start the abnormal vibration caused by pinking, extend engine life, improve vehicle riding comfort.
Because changeable compression ratio technique has huge superiority, it has become a focus of Current internal combustion engines research
Direction, domestic and international some institution of higher learning and scientific research institution expand the research work to variable valve actuator for air in succession.Although at present
Realize that the species of changeable compression ratio technique mechanism is various, operation principle is also not quite similar, but the variable compression ratio occurred so far
The core of technology, which be unable to do without, to be changed the structure of cylinder cap, changes block structure, or changes piston and toggle, by
This, which develops, diversified pattern.The problem of each scheme mainly runs into has that effect caused by mechanism is not obvious enough, reliability
Not enough, the problems such as governing speed is not sensitive enough, and regulation is inaccurate, mechanism is complicated and cost is too high, causes now still without volume production machine
Type lists, and changeable compression ratio technique difficulty has some idea of.
In summary, the problems such as how efficiently solving the variable compression ratio unobvious of linkage, it is current this area
Technical staff's urgent problem.
Utility model content
The purpose of this utility model is to provide a kind of variable lift compression ratio linkage, the variable lift compression ratio connecting rod
Mechanism efficiently solves the problems such as variable compression ratio unobvious of linkage；Another object of the present utility model is to provide one
Kind includes the engine of above-mentioned variable lift compression ratio linkage.
In order to solve the above technical problems, the utility model provides following technical scheme：
A kind of variable lift compression ratio linkage of engine, including connecting rod bottom, it is installed on connecting rod bottom top
In the motor cabinet that is fixedly connected in the endoporus at end and with the connecting rod bottom, the torus being installed at the motor cabinet center and
The motor stator that is fixedly connected with the motor cabinet, the rotor being fitted into the centre bore of the motor stator, it is set in institute
The inner sleeve around rotor and the motor stator is stated, is installed on the connecting rod lower tip and can be along the connecting rod bottom
The connecting rod top of lower slider, it is connected through a screw thread between the inwall on the connecting rod top and the outer wall of the inner sleeve, the inner sleeve
On the axle on mounting hole and the rotor top pass through key connection.
Preferably, thrust ball bearing with flat seat, the thrust ball bearing with flat seat and motor are installed above the motor cabinet
The cylindrical ring surface of seat is in contact, and the upper surface of the thrust ball bearing with flat seat contacts connection with the lower surface of the inner sleeve.
Preferably, the top of the connecting rod bottom offers annular groove, is set on the external cylindrical surface of the inner sleeve bottom
The torus formula for having cross section to be rectangle is raised, and the torus formula is raised with the rotation conllinear of the inner sleeve, the ring
The mounting surface of connected in star and the torus formula are raised concordant, the installation that the annular groove and the torus formula convex to form
Dish-shaped stage clip and back-up ring are installed from the bottom to top in groove.
Preferably, the Rigid Projectiles circle that the back-up ring is formed for the misaligned circular arc in the inside and outside center of circle, its rectangular in cross-section, institute
State and contacted below back-up ring with the dish-shaped stage clip face, contacted above with the terrace of appearing on the stage of the annular groove；
The dish-shaped stage clip is the hollow annular elastic component of dish, and top reed protrudes, lower leaf depression.
Preferably, there are the guide plate that cross section is annular, the connecting rod bottom on the bottom surface of the connecting rod top vertically
Top surface on have the pilot hole of the annular being engaged with the guide plate, the guide plate inserts the pilot hole and being capable of edge
The pilot hole slides up and down.
Preferably, four structure identical prismatic table shape boss, the company have been evenly distributed on the bottom surface of the motor cabinet
The prismatic table shape pit being engaged with the prismatic table shape boss is arranged at the bottom of bar.
Preferably, keyhole, the inner sleeve and the rotor top are provided with the mounting hole at the top of the inner sleeve
Axle is assembled by flat key, and the outer spiral shell that four circles are engaged with the internal thread on the connecting rod top is provided with the outer wall of inside race
Line, the external screw thread and the internal thread are triangle thread or trapezoidal thread.
Preferably, one end that the rotor is connected with the inner sleeve is key axle, the one end being connected with the torus
For optical axis, the shaft shoulder, the key axle, the axis of rotation of the shaft shoulder and the optical axis are provided between the key axle and the optical axis
Collinearly, the external diameter of the optical axis is identical with the internal diameter of the motor stator centre bore.
Preferably, the inner bottom surface of the mounting hole of the inner sleeve contacts connection, institute with the shaft shoulder top end face of the rotor
The bottom surface for stating the shaft shoulder of rotor contacts connection with the top end face of the motor stator torus.
The utility model also provides a kind of engine, including control system and the variable liter that is connected with the control system
Journey compression ratio linkage, the variable lift compression ratio linkage are specially the variable lift compression described in any of the above-described
Compare linkage.
The variable lift compression ratio linkage of engine provided by the utility model, including connecting rod bottom, motor cabinet,
Motor stator, rotor, inner sleeve, connecting rod top, motor cabinet are installed in the endoporus of connecting rod lower tip, and motor cabinet and company
Bar bottom is fixedly connected.Motor stator is fixedly installed in the torus at motor cabinet center, and motor stator is consolidated with motor cabinet
Fixed connection.Rotor loads the centre bore of motor stator, and inner sleeve is set in around rotor and motor stator.On connecting rod
Portion is installed on connecting rod lower tip, and connecting rod top can slide up and down along connecting rod bottom.The inwall on connecting rod top and inner sleeve it is outer
It is connected through a screw thread between wall, the mounting hole inside put and the axle on rotor top pass through key connection.
Motor stator is fixed in the torus at motor cabinet center, and rotor can rotate, by rotor and electricity
The motor of machine stator composition, is a kind of p-m step motor, by by bicyclic shaped pulse signal, power driving circuit, monolithic
The forming control systems such as machine carry out speed governing to motor, and energy controlled motor realizes rotating, there is the reductor carried in motor
Structure can carry out slowing down to the rotating speed of motor increases moment of torsion.
The variable lift compression ratio linkage course of work is：When engine is in middle-low load working condition, it is necessary to high pressure
Contracting ratio, Engine ECU control system control single chip computer send positive pulse, and by the distribution and amplification of driver, finally driving walks
Stepper motor so that stepper motor rotates forward, and rotor drives inner sleeve to rotate by key axle, inner sleeve by the connection function of screw thread simultaneously
Under the constraint of connecting rod bottom and then drivening rod top is moved upwards, and connecting rod top moves up so that connecting rod total length
It is elongated, so as to improve the compression ratio of engine.
Conversely, when engine is in high load capacity operating mode, it is necessary to low compression ratio, Engine ECU control system control monolithic
Machine sends negative pulse, passes through the distribution and amplification of driver, last Driving Stepping Motor so that stepper motor inverts, and motor turns
Son drives inner sleeve to rotate by key axle, and inner sleeve is by the connection function of screw thread and under connecting rod lower constraint and then on drivening rod
Portion moves downward, and connecting rod top moves down so that connecting rod total length shortens, so as to reduce the compression ratio of engine.
Variable lift compression ratio linkage provided by the utility model, variable lift compression ratio linkage by
Motor mechanism is installed in connecting rod additional to change compression ratio, unfailing performance is high, adjusts sensitive, easy for installation, good manufacturability；Employ spiral shell
Mechanism engagement is revolved, realizes that variable compression ratio is stepless, compression ratio can be accurately controlled, meet need of the engine under different operating modes
Will；Only connecting rod inside is changed accordingly for whole engine, is not directed to cylinder head, cylinder block and bent axle etc.
Other big parts, process costs can be greatly reduced, transformation is convenient, simple in construction, and economy is high.
The utility model also provides a kind of engine, including control system and the variable lift pressure that is connected with control system
Than linkage, the variable lift compression ratio linkage is specially any of the above-described kind of variable lift compression ratio linkage for contracting.
Because above-mentioned variable lift compression ratio linkage has above-mentioned technique effect, there is the variable lift compression ratio linkage
Engine should also have corresponding technique effect.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
The structure for the variable lift compression ratio linkage that Fig. 1 is provided by a kind of embodiment in the utility model
Sectional view；
Fig. 2 is the top view of connecting rod bottom in Fig. 1；
Fig. 3 is the left view of connecting rod bottom in Fig. 1；
Fig. 4 is the front view of inner sleeve in Fig. 1；
Fig. 5 is the front view of rotor in Fig. 1；
Fig. 6 is A-A directions partial sectional view in Fig. 1；
Fig. 7 is the front view of Fig. 1 guide rings；
Fig. 8 is the sectional view of dish-shaped stage clip in Fig. 1；
Fig. 9 is the sectional view of Fig. 1 midplane thrust ball bearings.
Marked in accompanying drawing as follows：
1- connecting rods bottom, 2- motor cabinets, 3- thrusts ball bearing with flat seat, 4- connecting rods top, 5- flat keys, 6- inner sleeves, 7- motors
Rotor, 8- motor stators, 9- external screw threads, 10- back-up rings, 11- dishes stage clip, 12- guide plates, 13- prismatic table shape pits.
Embodiment
Core of the present utility model is to provide a kind of variable lift compression ratio linkage, the variable lift compression ratio connecting rod
Mechanism efficiently solves the problems such as variable compression ratio unobvious of linkage；Another core of the present utility model is to provide one
Kind includes the engine of above-mentioned variable lift compression ratio linkage.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 to Fig. 9 is refer to, Fig. 1 is compressed by the variable lift that a kind of embodiment provides in the utility model
Than the structure sectional view of linkage；Fig. 2 is the top view of connecting rod bottom in Fig. 1；Fig. 3 is the left view of connecting rod bottom in Fig. 1；
Fig. 4 is the front view of inner sleeve in Fig. 1；Fig. 5 is the front view of rotor in Fig. 1；Fig. 6 is A-A directions broken section in Fig. 1
Figure；Fig. 7 is the front view of Fig. 1 guide rings；Fig. 8 is the sectional view of dish-shaped stage clip in Fig. 1；Fig. 9 is Fig. 1 midplane thrust ball bearings
Sectional view.
In a kind of embodiment, the variable lift compression ratio connecting rod machine of engine provided by the utility model
Structure, including connecting rod bottom 1, motor cabinet 2, motor stator 8, rotor 7, inner sleeve 6, connecting rod top 4, the company of being installed on of motor cabinet 2
In the endoporus on the top of bar bottom 1, and motor cabinet 2 is fixedly connected with connecting rod bottom 1.Motor stator 8 is fixedly installed in motor cabinet 2
In torus at the heart, and motor stator 8 is fixedly connected with motor cabinet 2, that is, is set at the center of the top end face of motor cabinet 2
There is the torus for installing motor stator 8, it is fixed company that motor stator 8, which is arranged in the torus at the center of motor cabinet 22,
Connect, therefore motor stator 8 is immovable in the plane, the bottom face of motor stator 8 and the company of contact of motor cabinet 2 in torus
Connect, so as to limit the play of motor stator 8 in the axial direction.Rotor 7 loads the centre bore of motor stator 8, inner sleeve 6
It is set in around rotor 7 and motor stator 8.Connecting rod top 4 is installed on the top of connecting rod bottom 1, and connecting rod top 4 can edge
Connecting rod bottom 1 slides up and down.It is connected through a screw thread between the inwall on connecting rod top 4 and the outer wall of inner sleeve 6, the installation in inner sleeve 6
The axle in hole and the top of rotor 7 passes through key connection.
Motor stator 8 is fixed in the torus at the center of motor cabinet 2, and rotor 7 can rotate, by rotor 7
With motor stator 8 form motor, be a kind of p-m step motor, by by bicyclic shaped pulse signal, power driving circuit,
The forming control systems such as single-chip microcomputer carry out speed governing to motor, and energy controlled motor realizes rotating, has what is carried to subtract in motor
Fast mechanism can carry out slowing down to the rotating speed of motor increases moment of torsion.
The variable lift compression ratio linkage course of work is：When engine is in middle-low load working condition, it is necessary to high pressure
Contracting ratio, Engine ECU control system control single chip computer send positive pulse, and by the distribution and amplification of driver, finally driving walks
Stepper motor so that stepper motor rotates forward, and rotor 7 drives inner sleeve 6 to rotate by key axle, and inner sleeve 6 is made by the connection of screw thread
Moved upwards with and under the constraint of connecting rod bottom 1 and then drivening rod top 4, connecting rod top 4 moves up so that connecting rod
Total length is elongated, so as to improve the compression ratio of engine.
Conversely, when engine is in high load capacity operating mode, it is necessary to low compression ratio, Engine ECU control system control monolithic
Machine sends negative pulse, passes through the distribution and amplification of driver, last Driving Stepping Motor so that stepper motor inverts, and motor turns
Son 7 drives inner sleeve 6 to rotate by key axle, inner sleeve 6 constrained by the connection function of screw thread and in connecting rod bottom 1 under and then the company of drive
Bar top 4 moves downward, and connecting rod top 4 moves down so that connecting rod total length shortens, so as to reduce the compression ratio of engine.
Variable lift compression ratio linkage provided by the utility model, variable lift compression ratio linkage by
Motor mechanism is installed in connecting rod additional to change compression ratio, unfailing performance is high, adjusts sensitive, easy for installation, good manufacturability；Employ spiral shell
Mechanism engagement is revolved, realizes that variable compression ratio is stepless, compression ratio can be accurately controlled, meet need of the engine under different operating modes
Will；Only connecting rod inside is changed accordingly for whole engine, is not directed to cylinder head, cylinder block and bent axle etc.
Other big parts, process costs can be greatly reduced, transformation is convenient, simple in construction, and economy is high.
Above-mentioned variable lift compression ratio linkage is only a kind of preferred scheme, is specifically not limited thereto, basic herein
On can be made according to being actually needed with targetedly adjust, so as to obtain different embodiments, installed above motor cabinet 2
There is thrust ball bearing with flat seat 3, thrust ball bearing with flat seat 3 is that one kind can only bear axial load, it is impossible to bears the axle of radial load
Hold.Thrust ball bearing with flat seat 3 is in contact with the cylindrical ring surface of motor cabinet 2, upper surface and the inner sleeve 6 of thrust ball bearing with flat seat 3
Lower surface contact connection so that inner sleeve 6 rotates at work more to be smoothed out, regulation it is sensitiveer.
On the basis of above-mentioned embodiment, those skilled in the art can be according to the difference of specific occasion, pair can
Become lift compression ratio linkage and carry out some changes, annular groove, the bottom of inner sleeve 6 are offered on the top hole wall of connecting rod bottom 1
Torus formula projection is provided with the external cylindrical surface in portion, torus formula convex cross section is rectangle, simple in construction, easy to process.
The raised rotation conllinear with inner sleeve 6 of torus formula, Central Symmetry, stability of rotation.The mounting surface and torus of annular groove
Formula is raised concordant, is easily installed dish-shaped stage clip 11 and back-up ring 10.In mounting groove that annular groove and torus formula convex to form by
Under to Shangdi dish-shaped stage clip 11 and back-up ring 10 are installed, the torus formula projection of the bottom of inner sleeve 6 is by back-up ring 10 and dish-shaped stage clip 11
In the circular port on the top of connecting rod bottom 1, the top of inner sleeve 6, which is connected through a screw thread, loads connecting rod top 4 for downward pressure fixing
Bottom endoporus in.Also, cylindrical ring surface connects with thrust ball bearing with flat seat 3 on motor cabinet 2, on thrust ball bearing with flat seat 3
Surface connects with the cylindrical anchor ring of the lower surface of inner sleeve 6, and the torus formula projection of the bottom of inner sleeve 6 is by back-up ring 10 and dish-shaped stage clip 11
Downward pressure, therefore the play of motor cabinet 2 in the axial direction has been limited, also limit thrust ball bearing with flat seat 3 and existed
Movement on axial direction, the upper surface of thrust ball bearing with flat seat 3 and the cylindrical anchor ring of the lower surface of inner sleeve 6 is set to connect, structure is more
It is stable.
Obviously, under the guidance of this thought, those skilled in the art can be according to the difference of specific occasion to above-mentioned
Embodiment carries out some changes, the Rigid Projectiles circle that back-up ring 10 is formed for the misaligned circular arc in the inside and outside center of circle, has one
Fixed elasticity, has modulability.The section of back-up ring 10 can be in regular rectangular shape, simple in construction, easy to process.It is after the assembling of back-up ring 10
Face contact, that is to say, that contacted after assembling below back-up ring 10 with the dish-shaped face of stage clip 11, above with the terrace of appearing on the stage of annular groove
Contact, playing prevents the dish-shaped translocation of stage clip 11.Dish-shaped stage clip 11 can be the hollow annular elasticity of shape disc-like shape
Part, and top reed protrudes, lower leaf depression, enhancing elasticity.Back-up ring 10 coordinate dish-shaped stage clip 11 using also have it is fixed and
The effect of stable inner sleeve 6.
It is important to note that variable lift compression ratio linkage provided by the utility model is not intended to be limited to
Such a situation, monolithic linkage are divided into connecting rod top 4 and the part of connecting rod bottom 1 two, and there is horizontal stroke on connecting rod top 4 vertically on bottom surface
Section is the guide plate 12 of annular, there is the pilot hole for the annular being engaged with guide plate 12 on the top surface of connecting rod bottom 1,
It is exactly the pilot hole for having cross section to be annular on the top ring surface of connecting rod bottom 1 vertically, guide plate 12 inserts pilot hole
And can be slided up and down along pilot hole, the guide plate 12 on connecting rod top 4 forms the company of slip with the annular pilot hole of connecting rod bottom 1
Connect, connecting rod top 4 can move up and down in the axial direction, by the guide effect of guide plate 12 and pilot hole, can make company
Bar top 4 and connecting rod bottom 1, which are slided, more stablizes, and both are not easily disconnected from.
Variable lift compression ratio linkage provided by the utility model, in the case of other parts are immovable, electricity
Support 2 is disc-like structural member, there is prismatic table shape boss on the bottom surface of motor cabinet 2, and the quantity of prismatic table shape boss is unrestricted, can be with
To be multiple, for example four are set, four structure identical prismatic table shape boss are evenly distributed, and the bottom of connecting rod has convex with prismatic table shape
The prismatic table shape pit 13 that platform is engaged, that is, structure identical is equably provided with the bottom surface of the annular of the bottom of connecting rod
Prismatic table shape pit 13, for fixing the prismatic table shape boss of motor cabinet 2, prismatic table shape boss and the structure of prismatic table shape pit 13 are corresponding,
Position aligns, and limits rotation of the motor cabinet 2 in the top endoporus midplane of connecting rod bottom 1, realizes motor cabinet 2 and connecting rod bottom
1 be fixedly connected, it is simple in construction, it is easy to accomplish.
For the variable lift compression ratio linkage in above-mentioned each embodiment, inner sleeve 6 is columnar structured part, inner sleeve
Keyhole is provided with the mounting hole at 6 tops, inner sleeve 6 and the axle on the top of rotor 7 are assembled by flat key 5, and flat key 5 connects
Torque is transmitted, rotor 7 drives inner sleeve 6 to rotate by key axle, it is easy to accomplish, and simple in construction, convenient disassembly, centering
It is good.
External screw thread 9 is provided with the outer wall of inner sleeve 6, internal thread, internal thread and external screw thread 9 are provided with the inwall of connecting rod top 4
It is engaged, when connecting rod top 4 is slided along connecting rod bottom 1, connecting rod top 4 rotates around inner sleeve 6, and stability is preferable.Internal thread and
The number of turns of external screw thread 9 is unrestricted, can be according to the different sets itselfs of particular condition in use, for example sets four circles.External screw thread 9
It is unrestricted with the shape of internal thread, can be triangle thread, or trapezoidal thread, now screw thread be shaped as triangle
Shape is trapezoidal, other suitable shapes is can also be, all in the scope of protection of the utility model.
In order to further optimize above-mentioned technical proposal, one end that rotor 7 is connected with inner sleeve 6 is key axle, with torus
One end of connection is optical axis, and the shaft shoulder is provided between key axle and optical axis, the rotation conllinear of key axle, the shaft shoulder and optical axis, is easy to
Installation positioning.The external diameter of optical axis is identical with the internal diameter of the centre bore of motor stator 8, and assembly precision is preferable, stable movement, is not easy to shake
It is dynamic.
On the basis of above-mentioned each specific embodiment, the inner bottom surface of the mounting hole of inner sleeve 6 and the shaft shoulder top of rotor 7
End contact connects, and the bottom surface of the shaft shoulder of rotor 7 contacts connection with the top end face of the torus of motor stator 8, prevents motor
The play of rotor 7 and motor stator 8 in the axial direction, so that motor is fixed on motor cabinet 2.
Based on the variable lift compression ratio linkage provided in above-described embodiment, the utility model additionally provides a kind of hair
Motivation, the engine includes control system and the variable lift compression ratio linkage being connected with control system, wherein variable
Lift compression ratio linkage is any one variable lift compression ratio linkage in above-described embodiment.Because the engine is adopted
With the variable lift compression ratio linkage in above-described embodiment, so the beneficial effect of the engine refer to above-mentioned implementation
Example.
, it is necessary to which the orientation or position of the instruction such as explanation, term is upper and lower, bottom are closed in description of the present utility model
It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as to limitation of the present utility model.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. the variable lift compression ratio linkage of a kind of engine, it is characterised in that including connecting rod bottom (1), be installed on institute
The motor cabinet (2) stating in the endoporus on connecting rod bottom (1) top and be fixedly connected with the connecting rod bottom (1), it is installed on the electricity
Motor stator (8), the loading motor being fixedly connected in torus at support (2) center and with the motor cabinet (2) are determined
Rotor (7) in the centre bore of sub (8), it is set in the inner sleeve of the rotor (7) and the motor stator (8) around
(6) connecting rod bottom (1) top and the connecting rod top (4) that can be slided up and down along the connecting rod bottom (1), are installed on, it is described
Be connected through a screw thread between the inwall on connecting rod top (4) and the outer wall of the inner sleeve (6), the mounting hole on the inner sleeve (6) with
The axle on rotor (7) top passes through key connection.
2. variable lift compression ratio linkage according to claim 1, it is characterised in that the motor cabinet (2) it is upper
Face is provided with thrust ball bearing with flat seat (3), and the thrust ball bearing with flat seat (3) is in contact with the cylindrical ring surface of motor cabinet (2),
The upper surface of the thrust ball bearing with flat seat (3) contacts connection with the lower surface of the inner sleeve (6).
3. variable lift compression ratio linkage according to claim 2, it is characterised in that the connecting rod bottom (1)
Top offers annular groove, and it is convex that the torus formula that cross section is rectangle is provided with the external cylindrical surface of inner sleeve (6) bottom
Rise, the torus formula is raised with the rotation conllinear of the inner sleeve (6), the mounting surface of the annular groove and the annulus
Body formula is raised concordant, and dish is provided with from the bottom to top in the mounting groove that the annular groove and the torus formula convex to form
Stage clip (11) and back-up ring (10).
4. variable lift compression ratio linkage according to claim 3, it is characterised in that the back-up ring (10) is inside and outside
The Rigid Projectiles circle that the misaligned circular arc in the center of circle is formed, its rectangular in cross-section, pressed with the dish below the back-up ring (10)
Spring (11) face contacts, and is contacted above with the terrace of appearing on the stage of the annular groove；
The dish-shaped stage clip (11) is the hollow annular elastic component of dish, and top reed protrudes, lower leaf depression.
5. the variable lift compression ratio linkage according to claim any one of 1-4, it is characterised in that on the connecting rod
Have the guide plate (12) that cross section is annular on portion (4) bottom surface vertically, have on the top surface of the connecting rod bottom (1) with it is described
The pilot hole for the annular that guide plate (12) is engaged, the guide plate (12) insert the pilot hole and can be along the guiding
Hole slides up and down.
6. variable lift compression ratio linkage according to claim 5, it is characterised in that the bottom of the motor cabinet (2)
Four structure identical prismatic table shape boss are evenly distributed on face, the bottom of the connecting rod has to match with the prismatic table shape boss
The prismatic table shape pit (13) of conjunction.
7. variable lift compression ratio linkage according to claim 5, it is characterised in that at the top of the inner sleeve (6)
Keyhole is provided with mounting hole, the inner sleeve (6) and the axle on the rotor (7) top are assembled by flat key (5), institute
State and the external screw thread (9) that four circles are engaged with the internal thread of the connecting rod top (4) is provided with inner sleeve (6) outer wall, the outer spiral shell
Line (9) and the internal thread are triangle thread or trapezoidal thread.
8. variable lift compression ratio linkage according to claim 5, it is characterised in that the rotor (7) with
One end of the inner sleeve (6) connection be key axle, and the one end being connected with the torus is optical axis, the key axle and the optical axis it
Between be provided with the shaft shoulder, the key axle, the rotation conllinear of the shaft shoulder and the optical axis, the external diameter of the optical axis and the electricity
The internal diameter of machine stator (8) centre bore is identical.
9. variable lift compression ratio linkage according to claim 8, it is characterised in that the installation of the inner sleeve (6)
The inner bottom surface in hole contacts connection with the shaft shoulder top end face of the rotor (7), the bottom surface of the shaft shoulder of the rotor (7) with
The top end face contact connection of motor stator (8) torus.
10. a kind of engine, including control system and the variable lift compression ratio linkage that is connected with the control system,
Characterized in that, the variable lift compression ratio linkage is specially the variable lift pressure described in any one of claim 1 to 9
Linkage is compared in contracting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720960288.6U CN207212493U (en) | 2017-08-02 | 2017-08-02 | A kind of engine and its variable lift compression ratio linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720960288.6U CN207212493U (en) | 2017-08-02 | 2017-08-02 | A kind of engine and its variable lift compression ratio linkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212493U true CN207212493U (en) | 2018-04-10 |
Family
ID=61817617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720960288.6U Expired - Fee Related CN207212493U (en) | 2017-08-02 | 2017-08-02 | A kind of engine and its variable lift compression ratio linkage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288753A (en) * | 2017-08-02 | 2017-10-24 | 广东工业大学 | A kind of engine and its variable lift compression ratio linkage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288753A (en) * | 2017-08-02 | 2017-10-24 | 广东工业大学 | A kind of engine and its variable lift compression ratio linkage |
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Granted publication date: 20180410 Termination date: 20200802 |