CN208546235U - A kind of variable compression ratio - Google Patents
A kind of variable compression ratio Download PDFInfo
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- CN208546235U CN208546235U CN201820804216.7U CN201820804216U CN208546235U CN 208546235 U CN208546235 U CN 208546235U CN 201820804216 U CN201820804216 U CN 201820804216U CN 208546235 U CN208546235 U CN 208546235U
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- tooth plate
- compression ratio
- cylinder block
- variable compression
- substrate
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Abstract
The utility model discloses a kind of variable compression ratios, including cylinder block, deflagrating jar and master cylinder are provided in cylinder block, it is provided with combustion piston and burning tooth plate in deflagrating jar, control piston and control tooth plate are provided in master cylinder, burns and is sequentially connected between tooth plate and control tooth plate by transmission gear, synchromesh gear is provided with by burning tooth plate, synchronous tooth plate is provided in cylinder block, deflagrating jar upper end is provided with cylinder head, and master cylinder upper end is provided with upper barrier cover；Each synchronous tooth plate includes substrate, and the rack gear of two parallel arrangements, the two sides of substrate are provided with semicircle orifice, guide groove are provided in the middle part of substrate on substrate, and the axis of symmetry three of the axis of symmetry of rack gear, the axis of symmetry of semicircle orifice and guide groove is conllinear；Semicircle orifice on two neighboring substrate shares a bolt and cylinder block is affixed.The utility model structure is simple, and can effectively reduce the installation bolt of synchronous tooth plate, while facilitating the quick assembling of combustion piston and the tooth plate that burns.
Description
Technical field
The utility model relates to a kind of variable compression ratios, belong to technical field of engines, and in particular to one kind can be real
The variation of existing combustion piston top dead center position, to realize that engine compression ratio is variable.
Background technique
Belong to international monopoly WO98/51911, WO00/31377, the WO03/008783 of Wei Yanei Mr. Lapie application,
Disclose a variety of mechanical devices of variable compression ratio engine.
The international monopoly WO98/51911 of Wei Yanei Mr. Lapie application describes a kind of device, which passes through operation
Cooperate the significance bit in-migration of subassembly to adjust engine compression ratio, changes the gross efficiency of internal-combustion piston engine with this.
The international monopoly WO00/31377 and WO03/008783 applied from Wei Yanei Mr. Lapie is it can be found that variable
The mechanical driving device of compression ratio engine includes at least one cylinder, and piston can be movable within, and the lower part of piston is fixed
To burning tooth plate, which is moved synchronously by pinion rack and synchromesh gear track-type facilities, and side passes through big rack gear
It is engaged with the transmission gear being connected on connecting rod, so as to the passing movement between piston and connecting rod.Control the fortune up and down of piston
It is dynamic, it can be by control tooth plate, transmission gear and burning tooth plate, so that the top dead center position of combustion piston generates under degree of correspondence
Upper movement, to realize reduction/increase of increase/reduction of combustion chamber volume, engine compression ratio.
But there is no the structure of open synchronous tooth plate in above-mentioned patent, the general synchronization tooth plate is using four spiral shells
Bolt is directly secured to the side of cylinder block, if there is n synchronous tooth plate, needs 6n bolt, undoubtedly needs to occupy so very much
Cylinder block space, increase the weight of cylinder block.Meanwhile combustion piston and burning tooth plate are circumferential fixed due to existing in that patent
Position, so being to be not easy to fire when the installation site for the positioning pin for being connected to combustion piston between the tooth plate that burns can not be observed
Burn the connection of piston and the tooth plate that burns.
Summary of the invention
In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to provide a kind of pressure-variables
Contracting is not only simple in structure, and can effectively reduce the installation bolt of synchronous tooth plate, while facilitating combustion piston than mechanism
With the quick assembling of burning tooth plate.
In order to solve the above technical problems, the utility model uses such a variable compression ratio, including cylinder block,
It is provided with deflagrating jar and master cylinder in cylinder block, combustion piston and burning tooth plate are provided in deflagrating jar, is provided in master cylinder
Piston and control tooth plate are controlled, burns and is sequentially connected between tooth plate and control tooth plate by transmission gear, setting by control tooth plate
There is side compression device, is provided with synchromesh gear by the tooth plate that burns, is provided in cylinder block for engaging the same of guiding with synchromesh gear
Tooth plate is walked, deflagrating jar upper end is provided with the cylinder head for sealing, and master cylinder upper end is provided with the upper barrier cover for sealing；It is synchronous
The number of tooth plate and the number of deflagrating jar are corresponding, and each synchronous tooth plate includes substrate, the rack gear of two parallel arrangements on substrate,
The two sides of substrate are provided with semicircle orifice, are provided with guide groove in the middle part of substrate, the axis of symmetry of the axis of symmetry of rack gear, semicircle orifice
It is conllinear with the axis of symmetry three of guide groove；Semicircle orifice on two neighboring substrate shares a bolt and cylinder block is affixed.
In a kind of preferred embodiment of the utility model, the side of cylinder block has been removably installed housing, housing
It is corresponding that the position being installed in cylinder block with synchronous tooth plate is installed on the position in cylinder block.
In a kind of preferred embodiment of the utility model, it is provided with the boss with semicircle orifice in cylinder block, is located at
Semicircle orifice on the substrate at both ends and the shared bolt of semicircle orifice on the cylinder block boss are affixed.
In a kind of preferred embodiment of the utility model, synchronous tooth plate is integrated on housing, synchronizes tooth plate at this time
Semicircle orifice, which can be set, in side can also be not provided with semicircle orifice, and when semicircle orifice is arranged, synchronous tooth plate and housing can use spiral shell
It tethers and connects, when being not provided with bolt hole, the two welding.(can be integral type processing, can be welding or other modes)
In a kind of preferred embodiment of the utility model, it is provided between combustion piston and burning tooth plate for circumferential
The positioning pin of limit, the upper observation hole for being provided with dowel hole and being connected to upper dowel hole on combustion piston, burn tooth plate
On the lower observation hole that is provided with lower dowel hole and is connected to lower dowel hole.
In a kind of preferred embodiment of the utility model, controls and be connected with magnetic pole assembly in the middle part of tooth plate.
In a kind of preferred embodiment of the utility model, the outer circumference surface for controlling piston is arc.
In a kind of preferred embodiment of the utility model, upper barrier cover includes door portion and ceiling plate portion, is set in ceiling plate portion
It is equipped with multiple door portions, its circumferential direction is provided with sealing ring in each door portion.
The beneficial effects of the utility model are: the utility model structure is simple, easy to use, by synchronous tooth plate
Fixation can be completed to realize the shared column bolt of two neighboring synchronous tooth plate in design semicircle orifice, if there is n synchronous tooth plate,
It only needs 3n+3 bolt that synchronous tooth plate can be realized to fix, can also will further design housing in cylinder block, and
Integrated synchronous tooth plate is on housing to only need 4 bolts that the connection of synchronous tooth plate and cylinder block can be realized, so greatly
Reduce the quantity for fixing synchronous gear crab bolt, reduces the weight of cylinder block complete machine, be conducive to arrange, shorten engine
Whole length (it may be noted that housing be it is required, the fixing bolt between housing and cylinder block be also it is required, after integrating, on
The 3n+3 bolt stated can be cancelled)；The present invention is by being arranged peep hole on combustion piston, burning tooth plate, to facilitate
The Fast Installation of positioning pin；Magnetic pole assembly by being set to the middle part of control tooth plate to be conducive to shorten engine by the present invention
Complete machine height is convenient for Arrangement of Engine-room；The present invention is designed as the arc-shaped circular arc for seeing diagram mark by that will control piston outer periphery face
R, R value need to adjust according to the actual situation, be conducive to improve its fretting wear between master cylinder cylinder sleeve.
Detailed description of the invention
Fig. 1 is a kind of general structure schematic diagram of variable compression ratio of the utility model embodiment；
Fig. 2 is that a kind of synchronization tooth plate of variable compression ratio of the utility model embodiment and the separate structure of housing are shown
It is intended to；(synchronous tooth plate is affixed by bolt and cylinder block, and housing is affixed by bolt and cylinder block)
Fig. 3 is a kind of synchronization tooth plate schematic diagram of variable compression ratio of the utility model embodiment；
Fig. 4 is that a kind of synchronization tooth plate of variable compression ratio of the utility model embodiment and the integrated structure of housing show
It is intended to
Fig. 5 is a kind of burning tooth plate label slot structure schematic diagram of variable compression ratio of the utility model embodiment；
Fig. 6 is a kind of burning tooth plate labeled slots main view of variable compression ratio of the utility model embodiment；
Fig. 7 is a kind of burning tooth plate labeled slots cross-sectional view of variable compression ratio of the utility model embodiment；
Fig. 8 is a kind of magnetic pole assembly arrangement signal of the control tooth plate of variable compression ratio of the utility model embodiment
Figure；
Fig. 9 is a kind of control piston schematic diagram of variable compression ratio of the utility model embodiment；
Figure 10 is a kind of master cylinder upper barrier cover of variable compression ratio of the utility model embodiment and the separate type of cover board
Structural schematic diagram；
Figure 11 is a kind of master cylinder upper barrier cover of variable compression ratio of the utility model embodiment and the integrated form of cover board
Structural schematic diagram；
Figure 12 is a kind of scheme of installation of the master cylinder upper barrier cover of variable compression ratio of the utility model embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
The invention discloses a kind of variable compression ratios comprising cylinder block 1 is provided with deflagrating jar 2 in cylinder block 1
With master cylinder 3, it is provided with combustion piston 6 and burning tooth plate 7 in deflagrating jar 2, is provided with control piston 13 and control in master cylinder 3
Tooth plate 16 burns and is sequentially connected between tooth plate 7 and control tooth plate 16 by transmission gear 8, controls and be provided with side pressure by tooth plate 16
Tight device 30 is provided with synchromesh gear 14 by the tooth plate 7 that burns, and is provided in cylinder block 1 and is oriented to for engage with synchromesh gear 14
Synchronous tooth plate 15,2 upper end of deflagrating jar are provided with the cylinder head 4 for sealing, and 3 upper end of master cylinder is provided with the upper gear for sealing
Lid 5；The number of synchronous tooth plate 15 is corresponding with the number of deflagrating jar 2, and each synchronous tooth plate 15 includes substrate 15.1, substrate 15.1
The rack gear 15.2 of upper two parallel arrangements, the two sides of substrate 15.1 are provided with semicircle orifice 15.3, and the middle part of substrate 15.1 is provided with
Guide groove 15.4, the axis of symmetry three of the axis of symmetry of rack gear 15.2, the axis of symmetry of semicircle orifice 15.3 and guide groove 15.4
Collinearly.The side of cylinder block 1 has been removably installed housing 1.1, and housing 1.1 is installed on position and synchronous gear in cylinder block 1
The position that plate 15 is installed in cylinder block 1 is corresponding.Synchronous tooth plate 15 is welded on housing 1.1.Combustion piston 6 and burning tooth plate
The positioning pin 6.1 for circumferentially limiting is provided between 7, be provided on combustion piston 6 dowel hole and with upper dowel hole
The upper observation hole 6.2 of connection, the lower observation hole 7.1 that is provided with lower dowel hole and is connected to lower dowel hole on the tooth plate 7 that burns.
The middle part of control tooth plate 16 is connected with magnetic pole assembly 16.1.The outer circumference surface for controlling piston 13 is arc.Upper barrier cover 5 includes door
Portion 5.1 and ceiling plate portion 5.2 are provided with multiple door portions 5.1 in ceiling plate portion 5.2, are circumferentially arranged in each door portion 5.1 along it
There is sealing ring 5.3, there are two bolts hole for setting in ceiling plate portion 5.2.
Figure of description 1 shows cylinder block 1 comprising deflagrating jar 2 and master cylinder 3.Deflagrating jar 2 is sealed by cylinder head 4,
Master cylinder is sealed by upper barrier cover 5.Combustion piston 6 in deflagrating jar 2 along cylinder-bore axis move back and forth, the lower part of combustion piston 6 with
Burning tooth plate 7 is connected using fastener.Burning tooth plate 7 and transmission gear 8 form a pair of of gear pair, and combustion piston 6 drives burning
When tooth plate 7 moves reciprocatingly in deflagrating jar 2, burning tooth plate 7 and transmission gear 8 do gear gear motion.Transmission gear 8 passes through
Pin 9 is connect with small end of connecting rod 10, and big end 11 is connect with crank-shaft link neck 12.It controls piston 13 and control tooth plate 16 uses tightly
Firmware connection, control tooth plate 16 and transmission gear 8 form a pair of of gear pair.Machine oil is full of in master cylinder 3, without adjusting compression
Than when, control piston 13 and control 16 position of tooth plate fix, when combustion piston 6 in deflagrating jar 2 along axis move back and forth when, control
The meshing point of tooth plate 16 processed and transmission gear 8 forms fulcrum, and active force can be by pin 9 through small end of connecting rod 10, big end 11
It is transferred to crank-shaft link neck 12；When needing to adjust compression ratio, control piston 13 and control 16 position of tooth plate be can move up and down, and be fired
Burn 6 position of piston is influenced and, compression ratio change mobile to the mobile opposite direction of control tooth plate 16 by transmission gear 8.
To guarantee that combustion piston 6 does the reciprocating motion along cylinder-bore axis in deflagrating jar 2, it is arranged behind burning tooth plate 7
The synchromesh gear 14 of guiding, synchromesh gear 14 roll on synchronous tooth plate 15, and synchronous tooth plate 15 is fixed on using fastener
In cylinder block 1.Combustion piston 6, burn tooth plate 7, and transmission gear 8 controls tooth plate 16, and pin 9 constitutes variable compression ratio engine
Actuating unit.Synchronous tooth plate 15, synchromesh gear 14 are the guiding devices of burning tooth plate 7.Side compression device 30 acts on control
16 lower support face 17 of tooth plate processed, to guarantee synchronous tooth plate 15, synchromesh gear 14, burn tooth plate 7, and transmission gear 8 controls tooth plate
16 contact with each other.
Figure of description 2 is the separate structure schematic diagram of synchronous tooth plate and housing.The synchronization tooth plate 15 of every cylinder passes through tight
Firmware is separately installed in 1 side of cylinder block, then housing 1.1 is installed on 1 side of cylinder block by fastener, is used to seal crankshaft
Oil gas in case.The synchronization tooth plate of two adjacent cylinder shares 1 column fastener, is conducive to arrange, shortens engine whole length, simultaneously
It reduces fastener quantity, reduce cost.
Figure of description 3 is the integrated structure schematic diagram of synchronous tooth plate and housing.The synchronization tooth plate 15 of every cylinder is integrated in
On housing 1.1, then it is mounted as a whole on 1 side of cylinder block.The rigidity of integrated structure is more preferable, deformation when bearing load is smaller,
Fastener quantity can be reduced, reduce cost simultaneously.
Figure of description 4-6 is that burning tooth plate marks slot structure schematic diagram.Exist between combustion piston 6 and burning tooth plate 7
Positioning pin 6.1 after linking together by fastener, need to be inserted into combustion by the stepped hole of burning tooth plate 7 by circumferential position relationship
In the dowel hole for burning tooth plate 7 and combustion piston 6.The dowel hole of the two is in inside parts, is not easy to identify, therefore is firing
It burns and is disposed with upper observation hole 6.2 on the outside of piston 6, is disposed with lower observation hole 7.1 on the outside of burning tooth plate 7.
Figure of description 7 is the magnetic pole assembly arrangement schematic diagram for controlling tooth plate.Magnetic pole assembly 16.1 is installed by fastener
In on control tooth plate 16.Magnetic pole assembly is arranged in middle part, is conducive to shorten engine complete machine height, is convenient for Arrangement of Engine-room.
Figure of description 8 is control piston schematic diagram.By controlling the size grouping of depth pistion, it can be achieved that engine fills
After matching on the same stage different cylinders and not on the same stage between maximum compression ratio it is consistent.Specially each cylinder combustion piston is pressed when being located at top dead centre
Contracting is than maximum, by the suitable control piston of apolegamy height, to guarantee control piston bottom surface and the master cylinder lower block of each cylinder at this time
The distance between disk is consistent.Control the circle that piston outer periphery is not cylindrical, and there is outer circle molded line (arc) to see that diagram marks
Arc R, R value need to adjust according to the actual situation, be conducive to improve its fretting wear between master cylinder cylinder sleeve.
Figure of description 9 is the separate structure schematic diagram of master cylinder upper barrier cover and cover board.Master cylinder upper barrier cover portion 5.1 with
Ceiling plate portion 5.2 is separation.It is contacted at the top of 5.1 bottom of master cylinder upper barrier cover portion and master cylinder cylinder sleeve, it is close in seal groove
Seal 5.3 and master cylinder bottom outlet, which are formed, to be sealed.Each cylinder that ceiling plate portion 5.2 can be diagram is independent, and be also possible to integrated form can
4 fasteners in attached drawing 11 at A are reduced to 2 or are all saved.
Figure of description 10 and Figure 11 are the integrated structure schematic diagram of master cylinder upper barrier cover and cover board.Master cylinder upper barrier cover
It with the integrated structure of cover board, is formed and is sealed by sealing ring 5.3 and master cylinder cylinder sleeve, the work for advantageously reducing fastener carries
Lotus, at this point, two bolts of part shown in the A of Figure 12 can be reduced to 1 or all save.
It should be understood that the above is only the specific embodiments of the utility model, but the protection scope of the utility model
It is not limited thereto, anyone skilled in the art can be thought easily in the technical scope disclosed by the utility model
The change or replacement arrived, should be covered within the scope of the utility model.
Claims (9)
1. a kind of variable compression ratio, including cylinder block (1), the cylinder block (1) is interior to be provided with deflagrating jar (2) and master cylinder
(3), it is provided with combustion piston (6) and burning tooth plate (7) in the deflagrating jar (2), control is provided in the master cylinder (3) and is lived
(13) and control tooth plate (16) are filled in, are driven between the burning tooth plate (7) and the control tooth plate (16) by transmission gear (8)
Connection, the control tooth plate (16) is other to be provided with side compression device (30), is provided with synchromesh gear by the burning tooth plate (7)
(14), the synchronous tooth plate (15) for being oriented to synchromesh gear (14) engagement, the deflagrating jar are provided on the cylinder block (1)
(2) upper end is provided with the cylinder head (4) for sealing, and master cylinder (3) upper end is provided with the upper barrier cover (5) for sealing；
It is characterized by: the number of the synchronous tooth plate (15) is corresponding with the number of the deflagrating jar (2), each synchronous tooth plate
It (15) include substrate (15.1), the rack gear (15.2) of upper two parallel arrangements of substrate (15.1), the substrate (15.1)
Two sides are provided with semicircle orifice (15.3), are provided with guide groove (15.4) in the middle part of the substrate (15.1), the rack gear (15.2)
The axis of symmetry, the semicircle orifice (15.3) the axis of symmetry and the guide groove (15.4) axis of symmetry three it is conllinear；Phase
Semicircle orifice (15.3) on adjacent two substrates (15.1) shares a bolt and cylinder block (1) is affixed.
2. a kind of variable compression ratio according to claim 1, it is characterised in that: be provided on the cylinder block (1)
On boss with semicircle orifice, semicircle orifice (15.3) on the substrate (15.1) at both ends and the cylinder block (1) boss
It is affixed that semicircle orifice shares a bolt.
3. a kind of variable compression ratio according to claim 1, it is characterised in that: the side of the cylinder block (1) can
It is releasably equipped with housing (1.1), the synchronous tooth plate (15) is integrated on the housing (1.1).
4. a kind of variable compression ratio according to claim 1, it is characterised in that: the combustion piston (6) with it is described
It is provided with the positioning pin (6.1) for circumferentially limiting between burning tooth plate (7), is provided with positioning on the combustion piston (6)
Pin hole and the upper observation hole being connected to upper dowel hole (6.2) are provided with lower dowel hole on the burning tooth plate (7) and under
The lower observation hole (7.1) of dowel hole connection.
5. a kind of variable compression ratio according to claim 1, it is characterised in that: the middle part of control tooth plate (16)
It is connected with magnetic pole assembly (16.1).
6. a kind of variable compression ratio according to claim 1, it is characterised in that: the outer circle of control piston (13)
Circumferential surface is arc.
7. a kind of variable compression ratio according to claim 1, it is characterised in that: the upper barrier cover (5) includes door
Portion (5.1) and ceiling plate portion (5.2) are provided with multiple door portions (5.1), each door on the ceiling plate portion (5.2)
Its circumferential direction is provided with sealing ring (5.3) in portion (5.1).
8. a kind of variable compression ratio according to claim 7, it is characterised in that: the door portion (5.1) and described
Ceiling plate portion (5.2) adopts a split structure.
9. a kind of variable compression ratio according to claim 7, it is characterised in that: the door portion (5.1) and described
Ceiling plate portion (5.2) uses integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804216.7U CN208546235U (en) | 2018-05-28 | 2018-05-28 | A kind of variable compression ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804216.7U CN208546235U (en) | 2018-05-28 | 2018-05-28 | A kind of variable compression ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208546235U true CN208546235U (en) | 2019-02-26 |
Family
ID=65420350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820804216.7U Active CN208546235U (en) | 2018-05-28 | 2018-05-28 | A kind of variable compression ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208546235U (en) |
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2018
- 2018-05-28 CN CN201820804216.7U patent/CN208546235U/en active Active
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