CN104696039B - Engine decompression starting formula air distributing device - Google Patents
Engine decompression starting formula air distributing device Download PDFInfo
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- CN104696039B CN104696039B CN201510106278.1A CN201510106278A CN104696039B CN 104696039 B CN104696039 B CN 104696039B CN 201510106278 A CN201510106278 A CN 201510106278A CN 104696039 B CN104696039 B CN 104696039B
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- China
- Prior art keywords
- wheel body
- mixing wheel
- mixing
- cylinder
- cylinder cap
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a kind of engine decompression starting formula air distributing device, including cylinder cap, valve, mixing wheel body and controlling organization；The valve is located at cylinder cap and by the mixing wheel body powered motion；The mixing wheel body mode can be rotationally connected with cylinder cap in axial sliding, and mixing wheel body includes the cam and roller coaxially connected；The controlling organization, which is connected between mixing wheel body and cylinder cap, to be used to drive mixing wheel body to slide axially and carry out axially position to mixing wheel body；The engine decompression starting formula air distributing device of the present invention, pass through the improvement of cam shape shaft and its mounting structure, axial movement camshaft is the decompression starting that engine can be achieved, it is simple in construction, good operation stability, the volume and power for starting motor can be reduced, total quality is reduced, it is final to reduce oil consumption and auto cost.
Description
Technical field
The present invention relates to engine fittings, more particularly to engine decompression starting formula air distributing device.
Background technology
Engine valve realizes opening and closing using bent axle power and chain sprocket transmission, in suction stroke, is taken out by piston
Suck enters cylinder oil jetting combustion, and gas expansion promotes piston movement acting to produce power, is then then exhausted from burning waste gas, existing
In the hybrid vehicle of popular start and stop technology, often start and flame-out, using the automobile of start and stop technology, instantaneous vehicle is opened
Dynamic, rotating speed mutation is big, and the compression stroke of engine causes great resistance to startup, it is necessary to which starting motor provides larger turn
Square and power, start high energy consumption.
The content of the invention
In view of this, it is an object of the invention to provide a kind of engine decompression starting formula air distributing device, camshaft shape is passed through
The improvement of shape and its mounting structure, axial movement camshaft is the decompression starting that engine can be achieved, simple in construction, stable
Property it is good, the volume and power for starting motor can be reduced, total quality is reduced, it is final to reduce oil consumption and auto cost.
The engine decompression starting formula air distributing device of the present invention, including cylinder cap, valve, mixing wheel body and controlling organization；Institute
Valve is stated located at cylinder cap and by the mixing wheel body powered motion；It is described to mix wheel body mode to rotate company in axial sliding
Cylinder cap is connected to, mixing wheel body includes the cam and roller coaxially connected；The controlling organization be connected to mixing wheel body and cylinder cap it
Between be used for drive mixing wheel body slide axially and to mixing wheel body carry out axially position；
Further, the maximum radius of the cam lobe part is identical with roller radius；
Further, smoothly transitted between the cam and roller；
Further, the cam and roller are integrally formed；
Further, the controlling organization includes two-way cylinder；The cylinder barrel of the two-way cylinder is fixed on the cylinder cap,
The piston rod of two-way cylinder is connected to mixing wheel body；The piston rod of two-way cylinder is parallel with mixed wheel body axis；
Further, the controlling organization can also be the combination of one-way cylinder and spring；The one-way cylinder and bullet
Spring is respectively in the axial both sides of mixing wheel body, and the cylinder barrel of one-way cylinder is fixed on the cylinder cap, and the piston rod of one-way cylinder connects
It is connected to mixing wheel body；The piston rod of one-way cylinder is parallel with mixed wheel body axis, the axial bullet top of spring edge mixing wheel body
Between mixing wheel body and cylinder cap；
Further, the spring is provided with thrust bearing between wheel body with mixing；
Further, the controlling organization can also be screw pair；The leading screw of the screw pair is with mixing wheel body
Diameter parallel is simultaneously rotationally connected with cylinder cap around its axis single-degree-of-freedom；The nut of screw pair is connected to mixing wheel body.
The beneficial effects of the invention are as follows：The engine decompression starting formula air distributing device of the present invention, by cam shape shaft and
The improvement of its mounting structure, axial movement camshaft is the decompression starting that engine can be achieved, simple in construction, operation stability
It is good, the volume and power for starting motor can be reduced, total quality is reduced, it is final to reduce oil consumption and auto cost.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is mixing wheel body structural representation.
Embodiment
Fig. 1 is the structural representation of the present invention, and Fig. 2 is mixing wheel body structural representation, as shown in the figure：The hair of the present embodiment
Motivation decompression starting formula air distributing device, including cylinder cap 1, valve 2, mixing wheel body 3 and controlling organization；The valve 2 is located at cylinder cap 1
And by the mixing powered motion of wheel body 3；The mixing wheel body 3 is mixed with that mode can be rotationally connected with cylinder cap 1 in axial sliding
Close cam 3a and roller 3c that wheel body 3 includes coaxially connecting；The controlling organization is connected between mixing wheel body 3 and cylinder cap 1 and used
Slid axially in driving mixing wheel body 3 and axially position is carried out to mixing wheel body 3；Mix wheel body 3 and rotated by its wheel shaft 3b and connected
It is connected to cylinder cap 1 and is connected by timing chain and sprocket wheel 7 in engine crankshaft, and then rotation is driven by bent axle, sprocket wheel 7 is consolidated
It is connected due to the wheel shaft 3b of mixing wheel body 3 or between wheel shaft 3b by spline synchronous axial system, sprocket wheel 7 is driven wheel shaft
3b and mixing wheel body 3 are rotated, and the object of the invention can be realized, when being connected between sprocket wheel 7 and wheel shaft 3b by spline synchronous axial system
When, wheel shaft 3b is not hindered and sliding axially for wheel body 3 is mixed, and now needs to be provided on cylinder cap 1 to carry out axial direction to sprocket wheel 7
The positioner (not shown in figure, coordinating supporting structure to be that can be achieved using thrust bearing of the prior art) of positioning；Control
Mechanism can be connected between wheel body 3 with mixing by shift fork, and annular groove is set in the mixing wheel shaft 3b of wheel body 3 excircle correspondence shift fork,
Enable controlling organization reliably to drive mixing wheel body 3 to slide axially, and do not hinder to mix the rotation of wheel body 3；Cam 3a's is convex
Phase of the part relative to the mixing circumferencial direction of wheel body 3 is played along the mixing axially consecutive change of wheel body 3, therefore cam 3a acts on gas
Mixing wheel body 3 is carried out after the positioning of axially different position by controlling organization during door 2, the start-up time of valve 2 can occurs
Change, realizes that valve timing is variable；Cam 3a bossing is around the mixing axis of wheel body 3 twist structure；Produce cam 3a
Raw continuous phase place change, and then the start-up time of valve 2 can be continuously adjusted within the specific limits, it can preferably adapt to start
Machine operating mode, improves power performance and fuel economy；When the roller 3c for mixing wheel body 3 acts on valve 2, valve is in normally opened
State, is discharged in compression stroke stage air at exhaust valve, plays a part of starting decompression, and then realize subtracting for vehicle energy saving
The purpose of row；The engine decompression starting formula air distributing device of the present invention is used for single-cylinder engine or multicylinder engine, and mixing
Wheel body 3 directly drives valve 2 or drives valve 2 to move by rocking arm, within the scope of the present invention.
In the present embodiment, the maximum radius of the cam 3a bossings is identical with roller 3c radiuses；Act on roller 3c
Keep cam 3a to act on the maximum opening of the generation of valve 2 when valve 2, improve decompression starting effect.
In the present embodiment, smoothly transitted between the cam 3a and roller 3c；Mixing wheel body 3 can be made in holding and valve 2
Smoothly slided in the case of being in contact, mixing wheel body 3 can be controlled to slide under engine start state, according to the actual work of engine
Condition is reasonably controlled, and improves power performance, easy to use.
In the present embodiment, the cam and roller are integrally formed；Overall construction intensity is high, and stability is good, service life
Long, it is easy to process and assemble.
In the present embodiment, the controlling organization includes two-way cylinder；The cylinder barrel of the two-way cylinder is fixed on described
Cylinder cap 1, the piston rod of two-way cylinder is connected to mixing wheel body 3；The piston rod of two-way cylinder is put down with mixing the axis of wheel body 3
OK；The piston rod of two-way cylinder is connected between wheel body 3 with mixing by shift fork, in the mixing wheel shaft 3b of wheel body 3 excircle pair
Answer shift fork that annular groove is set, two-way cylinder can reliably drive mixing wheel body 3 to slide axially, and not hinder to mix wheel body 3
Rotate.
In the present embodiment, the controlling organization includes the combination of one-way cylinder 4 and spring 5；The He of one-way cylinder 4
Spring 5 is respectively in the axial both sides of mixing wheel body 3, and the cylinder barrel of one-way cylinder 4 is fixed on the cylinder cap 1, the work of one-way cylinder 4
Stopper rod is connected to mixing wheel body 3；The piston rod of one-way cylinder 4 is with mixing the diameter parallel of wheel body 3, and the spring 5 is along mixed wheel
The axial bullet of body 3 is peaked between mixing wheel body 3 and cylinder cap 1；Mixing wheel body 3 is resetted using the elastic force of spring 5, structure letter
Single, energy consumption is low, it is possible to decrease use cost, and the piston rod of one-way cylinder 4 is connected between wheel body 3 with mix by shift fork, is being mixed
The excircle correspondence shift fork for closing the wheel shaft 3b of wheel body 3 sets annular groove, and one-way cylinder 4 can reliably drive mixing wheel body 3 axially
Slide, and do not hinder to mix the rotation of wheel body 3.
In the present embodiment, the spring 5 is provided with thrust bearing 8 between wheel body 3 with mixing, and improves spring 5 with mixing wheel body 3
Between attachment structure stability, and mixing wheel body 3 and spring 5 each good work are can guarantee that when wheel body 3 works mixing
Make state.
In the present embodiment, the controlling organization includes screw pair；The leading screw of the screw pair is with mixing wheel body 3
Diameter parallel is simultaneously rotationally connected with cylinder cap 1 around its axis single-degree-of-freedom；The nut of screw pair is connected to mixing wheel body 3；Silk
The nut of thick stick pair of nut is connected together with mixing the wheel shaft 3b of wheel body 3, and the wheel shaft 3b of mixing wheel body 3, which is provided with, to be used to supply leading screw spiral shell
The annular groove of female secondary nut suit；It can be rotated using servomotor driving leading screw.
Controlling organization also include automatic control system, the automatic control system include be fixed on cylinder cap 1 be used for detect
Mix the displacement transducer 6 of the axial location of wheel body 3；The signal output part of displacement transducer 6 is connected to vehicle ECU, ECU calculate into
The phase angle of valve 2 and the start-up time of optimal valve 2 is calculated according to engine operating condition and send control signal to double acting oil
The drive mechanism of cylinder, one-way cylinder 4 or screw pair, and then drive mixing wheel body 3 to slide axially and enter to mixing wheel body 3
Row axially position, realizes closed-loop control；Other check that the structure and mode at mixing wheel body 3 phase angle also fall into this in the prior art
Scope of patent protection.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (7)
1. a kind of engine decompression starting formula air distributing device, it is characterised in that：Including cylinder cap, valve, mixing wheel body and control machine
Structure；The valve is located at cylinder cap and by the mixing wheel body powered motion；The mixing wheel body is with being capable of mode in axial sliding
Cylinder cap is rotationally connected with, mixing wheel body includes the cam and roller coaxially connected；The controlling organization be connected to mixing wheel body and
It is used to drive mixing wheel body to slide axially and carry out axially position to mixing wheel body between cylinder cap；The bossing of cam is around mixing
Take turns body axis twist structure；The maximum radius of cam lobe part is identical with roller radius.
2. engine decompression starting formula air distributing device according to claim 1, it is characterised in that：The cam and roller it
Between smoothly transit.
3. engine decompression starting formula air distributing device according to claim 2, it is characterised in that：The cam and roller one
It is body formed.
4. engine decompression starting formula air distributing device according to claim 3, it is characterised in that：The controlling organization includes
Two-way cylinder；The cylinder barrel of the two-way cylinder is fixed on the cylinder cap, and the piston rod of two-way cylinder is connected to mixed wheel
Body；The piston rod of two-way cylinder is parallel with mixed wheel body axis.
5. engine decompression starting formula air distributing device according to claim 3, it is characterised in that：The controlling organization includes
The combination of one-way cylinder and spring；The one-way cylinder and spring are respectively in the axial both sides of mixing wheel body, one-way cylinder
Cylinder barrel be fixed on the cylinder cap, the piston rod of one-way cylinder is connected to mixing wheel body；The piston rod of one-way cylinder is with mixing
Wheel body diameter parallel is closed, the spring is peaked between mixing wheel body and cylinder cap along the axial bullet of mixing wheel body.
6. engine decompression starting formula air distributing device according to claim 5, it is characterised in that：The spring and mixed wheel
Thrust bearing is provided between body.
7. engine decompression starting formula air distributing device according to claim 3, it is characterised in that：The controlling organization includes
Screw pair；The leading screw of the screw pair is parallel with mixed wheel body axis and is rotationally connected with around its axis single-degree-of-freedom
Cylinder cap；The nut of screw pair is connected to mixing wheel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106278.1A CN104696039B (en) | 2015-03-11 | 2015-03-11 | Engine decompression starting formula air distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106278.1A CN104696039B (en) | 2015-03-11 | 2015-03-11 | Engine decompression starting formula air distributing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696039A CN104696039A (en) | 2015-06-10 |
| CN104696039B true CN104696039B (en) | 2017-08-01 |
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ID=53343528
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106278.1A Active CN104696039B (en) | 2015-03-11 | 2015-03-11 | Engine decompression starting formula air distributing device |
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| CN (1) | CN104696039B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963169A (en) * | 2006-11-10 | 2007-05-16 | 陈庆云 | Pressure-release cylinder-variable oil-saving engine |
| CN2913619Y (en) * | 2006-04-14 | 2007-06-20 | 江门市硕普科技开发有限公司 | Engine self-adaptive spiracle phase apparatus |
| CN101368517A (en) * | 2008-08-13 | 2009-02-18 | 奇瑞汽车股份有限公司 | Engine braking device and method |
| CN103953414A (en) * | 2014-05-12 | 2014-07-30 | 重庆交通大学 | Variable timing system of engine valve |
| CN204532458U (en) * | 2015-03-11 | 2015-08-05 | 重庆交通大学 | Motor decompression starting system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5014181B2 (en) * | 2008-01-29 | 2012-08-29 | 本田技研工業株式会社 | Engine decompression device |
-
2015
- 2015-03-11 CN CN201510106278.1A patent/CN104696039B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2913619Y (en) * | 2006-04-14 | 2007-06-20 | 江门市硕普科技开发有限公司 | Engine self-adaptive spiracle phase apparatus |
| CN1963169A (en) * | 2006-11-10 | 2007-05-16 | 陈庆云 | Pressure-release cylinder-variable oil-saving engine |
| CN101368517A (en) * | 2008-08-13 | 2009-02-18 | 奇瑞汽车股份有限公司 | Engine braking device and method |
| CN103953414A (en) * | 2014-05-12 | 2014-07-30 | 重庆交通大学 | Variable timing system of engine valve |
| CN204532458U (en) * | 2015-03-11 | 2015-08-05 | 重庆交通大学 | Motor decompression starting system |
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| Publication number | Publication date |
|---|---|
| CN104696039A (en) | 2015-06-10 |
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Address after: No. 1, Fuxing Avenue, Shuang Fu new area, Jiangjin District, Chongqing Patentee after: chongqing jiaotong university Address before: 400074 Chongqing Nan'an District University Avenue, No. 66 Patentee before: chongqing jiaotong university |
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