CN207278375U - A kind of engine semi-floating piston crank mechanism - Google Patents
A kind of engine semi-floating piston crank mechanism Download PDFInfo
- Publication number
- CN207278375U CN207278375U CN201721294949.2U CN201721294949U CN207278375U CN 207278375 U CN207278375 U CN 207278375U CN 201721294949 U CN201721294949 U CN 201721294949U CN 207278375 U CN207278375 U CN 207278375U
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- China
- Prior art keywords
- piston pin
- stator
- piston
- semi
- coupled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A kind of engine semi-floating piston crank mechanism, the technical solution of the utility model are that one end of piston is provided with semi-floating attachment device, and semi-floating attachment device is fixed together with connecting rod；The semi-floating attachment device is made of clamp spring, coupled piston pin, stator piston pin, the latch being arranged on coupled piston pin and the sliding recess that is arranged on stator piston pin；Clamp spring is arranged in the card slot of coupled piston pin, in the sliding recess of the latch insertion stator piston pin on coupled piston pin, in stator piston pin insertion connecting rod.The utility model has the advantages that：The coupled piston pin latch in stator piston pin sliding recess is promoted to change stator piston pin and the difference in height of coupled piston pin central axes by engine oil pressure, change piston pin hole and crank pin end pore centre-to-centre spacing, and then realize the volume for changing engine cylinder combustion room, change engine displacement.The utility model also has the characteristics that simple in structure, easy to operate, highly reliable.
Description
Technical field
The utility model belongs to engine component technical field, more particularly to a kind of engine of change burning building volume
Semi-floating piston crank mechanism.
Background technology
With the update of automobile product, automobile production enterprise is in continuous competition, and the exploitation to vehicle product is not
It is disconnected to accelerate.From the configuration design of vehicle, material and hardware support kit equipment improve input also corresponding increasing, the improvement meeting pair of the above
The performance and comfort of motor vehicle will all have an impact, but the heart of automobile --- engine, be heavy most to closing for performance
Want, no matter should be measured from the supply of material, price and Performance Match etc., can all directly affect the performance indicator of vehicle newly developed.
Usually, the consumption of fuel is effectively reduced on the basis of power performance is not influenced, is had to energy-saving and emission-reduction extremely heavy
The meaning wanted.Under normal circumstances, can be directly using the larger engine of discharge capacity, although so carrying to pursue the dynamic property of higher
The power performance under automobile high load working condition has been risen, but the significant wastage of fuel can be caused in running on the lower load, more
Exhaust emissions can also cause environment more to pollute.
The content of the invention
The purpose of this utility model is to provide a kind of engine semi-floating piston crank mechanism of change burning building volume.
The purpose of this utility model is achieved in that it includes piston, it is characterized in that：It is floating that one end of piston is provided with half
Formula attachment device, semi-floating attachment device are fixed together with connecting rod；The semi-floating attachment device is by clamp spring, coupled piston
Pin, stator piston pin, the latch being arranged on coupled piston pin and the sliding recess composition being arranged on stator piston pin；Clamp spring
It is arranged in the card slot of coupled piston pin, in the sliding recess of the latch insertion stator piston pin on coupled piston pin, stator is lived
In plug pin insertion connecting rod.
The sliding recess is ellipse.
Oil duct is provided with the connecting rod；Oil passage outlet is arranged on the junction of connecting rod and crank, and the oil passage outlet is
The cellular oil collect port of 0.3MM thickness.
The utility model has the advantages that：The coupled piston pin in stator piston pin sliding recess is promoted to insert by engine oil pressure
Pin changes stator piston pin and the difference in height of coupled piston pin central axes, changes piston pin hole and crank pin end pore centre-to-centre spacing, into
And realize the volume for changing engine cylinder combustion room, change engine displacement.The utility model also has simple in structure, operation
The features such as easy, highly reliable.
Brief description of the drawings
Attached drawing 1 is the structure schematic diagram of the utility model；
Attached drawing 2 is the cross-sectional view of the utility model.
The utility model is described in further detail by example below in conjunction with attached drawing, but following examples is only
The utility model example therein, does not represent the right protection scope that the utility model is limited, the utility model
Rights protection scope is subject to claims.
Embodiment
Example 1
Referring to Fig. 1 ~ 2, the piston crank mechanism of the hair engine semi-floating variable displacement includes connecting rod 5, stator piston pin
4th, coupled piston pin 3, clamp spring 2, piston 1；Stator piston pin 4 is interference fit with 5 small head bore of connecting rod, and coupled piston pin 3 is inserted
Pin is inserted in the groove of stator piston pin 4 can be free to slide, and coupled piston pin 3 is fixed on the pin hole of piston 1 by clamp spring 2
In, it can be freely rotated in pin hole.It is characterized in that：Oil leab, stator are equipped with the connecting rod 5 and stator piston pin 4
4 both sides of piston pin are equipped with sliding recess 7, and coupled piston pin is equipped with latch 6.
The connecting rod lubrication oil duct 9 and stator piston pin oil leab unicom 8.
The stator piston pin oil leab 8 and sliding recess unicom 7.
The latch 6 of the coupled piston pin is inserted in stator piston pin sliding recess 7 and can be free to slide.
One end of piston is provided with semi-floating attachment device, and semi-floating attachment device is fixed together with connecting rod；Described half
Floating attachment device is by clamp spring, coupled piston pin, stator piston pin, the latch being arranged on coupled piston pin and is arranged on stator
Sliding recess composition on piston pin；Clamp spring is arranged in the card slot of coupled piston pin, and the latch insertion on coupled piston pin is fixed
In the sliding recess of sub- piston pin, in stator piston pin insertion connecting rod.
The sliding recess is ellipse.
Oil duct is provided with the connecting rod；Oil passage outlet is arranged on the junction of connecting rod and crank, and the oil passage outlet is
The cellular oil collect port of 0.3MM thickness.
The principle of the application is as follows：
1）When needing engine output larger, machine oil is injected into the slip of stator piston pin by lifting engine oil pressure
In groove, coupled piston pin latch is promoted to move downward the band downward displacement of piston, pin hole and the big end centre-to-centre spacing of piston
Reduce, combustion chamber volume increase, engine displacement increase, fuel consumption increase；
2）When needing engine output smaller, existed by reducing the machine oil in engine oil pressure stator piston pin groove
It is extruded under centrifugal force effect, pin hole and the big end centre-to-centre spacing of piston increase, and combustion chamber volume reduces, and engine displacement subtracts
Small, fuel consumption reduces.
Claims (4)
1. a kind of engine semi-floating piston crank mechanism, it includes piston, it is characterized in that：One end of piston is provided with semi-floating
Attachment device, semi-floating attachment device are fixed together with connecting rod；The semi-floating attachment device by clamp spring, coupled piston pin,
Stator piston pin, the latch being arranged on coupled piston pin and the sliding recess composition being arranged on stator piston pin；Clamp spring is set
Put in the card slot of coupled piston pin, in the sliding recess of the latch insertion stator piston pin on coupled piston pin, stator piston
In pin insertion connecting rod.
2. a kind of engine semi-floating piston crank mechanism according to claim 1, it is characterized in that：The sliding recess is
Ellipse.
3. a kind of engine semi-floating piston crank mechanism according to claim 1, it is characterized in that：Set in the connecting rod
There is oil duct；Oil passage outlet is arranged on the junction of connecting rod and crank, and the oil passage outlet is the cellular oil collect port of 0.3MM thickness.
4. a kind of engine semi-floating piston crank mechanism according to claim 3, it is characterized in that：The stator piston pin
Inside it is additionally provided with and the matched oil hole of oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294949.2U CN207278375U (en) | 2017-10-10 | 2017-10-10 | A kind of engine semi-floating piston crank mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294949.2U CN207278375U (en) | 2017-10-10 | 2017-10-10 | A kind of engine semi-floating piston crank mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278375U true CN207278375U (en) | 2018-04-27 |
Family
ID=61987634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721294949.2U Expired - Fee Related CN207278375U (en) | 2017-10-10 | 2017-10-10 | A kind of engine semi-floating piston crank mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207278375U (en) |
-
2017
- 2017-10-10 CN CN201721294949.2U patent/CN207278375U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20211010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |