CN106948965B - A kind of engine piston structure - Google Patents
A kind of engine piston structure Download PDFInfo
- Publication number
- CN106948965B CN106948965B CN201710089358.XA CN201710089358A CN106948965B CN 106948965 B CN106948965 B CN 106948965B CN 201710089358 A CN201710089358 A CN 201710089358A CN 106948965 B CN106948965 B CN 106948965B
- Authority
- CN
- China
- Prior art keywords
- piston
- rod piece
- engine
- rod
- connecting rod
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
Abstract
The present invention relates to engine arts, specifically disclose a kind of engine piston structure.The engine piston structure includes piston and connecting rod, is connected with the first rod piece and the second rod piece of equal length on the piston, and one end of first rod piece and the second rod piece is connect with piston respectively, and the other end, which is connected with each other, simultaneously to be connect with connecting rod；First rod piece and the second rod piece is in the same plane and the first rod piece and the angular bisector at the constituted angle of the second rod piece are overlapped with the axis of piston；Plane where first rod piece and the second rod piece is vertical with the plane where link motion track.Engine as described above piston structure mitigates shock when piston passes through stop to cylinder wall, reduces vibration when engine operation and noise, improves the service performance of engine.
Description
Technical field
The present invention relates to engine art more particularly to a kind of engine piston structures.
Background technique
The crank engine being commonly used, when piston 2 moves upwards, as shown in Figure 1a, connecting rod 1 is pushed
Piston 2 moves upwards compressed gas；At this time connecting rod 1 to the active force of piston 2 component in the horizontal direction to the right, piston 2 exists
It is close to right side casing wall under the action of 1 thrust of connecting rod to move upwards.In engine piston 2 when passing through top dead centre, such as Fig. 1 b and 1c
Shown, gas flash fire simultaneously pushes piston 2 to start, at this point, component of the connecting rod 1 to the active force of piston 2 in the horizontal direction
From becoming to the right to the left, and there are small gap between piston 2 and cylinder wall, piston 2 can occur as shown in Fig. 1 b to Fig. 1 c
Movement, and collide out abnormal sound with cylinder wall, final left side casing wall of being close to as shown in Figure 1 d moves downward.Piston
The phenomenon that when passing through stop, piston swings in cylinder and collides with cylinder wall, issues abnormal voice referred to as engine knock.Vapour
The Knocking Problem of car engine is to limit a big factor of engine power and power performance, and engine power when engine knock occurs and omits
Have a rising, but it is serious when power and revolving speed dramatic decrease, working performance it is unstable；And to will lead to engine violent for engine knock phenomenon
Shake, and engine overheat, over-emitting black exhaust can be made.Engine is once engine knock, which occurs, to be repaired at once, to prevent fault coverage expansion
, cause more huge economic loss.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of engine piston structures, mitigate when piston passes through stop to gas
The shock of casing wall reduces vibration when engine operation and noise, improves the service performance of engine.
In order to solve the above technical problem, the present invention provides technical solution it is as follows: a kind of engine piston structure, including
Piston and connecting rod are connected with the first rod piece and the second rod piece of equal length, first rod piece and on the piston
One end of two rod pieces is connect with piston respectively, and the other end is connected with each other and connect with connecting rod；First rod piece and the second bar
Part is in the same plane and the first rod piece and the angular bisector at the constituted angle of the second rod piece are overlapped with the axis of piston；Described
Plane where one rod piece and the second rod piece is vertical with the plane where link motion track.
Preferably, the piston is equipped with piston pin, first rod piece and the second rod piece by piston pin with
Piston connection.
It has the advantages that by adopting the above technical scheme
1. one end of first rod piece and the second rod piece is connect with piston respectively, the other end is connected with each other and and company
Bar connection；First rod piece and the second rod piece and piston pin constitute tripod.Plane where first rod piece and the second rod piece
It is vertical with the plane where link motion track.During piston stroking upward, connecting rod also has a reaction force to tripod, by
Not parallel in the length direction of connecting rod and the direction of motion of piston, connecting rod makes piston and triangle framework to the active force of tripod
At entirety deflect, piston upper and lower ends are biased to the two sides of cylinder respectively.When piston continues up operation until top dead centre
When, connecting rod is located in the plane where tripod at this time, and connecting rod straight up, lives to the thrust direction of piston and tripod at this time
Plug restores from deflection state.When cylinder starts acting, piston and tripod generate huge pressure to connecting rod, and connecting rod has been at this time
Continue to swing by top dead centre and to the other side, connecting rod makes piston inclined to the direction opposite with when uplink the thrust of tripod
Turn.Compared with traditional engine structure, connecting rod, which applies a torque to piston by tripod, makes tilting of the piston, thus more flat
Quietly make piston by stop, reduces casing wall piston wear, reduce noise, it is ensured that the stability of engine output.
2. piston described in is equipped with piston pin, first rod piece and the second rod piece and is connected by piston pin and piston
It connects, on the basis of existing crank connecting link engine, it is only necessary to which corresponding transformation, modification difficulty are done to piston pin and connecting rod
It is small.
Detailed description of the invention
Fig. 1 is the operation logic figure of available engine；
Fig. 2 is the structural schematic diagram of the present embodiment engine piston structure；
Fig. 3 is the operation logic figure of the present embodiment engine piston structure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment
As shown in Fig. 2, a kind of engine piston structure, including piston 2 and connecting rod 1, length is connected on the piston 2
One end of equal the first rod piece 31 and the second rod piece 32, first rod piece 31 and the second rod piece 32 connects with piston 2 respectively
It connects, the other end is connected with each other and connect with connecting rod 1；First rod piece 31 and the second rod piece 32 and piston pin 4 constitute tripod 3.
First rod piece 31 and the second rod piece 32 is in the same plane and the first rod piece 31 and the constituted angle of the second rod piece 32
Angular bisector is overlapped with the axis of piston 2；Plane and 1 motion profile of connecting rod where first rod piece 31 and the second rod piece 32
The plane at place is vertical.During 2 uplink of piston, connecting rod 1 also has a reaction force to tripod 3, as shown in Figure 3a, by
Not parallel in the direction of motion of the length direction and piston 2 of connecting rod 1, connecting rod 1 makes piston 2 and three to the active force of tripod 3
The entirety that corner bracket 3 is constituted deflects, and 2 upper and lower ends of piston are biased to the two sides of cylinder respectively.As shown in Figure 3b, when piston 2 after
Continuous to run up when top dead centre, connecting rod 1 is located in the plane at 3 place of tripod at this time, and connecting rod 1 is to piston 2 and tripod 3
Thrust direction straight up, at this time piston 2 from deflection state restore.As shown in Figure 3c, when cylinder starts acting, piston 2
Huge pressure is generated to connecting rod 1 with tripod 3, connecting rod 1 continues to swing by top dead centre and to the other side at this time, connecting rod 1
Piston 2 is deflected to the direction opposite with when uplink the thrust of tripod 3.The piston 2 is equipped with piston pin 4, institute
The first rod piece 31 and the second rod piece 32 stated are connect by piston pin 4 with piston 2；On the basis of existing 1 engine of crank connecting link
On, it is only necessary to corresponding transformation is done to piston pin 4 and connecting rod 1, modification difficulty is small.Compared with traditional engine structure,
Connecting rod 1, which applies a torque to piston 2 by tripod 3, tilts piston 2, to more smoothly make piston 2 by stop, subtracts
Small casing wall piston 2 is worn, and reduces noise, it is ensured that the stability of engine output.
Engine as described above piston structure mitigates shock when piston passes through stop to cylinder wall, reduces engine
Vibration and noise when operation, improve the service performance of engine.
In short, the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not intended to limit the invention, it is all in the present invention
Spirit and principle within made any modifications, equivalent replacements, and improvements etc., should be included in protection scope of the present invention it
It is interior.
Claims (2)
1. a kind of engine piston structure, including piston (2) and connecting rod (1), it is characterised in that: connected on the piston (2)
There are the first rod piece (31) and the second rod piece (32) of equal length, one end point of first rod piece (31) and the second rod piece (32)
It is not connect with piston (2), the other end is connected with each other and connect with connecting rod (1)；First rod piece (31) and the second rod piece
(32) it is in the same plane and the axis of the first rod piece (31) and the angular bisector at the second rod piece (32) constituted angle and piston (2)
Line is overlapped；The plane where plane and connecting rod (1) motion profile where first rod piece (31) and the second rod piece (32) is hung down
Directly.
2. engine piston structure according to claim 1, it is characterised in that: the piston (2) is equipped with piston pin
(4), first rod piece (31) and the second rod piece (32) are connect by piston pin (4) with piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089358.XA CN106948965B (en) | 2017-02-20 | 2017-02-20 | A kind of engine piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089358.XA CN106948965B (en) | 2017-02-20 | 2017-02-20 | A kind of engine piston structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106948965A CN106948965A (en) | 2017-07-14 |
| CN106948965B true CN106948965B (en) | 2019-11-19 |
Family
ID=59467996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710089358.XA Active CN106948965B (en) | 2017-02-20 | 2017-02-20 | A kind of engine piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106948965B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62111949U (en) * | 1986-01-07 | 1987-07-16 | ||
| US5435232A (en) * | 1989-09-29 | 1995-07-25 | Hammerton; Ian R. | Multi-connecting rod reciprocating machine |
| CN101809298A (en) * | 2007-08-08 | 2010-08-18 | 费德罗-莫格尔公司 | Small end con rod guidance piston |
| CN202031969U (en) * | 2011-01-07 | 2011-11-09 | 马天进 | Novel piston connecting rod system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080264375A1 (en) * | 2007-04-26 | 2008-10-30 | Ted Hollinger | Dual connecting rod piston |
-
2017
- 2017-02-20 CN CN201710089358.XA patent/CN106948965B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62111949U (en) * | 1986-01-07 | 1987-07-16 | ||
| US5435232A (en) * | 1989-09-29 | 1995-07-25 | Hammerton; Ian R. | Multi-connecting rod reciprocating machine |
| CN101809298A (en) * | 2007-08-08 | 2010-08-18 | 费德罗-莫格尔公司 | Small end con rod guidance piston |
| CN202031969U (en) * | 2011-01-07 | 2011-11-09 | 马天进 | Novel piston connecting rod system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106948965A (en) | 2017-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107299922A (en) | A kind of buffering hydraulic cylinder | |
| CN106948965B (en) | A kind of engine piston structure | |
| CN202545508U (en) | Fixing structure and bolt for air conditioner and compressor thereof | |
| CN111379316B (en) | Weak connection structure of superelevation layer vestibule | |
| CN208503638U (en) | Water-hammer arrester and water hammer cancellation element | |
| CN105065820A (en) | Connecting device for eliminating three-direction vibrations of pipeline interface | |
| WO2013086797A1 (en) | Rigidity-variable cushioning device, anti-backward-tilting device for lifting arm, and crane | |
| CN204082750U (en) | A kind of oil cylinder combination | |
| CN207333542U (en) | A kind of damper improved structure | |
| CN110360264A (en) | A kind of hydraulic motorcycle damper and its shock-dampening method | |
| CA3220841A1 (en) | Large stroke beam pumping unit | |
| CN208501951U (en) | A kind of civil engineering antishock device | |
| CN207416806U (en) | The spring base and pedal simulator of pedal simulator | |
| CN216692835U (en) | Novel displacement absorber for silencer | |
| CN213981819U (en) | Air compressor machine shock-absorbing structure | |
| CN215858348U (en) | Connecting beam type metal damper | |
| CN210950917U (en) | Antidetonation type street lamp | |
| CN211059112U (en) | Self-resetting buffer hydraulic cylinder | |
| CN116856596B (en) | Unit assembled glass curtain wall system for building outer wall | |
| CN214838076U (en) | Plane wheel silent damper | |
| CN204921815U (en) | Air spring's appended gas chamber | |
| CN219992173U (en) | Viscous damper with stable damping medium | |
| CN213392882U (en) | Pump with buffer function | |
| CN209067754U (en) | A kind of engineering machinery tandem rubber spring damper | |
| CN211594946U (en) | Lifting oil cylinder buffer device for forklift |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |