CN107061042A - A kind of piston apparatus for engine - Google Patents
A kind of piston apparatus for engine Download PDFInfo
- Publication number
- CN107061042A CN107061042A CN201710523055.4A CN201710523055A CN107061042A CN 107061042 A CN107061042 A CN 107061042A CN 201710523055 A CN201710523055 A CN 201710523055A CN 107061042 A CN107061042 A CN 107061042A
- Authority
- CN
- China
- Prior art keywords
- closure gasket
- gasket groove
- piston
- engine
- groove
- 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.)
- Pending
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
- 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
- F02F2003/0007—Monolithic pistons; One piece constructions; Casting of pistons
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of piston apparatus for engine, the piston apparatus includes the first closure gasket groove and the second closure gasket groove being sequentially arranged from the head of the engine piston towards the skirt section of the engine piston, wherein, the external peripheral surface of the ring bank between first closure gasket groove and the second closure gasket groove is formed with recess.
Description
Technical field
The present invention relates to a kind of piston, specifically related to a kind of piston apparatus for engine.
Background technology
Piston is as kernel component extensively using on the engine, and head and the engine cylinder-body of piston are collectively forming
Combustion chamber, huge explosion pressure can be produced when mixed oil and gas compression ignition and promotes piston acting, and by connecting rod energy transmission
To bent axle, completion reciprocates to the conversion of rotary motion and the transmission of energy, and simultaneously, huge explosion pressure can cause
A part of combustion gas channels to top land to the space between the second ring bank at top land opening and cylinder prepareding gap, and at this
Region forms a secondary high pressure, and with the rotation of bent axle, the pressure of combustion chamber is gradually reduced, sometime, top land and
Pressure between second ring bank is higher than the pressure of combustion chamber, and air-flow will be altered reversely to combustion chamber, while this portion gas also can
Carry a part of machine oil and participate in burning into combustion chamber, cause consumption of lubricating oil.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of piston apparatus for engine.
The purpose of the present invention is achieved through the following technical solutions：
A kind of piston apparatus for engine of the present invention, the piston apparatus includes the head court from the engine piston
The first closure gasket groove and the second closure gasket groove being sequentially arranged to the skirt section of the engine piston, wherein, first sealing
The external peripheral surface of ring bank between annular groove and the second closure gasket groove is formed with recess.
The recess is formed as the ring cutting groove positioned at the external peripheral surface.
The recess is arranged at intervals with first closure gasket groove, and is communicated with second closure gasket groove.
There is spacer portion between the recess and first closure gasket groove, connected between the spacer portion and the recess
There is angled transition face.
The angled transition face includes round table surface, and the cross-sectional area of the round table surface is along from first closure gasket groove towards institute
The direction for stating the second closure gasket groove is gradually reduced.
The annular groove that first closure gasket groove is made up of gray cast iron material, which covers, to be formed, and the annular groove is set on described start
In the body of machine piston.
The body of the engine piston is the structure of aluminum material.
The engine piston also includes the 3rd closure gasket groove, first closure gasket groove, the second closure gasket groove and the 3rd
Closure gasket groove is sequentially arranged from the head of the engine piston towards the skirt section of the engine piston.
Beneficial effects of the present invention：A kind of piston apparatus for engine that the present invention is provided, the piston apparatus energy
Enough alleviate and the problem of carrying machine oil enters combustion chamber and causes consumption of lubricating oil is altered on gas.
With reference to specific embodiment, the present invention will be described in detail.Protection scope of the present invention is not with specific implementation
Mode is limited, but is defined in the claims.
Brief description of the drawings
Fig. 1 is a kind of structural representation of piston apparatus for engine of the present invention；
In figure, 1 head；2 ring cutting grooves；3 first closure gasket grooves；4 second closure gasket grooves；5 annular groove sets；6 angled transition faces.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
In the present invention, in the case where not making opposite explanation, the noun of locality used such as " upper and lower, " typically refers to reference
It is shown in the drawings upper and lower；" inside and outside " refers to the inside and outside of the profile relative to each part in itself.
Referring to Fig. 1, according to an aspect of the present invention there is provided a kind of engine piston, including from the head of engine piston
The first closure gasket groove 3 and the second closure gasket groove 4 that portion 1 is sequentially arranged towards the skirt section of engine piston are (close for installing piston
Seal ring), wherein, ring bank between the first closure gasket groove 3 and the second closure gasket groove 4 (commonly referred to as the second ring bank of piston) it is outer
Circumferential surface is formed with recess.
Because the external peripheral surface of the ring bank between the first closure gasket groove 3 and the second closure gasket groove 4 is formed with recess, so
Space between the first closure gasket groove 3 and the second closure gasket groove 4 is added, the stress level in the space is significantly reduced, from
And carrying machine oil is altered on gas when can alleviate engine work in the space and enters combustion chamber and causes asking for consumption of lubricating oil
Topic.
According to the preferred embodiment of the present invention, recess can be formed as the ring cutting groove 2 positioned at external peripheral surface, but this hair
Bright to be not limited to this, on the premise of the normal work function of engine piston is met, recess can be various acyclic grooving samples
Formula groove.
In addition, recess can be arranged at intervals with the first closure gasket groove 3, and communicate, need exist for the second closure gasket groove 4
Bright, it is to ensure the sealing ring being arranged in the first closure gasket groove 3 (not that recess and the first closure gasket groove 3, which are arranged at intervals,
Diagram) sealing because generally should be arranged on the first closure gasket groove 3 in sealing ring bottom ring bank (such as second ring bank
(i.e. ring bank between the first closure gasket groove 3 and the second closure gasket groove 4)) sealing ring in the first closure gasket groove 3 is arranged on to this
Sealing property influence it is larger, so the position close to the first closure gasket groove 3 of the second ring bank remains the second ring bank in itself
Structure can be more firm to the formation of the sealing ring in the first closure gasket groove 3 without carrying out grooving processing, such second ring bank
Support, and ring bank (such as second ring bank, positioned at the second closure gasket groove 4 on the sealing ring top in the second closure gasket groove 4
Top) the sealing property influence of sealing ring that is arranged on this in the second closure gasket groove 4 is smaller, so recess can with it is second close
Seal ring groove 4 is communicated (that is, short transverse of the recess along engine piston extends to the second closure gasket groove 4).
Specifically, there can be spacer portion between recess and the first closure gasket groove 3, can be connected between spacer portion and recess
There is angled transition face 6.
Preferably, angled transition face 6 includes round table surface, and the cross-sectional area of the round table surface is along from the direction of the first closure gasket groove 3
The direction of second closure gasket groove 4 is gradually reduced.But present invention is obviously not limited to this structure type.
The annular groove set 5 that first closure gasket groove 3 can be made up of gray cast iron material is formed, and annular groove set 5 is arranged on engine work
In the body of plug, the body of engine piston can be the structure of aluminum material, and the invention is not restricted to this.
In addition, engine piston can also include the 3rd closure gasket groove, the first closure gasket groove 3, the second closure gasket groove 4 and the
Three closure gasket grooves are sequentially arranged from the head 1 of engine piston towards the skirt section of engine piston.
Applicant declares, and the above embodiment of the present invention is merely to clear explanation example of the present invention, and not
Restriction to embodiments of the present invention.
Claims (8)
1. a kind of piston apparatus for engine, the piston is included from the head (1) of the engine piston described in
The first closure gasket groove (3) and the second closure gasket groove (4) that the skirt section of engine piston is sequentially arranged, it is characterised in that described
The external peripheral surface of ring bank between one closure gasket groove (3) and the second closure gasket groove (4) is formed with recess.
2. a kind of piston apparatus for engine according to claim 1, it is characterised in that the recess is formed as position
In the ring cutting groove (2) of the external peripheral surface.
3. a kind of piston apparatus for engine according to claim 1 or 2, it is characterised in that the recess and institute
The first closure gasket groove (3) interval setting is stated, and is communicated with second closure gasket groove (4).
4. a kind of piston apparatus for engine according to claim 3, it is characterised in that the recess and described the
There is spacer portion between one closure gasket groove (3), angled transition face (6) is connected between the spacer portion and the recess.
5. a kind of piston apparatus for engine according to claim 4, it is characterised in that the angled transition face
(6) round table surface is included, the cross-sectional area of the round table surface is along from first closure gasket groove (3) towards second closure gasket groove
(4) direction is gradually reduced.
6. a kind of piston apparatus for engine according to claim 1 or 2, it is characterised in that first sealing
The annular groove set (5) that annular groove (3) is made up of gray cast iron material is formed, and the annular groove set (5) is arranged on the sheet of the engine piston
In body.
7. a kind of piston apparatus for engine according to claim 1, it is characterised in that the body of the piston is
The structure of aluminum material.
8. a kind of piston apparatus for engine according to claim 1 or 2, it is characterised in that the piston is also wrapped
Include the 3rd closure gasket groove, first closure gasket groove (3), the second closure gasket groove (4) and the 3rd closure gasket groove are from the engine
The head (1) of piston is sequentially arranged towards the skirt section of the engine piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710523055.4A CN107061042A (en) | 2017-06-30 | 2017-06-30 | A kind of piston apparatus for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710523055.4A CN107061042A (en) | 2017-06-30 | 2017-06-30 | A kind of piston apparatus for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061042A true CN107061042A (en) | 2017-08-18 |
Family
ID=59613681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710523055.4A Pending CN107061042A (en) | 2017-06-30 | 2017-06-30 | A kind of piston apparatus for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061042A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742282A (en) * | 2013-11-29 | 2014-04-23 | 余姚市宏骏铜业有限公司 | Piston allowing oil to be scraped conveniently |
| CN204552969U (en) * | 2015-04-03 | 2015-08-12 | 北京福田康明斯发动机有限公司 | Engine piston and motor |
-
2017
- 2017-06-30 CN CN201710523055.4A patent/CN107061042A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742282A (en) * | 2013-11-29 | 2014-04-23 | 余姚市宏骏铜业有限公司 | Piston allowing oil to be scraped conveniently |
| CN204552969U (en) * | 2015-04-03 | 2015-08-12 | 北京福田康明斯发动机有限公司 | Engine piston and motor |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |