CN201148916Y - First gas ring of diesel - Google Patents
First gas ring of diesel Download PDFInfo
- Publication number
- CN201148916Y CN201148916Y CNU2007201314463U CN200720131446U CN201148916Y CN 201148916 Y CN201148916 Y CN 201148916Y CN U2007201314463 U CNU2007201314463 U CN U2007201314463U CN 200720131446 U CN200720131446 U CN 200720131446U CN 201148916 Y CN201148916 Y CN 201148916Y
- Authority
- CN
- China
- Prior art keywords
- ring
- diesel engine
- ring body
- height
- face
- 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 - Lifetime
Links
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000004939 coking Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The utility model relates to a first gas ring of a diesel engine, in particular to a piston ring with a limited 90 mm air cylinder bore and a 100 mm piston stroke. The piston ring is characterized in that the excircle diameter of the ring body is 89 to 91 mm, the radial thickness is 3.5 to 3.6 mm, the axial height is 2 to 3 mm, the barrel surface height is 0.003 to 0.015 mm, the free gas clearance is 10 to 13 mm, the height of the end surface of the ring body is 0.1 to 0.3 mm, and a 34 to 36 DEG taper angle is formed on the end surface. The piston ring has the advantages that the structure is simple and reasonable; because the reasonable radial thickness, axial height, cross section shape and free gap end distance are selected, the first gas ring has sufficient strength, a certain elastic force, very good wear-resistance and corrosion resistance, good heat stability and sufficient anti-coking capability; the operational reliability and the service life of the diesel engine can be improved after the piston ring is used on the direct-injection high speed diesel engine.
Description
Technical field
The utility model relates to a kind of B43 diesel engine first compression ring, specifically limits the piston ring of cylinder bore 90mm and piston stroke 100mm, is used for direct spray type high-speed diesel fuel motor, improves the functional reliability and the working life of diesel engine.
Background technique
In prior art, compression ring divides five kinds of bucket face ring, taper-face ring, keystone ring, twist type ring and reverse torsion rings etc.Under the prerequisite that guarantees sealing, the number of piston ring should be the least possible, can dwindle depth pistion because reduce number of rings, alleviates piston mass, reduces the motor total height, reduces the engine friction loss.The Modern High-Speed internal-combustion engine adopts the twice compression ring mostly.The dimensional parameters of compression ring mainly contains the free state shape and the free open end distance of radial thickness, axial height and the ring of ring.Reduce to encircle height and help shortening depth pistion, the flutter tendency that reduces to encircle, the high limit that has reached about 1mm of ring at present.Cross the processing difficulties that the circlet height makes ring and annular groove.The ring flexural rigidity that radial thickness is bigger is big, and is poor to the followability of cylinder surface distortion, but wear resistance is better relatively.The less stiffening ring of end distance is easy to fracture when cover installs on the piston crown.Piston ring generally is by alloy cast iron casting, high strength ring spheroidal graphite cast iron, through heat treatment to improve the thermostability of material.The working surface of piston ring is usually with various coating or coating, to improve its wear resistance, corrosion resistance or to improve running-in ability.The most frequently used wearing layer is chromium plating and sprayed molybdenum.All rings all will carry out phosphatization, zinc-plated or oxidation processes, to improve running-in ability and antirust.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of diesel engine first compression ring is provided, and it has enough intensity; Certain elastic force; Well wear-resisting, corrosion resistance and good thermostability and enough anti-coking performances.
Main solution of the present utility model is achieved in that
The utility model comprises a barrel face ring body, the ring body outside diameter is: 89～91mm, radial thickness is: 3.5～3.6mm, axial height is: 2～3mm, bucket face degree is: 0.003～0.015mm, the free open gap is: 10～13mm, the end face height of ring body is: 0.1～0.3mm, end face are provided with cone angle and are: 34～36 ° angle.
The outer round surface chromium coating of described bucket face ring body, chromium coating thickness minimum is: 0.1mm.
Described bucket face ring body adopts ductile cast iron material to make.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, rationally; Owing to selected rational radial thickness, axial height, sectional shape and free open end distance etc.; It has enough intensity, certain elastic force, well wear-resisting, corrosion resistance, good thermostability and enough anti-coking performances; Be used on the direct spray type high-speed diesel fuel motor, can improve the functional reliability and the working life of diesel engine.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
The utility model comprises a barrel face ring body 1, and its ring body 1 outside diameter is: 90mm, radial thickness is: 3.55mm, axial height is: 2.5mm, bucket face degree is: 0.003～0.015mm, the free open gap is: 10～13mm.The end face of ring body 1 is provided with two height: 0.2mm, and angle is: 30 ° cone angle, the outer round surface chromium coating of ring body 1, chromium coating thickness minimum is: 0.1mm.
The utility model has been selected the free state shape of rational radial thickness, axial height, sectional shape, surface treatment and ring and free open end distance etc.; And carried out strength check; The material that bucket face ring body 1 adopts is spheroidal graphite cast iron NHC-7.
Claims (3)
1, a kind of diesel engine first compression ring, comprise a barrel face ring body (1), it is characterized in that the ring body outside diameter is: 89～91mm, radial thickness is: 3.5～3.6mm, axial height is: 2～3mm, and bucket face degree is: 0.003～0.015mm, the free open gap is: 10～13mm, the end face height of ring body is: 0.1～0.3mm, end face are provided with cone angle and are: 34～36 ° angle.
2, diesel engine first compression ring according to claim 1 is characterized in that the outer round surface chromium coating of described bucket face ring body (1), and chromium coating thickness minimum is: 0.1mm.
3, diesel engine first compression ring according to claim 1 is characterized in that described bucket face ring body (1) adopts ductile cast iron material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201314463U CN201148916Y (en) | 2007-12-14 | 2007-12-14 | First gas ring of diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201314463U CN201148916Y (en) | 2007-12-14 | 2007-12-14 | First gas ring of diesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201148916Y true CN201148916Y (en) | 2008-11-12 |
Family
ID=40116684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201314463U Expired - Lifetime CN201148916Y (en) | 2007-12-14 | 2007-12-14 | First gas ring of diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201148916Y (en) |
-
2007
- 2007-12-14 CN CNU2007201314463U patent/CN201148916Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINESE AUTO GROUP CO NO.1 Free format text: FORMER OWNER: WUXI DIESEL ENGINE PLANT, CHINA NO.1 AUTOMOBILES GROUP CORP. Effective date: 20101118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214026 NO. 9, BRANCH ROAD 1, TANGNAN ROAD, NANCHANG DISTRICT, WUXI CITY, JIANGSU PROVINCE TO: 130011 NO. 2259, DONGFENG AVENUE, CHANGCHUN CITY, JILIN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101118 Address after: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Patentee after: China FAW Group Corporation Address before: 214026, No. 9, South Branch Road, South District, Jiangsu, Wuxi Patentee before: China First Automobile Works Group Corporation Wuxi Diesel Engine Works |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081112 |