CN201835938U - Novel piston ring pack for liquefied petroleum gas fuel engine - Google Patents
Novel piston ring pack for liquefied petroleum gas fuel engine Download PDFInfo
- Publication number
- CN201835938U CN201835938U CN2010205790969U CN201020579096U CN201835938U CN 201835938 U CN201835938 U CN 201835938U CN 2010205790969 U CN2010205790969 U CN 2010205790969U CN 201020579096 U CN201020579096 U CN 201020579096U CN 201835938 U CN201835938 U CN 201835938U
- Authority
- CN
- China
- Prior art keywords
- ring
- piston ring
- gas
- engine
- liquefied petroleum
- 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
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a novel piston ring pack for a liquefied petroleum gas fuel engine, which comprises a first gas ring of which the excircle surface is sprayed with molybdenum, a second gas ring and three combined flexible steel belt combined oil rings, wherein the first gas ring is a barrel surface ring, and the second gas ring is a conical surface ring. The service life of the novel piston ring pack for the liquefied petroleum gas fuel engine is improved from the original 2,000 hours to 4,000 hours or more, and the friction power is reduced by 25%; the efficiency of gas consumption is reduced from 250 g/kW. h to 200 g /kW. h, and the engine oil-fuel ratio is reduced from 0.4% to 0.15%; and the emission requirements of the state III and state IV engine can be successfully achieved, and the three flexible steel belt combined oil rings have a shorter process route, small investment of equipment, and lower cost of raw materials.
Description
Technical field
The utility model relates to a kind of nonpetroleum liquefied gas as fuel piston ring for engine group.
Background technique
Existing liquefied petroleum gas engine fuel has directly been continued to use traditional diesel engine or piston of gasoline engine ring group form with the piston ring group, promptly is made up of the first road hard chromium plating compression ring, the second road phosphatization compression ring, the double-combined helical supporting spring oil ring in the 3rd road; There is following shortcoming in this combining form:
(1) row's temperature of the very difficult adaptation of top compression ring plating hard chromium on surface processing liquefied petroleum gas engine fuel is high, corrosivity is strong, and failure phenomenons such as piston ring burn into scuff wear take place the environment of lubrication effect difference easily, influence the working life of piston ring;
(2) double-combined helical supporting spring oil ring flexibility is relatively poor, complies with the ability of cylinder-liner distortion, because the draining passage is few, the engine motor oil consumption is higher relatively, and is unfavorable to reducing discharging;
Based on above analysis, urgent need will be designed and adapt to the novel piston ring group of liquefied petroleum gas engine fuel to the special requirement of piston ring.
Summary of the invention
Goal of the invention: the purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of nonpetroleum liquefied gas as fuel piston ring for engine group is provided, and solves the problem that existing piston ring group is perishable, comply with the cylinder-liner distortion ability.
Technological scheme: in order to solve the problems of the technologies described above, the utility model has adopted following technological scheme:
A kind of nonpetroleum liquefied gas as fuel piston ring for engine group, it comprises the top compression ring of outer round surface sprayed molybdenum, the second road compression ring and three combined type flexible steel band combined oil rings.
Wherein, described top compression ring is a bucket face ring; The described second road compression ring is a taper-face ring.
Beneficial effect: nonpetroleum liquefied gas as fuel piston ring for engine group of the present utility model was brought up to more than 4000 hours by original 2000 hours working life; Frictional work reduces by 25%, gas consumption efficient by original 250 grams/kilowatt. the time be reduced to 200 grams/kilowatt. the time; The machine combustion is than being reduced to 0.15% by original 0.4%; Can reach the emission request of state III, state IV motor smoothly; Three flexible steel band combined oil ring process route is short, the equipment input is little, the cost of raw material is lower.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in the figure, a kind of nonpetroleum liquefied gas as fuel piston ring for engine group of the present utility model, it comprises top compression ring 1, the second road compression ring 2 and the three combined type flexible steel band combined oil rings 3 of outer round surface sprayed molybdenum.Described top compression ring 1 is a bucket face ring; The described second road compression ring 2 is a taper-face ring.
Wherein, the surface treatment of top compression ring 1 is adopted and is inlayed the sprayed molybdenum processing mode, this material of molybdenum has stronger anti-oxidant, erosion-resisting ability, simultaneously, the fine and closely woven space of molybdenum layer can store a certain amount of lubricant oil, can prevent piston ring in high temperature, the biochemical burn into scuff wear of elevated pressure and raising tension cylinder ability, thus the working life of effectively improving piston ring.The structure of oil ring changes three flexible steel band combined oil rings into by existing two-piece combined helical supporting spring oil ring, has alleviated the weight of ring body, has improved the flexibility of ring, thereby increased the compliance of ring and cylinder sleeve, simultaneously, owing to roll up drainback passage, thus reduced consumption of lubricating oil.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. nonpetroleum liquefied gas as fuel piston ring for engine group, it is characterized in that: it comprises the top compression ring (1) of outer round surface sprayed molybdenum, the second road compression ring (2) and three combined type flexible steel band combined oil rings (3).
2. a kind of nonpetroleum liquefied gas as fuel piston ring for engine group according to claim 1 is characterized in that: described top compression ring (1) is bucket face ring.
3. a kind of nonpetroleum liquefied gas as fuel piston ring for engine group according to claim 1 is characterized in that: the described second road compression ring (2) is a taper-face ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205790969U CN201835938U (en) | 2010-10-27 | 2010-10-27 | Novel piston ring pack for liquefied petroleum gas fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205790969U CN201835938U (en) | 2010-10-27 | 2010-10-27 | Novel piston ring pack for liquefied petroleum gas fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835938U true CN201835938U (en) | 2011-05-18 |
Family
ID=44006045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205790969U Expired - Lifetime CN201835938U (en) | 2010-10-27 | 2010-10-27 | Novel piston ring pack for liquefied petroleum gas fuel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410175A (en) * | 2011-09-07 | 2012-04-11 | 华闽南配集团股份有限公司 | Novel energy-saving piston ring set of air compressor |
-
2010
- 2010-10-27 CN CN2010205790969U patent/CN201835938U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410175A (en) * | 2011-09-07 | 2012-04-11 | 华闽南配集团股份有限公司 | Novel energy-saving piston ring set of air compressor |
| CN102410175B (en) * | 2011-09-07 | 2015-04-22 | 华闽南配集团股份有限公司 | Novel energy-saving piston ring set of air compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106190505B (en) | A kind of turbo-charged direct injection cylinder oil composition | |
| CN102344846A (en) | Lubricating oil with negative wear self-repair function and preparation method thereof | |
| CN203098072U (en) | High-wear-resisting low frictional work loss piston ring | |
| CN101649792A (en) | Piston ring set used for natural gas engine | |
| CN201835938U (en) | Novel piston ring pack for liquefied petroleum gas fuel engine | |
| CN201925041U (en) | Piston ring assembly | |
| CN110205186A (en) | A kind of diesel engine oil formula | |
| CN102168627A (en) | Piston ring set with high wear resistance | |
| CN101649791A (en) | Piston ring stet of single-cylinder air-cooled diesel engine | |
| CN102382711B (en) | Novel engine oil for diesel engine and preparation method thereof | |
| CN101671592A (en) | Energy-saving lubricating oil for gasoline engine and diesel engine and preparation method thereof | |
| CN110373255B (en) | Wear-resistant fuel-saving engine lubricating oil and preparation method thereof | |
| CN202431391U (en) | Piston ring with solid lubrication coating | |
| CN102162407A (en) | A piston ring set | |
| CN202417732U (en) | Piston ring with non-stick coating | |
| CN201526385U (en) | Piston ring | |
| Rahim et al. | Influence of lubrication technology on internal combustion engine performance: an overview | |
| CN104987938A (en) | Special lubricant for natural gas engines | |
| CN101747984B (en) | Internal combustion engine lubricant and preparing method thereof | |
| CN202560381U (en) | Cylinder sleeve provided with annular sinking table sealing surface | |
| CN2833141Y (en) | Cylinder of internal combustion engine | |
| CN102212407B (en) | Structure ceramic metal abrasion reduction material | |
| CN201835936U (en) | Engine piston leak-proof device | |
| CN201439816U (en) | Piston ring with nitration layer and chromium-ceramic composition plating layer | |
| CN2558776Y (en) | Reverse twisted ceramal piston ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |