CN103410628A - Outer piston pin of internal combustion engine - Google Patents
Outer piston pin of internal combustion engine Download PDFInfo
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- CN103410628A CN103410628A CN2013102904928A CN201310290492A CN103410628A CN 103410628 A CN103410628 A CN 103410628A CN 2013102904928 A CN2013102904928 A CN 2013102904928A CN 201310290492 A CN201310290492 A CN 201310290492A CN 103410628 A CN103410628 A CN 103410628A
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- outer piston
- piston pin
- combustion engine
- pin
- internal
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Abstract
The invention discloses an outer piston pin of an internal combustion engine. The outer piston pin comprises an outer piston pin body, end caps located on two sides of the outer piston pin body respectively and an inner piston pin which is matched with the outer piston pin body and is installed on the externally arranged internal combustion engine. Due to the adoption of the outer piston pin of the internal combustion engine, the number of parts of the internal combustion engine is reduced, cost is saved, and the reliability of the internal combustion engine is improved. Furthermore, the outer piston pin with the structure can be provided with two connecting rods, and therefore stress borne by each connecting rod is halved, and the reliability of the connecting rods is improved.
Description
Technical field
The present invention relates to a kind of technical field of internal-combustion engine, relate in particular to a kind of outer piston pin of internal-combustion engine.
Background technique
Piston rod is accompanied by internal-combustion engine and is born, and its effect is: piston bears the gas pressure in cylinder, and this power is passed to connecting rod by wrist pin, promotes crankshaft rotating, thereby realizes converting chemical energy to mechanical energy.Wherein, wrist pin is the crucial stressed member in piston crank mechanism, and wrist pin is operated in rugged environment, sheared simultaneously and impact force, common wrist pin is all generally the cylindrical bearing pin of hollow, in the pin-and-hole of assembling piston skirt, plays the effect that connects piston and connecting rod.Although the wrist pin technology is comparative maturity, the wrist pin of conventional structure can not meet novel structure, designs flat opposed cylinder opposed pistons (OPOC) form engine structure requirement cleverly.
Summary of the invention
The object of the present invention is to provide a kind of outer piston pin of internal-combustion engine, to solve existing conventional wrist pin, can't meet the structural requirement problem of flat opposed cylinder opposed pistons (OPOC) motor.
To achieve these goals, the technological scheme taked of the present invention is:
A kind of outer piston pin of internal-combustion engine, wherein, comprise an outer piston pin and be positioned at the plug of described outer piston pin both sides, and one and the inner carrier pin of described outer piston pin Matching installation on external internal-combustion engine.
The outer piston pin of above-mentioned a kind of internal-combustion engine, wherein, described outer piston pin be shaped as " T " font, the both sides that described outer piston pin is installed described plug also have respectively the cylindrical bearing pin that increases lubrication effect, each described bearing pin is provided with the plane for increasing the lubricating contact face, and offers radial direction oil hole on described plane.
The outer piston pin of above-mentioned a kind of internal-combustion engine, wherein, also have an axial oilhole on each described bearing pin, described plug and described axial oilhole are complementary, and described plug forms shoe cream room after installing.
The outer piston pin of above-mentioned a kind of internal-combustion engine, wherein, the centre of described bearing pin has the duplicate removal groove, and described radial direction oil hole is connected with described duplicate removal groove.
The outer piston pin of above-mentioned a kind of internal-combustion engine, wherein, described duplicate removal groove has the stiffening rib of the described outer piston pin intensity of an increase.
The outer piston pin of above-mentioned a kind of internal-combustion engine, wherein, the bottom of described outer piston pin is sphere, and the bottom of described outer piston pin has the hole of passing for bearing pin, with external outer piston, to be connected.
The outer piston pin of above-mentioned a kind of internal-combustion engine, wherein, described inner carrier pin has the top that a connecting rod small end and is positioned at described connecting rod small end, and the stifled inner carrier pin be connected by the connecting rod small end bolt.
The present invention is owing to having adopted above-mentioned technology, and the good effect that makes it compared with prior art to have is:
1, in cylinder of traditional motor, only has a piston, piston and cylinder cap, valve form firing chamber, and the OPOC engine structure is to be provided with inside and outside two pistons in a cylinder, by two pistons, form firing chamber, meet the requirement of OPOC engine structure.
2, the both sides of outer piston pin are connected by two connecting rods, not only meet structural configuration and function, stressed half of conventional structure of becoming that makes simultaneously connecting rod, and at first the amount of deformation of connecting rod reduces, and effectively promotes motor; Secondly connecting rod material requires further to reduce, and makes the cost of motor more competitive.
3, this structural type is not only applicable to the conventional in-line internal-combustion engine, is applicable to the horizontal versions internal-combustion engine yet, coordinates custom-designed respective pistons link assembly, is better used at flat opposed cylinder opposed piston internal combustion engine.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the outer piston pin of a kind of internal-combustion engine of the present invention;
Fig. 2 is the schematic diagram of the inner carrier pin of a kind of internal-combustion engine of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as limiting to the invention.
Fig. 1 is the schematic diagram of the outer piston pin of a kind of internal-combustion engine of the present invention, shown in Figure 1.The outer piston pin of a kind of internal-combustion engine of the present invention, include an outer piston pin 1 and be positioned at the plug 2 of outer piston pin 1 both sides, and one and the inner carrier pin of the mutual Matching installation of outer piston pin 1 on external internal-combustion engine.
The present invention also has following mode of execution on the basis of the above:
In further embodiment of the present invention, please continue shown in Figure 1.Outer piston pin 1 be shaped as " T " font, the both sides that outer piston pin 1 is installed plug 2 also are processed to form respectively columniform bearing pin 21, two bearing pins 21 and have the effect that increases lubrication effect.On each bearing pin 21, be processed to form the area of contact of 22，Liang plane 22, two planes for increasing lubricant oil.And on plane 22, offer radial direction oil hole 23.
In further embodiment of the present invention, on each bearing pin 21, also offer an axial oilhole 24, each plug 2 is complementary with each axial oilhole 24.Shoe cream room of formation carries out oil storage after plug 2 installations block axial oilhole 24.
In further embodiment of the present invention, have the duplicate removal groove in the centre of bearing pin 21, radial direction oil hole 23 is interconnected with the duplicate removal groove.Lubricant oil from external piston cooling nozzle is both to piston, and the outer piston pin carries out cooling, can be lubricated by oilhole again.
In further embodiment of the present invention, in the duplicate removal groove, also be designed with a stiffening rib, stiffening rib is for increasing outer piston pin intensity.
In further embodiment of the present invention, for increasing area of contact, reduce pressure, the bottom of outer piston pin 1 is sphere, form the sphere-contact form, and the bottom of outer piston pin 1 has the hole 11 of passing for bearing pin, be connected with the head of external outer piston in this mode by ball pivot.
In further embodiment of the present invention, the inner carrier pin has the stifled inner carrier pin 4 that a connecting rod small end 3 and is positioned at institute's connecting rod small end 3 tops, and connecting rod small end 3 is connected with stifled inner carrier pin 4 by connecting rod small end bolt 31.
To sum up, use the outer piston pin of a kind of internal-combustion engine of the present invention, make gas engine part reduce, in the time of cost savings, the reliability of internal-combustion engine gets a promotion.And the outer piston pin that adopts this structure can arrange two connecting rods, thereby the stressed of connecting rod reduced to half, has increased the reliability of connecting rod.
These are only preferred embodiment of the present invention; not thereby limit embodiments of the present invention and protection domain; to those skilled in the art; should recognize that being equal to that all utilizations specification of the present invention and diagramatic content done replace and the resulting scheme of apparent variation, all should be included in protection scope of the present invention.
Claims (6)
1. the outer piston pin of an internal-combustion engine, is characterized in that, comprises an outer piston pin and the plug that is positioned at described outer piston pin both sides.
2. the outer piston pin of internal-combustion engine according to claim 1, it is characterized in that, described outer piston pin be shaped as " T " font, the both sides that described outer piston pin is installed described plug also have respectively the cylindrical bearing pin that increases lubrication effect, each described bearing pin is provided with the plane for increasing the lubricating contact face, and offers radial direction oil hole on described plane.
3. the outer piston pin of internal-combustion engine according to claim 2, is characterized in that on each described bearing pin, also having an axial oilhole, and described plug and described axial oilhole are complementary, and described plug forms shoe cream room after installing.
4. the outer piston pin of internal-combustion engine according to claim 2, is characterized in that, the centre of described bearing pin has the duplicate removal groove, and described radial direction oil hole is connected with described duplicate removal groove.
5. the outer piston pin of internal-combustion engine according to claim 4, is characterized in that, described duplicate removal groove has a stiffening rib that increases described outer piston pin intensity.
6. the outer piston pin of internal-combustion engine according to claim 1, is characterized in that, the bottom of described outer piston pin is sphere, and the bottom of described outer piston pin has the hole of passing for bearing pin, with external outer piston, to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310290492.8A CN103410628B (en) | 2013-07-10 | 2013-07-10 | A kind of outer piston pin of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310290492.8A CN103410628B (en) | 2013-07-10 | 2013-07-10 | A kind of outer piston pin of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103410628A true CN103410628A (en) | 2013-11-27 |
| CN103410628B CN103410628B (en) | 2016-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310290492.8A Expired - Fee Related CN103410628B (en) | 2013-07-10 | 2013-07-10 | A kind of outer piston pin of internal combustion engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN103410628B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050284426A1 (en) * | 2004-06-28 | 2005-12-29 | Adrain Tusinean | Piston guides for a free piston engine |
| CN1957179A (en) * | 2004-05-25 | 2007-05-02 | 福特全球技术公司 | Opposed piston opposed cylinder free piston engine |
| CN103032448A (en) * | 2012-12-21 | 2013-04-10 | 中国兵器工业集团第七0研究所 | Connecting rod of opposed piston two-stroke diesel engine |
| US8464670B2 (en) * | 2009-03-12 | 2013-06-18 | EcoMotors International | Guided bridge for a piston in an internal combustion engine |
-
2013
- 2013-07-10 CN CN201310290492.8A patent/CN103410628B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957179A (en) * | 2004-05-25 | 2007-05-02 | 福特全球技术公司 | Opposed piston opposed cylinder free piston engine |
| US20050284426A1 (en) * | 2004-06-28 | 2005-12-29 | Adrain Tusinean | Piston guides for a free piston engine |
| US8464670B2 (en) * | 2009-03-12 | 2013-06-18 | EcoMotors International | Guided bridge for a piston in an internal combustion engine |
| CN103032448A (en) * | 2012-12-21 | 2013-04-10 | 中国兵器工业集团第七0研究所 | Connecting rod of opposed piston two-stroke diesel engine |
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| Publication number | Publication date |
|---|---|
| CN103410628B (en) | 2016-08-10 |
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Granted publication date: 20160810 Termination date: 20180710 |