CN102418687A - Piston ring structural form capable of reducing or eliminating clearance between piston and cylinder and processing method thereof - Google Patents
Piston ring structural form capable of reducing or eliminating clearance between piston and cylinder and processing method thereof Download PDFInfo
- Publication number
- CN102418687A CN102418687A CN2011102587276A CN201110258727A CN102418687A CN 102418687 A CN102418687 A CN 102418687A CN 2011102587276 A CN2011102587276 A CN 2011102587276A CN 201110258727 A CN201110258727 A CN 201110258727A CN 102418687 A CN102418687 A CN 102418687A
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- piston
- piston ring
- ring
- cylinder
- clearance
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- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention discloses a piston ring structural form capable of reducing or eliminating the clearance between a piston and a cylinder and a processing method thereof. The piston ring structural form is provided with a piston ring (1) positioned on an annular groove (1) on the circumferential periphery of a piston (2), and is characterized in that: the piston ring (1) is in the shape of a broken corner rectangular section (4); the broken corner rectangular section is triangular; and the entire piston ring (1) is arranged at a position where the annular plane of the piston ring (1) is flush with the top of the piston (2). The processing method comprises the following steps of: sheathing the piston ring (1) on the annular groove (3) of the piston (2); and performing planar grinding on the upper top of the piston (2) and the upper top of the piston ring (1). The piston ring structural form is suitable for any conventional model which needs to reduce or eliminate the clearance volume between the piston (2) and a cylinder (5).
Description
Technical field.
The present invention relates to the structure technology of piston reciprocating compressor, especially related to the structure and the processing method thereof of piston ring.
Background technique
Between the piston and cylinder in the present piston reciprocating compressor; Relying on the elastic ring piston ring with outside circumferencial direction to restrict the purposes of leaking gas between the high low pressure of piston two ends as the middle transition parts is provided with; Yet; Do not consider how to reduce completely: leave the nearest piston ring of piston head to the clearance volume problem that exists between the piston head between piston and the cylinder, the clearance problem that promptly is commonly called as as far as possible.---from macroscopic perspective, this clearance is more little, for the exhaust efficiency that improves compressor or/and compression ratio is favourable.
Summary of the invention
The present invention's purpose: propose a kind of design proposal and processing method thereof that reduces significantly or eliminate above-mentioned clearance.
In order to realize the foregoing invention purpose, intend the technology below adopting:
Have: be positioned at the piston ring on the piston periphery annular groove, it is characterized in that:
Above-mentioned piston ring is the shape of unfilled corner rectangular cross section; The section configuration of this unfilled corner is a triangle; This unfilled corner position is positioned at the ring side upper top of piston ring section; Whole piston ring is arranged on locational that its ring plain flushes with piston head, and this piston ring is to implement to locate through the annular groove that matches with above-mentioned unfilled corner rectangular cross section;
Processing method of the present invention is following: the piston ring that will be the unfilled corner rectangular cross section packs on the annular groove of piston, then the upper top of this piston is carried out plane lapping with the upper top of this piston ring.
The present invention and existing technology characteristics relatively:
Because the interior ring side upper top that adopts is the shape of unfilled corner rectangular cross section; And; It is arranged on locational that the ring plain at piston ring place flushes with piston head, and, again owing to let the upper top of piston carry out plane lapping to process with the upper top of this piston ring; This is just for reaching the purpose of the invention described above, promptly reduces significantly even extremely beneficial condition has been created in the clearance eliminated between piston and the cylinder.
Description of drawings
Illustrated its section be the piston ring section configuration of unfilled corner rectangle and be positioned at the position on the piston.
1: piston ring; 2: piston; 3: annular groove; 4: the unfilled corner rectangular cross section; 5: cylinder.
Embodiment
Between the piston 2 and cylinder 5 that have conventional crank-driven type piston reciprocating compressor now; The piston ring 1 that is provided with generally has two at least, is rectangular cross section, and there wherein have a piston ring 1 to leave piston 2 tops to be nearer; Yet; This " nearer " is that certain distance is arranged, and this distance and piston 2 and the cylinder 5 gap area of section between the two is long-pending, has just formed the clearance volume (clearance that is commonly called as) between above-mentioned piston 2 and the cylinder 5.Reduce the model structure of this clearance volume for some hope, adopted the present invention's technology, then can obtain desirable effect.
Utilize the key that is unfilled corner rectangular cross section 4 shapes of the present invention to be: piston 2 and piston ring 1 are that the fashion of extrusion through certain slope contacts; The machining mode of the plane lapping that carries out with piston 2 tops through piston ring 1 is implemented in easily and can guarantees again under the prerequisite of this two sealing that this two top is positioned at same plane.
When the two fully contacts with another plane through the plane that constitutes side by side by this if desired, will be easy to guarantee can form another " no clearance " state between these two planes that fully contact, if; Because the structure of existing piston reciprocal compressor determines; The clearance that it exists can't overcome, yet, however; Above-mentioned " no clearance " state remains favourable for the whole clearance that reduces traditional piston reciprocating compressor.
As for other piston rings 1 that are provided with between piston 2 and the cylinder 5, just little for the meaning that reduces clearance volume, can still adopt the conventional section configuration of existing technology, for example: its section is a rectangle.
Claims (2)
1. piston ring structure form that can reduce or eliminate clearance between piston and the cylinder has: be positioned at the piston ring (1) on piston (2) the periphery annular groove (3),
It is characterized in that:
Above-mentioned piston ring (1) is the shape of unfilled corner rectangular cross section (4); The section configuration of this unfilled corner is a triangle; This unfilled corner position is positioned at the ring side upper top of piston ring (1) section; Whole piston ring (1) is arranged on locational that its ring plain flushes with piston (2) top, and this piston ring (1) is to implement to locate through the annular groove (3) that matches with above-mentioned unfilled corner rectangular cross section (4).
2. the processing method that can reduce or eliminate the piston ring structure form of clearance between piston and the cylinder according to claim 1,
It is characterized in that:
The piston ring (1) that will be unfilled corner rectangular cross section (4) packs on the annular groove (3) of piston (2), then the upper top of this piston (2) is carried out plane lapping with the upper top of this piston ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110258727.6A CN102418687B (en) | 2010-08-30 | 2011-08-28 | Simple type unfilled corner piston ring structure and the processing method thereof of clearance between piston and cylinder can be reduced |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010274938 | 2010-08-30 | ||
| CN201010274938.4 | 2010-08-30 | ||
| CN201110258727.6A CN102418687B (en) | 2010-08-30 | 2011-08-28 | Simple type unfilled corner piston ring structure and the processing method thereof of clearance between piston and cylinder can be reduced |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102418687A true CN102418687A (en) | 2012-04-18 |
| CN102418687B CN102418687B (en) | 2015-11-11 |
Family
ID=45823789
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010529252.5A Expired - Fee Related CN102384065B (en) | 2010-08-30 | 2010-10-22 | Semi-V-shaped piston ring capable of reducing clearance between piston and air cylinder |
| CN2011102408064A Pending CN102384068A (en) | 2010-08-30 | 2011-08-15 | Piston ring structure capable of reducing or eliminating clearance between piston and air cylinder and processing method thereof |
| CN201110258727.6A Expired - Fee Related CN102418687B (en) | 2010-08-30 | 2011-08-28 | Simple type unfilled corner piston ring structure and the processing method thereof of clearance between piston and cylinder can be reduced |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010529252.5A Expired - Fee Related CN102384065B (en) | 2010-08-30 | 2010-10-22 | Semi-V-shaped piston ring capable of reducing clearance between piston and air cylinder |
| CN2011102408064A Pending CN102384068A (en) | 2010-08-30 | 2011-08-15 | Piston ring structure capable of reducing or eliminating clearance between piston and air cylinder and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN102384065B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384061A (en) * | 2010-09-02 | 2012-03-21 | 梁嘉麟 | Piston ring structure capable of reducing clearance between piston and cylinder and processing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454576A (en) * | 2010-10-22 | 2012-05-16 | 梁嘉麟 | Structure form of half-V-shaped piston ring capable of reducing clearance between pistons and cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2933702B1 (en) * | 1979-08-21 | 1980-11-27 | Goetze Ag | Piston ring for in particular internal combustion engines |
| DE4117212A1 (en) * | 1991-05-27 | 1992-12-03 | Mahle Gmbh | Piston ring for IC engine - is keystone-shaped, with ring flank angles of different sizes |
| US5450783A (en) * | 1994-03-10 | 1995-09-19 | Dana Corporation | Low emission piston ring |
| CN2380706Y (en) * | 1999-06-10 | 2000-05-31 | 任广辉 | Leakage-less piston ring |
| JP2005226522A (en) * | 2004-02-12 | 2005-08-25 | Riken Corp | Piston device for internal combustion engine |
-
2010
- 2010-10-22 CN CN201010529252.5A patent/CN102384065B/en not_active Expired - Fee Related
-
2011
- 2011-08-15 CN CN2011102408064A patent/CN102384068A/en active Pending
- 2011-08-28 CN CN201110258727.6A patent/CN102418687B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2933702B1 (en) * | 1979-08-21 | 1980-11-27 | Goetze Ag | Piston ring for in particular internal combustion engines |
| DE4117212A1 (en) * | 1991-05-27 | 1992-12-03 | Mahle Gmbh | Piston ring for IC engine - is keystone-shaped, with ring flank angles of different sizes |
| US5450783A (en) * | 1994-03-10 | 1995-09-19 | Dana Corporation | Low emission piston ring |
| CN2380706Y (en) * | 1999-06-10 | 2000-05-31 | 任广辉 | Leakage-less piston ring |
| JP2005226522A (en) * | 2004-02-12 | 2005-08-25 | Riken Corp | Piston device for internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384061A (en) * | 2010-09-02 | 2012-03-21 | 梁嘉麟 | Piston ring structure capable of reducing clearance between piston and cylinder and processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102384065A (en) | 2012-03-21 |
| CN102384065B (en) | 2015-07-22 |
| CN102384068A (en) | 2012-03-21 |
| CN102418687B (en) | 2015-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151012 Address after: 315470 Zhejiang Province, Yuyao City Simen Town Guangming Road No. 126 Applicant after: China Jiliang University Address before: Hangzhou City, Zhejiang province 310018 Xiasha College of mechanical and electrical engineering China Jiliang University Applicant before: Liang Jialin |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |