CN106246400A - A kind of engine piston ring of carbon fiber-containing composite bed - Google Patents
A kind of engine piston ring of carbon fiber-containing composite bed Download PDFInfo
- Publication number
- CN106246400A CN106246400A CN201610843807.0A CN201610843807A CN106246400A CN 106246400 A CN106246400 A CN 106246400A CN 201610843807 A CN201610843807 A CN 201610843807A CN 106246400 A CN106246400 A CN 106246400A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- piston ring
- composite bed
- metallic layers
- porous metallic
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
Abstract
The invention discloses the engine piston ring of a kind of carbon fiber-containing composite bed, including piston ring body, one layer of carbon fiber composite bed is wrapped up in piston ring body, carbon fiber composite bed includes porous metallic layers and carbon fiber layer, carbon fiber composite bed by extruding by the way of with piston ring seamless link, the surface of porous metallic layers does not comes in contact with cylinder.After carbon fiber composite bed and piston ring body are combined closely, the uneven load produced because of the abnormal work of electromotor that dissipated and the series of problems of uneven heat, and then extend the response time that heat and load unusual fluctuation are changed by piston ring, reduce thermal stress and deformation tendency, serve voltage stabilizing and the effect of steady heat, finally extend the working cycle of piston ring；Carbon fiber layer is owing to having the advantage such as high intensity, high-modulus, it is possible to porous metallic layers generation synergism, makes carbon fiber composite bed can preferably give play to voltage stabilizing and the effect of steady heat, is effectively improved structural stability and the safety of piston ring.
Description
Technical field
The present invention relates to engine piston part field, particularly to the engine piston of a kind of carbon fiber-containing composite bed
Ring.
Background technology
Along with extending the engine for automobile life-span and improving the market demands of fuel efficiency, the work that electromotor is used
Plug ring proposes that width is little and lightweight, low-tension and the little requirement of friction loss.Piston ring is installed on piston, for real
The smooth reciprocating motion of the piston in existing cylinder, and the burning gases of high temperature are sealed.The work of piston ring is installed
Plug forms combustor in making cylinder, thus the produced blast pressure of the burning of the fuel in this combustor is converted into the rotation of bent axle
Turn.It is therefore desirable to the piston ring being installed on piston has the blast impulse that can bear in this combustor, and can be long-time
Ground, stably seal the function of the burning gases of high temperature.
The form of piston ring initial failure is broadly divided into deflection abrasion, inordinate wear, work surface abrade, rupture, glue ring etc. 5
Type, in fracture failure form, major influence factors be electromotor job insecurity and fitness not accurately, abrasion side
Formula and mounting means is incorrect, oil ring end face is uneven or uneven thickness, these influence factors can cause piston ring in work
During be susceptible to early fracture, and then cause electromotor work abnormal, such as, when the pistons work of electromotor, live
Plug ring bears uneven thermal shock power, the mechanical vibration force of cylinder and the transient heat flow from cylinder, piston ring from cylinder
On produce thermal stress and deformation tendency due to uneven load and uneven heat (uneven heat cause piston ring local mistake
Thermal region thermal coefficient of expansion is inconsistent with peripheral region), particularly when motor instant abnormal work, i.e. produce instantaneous overload
With instantaneous overheated time, thermal stress becomes big, and deformation tendency is further development of and makes piston ring faint deformation occur, this permanent worker
Make under environment, cause piston ring to rupture because of deformation, or heel and toe wear, thus make piston ring premature failure.These
Although problem probability of happening is less, impact is little, but there is the potential safety hazard of electromotor, owing to these problems do not obtain
To enough attention, structural stability and the safety of existing piston ring are not ideal, and its working cycle is all not as good as expection.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that starting of a kind of carbon fiber-containing composite bed
Machine piston ring, by improving structural stability and the safety of piston ring, is effectively improved the working cycle of piston ring, as much as possible
Reduce the potential safety hazard that piston ring brings.
The technical solution used in the present invention is as follows: the engine piston ring of a kind of carbon fiber-containing composite bed, including piston ring
Body, piston ring body is wrapped up one layer of carbon fiber composite bed, and carbon fiber composite bed includes porous metallic layers and carbon fiber layer, carbon
Fiber composite by extruding by the way of with piston ring seamless link, the surface of porous metallic layers does not comes in contact with cylinder.
Due to the setting of said structure, after carbon fiber composite bed and piston ring body are combined closely, uneven heat and not
Uniform load is first transferred to carbon fiber composite bed, and carbon fiber composite bed is while transmission heat, due to its porous having gold
Belonging to Rotating fields, the change of heat and load is after porous metals Rotating fields absorbs, it will with small change or unchanged table
Reveal to come, the uneven load produced because of the abnormal work of electromotor that dissipated and the series of problems of uneven heat, and then
Extend the response time that heat and load unusual fluctuation are changed by piston ring, reduce thermal stress and deformation tendency, serve voltage stabilizing
With the effect of steady heat, finally extend the working cycle of piston ring；Carbon fiber layer owing to having the advantage such as high intensity, high-modulus,
Carbon fiber composite bed can be made preferably to have given play to voltage stabilizing and the effect of steady heat with porous metallic layers generation synergism, has
Improve to effect structural stability and the safety of piston ring；Simultaneously as porous metallic layers is the most wear-resisting and intensity is relatively low,
Therefore the surface of porous metallic layers can not come in contact with cylinder, and to prevent from going into operation, metal level weares and teares in a large number more, carbon fiber due to
There is good wearability and heat conductivity, it is possible to while protection porous metallic layers is from abrasion, do not affect dissipating of piston ring
Heat, improves the conformability of carbon fiber composite board.
Further, porous metallic layers is made up of some porous metals paillon foils.
As preferably, porous metals paillon foil is made up of the metal polyporous material that Cu-Al solid solution is matrix phase, and its thickness is
0.1-0.3mm, porosity is 60-65%.
Further, the preparation method of the above-mentioned porous metals paillon foil that Cu-Al solid solution is matrix phase comprises the following steps:
Step 1, Cu powder and Al powder are uniformly mixed to form compound for 4:6 in mass ratio, will mix for 1:26 the most in mass ratio
Close in the mixed solution that material adds ethanol, ammonium hydrogen carbonate and PVB binding agent, wherein ethanol, ammonium hydrogen carbonate and the matter of PVB binding agent
Amount ratio is 50:3:1, is uniformly mixed, obtains suspension；
Step 2, being injected in the die cavity of mould by suspension, drying after forming forms diaphragm；
In step 3, the sintering die cavity that diaphragm loading and this diaphragm profile are matched, take out diaphragm after heat-agglomerating and get final product.
Further, porous metallic layers directly contacts with the surface of piston ring body, and carbon fiber layer is directly and piston ring body
Surface contact.The structure being layering with formation, makes carbon fiber composite bed preferably transmit heat and load.
Further, porous metallic layers and carbon fiber board form carbon fiber composite bed, carbon fiber by the way of compressing
Composite bed is wrapped in piston ring body, and by extruding by the way of with piston ring seamless link.
As a kind of alternative technical scheme, carbon fiber layer is interlaced with porous metallic layers and forms fold, then passes through
Compressing mode forms carbon fiber composite bed, and carbon fiber composite bed is wrapped in piston ring body, and by the side of extruding
Formula and piston ring seamless link.The section of the carbon fiber composite bed formed by this mode is wavy shaped configuration, and it also can make carbon
Fiber composite preferably transmits heat and load, and the bond strength piled up more layer by layer wants height, after a long time use, no
Easy to fall off.
As preferably, for keeping the original key property of piston ring, reducing the adding layers impact on piston ring, carbon fiber is multiple
The thickness closing layer is 0.5-1.5mm, preferably 0.8mm.
Further preferably, for ensureing that carbon fiber composite bed has above-mentioned effect, the thickness of porous metallic layers is 0.2-
0.6mm。
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, after carbon fiber composite bed and piston ring body are combined closely, dissipated the inequality produced because of the abnormal work of electromotor
Even load and the series of problems of uneven heat, and then extend the response time that heat and load unusual fluctuation are changed by piston ring,
Reduce thermal stress and deformation tendency, serve voltage stabilizing and the effect of steady heat, finally extend the working cycle of piston ring；
2, carbon fiber layer is owing to having the advantage such as high intensity, high-modulus, it is possible to porous metallic layers generation synergism, make carbon fine
Dimension composite bed can preferably give play to voltage stabilizing and the effect of steady heat, is effectively improved structural stability and the safety of piston ring
Property；Simultaneously as carbon fiber has good wearability and heat conductivity, it is possible to same from wear and tear at protection porous metallic layers
Time, make carbon fiber composite bed not affect the heat dispersion of piston ring, improve the adaptability of carbon fiber composite board.
Accompanying drawing explanation
Fig. 1 is that the piston ring of a kind of carbon fiber-containing composite bed of present invention cross sectional portion structure when being arranged on piston is shown
It is intended to；
Fig. 2 is the carbon fiber lamination layer structure schematic diagram of the present invention；
Fig. 3 is the another kind of structural representation of the carbon fiber composite bed of the present invention.
Labelling in figure: 1 is piston ring body, 201 is porous metallic layers, and 202 is carbon fiber layer, and 3 is piston, and 4 is cylinder.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1 to Figure 3, the engine piston ring of a kind of carbon fiber-containing composite bed, including piston ring body 1, piston
Wrapping up one layer of carbon fiber composite bed 2 on ring body, carbon fiber composite bed 2 includes porous metallic layers 201 and carbon fiber layer 202, carbon
Fiber composite 2 by extruding by the way of with piston ring body 1 seamless link, the surface of porous metallic layers 201 not with 4, cylinder
Raw contact, as it is shown in figure 1, piston ring is arranged in the annular chamber of piston 3, carbon fiber layer contacts with cylinder 4, to prevent cylinder 4
Wear and tear porous metallic layers 201 with piston 3.
Furthermore, porous metallic layers 201 is made up of some porous metals paillon foils.
As preferably, porous metals paillon foil is made up of the metal polyporous material that Cu-Al solid solution is matrix phase, and its thickness is
0.1-0.3mm, porosity is 60-65%.
Further, the preparation method of the above-mentioned porous metals paillon foil that Cu-Al solid solution is matrix phase comprises the following steps:
Step 1, Cu powder and Al powder are uniformly mixed to form compound for 4:6 in mass ratio, will mix for 1:26 the most in mass ratio
Close in the mixed solution that material adds ethanol, ammonium hydrogen carbonate and PVB binding agent, wherein ethanol, ammonium hydrogen carbonate and the matter of PVB binding agent
Amount ratio is 50:3:1, is uniformly mixed, obtains suspension；
Step 2, being injected in the die cavity of mould by suspension, drying after forming forms diaphragm；
In step 3, sintering die cavity diaphragm loading and this diaphragm profile matched, sintering temperature is risen to 580 DEG C, insulation
30min, then it is warming up to 1150 DEG C, it is incubated 90min, then furnace cooling is to room temperature, finally takes out diaphragm and get final product.
Furthermore, porous metallic layers directly contacts with the surface of piston ring body, and carbon fiber layer is directly and piston
The surface contact of ring body.The structure being layering with formation, makes carbon fiber composite bed preferably transmit heat and load.
Furthermore, as shown in Figures 2 and 3, porous metallic layers 201 and carbon fiber board are by the way of compressing
Formed carbon fiber composite bed 2, carbon fiber composite bed 2 is wrapped in piston ring body 1, and by extruding by the way of with piston ring without
Seam connects.
As a kind of alternative technical scheme, as it is shown on figure 3, carbon fiber layer 202 is interlaced with porous metallic layers 201 and shape
Becoming fold, then form carbon fiber composite bed by the way of compressing, carbon fiber composite bed 2 is wrapped in piston ring body 1
On, and by extruding by the way of with piston ring seamless link.The section of the carbon fiber composite bed formed by this mode is wave
Shape structure, it also can make carbon fiber composite bed preferably transmit heat and load, and the bond strength piled up more layer by layer wants height,
After a long time use, difficult drop-off.
It is preferably carried out mode as one, for keeping the original key property of piston ring, reduces adding layers to piston ring
Impact, the thickness of carbon fiber composite bed is 0.5-1.5mm, preferably 0.8mm.
It is preferably carried out mode as one, for ensureing that carbon fiber composite bed has above-mentioned effect, the thickness of porous metallic layers
Degree is 0.2-0.6mm, preferably 0.4mm.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (9)
1. an engine piston ring for carbon fiber-containing composite bed, including piston ring body, it is characterised in that in piston ring body
Wrapping up one layer of carbon fiber composite bed, carbon fiber composite bed includes porous metallic layers and carbon fiber layer, and carbon fiber composite bed is by squeezing
The mode of pressure and piston ring seamless link, the surface of porous metallic layers does not comes in contact with cylinder.
2. the engine piston ring of carbon fiber-containing composite bed as claimed in claim 1, it is characterised in that if porous metallic layers by
Dry porous metals paillon foil is constituted.
3. the engine piston ring of carbon fiber-containing composite bed as claimed in claim 2, it is characterised in that porous metals paillon foil by
Cu-Al solid solution is that the metal polyporous material of matrix phase is made, and its thickness is 0.1-0.3mm, and porosity is 60-65%.
4. the engine piston ring of carbon fiber-containing composite bed as claimed in claim 3, it is characterised in that porous metals paillon foil
Preparation method comprises the following steps:
Step 1, Cu powder and Al powder are uniformly mixed to form compound for 4:6 in mass ratio, will mix for 1:26 the most in mass ratio
Close in the mixed solution that material adds ethanol, ammonium hydrogen carbonate and PVB binding agent, wherein ethanol, ammonium hydrogen carbonate and the matter of PVB binding agent
Amount ratio is 50:3:1, is uniformly mixed, obtains suspension；
Step 2, being injected in the die cavity of mould by suspension, drying after forming forms diaphragm；
In step 3, the sintering die cavity that diaphragm loading and this diaphragm profile are matched, take out diaphragm after heat-agglomerating and get final product.
5. the engine piston ring of carbon fiber-containing composite bed as claimed in claim 1 or 2, it is characterised in that porous metallic layers
Directly contacting with the surface of piston ring body, carbon fiber layer directly contacts with the surface of piston ring body.
6. the engine piston ring of carbon fiber-containing composite bed as claimed in claim 1 or 2, it is characterised in that porous metallic layers
Forming carbon fiber composite bed by the way of compressing with carbon fiber board, carbon fiber composite bed is wrapped in piston ring body,
And by extruding by the way of with piston ring seamless link.
7. the engine piston ring of carbon fiber-containing composite bed as claimed in claim 1 or 2, it is characterised in that carbon fiber layer with
Porous metallic layers is interlaced and forms fold, then forms carbon fiber composite bed by the way of compressing, and carbon fiber is multiple
Close layer be wrapped in piston ring body, and by extruding by the way of with piston ring seamless link.
8. the engine piston ring of carbon fiber-containing composite bed as claimed in claim 1 or 2, it is characterised in that carbon fiber is combined
The thickness of layer is 0.5-1.5mm.
9. the engine piston ring of carbon fiber-containing composite bed as claimed in claim 1 or 2, it is characterised in that porous metallic layers
Thickness be 0.2-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843807.0A CN106246400B (en) | 2016-09-23 | 2016-09-23 | A kind of engine piston ring of carbon fiber-containing composite layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843807.0A CN106246400B (en) | 2016-09-23 | 2016-09-23 | A kind of engine piston ring of carbon fiber-containing composite layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246400A true CN106246400A (en) | 2016-12-21 |
| CN106246400B CN106246400B (en) | 2019-08-06 |
Family
ID=57610823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610843807.0A Active CN106246400B (en) | 2016-09-23 | 2016-09-23 | A kind of engine piston ring of carbon fiber-containing composite layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106246400B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242530A (en) * | 2016-12-23 | 2018-07-03 | 北京好风光储能技术有限公司 | A kind of lithium slurry battery and its negative plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2241993B (en) * | 1990-02-27 | 1994-10-05 | Daido Metal Co | Bearings |
| JP2002327750A (en) * | 2001-04-27 | 2002-11-15 | Ntn Corp | Multi-layered bearing |
| CN102678798A (en) * | 2012-04-13 | 2012-09-19 | 江苏安捷汽车配件有限公司 | Manufacture method of automobile brake pad |
| CN202719131U (en) * | 2012-05-18 | 2013-02-06 | 中山市亚泰机械实业有限公司 | Piston elastic sealing ring and piston mechanism |
| CN103267166A (en) * | 2013-05-23 | 2013-08-28 | 中亚阀门有限公司 | Piston-type zero leakage gate valve |
| CN206256971U (en) * | 2016-09-23 | 2017-06-16 | 丁仰阳 | A kind of engine piston ring of carbon fiber-containing composite bed |
-
2016
- 2016-09-23 CN CN201610843807.0A patent/CN106246400B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2241993B (en) * | 1990-02-27 | 1994-10-05 | Daido Metal Co | Bearings |
| JP2002327750A (en) * | 2001-04-27 | 2002-11-15 | Ntn Corp | Multi-layered bearing |
| CN102678798A (en) * | 2012-04-13 | 2012-09-19 | 江苏安捷汽车配件有限公司 | Manufacture method of automobile brake pad |
| CN202719131U (en) * | 2012-05-18 | 2013-02-06 | 中山市亚泰机械实业有限公司 | Piston elastic sealing ring and piston mechanism |
| CN103267166A (en) * | 2013-05-23 | 2013-08-28 | 中亚阀门有限公司 | Piston-type zero leakage gate valve |
| CN206256971U (en) * | 2016-09-23 | 2017-06-16 | 丁仰阳 | A kind of engine piston ring of carbon fiber-containing composite bed |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242530A (en) * | 2016-12-23 | 2018-07-03 | 北京好风光储能技术有限公司 | A kind of lithium slurry battery and its negative plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106246400B (en) | 2019-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11511515B2 (en) | Piston including a composite layer applied to a metal substrate | |
| CN104399966B (en) | A kind of containing Fe Nano-Powders powder metallurgical valve seat | |
| US20120024255A1 (en) | Piston for an internal combustion engine | |
| CN103890364A (en) | Piston for an internal combustion engine and method for producing same | |
| CN106246400A (en) | A kind of engine piston ring of carbon fiber-containing composite bed | |
| CN206256971U (en) | A kind of engine piston ring of carbon fiber-containing composite bed | |
| WO2003006800A1 (en) | Sole plate for turbine and power generating plant equipment | |
| JP2011505513A (en) | Thin metal powder cylinder liner consisting of multiple pieces | |
| US9816597B2 (en) | Sintered pulley | |
| CN105179540B (en) | The flat spring and the compressor using the flat spring of fan-shaped spring arm and its composition | |
| CN203285561U (en) | Engine piston | |
| CN202579195U (en) | Rotary fluid machine | |
| KR101322300B1 (en) | Method for manufacturing a engine piston combined with a sintered insert ring for the diesel engine | |
| CN109622975B (en) | Powder metallurgy combined sintering type plunger pump cylinder body and preparation method thereof | |
| CN206571592U (en) | A kind of dorsad double end Stirling motor device | |
| CN201310388Y (en) | Lubricating gasket used between supporting surfaces of low-pressure internal and external cylinders of steam turbine | |
| CN211525027U (en) | Piston compressor with heat insulation structure | |
| CN212202277U (en) | Anti-crack automobile piston | |
| CN208734442U (en) | A kind of automobile heat dissipation type cylinder jacket | |
| KR101424007B1 (en) | A sintered insert ring joined with oil gallery in diesel engine piston, method for manufacturing it, and piston comprising it | |
| CN104696398A (en) | Hydraulic brake wheel cylinder | |
| CN210724390U (en) | Motor assembly, compressor with same and air conditioner | |
| CN212838363U (en) | Compressor heat insulation structure and compressor | |
| CN202165245U (en) | Exhaust and silencing structure for refrigerator compressor | |
| CN114810413B (en) | Duplex double-ring micro-feeding automatic compensation sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190711 Address after: 314205 No. 1 Cangqing Road, Xincang Town, Pinghu City, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Huanyu Auto Fittings Co., Ltd. Address before: 610000 Wuhou District Wuhou new town administrative committee, Chengdu, Sichuan, 2 Wuyi East Road 15, 1 units, 2 level 231. Applicant before: CHENGDU JIUSHIDU INDUSTRIAL PRODUCT DESIGN CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |