CN104791127B - Combined piston - Google Patents
Combined piston Download PDFInfo
- Publication number
- CN104791127B CN104791127B CN201510078035.1A CN201510078035A CN104791127B CN 104791127 B CN104791127 B CN 104791127B CN 201510078035 A CN201510078035 A CN 201510078035A CN 104791127 B CN104791127 B CN 104791127B
- Authority
- CN
- China
- Prior art keywords
- circular
- basin
- piston
- basin body
- double layer
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/0069—Multi-part pistons the crown and skirt being interconnected by the gudgeon pin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0084—Pistons the pistons being constructed from specific materials
Abstract
The invention relates to pistons, in particular to a combined piston. The problem that high temperature of the center portion of an existing piston can not be maintained is solved. The combined piston comprises a piston skirt, a piston head, a circular lantern ring and a center shaft. The piston skirt comprises a circular aluminum alloy basin body with a downward opening. A first shaft hole penetrates through the center of the top wall of the circular aluminum alloy basin body. A pin hole penetrates through the side wall of the circular aluminum alloy basin body. The piston head comprises a circular double-layer basin body with an upward opening. The circular double-layer basin body is composed of an outer-layer steel alloy basin body and an inner-layer ceramic basin body. A second shaft hole penetrates through the center of the bottom wall of the circular double-layer basin body. An annular protrusion extends outwards from the upper edge of the outer side wall of the circular double-layer basin body. The outer side wall of the annular protrusion is flush with the outer side wall of the piston skirt. The outer bottom wall of the circular double-layer basin body is tightly combined with the outer top wall of the circular aluminum alloy basin body. The combined piston is suitable for an engine.
Description
Technical field
The present invention relates to piston, specifically a kind of built-up piston.
Background technology
In motor process, once raising, heat will be rapidly transferred to its base to the temperature of the center portion thereof position to existing piston
Portion and cylinder sleeve, thus causing the centre of piston cannot keep high temperature, so as to cause fuel oil to carry out in cylinder sleeve fully
Burning, in turn results in pollution emission.Based on this, it is necessary to invent a kind of brand-new piston, exist to solve existing piston
The problems referred to above.
The content of the invention
The present invention is in order to solve the problems, such as that existing piston the center portion thereof position cannot keep high temperature, there is provided one kind combination is lived
Plug.
The present invention adopts the following technical scheme that realization：A kind of built-up piston, including piston skirt, piston crown, circle
Shape ring set, central shaft；Wherein, piston skirt includes the circular aluminium alloy basin-like body that Open Side Down；Circular aluminium alloy basin-like body
Roof middle thereof offers the first axis hole；The side wall insertion of circular aluminium alloy basin-like body offers pin-and-hole；Piston crown includes
The Double Layer Circular basin-like body of opening upwards；Double Layer Circular basin-like body is by outer layer steel alloy basin-like body and internal layer ceramics basin-like body group
Into；The diapire middle thereof of Double Layer Circular basin-like body offers the second axis hole；The lateral wall top edge of Double Layer Circular basin-like body to
It is raised that outer extension is provided with annular；The raised lateral wall of annular flushes with the lateral wall of piston skirt；Double Layer Circular peviform
The exterior bottom wall of body is combined closely with the outer roof of circular aluminium alloy basin-like body；Second axis hole is mutually communicated with the first axis hole；It is circular
The number of ring set is two；One of circular rings set is closely set in the lateral wall top of Double Layer Circular basin-like body, another
Circular rings set is closely set in the lateral wall bottom of Double Layer Circular basin-like body；Two circular ring sets are respectively positioned under annular projection
Side；The upper end of central shaft is provided with conical bolt head；The lower end of central shaft is provided with disc bolt head；Central shaft is arranged in first simultaneously
In axis hole and the second axis hole；Conical bolt head is combined closely with the inner bottom wall of Double Layer Circular basin-like body；Disc bolt head and circle
The inner roof wall of aluminium alloy basin-like body is combined closely.
Compared with existing piston, a kind of built-up piston of the present invention by using internal layer ceramics basin-like body it is good every
Hot property, and central shaft is made using heating resisting metal, the heat energy in centre of piston is effectively prevented to its base portion and cylinder sleeve
Conduction, and the temperature in the centre of piston is raised rapidly, so that the centre of piston can persistently be protected
High temperature is held, so that fuel oil can fully be burnt in cylinder sleeve, and then pollution emission is effectively reduced.
The present invention efficiently solves the problems, such as that existing piston the center portion thereof position cannot keep high temperature, it is adaptable to electromotor.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the piston skirt of the present invention.
Fig. 3 is the structural representation of the piston crown of the present invention.
Fig. 4 is the structural representation of the central shaft of the present invention.
In figure：1- piston skirts, 2- piston crowns, 3- circle ring sets, 4- central shafts, the axis holes of 5- first, 6- pin-and-holes, 7- the
Two axis holes.
Specific embodiment
A kind of built-up piston, including piston skirt 1, piston crown 2, circular ring set 3, central shaft 4；
Wherein, piston skirt 1 includes the circular aluminium alloy basin-like body that Open Side Down；In the roof of circular aluminium alloy basin-like body
Centre insertion offers the first axis hole 5；The side wall insertion of circular aluminium alloy basin-like body offers pin-and-hole 6；
Piston crown 2 includes the Double Layer Circular basin-like body of opening upwards；Double Layer Circular basin-like body is by outer layer steel alloy peviform
Body and internal layer ceramics basin-like body composition；The diapire middle thereof of Double Layer Circular basin-like body offers the second axis hole 7；Double Layer Circular basin
The lateral wall top edge of shape body stretches out and is provided with annular projection；The raised lateral wall of annular and the outside of piston skirt
Wall is flushed；The exterior bottom wall of Double Layer Circular basin-like body is combined closely with the outer roof of circular aluminium alloy basin-like body；Second axis hole 7 and
One axis hole 5 is mutually communicated；
The number of circular ring set 3 is two；One of circle ring set 3 is closely set in the outside of Double Layer Circular basin-like body
Wall top, another circular ring set 3 is closely set in the lateral wall bottom of Double Layer Circular basin-like body；Two circular equal positions of ring set 3
In the lower section that annular is raised；
The upper end of central shaft 4 is provided with conical bolt head；The lower end of central shaft 4 is provided with disc bolt head；Central shaft 4 is worn simultaneously
In the first axis hole 5 and the second axis hole 7；Conical bolt head is combined closely with the inner bottom wall of Double Layer Circular basin-like body；Disc
Bolt head is combined closely with the inner roof wall of circular aluminium alloy basin-like body.
When being embodied as, the central shaft 4 is made using heating resisting metal.
Claims (2)
1. a kind of built-up piston, including piston skirt（1）, piston crown（2）, central shaft（4）；
Wherein, piston skirt（1）Including the circular aluminium alloy basin-like body that Open Side Down；The roof central authorities of circular aluminium alloy basin-like body
Insertion offers the first axis hole（5）；The side wall insertion of circular aluminium alloy basin-like body offers pin-and-hole（6）；Piston crown（2）Including
The Double Layer Circular basin-like body of opening upwards；The diapire middle thereof of Double Layer Circular basin-like body offers the second axis hole（7）；It is circular double
The lateral wall top edge of layer basin-like body stretches out and is provided with annular projection；The raised lateral wall of annular and piston skirt
Lateral wall flushes；The exterior bottom wall of Double Layer Circular basin-like body is combined closely with the outer roof of circular aluminium alloy basin-like body；Second axis hole
（7）With the first axis hole（5）It is mutually communicated；
It is characterized in that：Double Layer Circular basin-like body is made up of outer layer steel alloy basin-like body and internal layer ceramics basin-like body；
Also include circular ring set（3）；Circular ring set（3）Number be two；One of circle ring set（3）Closely it is set in circle
The lateral wall top of shape bilayer basin-like body, another circular ring set（3）Under being closely set in the lateral wall of Double Layer Circular basin-like body
Portion；Two circular ring sets（3）It is respectively positioned on the raised lower section of annular；
Central shaft（4）Upper end be provided with conical bolt head；Central shaft（4）Lower end be provided with disc bolt head；Central shaft（4）Simultaneously
It is arranged in the first axis hole（5）With the second axis hole（7）It is interior；Conical bolt head is combined closely with the inner bottom wall of Double Layer Circular basin-like body；
Disc bolt head is combined closely with the inner roof wall of circular aluminium alloy basin-like body.
2. a kind of built-up piston according to claim 1, it is characterised in that：The central shaft（4）Using heating resisting metal system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078035.1A CN104791127B (en) | 2015-02-14 | 2015-02-14 | Combined piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078035.1A CN104791127B (en) | 2015-02-14 | 2015-02-14 | Combined piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104791127A CN104791127A (en) | 2015-07-22 |
| CN104791127B true CN104791127B (en) | 2017-04-19 |
Family
ID=53556224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510078035.1A Active CN104791127B (en) | 2015-02-14 | 2015-02-14 | Combined piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104791127B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2212922B2 (en) * | 1972-03-17 | 1976-02-05 | Karl Schmidt Gmbh, 7107 Neckarsulm | Assembly of steel piston crown with aluminium piston skirt - uses connecting screwring with opposite hand threads |
| CN101614278A (en) * | 2009-08-03 | 2009-12-30 | 石家庄金刚内燃机零部件集团有限公司 | A kind of carbon material and metallic material built-up piston |
| JP2012031814A (en) * | 2010-08-02 | 2012-02-16 | Toyota Motor Corp | Piston of internal combustion engine, and method of manufacturing the same |
| JP2014058945A (en) * | 2012-09-19 | 2014-04-03 | Suzuki Motor Corp | Piston for internal combustion engine |
| CN203962183U (en) * | 2014-07-01 | 2014-11-26 | 舟山和成机械有限公司 | A kind of Novel diesel engine piston |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004029877A1 (en) * | 2004-06-19 | 2006-01-05 | Mahle Gmbh | Built piston for an internal combustion engine |
-
2015
- 2015-02-14 CN CN201510078035.1A patent/CN104791127B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2212922B2 (en) * | 1972-03-17 | 1976-02-05 | Karl Schmidt Gmbh, 7107 Neckarsulm | Assembly of steel piston crown with aluminium piston skirt - uses connecting screwring with opposite hand threads |
| CN101614278A (en) * | 2009-08-03 | 2009-12-30 | 石家庄金刚内燃机零部件集团有限公司 | A kind of carbon material and metallic material built-up piston |
| JP2012031814A (en) * | 2010-08-02 | 2012-02-16 | Toyota Motor Corp | Piston of internal combustion engine, and method of manufacturing the same |
| JP2014058945A (en) * | 2012-09-19 | 2014-04-03 | Suzuki Motor Corp | Piston for internal combustion engine |
| CN203962183U (en) * | 2014-07-01 | 2014-11-26 | 舟山和成机械有限公司 | A kind of Novel diesel engine piston |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104791127A (en) | 2015-07-22 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191205 Address after: 314200 zhengxinqiao, Ma ma'nan village, Caoqiao street, Pinghu City, Jiaxing City, Zhejiang Province (second floor of office building of Pinghu building materials machinery and equipment factory) Patentee after: Pinghu Liyang Machinery Co.,Ltd. Address before: 048100 people's Government of Qin Chi County town, Yangcheng County, Jincheng, Shanxi Co-patentee before: Chen Xujun Patentee before: Wu Sanshe |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220810 Address after: 1st Floor, Neibei Building, No. 111, Jiulong Road, Caoqiao Street, Pinghu City, Jiaxing City, Zhejiang Province, 314200 Patentee after: Zhejiang Fuku Industrial Technology Co.,Ltd. Address before: 314200 zhengxinqiao, mangcun, Caoqiao street, Pinghu City, Jiaxing City, Zhejiang Province Patentee before: Pinghu Liyang Machinery Co.,Ltd. |