CN103437900A - Piston top combustion chamber - Google Patents
Piston top combustion chamber Download PDFInfo
- Publication number
- CN103437900A CN103437900A CN2013103320191A CN201310332019A CN103437900A CN 103437900 A CN103437900 A CN 103437900A CN 2013103320191 A CN2013103320191 A CN 2013103320191A CN 201310332019 A CN201310332019 A CN 201310332019A CN 103437900 A CN103437900 A CN 103437900A
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- piston top
- top combustion
- piston
- firing chamber
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a piston top combustion chamber. An axial section main body of the piston top combustion chamber is in a double-order omega shape formed by a first-order omega-shaped combustion chamber (1) and a second-order omega-shaped combustion chamber (2), and the bottom part of the piston top combustion chamber is formed by two arc-shaped sections and a straight line section which is tangent to the two arc-shaped sections. According to the piston top combustion chamber disclosed by the invention, by reasonably designing the structure of each part of the piston top combustion chamber, the heat loss and the flow loss of the piston top combustion chamber are smaller, the explosion pressure is increased, the heat load is smaller, and the requirement in low emission standard can be met.
Description
Technical field
The present invention relates to a kind of bowl in piston.
Background technique
In prior art, bowl in piston is generally single order ω shape firing chamber, and combustion chamber heat loss and the flow losses of this structure are larger, and heat load is also larger, can not meet the requirement of low emission standard.
Summary of the invention
The purpose of this invention is to provide a kind of thermal loss and flow losses smaller, can meet the bowl in piston of low emission standard-required.
The technological scheme that the present invention adopted for achieving the above object is: a kind of bowl in piston, the axial section main body of described firing chamber is the two rank ω shape consisted of single order ω shape firing chamber (1) and second order ω shape firing chamber (2), and bottom reaches the straightway tangent with two arc sections by two arc sections and forms.
Described two arc section radiuses are respectively R10mm and R13mm.
A kind of bowl in piston of the present invention, by reasonable design firing chamber each several part structure, make the combustion chamber heat loss smaller with flow losses, and pressure of explosion increases, and heat load is also smaller, can meet the requirement of low emission standard.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of bowl in piston of the present invention.
In figure: 1, single order ω shape firing chamber; 2, second order ω shape firing chamber.
Embodiment
As shown in Figure 1, bowl in piston, the two rank ω shape of the axial section main body of firing chamber for being formed by single order ω shape firing chamber 1 and second order ω shape firing chamber 2, bottom reaches the straightway tangent with two arc sections by two arc sections and forms, two arc section radiuses are respectively R10mm and R13mm, ω shape firing chamber diameter is approximately Φ 126mm, the degree of depth is 24mm, the knuckle of aditus laryngis part and bottom arc section is at R10mm, bowl in piston of the present invention, by reasonable design firing chamber each several part structure, make the combustion chamber heat loss smaller with flow losses, pressure of explosion increases, heat load is also smaller, can meet the requirement of low emission standard.
Claims (2)
1. a bowl in piston, it is characterized in that: the two rank ω shape of the axial section main body of described firing chamber for consisting of single order ω shape firing chamber (1) and second order ω shape firing chamber (2), bottom reaches the straightway tangent with two arc sections by two arc sections and forms.
2. a kind of bowl in piston according to claim 1, it is characterized in that: described two arc section radiuses are respectively R10mm and R13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103320191A CN103437900A (en) | 2013-08-02 | 2013-08-02 | Piston top combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103320191A CN103437900A (en) | 2013-08-02 | 2013-08-02 | Piston top combustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103437900A true CN103437900A (en) | 2013-12-11 |
Family
ID=49691604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103320191A Pending CN103437900A (en) | 2013-08-02 | 2013-08-02 | Piston top combustion chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103437900A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2025804A1 (en) * | 1969-05-28 | 1971-02-18 | Mondial Piston Dott GaIh Ercole & C, S.p A., Turin (Italien) | Pistons for internal combustion engines |
| JPS5084602U (en) * | 1973-12-11 | 1975-07-19 | ||
| CN2390010Y (en) * | 1999-07-23 | 2000-08-02 | 广西玉柴机器股份有限公司 | Piston combustion chamber of YC 6105QC diesel engine |
| EP1630380A1 (en) * | 2004-08-23 | 2006-03-01 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Method to inject fuel directly into the combustion chamber of an engine and system comprising a fuel injector and a piston to carry out the method |
| CN101379276A (en) * | 2006-02-08 | 2009-03-04 | 日野自动车株式会社 | Combustion chamber structure of direct injection type diesel engine |
| CN101460722A (en) * | 2006-05-04 | 2009-06-17 | 戴姆勒股份公司 | Method for operating an internal combustion engine and internal combustion engine for such a method |
| CN102661193A (en) * | 2012-05-16 | 2012-09-12 | 大连理工大学 | Double layer split combustion system of direct injection diesel engine |
| US20120234285A1 (en) * | 2011-03-17 | 2012-09-20 | Cummins Intellectual Property, Inc. | Piston for internal combustion engine |
-
2013
- 2013-08-02 CN CN2013103320191A patent/CN103437900A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2025804A1 (en) * | 1969-05-28 | 1971-02-18 | Mondial Piston Dott GaIh Ercole & C, S.p A., Turin (Italien) | Pistons for internal combustion engines |
| JPS5084602U (en) * | 1973-12-11 | 1975-07-19 | ||
| CN2390010Y (en) * | 1999-07-23 | 2000-08-02 | 广西玉柴机器股份有限公司 | Piston combustion chamber of YC 6105QC diesel engine |
| EP1630380A1 (en) * | 2004-08-23 | 2006-03-01 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Method to inject fuel directly into the combustion chamber of an engine and system comprising a fuel injector and a piston to carry out the method |
| CN101379276A (en) * | 2006-02-08 | 2009-03-04 | 日野自动车株式会社 | Combustion chamber structure of direct injection type diesel engine |
| CN101460722A (en) * | 2006-05-04 | 2009-06-17 | 戴姆勒股份公司 | Method for operating an internal combustion engine and internal combustion engine for such a method |
| US20120234285A1 (en) * | 2011-03-17 | 2012-09-20 | Cummins Intellectual Property, Inc. | Piston for internal combustion engine |
| CN102661193A (en) * | 2012-05-16 | 2012-09-12 | 大连理工大学 | Double layer split combustion system of direct injection diesel engine |
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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 | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131211 |