CN2620764Y - Strong eddy combustion chamber for engine - Google Patents
Strong eddy combustion chamber for engine Download PDFInfo
- Publication number
- CN2620764Y CN2620764Y CNU032346085U CN03234608U CN2620764Y CN 2620764 Y CN2620764 Y CN 2620764Y CN U032346085 U CNU032346085 U CN U032346085U CN 03234608 U CN03234608 U CN 03234608U CN 2620764 Y CN2620764 Y CN 2620764Y
- Authority
- CN
- China
- Prior art keywords
- engine
- piston
- concave surface
- cylinder head
- 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.)
- Expired - Fee Related
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- 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
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an engine swirl combustion chamber. A concave surface (8) is arranged in a cylinder end (4), an induction valve (1) and an exhaust valve (3) are respectively arranged on the concave surface (8) of the cylinder end (4); a gap (2) is arranged at the top of a piston (5), a convex edge (7) higher than the plane of the top part of the piston (5) is arranged at the edge of the gap (2). The utility model is characterized in that the fuel oil is saved, the exhaust emission is decreased, the combustion performance and the anti-detonating quality of the engine are improved, and the operation of the engine is stable.
Description
(1) technical field
The utility model relates to a kind of engine chamber, particularly a kind ofly can save fuel oil, reduce toxic emission motorcycle engine HTCC engine.
(2) background technique
The shape of engine chamber directly influences the part energy of motor, as what of oil consumption, the concentration of combustion mixture, and the situation of toxic emission, the height of knock rating, the state of stable working etc., thus influence life-span of the riding comfort and the motor of motorcycle.At present, traditional piston head generally is convex or flat-top, the structure of firing chamber is determined by the structure of cylinder head fully, although the designer changes the shape of firing chamber in idea, enlarge the volume of firing chamber, reduce the surface to volume ratio of firing chamber, but owing to be subjected to the influence of cylinder head structure, its effect is still not obvious.
(3) summary of the invention
The purpose of this utility model provides a kind of motorcycle engine HTCC engine.It has increased squish area in the firing chamber, enlarged the volume of firing chamber, has reduced the surface to volume ratio of firing chamber, can make combustion gas form high-speed eddy.Have the fuel oil of saving, reduce the toxic emission characteristics.
For reaching above-mentioned purpose, the utility model is provided with concave surface in cylinder head, and its concave surface is spherical that eaves is arranged.Intake valve, exhaust valve are installed in respectively on the concave surface of cylinder head.The top of piston is provided with depression, and the edge of depression is the chimb that is higher than the piston head plane.
The utility model is owing to be provided with the firing chamber of band concave surface in cylinder head, and be provided with depression at the top of piston, increased squish area, enlarged the volume of firing chamber, reduced the surface to volume ratio of firing chamber, can save the combustion performance and the knock rating of fuel oil, reduction toxic emission, raising motor, make engine mildness.
The utility model is described in further detail below in conjunction with drawings and Examples.
(4) description of drawings
Fig. 1 is a structure diagram of the present utility model;
Fig. 2 be among Fig. 1 A-A to view;
Fig. 3 is a squish area schematic representation of the present utility model.
(5) embodiment
Referring to Fig. 1, Fig. 2, in cylinder head 4, cast concave surface 8, its concave surface 8 is for there being the spherical of eaves 9.Intake valve 1, exhaust valve 3 are installed in respectively on the concave surface 8 of cylinder head 4.The top of piston 5 is provided with depression 2, and the edge of depression 2 is the chimb 7 that is approximately higher than piston 5 top plan 6, and the both sides of its chimb 7 are the inclined-plane.Depression 2 is an abnormity, and the chimb 7 of its edge protuberance replaces arrangement by circular arc A, A ' and circular arc B, B ' and connects and composes.Plane 6 around the abnormity circle of piston 5 top projectioies is with the eaves 9 formation squish areas 10 of cylinder head 4 spherical concave surfaces 8.Constitute firing chamber 11 jointly by the concave surface 8 in the cylinder head 4, the depression 2 and the squish area 10 at piston 5 tops, realized the expansion of firing chamber 11 volumes, the reducing of surface to volume ratio.
During engine operation, in aspirating stroke, the mixed gas that the fuel oil that is inhaled into, air are formed forms one high-speed eddy in firing chamber 11; In compression stroke, the squish area 10 around the firing chamber quickens the eddy current rotation.When the spark ignitor mixed gas, flame is propagated fast, and very fast completion of combustion.Because rapid combustion can produce more heat, the combustion efficiency height, corresponding output power height makes piston 5 energy of maximum can be passed to bent axle.
Because the formation of firing chamber 11 squish areas 10, quench area is big, and the squish gap is little, the low mixed gas of concentration can impel inflammable mixture more to concentrate near the spark plug, make spark plug very sensitive, even also can be lighted to the concentration-response of mixed gas, both save fuel oil, reduced exhaust pollution again.And, because the squish area 10 of firing chamber 11 is far away from spark plug, the inflammable mixture in the compression stroke is lowered the temperature in squish area 10, help improving knock rating, make engine operation softer, combustion noise reduces.
Because the depression 2 at piston 5 tops has constituted the segment space of firing chamber 11, can make piston 5 share the heat load of firing chamber 11 effectively, high temperature in the firing chamber 11 is passed to cylinder body by piston ring, make cylinder body and cylinder head 4 simultaneously to aerial distribute heat, reach the purpose of quick heat radiating, reduce the heat load of motor, improve the working life of motor.
The radius of circular arc A, A ' and circular arc B, B ' must guarantee to get out of the way under the prerequisite of intake valve 1, exhaust valve 3, can be identical or different, and or not the same center of circle.The radius of circular arc A, A ' can be identical or different, in the same center of circle or not in the same center of circle; The radius of circular arc B, B ' can be identical or different, not in the same center of circle.
Claims (3)
1. a motor HTCC engine comprises cylinder head, intake valve, exhaust valve, piston, it is characterized in that: be provided with concave surface (8) in cylinder head (4), intake valve (1), exhaust valve (3) are installed in respectively on the concave surface (8) of cylinder head (4); The top of piston (5) is provided with depression (2), and the edge of depression (2) is for being higher than the chimb (7) of piston (5) top plan (6).
2. motor HTCC engine according to claim 1 is characterized in that: the concave surface (8) of cylinder head (4) is for there being the spherical of eaves (9).
3. motor HTCC engine according to claim 1 is characterized in that: piston (5) top depression (2) edge chimb (7) alternately arrange by circular arc (A, A ') and circular arc (B, B ') and connect and compose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032346085U CN2620764Y (en) | 2003-05-27 | 2003-05-27 | Strong eddy combustion chamber for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032346085U CN2620764Y (en) | 2003-05-27 | 2003-05-27 | Strong eddy combustion chamber for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620764Y true CN2620764Y (en) | 2004-06-16 |
Family
ID=34249300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032346085U Expired - Fee Related CN2620764Y (en) | 2003-05-27 | 2003-05-27 | Strong eddy combustion chamber for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620764Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550887B (en) * | 2009-01-09 | 2010-11-24 | 盐城兴动机械有限公司 | Burning chamber of diesel engine |
| CN102762836A (en) * | 2010-02-15 | 2012-10-31 | 丰田自动车株式会社 | Internal combustion engine piston |
| CN109519299A (en) * | 2018-12-29 | 2019-03-26 | 昆山三动力有限公司 | Piston, internal combustion engine and motive power machine device |
-
2003
- 2003-05-27 CN CNU032346085U patent/CN2620764Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550887B (en) * | 2009-01-09 | 2010-11-24 | 盐城兴动机械有限公司 | Burning chamber of diesel engine |
| CN102762836A (en) * | 2010-02-15 | 2012-10-31 | 丰田自动车株式会社 | Internal combustion engine piston |
| CN102762836B (en) * | 2010-02-15 | 2014-08-27 | 丰田自动车株式会社 | Internal combustion engine piston |
| US8978611B2 (en) | 2010-02-15 | 2015-03-17 | Toyota Jidosha Kabushiki Kaisha | Piston for internal combustion |
| CN109519299A (en) * | 2018-12-29 | 2019-03-26 | 昆山三动力有限公司 | Piston, internal combustion engine and motive power machine device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANSHE MOTORCYCLE CO., LTD., CHONGQING Free format text: FORMER OWNER: TECHNOLOGY CENTER, BUILDING INDUSTRY (GROUP) CO., LTD. Effective date: 20060908 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060908 Address after: Zheng Jie 400050 Xiejiawan Jiulongpo District of Chongqing City No. 47 Patentee after: Chongqing Jianshe Motorcycle Co., Ltd. Address before: Zheng Jie 400050 Xiejiawan Jiulongpo District of Chongqing City No. 47 Patentee before: Technological Centre, Building Industry (Group) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040616 Termination date: 20100527 |