CN201025150Y - A gas cylinder cover with single air supply valve for diesel engine - Google Patents
A gas cylinder cover with single air supply valve for diesel engine Download PDFInfo
- Publication number
- CN201025150Y CN201025150Y CNU2007200684529U CN200720068452U CN201025150Y CN 201025150 Y CN201025150 Y CN 201025150Y CN U2007200684529 U CNU2007200684529 U CN U2007200684529U CN 200720068452 U CN200720068452 U CN 200720068452U CN 201025150 Y CN201025150 Y CN 201025150Y
- Authority
- CN
- China
- Prior art keywords
- air
- diesel engine
- seat ring
- valve seat
- door
- 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 - Lifetime
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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 relates to a single gas inlet door cylinder cover for the diesel engine; the gas door mat hole of the bottom of the cylinder cover is provided with an eccentric chamfer; the middle of the eccentric chamfer is separated from the middle of the gas door mat ring; the moving direction of the eccentric chamfer is opposite with the rotating direction of the gas passage of the cylinder cover. When the single gas door inlet door has a low opening degree, the direction of the air flow can be changed by the effect of the eccentric chamfer in the gas door hole with the gas inlet door; the utility model can enhance the worm intensity of the diesel engine, improves the air vortex phenomena when the gas inlet door has a low opening degree and is beneficial to the mixing up of the oil and the air. The utility model is convenient to be operated, has a low cost and is applicable to a plurality of engines.
Description
One, technical field
The utility model relates to a kind of design of cylinder cover for diesel engine air valve seat ring.
Two, technical background
Because direct injection engine has remarkable advantages aspect fuel consume, so the toroidal swirl type combustion system is widely used in the diesel engine field.But only rely on fuel oil high-pressure injection atomizing to be difficult to guarantee to enter the interior fuel oil of cylinder and the good mixing of air, so direct injection engine that most of at present requirement is turned round in wide speed range, generally adopt the design of cylinder head spiral inlet duct or tangential inlet duct, by aerodynamic force, improve the strength of vortex that enters air in the cylinder, promote fuel oil and Air mixing.But, under the less low aperture situation of diesel engine list intake valve cylinder head intake valve lift, the air flows that enters cylinder is difficult to form tangible eddy current or strength of vortex is very weak, and this will be unfavorable for cylinder combustion oil and Air mixing, influences diesel engine performance.
Three, summary of the invention
The utility model purpose just is to make direct injection engine, when single intake valve cylinder head intake valve hangs down aperture, improves the air swirl intensity that enters in the cylinder, improves fuel oil and Air mixing quality, optimizes diesel engine work performance.
The utility model is achieved in that air valve seat ring is fixedly installed on the diesel engine list intake valve cylinder head, the runner that air forms between intake valve and air valve seat ring enters cylinder, place, aperture in the air valve seat ring hole of cylinder head bottom surface, process an eccentric chamfer, center, eccentric chamfer misalignment air valve seat ring hole, the offset direction of eccentric chamfer is opposite with the Hand of spiral of cylinder head spiral inlet duct.
When the diesel engine intake door hangs down aperture, because aperture, single intake valve cylinder head air valve seat ring hole place's eccentric chamfer and intake valve acting in conjunction, meeting forcibly changing air flow direction makes the air that enters cylinder produce stronger eddy current, improves cylinder combustion oil and Air mixing.
Four, description of drawings
Fig. 1 is the schematic representation of place, aperture, cylinder head air valve seat ring hole eccentric chamfer;
Fig. 2 is that the A of Fig. 1 is to view.
Among the figure, 1 is eccentric chamfer, and 2 is cylinder head, and 3 is air valve seat ring, and 4 is intake valve, and 5 is the eccentric chamfer center, and 6 is center, air valve seat ring hole, and 7 is the air valve seat ring hole, and 8 is the cylinder head bottom surface, and 9 is spiral inlet duct.
Five, preferred forms
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, air valve seat ring 3 is fixedly installed on the diesel engine list intake valve cylinder head 2, the runner that air forms between intake valve 4 and air valve seat ring 3 enters cylinder, place, aperture in the air valve seat ring hole 7 of cylinder head bottom surface 8, process an eccentric chamfer 1, center, air valve seat ring hole 6 is departed from eccentric chamfer center 5, and the offset direction of eccentric chamfer 1 is opposite with the sense of rotation of cylinder head spiral inlet duct 9.Eccentric chamfer center 5 is with respect to the offset X at center, air valve seat ring hole 6, the angle β at the conical surface of eccentric chamfer 1 and center, air valve seat ring hole 6, the deviation angle α at eccentric chamfer center 5, the crossing diameter D of eccentric chamfer 1 and cylinder head bottom surface 8, four parameters all can be more selected by the air flue test of cylinder cover for diesel engine 2.Under the situation that X, β, α, D parameter are determined, when the less low aperture of diesel engine intake door 4 lifts, because the Flow area that air forms between intake valve 4 and air valve seat ring 3 is less, the eccentric chamfer 1 at place, 7 apertures, air valve seat ring hole, with intake valve 4 actings in conjunction, the flow direction of meeting forcibly changing air-flow improves air and enters the interior strength of vortex of cylinder of diesel engine, improve only depending on spiral inlet duct to produce the weak vortex phenomenon of air in the cylinder when intake valve 4 hangs down aperture, help fuel oil and Air mixing.Enforcement of the present utility model need not to increase cutter, acquires equipment, only needs in processing air valve seat ring hole 7 simultaneously, and suitably adjustment can realize, thus easy to process, with low cost, and be applicable to polytype motor.
Claims (1)
1. diesel engine list intake valve cylinder head, air valve seat ring is fixedly installed in cylinder of diesel engine and covers, the runner that air forms between intake valve and air valve seat ring enters cylinder, it is characterized in that place, aperture in the air valve seat ring hole of cylinder head bottom surface, process an eccentric chamfer, center, eccentric chamfer misalignment air valve seat ring hole, the offset direction of eccentric chamfer is opposite with the Hand of spiral of cylinder head spiral inlet duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200684529U CN201025150Y (en) | 2007-03-30 | 2007-03-30 | A gas cylinder cover with single air supply valve for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200684529U CN201025150Y (en) | 2007-03-30 | 2007-03-30 | A gas cylinder cover with single air supply valve for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025150Y true CN201025150Y (en) | 2008-02-20 |
Family
ID=39099011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200684529U Expired - Lifetime CN201025150Y (en) | 2007-03-30 | 2007-03-30 | A gas cylinder cover with single air supply valve for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025150Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261273A (en) * | 2010-05-24 | 2011-11-30 | 江苏欧尔特气门有限公司 | R neck spiral polishing air valve |
| CN103362767A (en) * | 2012-03-29 | 2013-10-23 | 三菱电机株式会社 | Fuel supply device |
| CN104791041A (en) * | 2015-05-18 | 2015-07-22 | 夏志清 | Air cylinder cover for automobile engine |
| CN104895638A (en) * | 2015-05-17 | 2015-09-09 | 王华美 | Automobile engine intake valve |
| CN105925885A (en) * | 2015-05-24 | 2016-09-07 | 王华美 | Automobile engine cylinder valve group |
| CN106014673A (en) * | 2016-08-04 | 2016-10-12 | 广西玉柴机器股份有限公司 | Diesel engine cylinder head |
| CN111365140A (en) * | 2018-12-25 | 2020-07-03 | 长城汽车股份有限公司 | Cylinder air inlet structure and internal combustion engine |
| WO2022021730A1 (en) * | 2020-07-31 | 2022-02-03 | 广西玉柴机器股份有限公司 | Engine air intake structure and engine cylinder head |
-
2007
- 2007-03-30 CN CNU2007200684529U patent/CN201025150Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261273A (en) * | 2010-05-24 | 2011-11-30 | 江苏欧尔特气门有限公司 | R neck spiral polishing air valve |
| CN103362767A (en) * | 2012-03-29 | 2013-10-23 | 三菱电机株式会社 | Fuel supply device |
| CN103362767B (en) * | 2012-03-29 | 2015-07-22 | 三菱电机株式会社 | Fuel supply device |
| CN104895638A (en) * | 2015-05-17 | 2015-09-09 | 王华美 | Automobile engine intake valve |
| CN104791041A (en) * | 2015-05-18 | 2015-07-22 | 夏志清 | Air cylinder cover for automobile engine |
| CN104791041B (en) * | 2015-05-18 | 2017-11-21 | 嵊州亿源投资管理有限公司 | A kind of cylinder cover of automobile engine |
| CN105925885A (en) * | 2015-05-24 | 2016-09-07 | 王华美 | Automobile engine cylinder valve group |
| CN106014673A (en) * | 2016-08-04 | 2016-10-12 | 广西玉柴机器股份有限公司 | Diesel engine cylinder head |
| CN111365140A (en) * | 2018-12-25 | 2020-07-03 | 长城汽车股份有限公司 | Cylinder air inlet structure and internal combustion engine |
| WO2022021730A1 (en) * | 2020-07-31 | 2022-02-03 | 广西玉柴机器股份有限公司 | Engine air intake structure and engine cylinder head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080220 |