CN201025149Y - A gas cylinder cover of gasoline engine - Google Patents
A gas cylinder cover of gasoline engine Download PDFInfo
- Publication number
- CN201025149Y CN201025149Y CNU2007200349412U CN200720034941U CN201025149Y CN 201025149 Y CN201025149 Y CN 201025149Y CN U2007200349412 U CNU2007200349412 U CN U2007200349412U CN 200720034941 U CN200720034941 U CN 200720034941U CN 201025149 Y CN201025149 Y CN 201025149Y
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- China
- Prior art keywords
- egr
- cylinder head
- cylinder
- cylinder cover
- passage
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- 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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- Exhaust-Gas Circulating Devices (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a cylinder cover for the gasoline engine which comprises a cylinder cover main body and an EGR passage; the left side of the gas inlet passage is provided with a tangent gas passage and the right side is provided with a medium gas passage; the EGR passage is positioned between the back end of the cylinder cover and the water sleeve; one end of the EGR passage is connected with the gas passage of the cylinder cover and the other end is connected into the gas inlet flange; the cylinder cover is provided with an EGR lead hole in the gas inlet side; the cylinder cover is provided with an EGR distribution passage in the gas inlet side which is connected with the EGR lead hole; each cylinder is provided with an EGR distribution hole in the tangent gas passage which is connected with the EGR distribution passage; the cylinder cover is provided with a transverse and four vertical lubricant passages; wherein two vertical lubricant passages are arrayed along the edge of the cylinder cover; and the other two vertical lubricant passages are positioned in the middle of the cylinder cover. The utility model can meet the demands of the machine of high heat efficiency, low oil consumption, low discharge and low cost.
Description
Technical field
The utility model relates to a kind of gasoline engine part, is specifically related to a kind of petrolic cylinder head assembly.
Background technique
The advance of current motor how, is embodied in the combustion case in gas distribution system and the firing chamber to a great extent.The ventilation ability of two valve cylinder heads, simultaneously because the insufficient exhaust index that causes of burning is low, and oil consumption is bigger.Along with the progress and the development of society, save and people's attention is more and more received in environmental protection, so the Economy of motor and emission performance have just become the primary factor of engine evaluated quality.In the later stage nineties, begin to widely apply 4 valves, Dual Over Head Camshaft in the world, spark plug substitutes above-mentioned technology in the cylinder cap technology of firing chamber center arrangement, and this type of cylinder cap technology makes the Economy of motor and power character all have progressive significantly.But at present society has reached unprecedented height to energy-conservation and attention environmental protection, and along with skyrocketing and the restriction of national policy of fuel price, it is imperative to develop the motor that more will save with environmental protection.
For oil consumption and the discharging that reduces motor greatly, the technology of a series of energy-conserving and environment-protective begins to be applied on the motor on nearly 2 years international markets.Wherein CBR (controlled burning speed) technology is set about from the internal-combustion that improves motor by to the optimization of cylinder cap air flue and the introducing of EGR, can use more EGR to lead, thereby reduces engine consumption and discharging.The cylinder cap of utilization CBR technology is compact not enough on arranging usually at present, and the EGR The Application of Technology is perfect not enough, makes that CBR cylinder cap cost is higher, falls the oil consumption function and also fails farthest to embody.
The model utility content
The purpose of this utility model is that the motor for discharge capacity 2.0-2.4L provides a high-caliber cylinder head, satisfies the high and low oil consumption of the complete machine thermal efficiency, low emission, requirement cheaply.
The utility model is achieved through the following technical solutions:
A kind of cylinder head of petrol engine, include cylinder head body and EGR passage, a tangential air flue is arranged in every cylinder intake duct left side, a neutral air flue is arranged on its right side, described EGR channel arrangement is between the water jacket of cylinder head rear end, EGR passage one end communicates with cylinder cap one air outlet flue, and the other end leads to cylinder cap inlet flange face; Cylinder head air inlet side is furnished with the EGR introduction hole, and cylinder head air inlet side is crossed an EGR distribution duct, communicates with the EGR introduction hole, and every cylinder tangential air flue is arranged an EGR dispensing orifice, communicates with the EGR distribution duct.
A kind of cylinder head of petrol engine has been arranged horizontal, four vertical oil leabs on the cylinder head, wherein two vertical oil leabs arrange that by the cylinder cap edge other two vertical oil leabs are arranged in the cylinder cap center.
A kind of cylinder head of petrol engine, cylinder head valve port place press-fits the thin-walled air valve seat ring, inlet valve seat ring wall thickness 1.8mm～2.8mm, exhaust valve seat insert wall thickness 2mm～4mm.
A kind of cylinder head of petrol engine, cylinder head valve port place press-fits the thin-walled air valve seat ring, and inlet valve seat ring wall thickness the best is 2.25mm, and exhaust valve seat insert wall thickness the best is 3mm.
A kind of cylinder head of petrol engine, intake valve throat diameter 28mm～36mm, exhaust valve throat diameter 24mm～30mm.
A kind of cylinder head of petrol engine, intake valve throat diameter the best is 32mm, exhaust valve throat diameter the best is 27mm.
The utility model is at cylinder cap rear end water jacket intermediate arrangement EGR passage, make exhaust flow in the EGR passage enters the process of the EGR valve that is arranged on the suction tude, obtain the abundant cooling of cylinder head cooling water, thereby remove the cooler for recycled exhaust gas device of more complicated from, arrange compactlyer, cost is lower.Waste gas after the EGR valve is handled enters EGR distribution duct in the cylinder head by the EGR introduction hole, and the EGR distribution duct is assigned to every cylinder tangential air flue with the waste gas that enters through 4 EGR dispensing orifices and participates in burning, thereby reduces engine consumption and discharging.Horizontal, four vertical oil leabs have also been arranged on the cylinder cap, the lubricant oil that comes from the body main oil gallery is guided into each kinematic pair, wherein two are arranged as the camshaft bearing hole lubricant oil are provided by the cylinder cap edge, and other two are arranged in the cylinder cap center and provide lubricant oil for the lash adjuster hole.Inlet valve seat ring and exhaust valve seat insert all adopt the thin-walled air valve seat ring, thickness is respectively 2.25mm and 3mm, improved intake and exhaust doorway diameter to a greater extent, make the intake valve throat diameter reach 32mm, the exhaust valve throat diameter reaches 27mm, thereby the inlet flow area is increased, and flow resistance reduces, therefore charging efficiency improves greatly, and pumping loss reduces.
Description of drawings
Fig. 1 is a worm's eye view of the present utility model.
Fig. 2 is an air inlet side view of the present utility model.
Fig. 3 is vertical view of the present utility model.
Fig. 4 is a water jacket sectional view of the present utility model.
Fig. 5 is an EGR passage sectional view of the present utility model.
Embodiment
Shown in accompanying drawing 1,2,3,4,5.
A kind of cylinder head of petrol engine includes oil duct 4, exhaust cam axis hole 5, intake cam axis hole 9, hydraulic tappet hole 6, spark-plug hole 14 on water hole 3, the cylinder cap on cylinder head body, exhaust valve port 1, inlet valve port 2, the cylinder cap.A tangential air flue 15 is arranged in every cylinder intake duct left side, and a neutral air flue 16 is arranged on its right side, and EGR passage 17 is arranged between the water jacket of cylinder head rear end, and EGR passage 17 1 ends communicate with cylinder cap one air outlet flue, and the other end leads to cylinder cap inlet flange face; Cylinder head air inlet side is furnished with EGR introduction hole 18, and cylinder head air inlet side is crossed an EGR distribution duct 19, communicates with EGR introduction hole 18, and every cylinder tangential air flue is arranged an EGR dispensing orifice 20, communicates with EGR distribution duct 19.Arranged on the cylinder head one laterally, four vertical oil leabs are respectively 10,11,12,13, wherein two vertical oil leabs arrange that by the cylinder cap edge other two vertical oil leabs are arranged in the cylinder cap center.Cylinder head valve port place press-fits the thin-walled air valve seat ring, inlet valve seat ring 22 wall thickness 2.25mm, exhaust valve seat insert 21 wall thickness 3mm.Intake valve aditus laryngis 8 diameter 32mm, exhaust valve aditus laryngis 7 diameter 27mm.
The utility model is at cylinder cap rear end water jacket intermediate arrangement EGR passage 17, make exhaust flow in EGR passage 17 enters the process of the EGR valve that is arranged on the suction tude, obtain the abundant cooling of cylinder head cooling water, thereby remove the cooler for recycled exhaust gas device of more complicated from, arrange compactlyer, cost is lower.Waste gas after the EGR valve is handled enters EGR distribution duct 19 in the cylinder head by EGR introduction hole 18, and EGR distribution duct 19 is assigned to every cylinder tangential air flue with the waste gas that enters through 4 EGR dispensing orifices 20 and participates in burning, thereby reduces engine consumption and discharging.Inlet valve seat ring 22 and exhaust valve seat insert 21 all adopt the thin-walled air valve seat ring, thickness is respectively 2.25mm and 3mm, improved intake and exhaust doorway diameter to a greater extent, make intake valve aditus laryngis 8 diameters reach 32mm, exhaust valve aditus laryngis 7 diameters reach 27mm, thereby the inlet flow area is increased, and flow resistance reduces, therefore charging efficiency improves greatly, and pumping loss reduces.
Claims (6)
1. the cylinder head of a petrol engine, include cylinder head body and EGR passage, a tangential air flue is arranged in every cylinder intake duct left side, a neutral air flue is arranged on its right side, it is characterized in that described EGR channel arrangement is between the water jacket of cylinder head rear end, EGR passage one end communicates with cylinder cap one air outlet flue, and the other end leads to cylinder cap inlet flange face; Cylinder head air inlet side is furnished with the EGR introduction hole, and cylinder head air inlet side is crossed an EGR distribution duct, communicates with the EGR introduction hole, and every cylinder tangential air flue is arranged an EGR dispensing orifice, communicates with the EGR distribution duct.
2. the cylinder head of a kind of petrol engine according to claim 1, it is characterized in that having arranged on the cylinder head horizontal, four vertical oil leabs, wherein two vertical oil leabs arrange that by the cylinder cap edge other two vertical oil leabs are arranged in the cylinder cap center.
3. the cylinder head of a kind of petrol engine according to claim 1 is characterized in that cylinder head valve port place press-fits the thin-walled air valve seat ring, inlet valve seat ring wall thickness 1.8mm～2.8mm, exhaust valve seat insert wall thickness 2mm～4mm.
4. the cylinder head of a kind of petrol engine according to claim 3 is characterized in that cylinder head valve port place press-fits the thin-walled air valve seat ring, inlet valve seat ring wall thickness 2.25mm, exhaust valve seat insert wall thickness 3mm.
5. the cylinder head of a kind of petrol engine according to claim 1 is characterized in that described intake valve throat diameter 28mm～36mm, exhaust valve throat diameter 24mm～30mm.
6. the cylinder head of a kind of petrol engine according to claim 5 is characterized in that described intake valve throat diameter 32mm, exhaust valve throat diameter 27mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349412U CN201025149Y (en) | 2007-03-02 | 2007-03-02 | A gas cylinder cover of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349412U CN201025149Y (en) | 2007-03-02 | 2007-03-02 | A gas cylinder cover of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025149Y true CN201025149Y (en) | 2008-02-20 |
Family
ID=39099010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200349412U Expired - Lifetime CN201025149Y (en) | 2007-03-02 | 2007-03-02 | A gas cylinder cover of gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025149Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606348A (en) * | 2012-03-29 | 2012-07-25 | 奇瑞汽车股份有限公司 | Compact EGR (exhaust gas recirculation) channel structure |
| CN103485922A (en) * | 2013-09-23 | 2014-01-01 | 安徽江淮汽车股份有限公司 | Engine cylinder cover air channel structure |
| CN106996345A (en) * | 2017-05-24 | 2017-08-01 | 安徽江淮汽车集团股份有限公司 | A kind of cylinder cap with EGR functions |
| CN107218149A (en) * | 2017-05-24 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | A kind of cylinder cap assembly with EGR functions |
| WO2018146413A1 (en) * | 2017-02-07 | 2018-08-16 | Renault S.A.S | Cylinder head comprising an exhaust gas injection assembly |
| WO2020062737A1 (en) * | 2018-09-26 | 2020-04-02 | 广州汽车集团股份有限公司 | Gasoline engine and combustion control method therefor |
-
2007
- 2007-03-02 CN CNU2007200349412U patent/CN201025149Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606348A (en) * | 2012-03-29 | 2012-07-25 | 奇瑞汽车股份有限公司 | Compact EGR (exhaust gas recirculation) channel structure |
| CN103485922A (en) * | 2013-09-23 | 2014-01-01 | 安徽江淮汽车股份有限公司 | Engine cylinder cover air channel structure |
| WO2018146413A1 (en) * | 2017-02-07 | 2018-08-16 | Renault S.A.S | Cylinder head comprising an exhaust gas injection assembly |
| CN106996345A (en) * | 2017-05-24 | 2017-08-01 | 安徽江淮汽车集团股份有限公司 | A kind of cylinder cap with EGR functions |
| CN107218149A (en) * | 2017-05-24 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | A kind of cylinder cap assembly with EGR functions |
| WO2020062737A1 (en) * | 2018-09-26 | 2020-04-02 | 广州汽车集团股份有限公司 | Gasoline engine and combustion control method therefor |
| CN110953096A (en) * | 2018-09-26 | 2020-04-03 | 广州汽车集团股份有限公司 | Gasoline engine and combustion control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230051 East Road No. 176 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080220 |