CN2828344Y - Cylinder head of four-valve diesel engine - Google Patents
Cylinder head of four-valve diesel engine Download PDFInfo
- Publication number
- CN2828344Y CN2828344Y CN 200520031174 CN200520031174U CN2828344Y CN 2828344 Y CN2828344 Y CN 2828344Y CN 200520031174 CN200520031174 CN 200520031174 CN 200520031174 U CN200520031174 U CN 200520031174U CN 2828344 Y CN2828344 Y CN 2828344Y
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- valve
- cylinder
- cylinder head
- oil sprayer
- diesel engine
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Abstract
The utility model relates to a four-valve cylinder head, which belongs to the technical field of an internal combustion engine. The four-valve cylinder head is mainly composed of a cylinder head body, inlet valves, exhaust valves, an oil sprayer, valve seat rings, valve guide pipes, a liner of the oil sprayer, and other parts, wherein the installing position of the oil sprayer is perpendicular to the center of a combustion chamber of a cylinder; the valve uses two air inlet structures and two exhaust structures, and through reasonably organizing the air inlet and air exhaust, formed quality of the mixed air can be increased and the purpose of optimizing the combustion can be obtained. Accordingly, exhaust emission is caused to be further optimized, and simultaneously, power of the diesel engine is caused to be correspondingly increased.
Description
(1) technical field:
The utility model belongs to field of internal combustion engine, relates to a kind of Four-valve diesel engine cylinder head of.
(2) background technique:
The combustion system of the multi-cylinder diesel engine of China's production at present adopts direct injection combustion system more and more, and the design of cylinder head is one of key technology wherein.The combustion performance and the cylinder head of direct injection combustion system is enterprising, exhaust valve position, oil sprayer position have very strong relevance, and particularly the spatial position of oil sprayer shaft axis on cylinder cap is especially crucial.Two present valve cylinder head are owing to its structural limitations, and oil sprayer must be in tilted layout, and makes the shaft axis of oil sprayer and the intersection point of cylinder head bottom plane depart from cylinder axis, has strengthened the difficulty of oily bundle and air mixing.In addition, the raising of two valve cylinder head charging efficiencies is subjected to the restriction that a cylinder has only an intake valve, an exhaust valve, makes the combustion performance of existing diesel be subjected to certain influence, can't satisfy the national environmental protection rules of increasingly stringent.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of low emission Four-valve diesel engine cylinder head of rational in infrastructure.
The technical solution of the utility model is: Four-valve diesel engine cylinder head of is installed in the diesel-engine body top, is made up of parts such as cylinder lid, intake valve, exhaust valve, valve guide bushing, air valve seat ring, oil sprayer bushings.The intake valve center is 25.5mm～27.5mm with respect to the perpendicular distance B at cylinder lid upper cylinder center, horizontal equivalent C is 27mm～29mm, the exhaust valve center is 27.5mm～29.5mm with respect to the perpendicular distance D at cylinder lid upper cylinder center, and horizontal equivalent E is 27mm～29mm; High pressure connecting rod mounting hole parallel axes is in cylinder lid bottom plane, it is 90mm～92mm apart from F, the angle α of its vertical coordinate line is 16 °～20 °, is installed into each 2 of valve and exhaust valves on the cylinder lid in the valve guide hole, is equipped with on the cylinder lid to be used for fixing oil sprayer bushing.
The oil sprayer bushing shaft axis is perpendicular to cylinder lid bottom plane, and its intersection point is positioned at cylinder axis; Head oil nozzle mounting hole external diameter φ W is φ 11mm～φ 13mm, and internal diameter φ V is φ 7mm～φ 9mm; The external diameter φ U of retaining lip is φ 12mm～φ 14mm, and width T is 4mm～6mm; Oil sprayer bushing major part segment length L is 48mm～49mm, and total length Y is 63mm～65mm.
Valve guide bushing internal diameter φ M1 is φ 8mm～φ 10mm on the cylinder lid, and external diameter φ M2 is φ 14mm～φ 16mm, and the conduit upper-end surface is 13.5mm～15.5mm to the valve spring supporting plane apart from Z1, and valve guide bushing total length Z is 86.5mm～87.5mm.
Air valve seat ring is a hollow ring, and top Circularhole diameter φ A is φ 33mm～φ 35mm, and lower cone table top subtended angle β is 118 °～122 °; The gauge size φ P of air valve seat ring is φ 37mm～φ 39mm, and inlet valve seat ring gauge measuring position is 3.5mm～4.5mm to the cylinder head bottom plane apart from J; Exhaust valve seat insert gauge measuring position is 4mm～5mm to the cylinder head bottom plane apart from K.
The utility model can reach following beneficial effect: compare with two valves, adopt four valve gas handling systems, can make the valve circulation area increase about 50%, ventilation merit or pumping loss are reduced, charging efficiency improves, and can more effectively organize the oil gas mixing and burning.The oil sprayer of four-valve diesel engine can be arranged vertically and make firing chamber and cylinder concentric, and the air current flow in the firing chamber is obviously even than the biasing firing chamber.Because oil sprayer and firing chamber center arrangement, valve circulation area increase, and make four valve DI Diesel Engine have superior torque characteristics and emission performance.Even use identical fuel injection system, in standard cycle test, four-valve diesel engine is keeping under the equal power with two valve diesel, and discharging and oil consumption have tangible reduction.
(4) description of drawings:
Fig. 1 is the utility model structure cut-away view;
Fig. 2 is the utility model intake valve, exhaust valve, the relative cylinder axis position view of mounting hole of oil sprayer;
Fig. 3 is the angle schematic representation of the utility model high pressure connecting rod mounting hole and cylinder head vertical coordinate line;
Fig. 4 installs feature and high pressure connecting rod position of mounting hole schematic representation for the utility model oil sprayer bushing;
Fig. 5 is that the utility model valve guide bushing, air valve seat ring are installed the feature schematic representation;
(5) embodiment:
The utility model is made up of parts such as cylinder lid 1, intake valve 2, exhaust valve 3, valve guide bushing 4, air valve seat ring 5, oil sprayer bushings 6, is installed in the diesel-engine body top.Valve guide bushing 4 and air valve seat ring 5 are pressed in the valve guide bushing and air valve seat ring mounting hole on the cylinder head 1, guarantee valve guide bushing 4 the gentle cylinder body 1 in upper-end surface the spring supporting plane be 13.5mm～15.5mm apart from Z1; Air valve seat ring 5 is 118 °～122 ° being pressed into cylinder lid 1 back component processing lower cone table top subtended angle β, the gauge size φ P of air valve seat ring is φ 37mm～φ 39mm, and inlet valve seat ring gauge measuring position is 3.5mm～4.5mm to the cylinder head bottom plane apart from J; Exhaust valve seat insert gauge measuring position is 4mm～5mm to the cylinder head bottom plane apart from K.。Oil sprayer bushing 6 is pressed in the oil sprayer bushing hole on the cylinder lid 1, oil sprayer bushing oil nozzle mounting hole is processed again, and forms the retaining lip, and the external diameter φ U of retaining lip is φ 12mm～φ 14mm, and width T is 4mm～6mm.Intake valve 2, exhaust valve 3 are respectively charged in the corresponding valve guide hole, as shown in Figure 1.During work, intake valve 2 is opened the beginning air inlets, and air inlet end of a period oil sprayer sprays into the fuel combustion work done that gives off energy to the firing chamber, and work done end of a period exhaust valve 3 is opened exhausts, successively circulation.
Claims (4)
1, a kind of Four-valve diesel engine cylinder head of is installed in the diesel-engine body top, is made up of cylinder lid (1), intake valve (2), exhaust valve (3), air valve seat ring (5), valve guide bushing (4), oil sprayer bushing parts such as (6); It is characterized in that: intake valve (2) center is 25.5mm～27.5mm with respect to the perpendicular distance B at cylinder lid (1) upper cylinder center, horizontal equivalent C is 27mm～29mm, exhaust valve (3) center is 27.5mm～29.5mm with respect to the perpendicular distance D at cylinder lid (1) upper cylinder center, and horizontal equivalent E is 27mm～29mm; High pressure connecting rod mounting hole parallel axes is in cylinder lid (1) bottom plane, it is 90mm～92mm apart from F, the angle α of its vertical coordinate line is 16 °～20 °, cylinder lid (1) is gone up and to be installed into respectively 2 of valve (2) and exhaust valves (3) in the valve guide hole, is equipped with on the cylinder lid (1) to be used for fixing oil sprayer bushing (6).
2, Four-valve diesel engine cylinder head of according to claim 1 is characterized in that: oil sprayer bushing (6) shaft axis is perpendicular to cylinder lid (1) bottom plane, and its intersection point is positioned at cylinder axis; Head oil nozzle mounting hole external diameter φ W is φ 11mm～φ 13mm, and internal diameter φ V is φ 7mm～φ 9mm; The external diameter φ U of retaining lip is φ 12mm～φ 14mm, and width T is 4mm～6mm; Oil sprayer bushing (6) major part segment length L is 48mm～49mm, and total length Y is 63mm～65mm.
3, Four-valve diesel engine cylinder head of according to claim 1, it is characterized in that: it is φ 8mm～φ 10mm that cylinder lid (1) is gone up valve guide bushing (4) internal diameter φ M1, external diameter φ M2 is φ 14mm～φ 16mm, the conduit upper-end surface is 13.5mm～15.5mm to the valve spring supporting plane apart from Z1, and valve guide bushing total length Z is 86.5mm～87.5mm.
4, Four-valve diesel engine cylinder head of according to claim 1 is characterized in that: air valve seat ring (5) is a hollow ring, and top Circularhole diameter φ A is φ 33mm～φ 35mm, and lower cone table top subtended angle β is 118 °～122 °; The gauge size φ P of air valve seat ring is φ 37mm～φ 39mm, and inlet valve seat ring gauge measuring position is 3.5mm～4.5mm to the cylinder head bottom plane apart from J; Exhaust valve seat insert gauge measuring position is 4mm～5mm to the cylinder head bottom plane apart from K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031174 CN2828344Y (en) | 2005-07-07 | 2005-07-07 | Cylinder head of four-valve diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031174 CN2828344Y (en) | 2005-07-07 | 2005-07-07 | Cylinder head of four-valve diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828344Y true CN2828344Y (en) | 2006-10-18 |
Family
ID=37079901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031174 Expired - Lifetime CN2828344Y (en) | 2005-07-07 | 2005-07-07 | Cylinder head of four-valve diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828344Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562353A (en) * | 2012-03-08 | 2012-07-11 | 重庆三华工业有限公司 | Integrated aluminum alloy tank |
| CN113404613A (en) * | 2021-08-19 | 2021-09-17 | 潍柴动力股份有限公司 | Cylinder head and gas engine |
-
2005
- 2005-07-07 CN CN 200520031174 patent/CN2828344Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562353A (en) * | 2012-03-08 | 2012-07-11 | 重庆三华工业有限公司 | Integrated aluminum alloy tank |
| CN102562353B (en) * | 2012-03-08 | 2015-10-28 | 重庆三华工业有限公司 | Integrated aluminum alloy tank |
| CN113404613A (en) * | 2021-08-19 | 2021-09-17 | 潍柴动力股份有限公司 | Cylinder head and gas engine |
| CN113404613B (en) * | 2021-08-19 | 2021-12-17 | 潍柴动力股份有限公司 | Cylinder head and gas engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: YTO (Luoyang) Diesel Engine Co., Ltd. Assignor: China Yituo Group Co., Ltd. Contract fulfillment period: 2007.3.21 to 2013.3.21 Contract record no.: 2008410000076 Denomination of utility model: Method and device for designing forward exhaust duct model for four-valve diesel engine cylinder head Granted publication date: 20061018 License type: Exclusive license Record date: 20081124 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.3.21 TO 2013.3.21; CHANGE OF CONTRACT Name of requester: YTO (LUOYANG) DIESEL ENGINE CO., LTD. Effective date: 20081124 |
|
| ASS | Succession or assignment of patent right |
Owner name: FIRST TRACTOR CO., LTD. Free format text: FORMER OWNER: CHINA YITUO GROUP CO., LTD. Effective date: 20110725 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 471039 NO. 39, XIYUAN ROAD, JIANXI DISTRICT, LUOYANG CITY, HE NAN PROVINCE TO: 471004 NO. 154, JIANSHE ROAD, JIANXI DISTRICT, LUOYANG CITY, HE NAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110725 Address after: 471004 Jianshe Road, Jianxi, Henan, No. 154, Patentee after: First Tractor Co., Ltd. Address before: 471039 No. 39, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee before: China Yituo Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150707 Granted publication date: 20061018 |
|
| EXPY | Termination of patent right or utility model |