CN1662736A - Cylinder head of a reciprocating internal combustion engine - Google Patents
Cylinder head of a reciprocating internal combustion engine Download PDFInfo
- Publication number
- CN1662736A CN1662736A CN038139413A CN03813941A CN1662736A CN 1662736 A CN1662736 A CN 1662736A CN 038139413 A CN038139413 A CN 038139413A CN 03813941 A CN03813941 A CN 03813941A CN 1662736 A CN1662736 A CN 1662736A
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- framework
- bar axle
- combustion engine
- axle
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
Abstract
The invention relates to a rocker arm frame for a cylinder head of an internal combustion engine, which is mounted on a bottom part of the cylinder head and on which a cylinder head cap is placed. Said rocker arm frame supports rocker shafts comprising rocker arms and extends across the entire cylinder head as a single piece.
Description
Technical field
The present invention relates to a kind of cylinder head of internal-combustion reciprocating-pisto, described cylinder head has the feature of the preamble of claim 1.
Background technique
DE195 04 637 C2 disclose a kind of cylinder head of internal-combustion engine, and described cylinder head has a device that is used to support a camshaft and an inclination angle adjustment lever (tilting lever) axle.Described device is assembled in the position at the about center of cylinder head upside, and extends to last cylinder from first cylinder.A valve mechanism cover is covered with described device, and is connected to cylinder head in a kind of mode of sealing moulding.Described device is a narrow member, only is equipped with the inclination angle and adjusts lever bar axle and camshaft.
Summary of the invention
In view of the foregoing, the objective of the invention is to obtain a kind of cylinder head, described cylinder head has a kind of be used to the to support axle of a gas exchange controller and/or the device of bar axle, and described device is firm in essence, can reinforce cylinder head, and assembling easily.
This purpose is done by a kind of cylinder head with feature of claim 1.
Cylinder head according to the present invention is by a cylinder head bottom, and valve mechanism cover and one are used to support the device of a camshaft and/or inclination angle adjusting lever shaft and form.This device is presented as a framework, and is assembled on the cylinder head bottom.Around preventing that oil is lost to, a kind of Sealing, for example a kind of liquid sealant is inserted between framework and the cylinder head bottom.Cylinder head with framework utilizes valve mechanism cover and top to isolate, and described valve mechanism cover also is provided with a Sealing, and is assembled on the framework.In the result who is supported on the large size on the cylinder head, framework is very firm in essence as framework, and as the result who is arrived the cylinder head bottom by bolt, frame strengthening entire cylinder lid arrangement.Bar axle and/or axle can be advanced framework by preassembly individually, and this has simplified the production process on the production line.
In to a kind of improvement of the present invention, when cylinder head was embodied as a single cylinder head, the multiple arrangement that is used to support an axle and/or a bar axle was formed on each adjacent cylinder head as an one-piece frame.Like this, each cylinder head connects by its upside by means of firm framework, and the entire cylinder lid arrangement also becomes firmer.Compare with a plurality of independent framework on being assembled in a single cylinder head separately, further advantage is, the assembling of common components is obviously simpler, and described common components is assembled on the single cylinder head of an exhaust casing in the preassembly mode.
In to further improvement of the present invention, a bar axle is embodied as an inclination angle and adjusts lever bar axle or brake rod (drag lever) bar axle, and top, described bar axle cylinder head bottom is assembled in the framework.In an embodiment of internal-combustion engine, the motion of tappet is generally adjusted lever by the inclination angle and is deflected, and described internal-combustion engine has the lower cam axle of a startup tappet, and has gas exchange valve in cylinder head.These inclination angles adjustment levers rotate on a bar axle or tilt, and described bar axle is supported on according to the present invention in the framework, and described framework is assembled on the cylinder head bottom.
In to further improvement of the present invention, described framework has a mechanism that is used for lubricant oil is fed to the gas exchange controller component.By prefabricated in the framework, pipeline or pipe casting or bore hole, can realize point that lubricant oil is supplied in the valve driver to remain to be lubricated at an easy rate, for example lever or brake rod are adjusted in the inclination angle, hydrovalve-gap-compensating element or hydraulic starting conversion element are so that influence the control time.When flow of lubricant is assigned with in framework, for the cylinder head bottom of a cover cylinder head design or the design of single cylinder head, makes simpler, thereby more cost saving is possible because an oil transmission point to framework only need be provided.
In to further improvement of the present invention, described framework has a mechanism that is used to control the engine brake valve.When internal-combustion engine is used on the utility vehicle, motor is equipped with an engine brake usually, each cylinder that is internal-combustion engine all has a valve of opening too early, for example at the end of compression stroke, thereby the compression work of consumption in internal-combustion engine is as useless the distributing of Hot air quilt, thereby internal-combustion engine and vehicle are braked.A kind of like this valve for example in a kind of direct mode by hydraulic starting, perhaps a kind of mechanical device of this valve that starts is by hydraulic starting.About this point, according to the present invention, hydraulic pressure and necessary supply line are integrated in the framework of top, cylinder head bottom.These pipelines or pipe are cast in framework or moulding.When these pipelines or pipe were integrated into framework, assembling consumed and can be simplified significantly.Integrate in the pipeline at one, the seal point on the pipe joint has been save, and the manufacturing of described seal point and sealing are expensive.
In to further improvement of the present invention, a fuel low pressure line is integrated into framework.By a fuel low pressure line is integrated into framework, assembly fee is used and is further reduced.In addition, because have only a fuel conduit must be sent to cylinder head, and because occur in framework inside for the distribution of single cylinder fuel sparger, therefore, the structural complexity that has only a suitable low degree is essential, and in the fuel system particularly the risk in the leakage at pipe joint place be lowered.This integration fuel conduit can be used as the fuel following current or fuel refluxes, and perhaps in a kind of compound mode, can be used as fuel following current and backflow.
In to further improvement of the present invention, framework has the connector that is used for fuel injector.By directly fuel injector being fixed on the framework with screw thread, avoided needing an additional fuel conduit, and fuel injector is firm, and the securing means that does not need to add just can be connected to cylinder head.Like this, can obtain the device of a kind of fixedly sparger and fuel supplying, described device is very reliable in assembling and operating aspect.
In to further improvement of the present invention, one is used to control the pressure duct that fuel sprays and is integrated into framework.If fuel injector is not to be started by a camshaft by lever or similar conveying element, but with oil for example high pressure oil start, the so this pressure duct of oil that is applicable to advantageously is incorporated into framework, thereby prevents that pressure duct is mixed between erecting stage.
In to further improvement of the present invention, described framework has the mechanism that a cooling system that is used to make internal-combustion engine ventilates.In an embodiment of internal-combustion engine with single cylinder head, one is positioned at single cylinder head top, framework with a ventilation plant is particularly advantageous, because the continuous water core that passes through all cylinders (watercore) of single cylinder head neither one.Therefore, each single cylinder head must have a device that cooling system is ventilated at its peak apart from ground,, has the port of pipeline that is, for example leads to the cooling unit equalizing reservoir.In an embodiment with the framework that covers all cylinders, advantageously, a flooding point is provided for each single cylinder head, described flooding point is applicable to leads to the freezing mixture in the coolant pipe in the framework.Because framework is generally taked a position higher than cylinder head bottom apart from ground, therefore, only a ventilation plant need be set in the coolant hose in framework.Like this, being used for making part that the cylinder head cooling system ventilates and assembly fee to use is significantly reduced.Simultaneously, because pipeline and pipe joint are still less, so reliability of operation greatly is improved.
In to further improvement of the present invention, the bearing of bar axle is presented as a sleeve type bearing.In an embodiment of the bearing of adjusting lever bar axle or camshaft as the inclination angle of sleeve type bearing, framework has kept its stiffness, and bearing door (bearing gate) can easily be made.In an embodiment with bearing cap, framework will lose stiffness, and is making and during the Assembly rail axle, the cost of bearing door can be higher.
Description of drawings
Further the combination of feature and feature will reveal from following description and accompanying drawing.Specific embodiment of the present invention is in the accompanying drawings in a simplified manner by diagram, and explained in more detail in the following description, wherein:
Fig. 1 is the perspective view according to a framework of the present invention, and described framework is used to support according to the inclination angle of a cylinder head of the present invention adjusts lever bar axle, and
Fig. 2 is the perspective view of Fig. 1 middle frame, and described framework has the inclination angle that is inserted into and adjusts lever and inclination angle adjustment lever bar axle.
Embodiment
Fig. 1 is the perspective view according to a framework 1 of the present invention, and described framework is used for adjusting lever bar axle at a plurality of each cylinder head (not shown) upper support inclination angles of a multi cylinder reciprocating-piston engine.Framework 1 is covered with a plurality of Indivudual cylinder lid (not shown)s, and on described cylinder head, framework 1 passes through screw in the position of tapped hole 2.In order to carry out diagram better, framework 1 is displayed on two planes 3 between the cylinder with localized forms.This of framework shown in Figure 1 is local to be divided three cylinder head tasking reciprocating-piston engine, and therefore is divided into three frame part A, B, C.
Framework 1 comprises two outer walls 4 ', 4 in the longitudinal side ", described outer wall is connected to two planes 3 between the cylinder separately by transverse web 5.Tapped hole 2 is arranged at these transverse web with the bearing 6 that is used for inclination angle adjustment lever bar axle, and described inclination angle is adjusted lever bar axle and only represented by their central axis M.
The central axis M of inclination angle adjustment lever bar axle (not shown) extends across the whole length of framework in any side of framework 1.Framework 1 also has a base 7, and described base is stiffening frame additionally, and described base is partly blocked, thereby allows passage 8 to be suitable for valve control unit (not shown), tappet for example, and lever and valve are adjusted in the inclination angle.Base 7 is positioned at the upside of cylinder head (not shown), and is sealed with respect to the outside by a kind of liquid sealant or a kind of formation of sealing component (form seal), and described liquid sealant or mould sealing are arranged between base and the cylinder head.
In an outer wall 4 ' of longitudinal side, a fuel following current pipe 9 and a fuel return pipe 9 ' extend across whole length, described following current pipe and reflow pipe and be used for connector 10 fluid flow communications of fuel injector (not shown).In this way, there is no need to assemble the independent fuel conduit that leads to each fuel injector, this just allows fuel circulating system with a kind of simpler, more saves cost, and more reliable mode is implemented in operation, and this mode is also more favourable aspect assembling.Identical mode is applied in hydraulic pipe line 11, and 11 ', described pipeline is incorporated in the framework 1, and is used to the additional hydraulic starting valve of ato unit break.
The lubricating point of valve driver (not shown) is supplied by a lubricating oil pipeline 12 in the transverse web 5.
In an outer wall 4 ' of longitudinal side, a high-pressure oil pipe that is integrated 13 extends across whole length, and described high-pressure oil pipe is used to high pressure oil is fed to that hydraulic pressure supports, the fuel injector of power start.
The valve mechanism cover (not shown) is positioned on the last junction surface 14 of framework, around a sealing between valve mechanism cover and the framework prevents from outwards to be leaked to.
One is used for making pipe 15 that cooling system ventilates at longitudinal side outer wall 4 " extend across the whole length of framework, thereby described pipe each cylinder all with the peak fluid flow communication apart from ground of the water space of cylinder head entire cylinder.Like this, for cover cylinder head and an embodiment who has single cylinder head, can obtain a kind of reliably, and simple especially, and the method that being used for of cost saving ventilated the internal-combustion engine cooling system of cylinder head, described method is favourable aspect assembling.
Fig. 2 has shown the framework 1 among Fig. 1 with perspective view, and described framework is in the pattern of part assembling, and has inclination angle adjustment lever bar axle 16 and inclination angle adjustment lever 17.A framework 1 quilt like this is preassembly individually, and as a complete unit and under the situation of an additional Sealing, is mounted on the cylinder head.Like this, the preassembly outside the motor assembly apparatus of reality is possible, and this is producing some advantages aspect logistics and the production process.After the framework 1 that is assembled in the part was mounted, the fuel injector (not shown) was connected to connector 10 with screw, and the valve mechanism cover (not shown) is connected to end face 14.
Claims (10)
1. the cylinder head of an internal-combustion reciprocating-pisto has
A cylinder head bottom,
A valve mechanism cover,
One is used to support the axle of gas exchange controller and/or the device of bar axle,
It is characterized in that,
Described device is a framework (1), and described framework is assembled in the cylinder head bottom, and described valve mechanism cover is mounted on the described framework.
2. cylinder head according to claim 1 is characterized in that, multiple arrangement is set on the adjacent single cylinder head of multi-cylinder internal-combustion engine, and described device is presented as an one-piece frame (1).
3. cylinder head according to claim 1 and 2 is characterized in that, the bar axle (16) that is assembled in the described device is presented as inclination angle adjustment lever shaft or brake rod bar axle.
4. according to arbitrary described cylinder head in the claim 1 to 3, it is characterized in that described framework (1) has a device (12) that is used for lubricant oil is supplied to the gas exchange controller component.
5. according to arbitrary described cylinder head in the claim 1 to 4, it is characterized in that described framework (1) has a device that is used to control the valve of engine brake (11,11 ").
6. according to arbitrary described cylinder head in the claim 1 to 5, it is characterized in that fuel low pressure line (9,9 ') is incorporated in the framework (1).
7. according to arbitrary described cylinder head in the claim 1 to 6, it is characterized in that described framework (1) has a connector (10) that is applicable to fuel injector.
8. cylinder head according to claim 7 is characterized in that, is used for controlling the pressure duct (13) that fuel sprays and is incorporated into framework (1).
9. according to arbitrary described cylinder head in the claim 1 to 8, it is characterized in that described framework (1) has a device (15) that is used to make the internal-combustion engine cooling system ventilation.
10. according to arbitrary described cylinder head in the claim 1 to 9, it is characterized in that the bearing (6) of bar axle or axle is the sleeve type bearing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10226688.3 | 2002-06-15 | ||
| DE10226688A DE10226688B4 (en) | 2002-06-15 | 2002-06-15 | Cylinder head of a reciprocating internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1662736A true CN1662736A (en) | 2005-08-31 |
Family
ID=29723181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN038139413A Pending CN1662736A (en) | 2002-06-15 | 2003-04-29 | Cylinder head of a reciprocating internal combustion engine |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1514020B1 (en) |
| JP (1) | JP2005535817A (en) |
| KR (1) | KR20050012272A (en) |
| CN (1) | CN1662736A (en) |
| DE (2) | DE10226688B4 (en) |
| WO (1) | WO2003106832A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005010750A1 (en) * | 2005-03-09 | 2006-09-14 | Schaeffler Kg | Assembly of a valve train of an internal combustion engine |
| DE102005026600B4 (en) * | 2005-06-09 | 2013-08-22 | Man Diesel & Turbo Se | Internal combustion engine |
| DE102007063254A1 (en) * | 2007-12-31 | 2009-07-02 | Mahle International Gmbh | Cylinder head cover |
| DE102012007334A1 (en) * | 2012-04-12 | 2013-10-17 | Neumayer Tekfor Holding Gmbh | Method for producing a camshaft module and corresponding camshaft module |
| KR101675881B1 (en) | 2015-12-24 | 2016-11-14 | 주식회사 엠제이로드텍 | Method for reinforcing the degradation part of concrete structures |
| DE102017004443A1 (en) | 2017-05-09 | 2017-11-23 | Daimler Ag | Arrangement of a sealing element on a rocker arm bearing frame for an internal combustion engine |
| DE102017112858A1 (en) | 2017-06-12 | 2018-12-13 | Man Truck & Bus Ag | Device for air guidance with cooling chamber ventilation for an internal combustion engine |
| CN109996947B (en) | 2018-10-29 | 2021-01-29 | 株式会社小松制作所 | Cylinder head |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3672338A (en) * | 1968-12-27 | 1972-06-27 | Isuzu Motors Ltd | Internal combustion engine with overhead valve mechanism |
| JPS60192812A (en) * | 1984-03-15 | 1985-10-01 | Yamaha Motor Co Ltd | Valve operating mechanism in internal-conbustion engine |
| DE3428626A1 (en) * | 1984-08-03 | 1986-02-13 | Daimler-Benz Ag, 7000 Stuttgart | Four-stroke internal combustion engine |
| DE3641129C1 (en) * | 1986-12-02 | 1987-07-30 | Daimler Benz Ag | Device for mounting two camshafts in the cylinder head of a multi-cylinder in-line internal combustion engine |
| JPH0482343U (en) * | 1990-11-29 | 1992-07-17 | ||
| DE4338186A1 (en) * | 1993-11-09 | 1995-05-11 | Kloeckner Humboldt Deutz Ag | Internal-combustion piston engine |
| DE19504637C2 (en) * | 1995-02-13 | 2000-06-08 | Daimler Chrysler Ag | Arrangement for mounting a camshaft and several control elements for gas exchange control on an internal combustion engine |
| DE19507960C1 (en) * | 1995-03-07 | 1996-04-04 | Daimler Benz Ag | Engine brake for Diesel engine |
| DE19621636C2 (en) * | 1996-05-30 | 1999-03-11 | Audi Ag | Device for lubricating the cams of a camshaft |
| DE19729948A1 (en) * | 1997-07-12 | 1999-01-14 | Deutz Ag | Camshaft bearing frame |
| DE19758372C2 (en) * | 1997-12-29 | 2002-08-29 | Ukm Umformtechnik Und Kraftfah | Pressure medium supply for an engine brake system of a multi-cylinder 4-stroke reciprocating piston internal combustion engine |
| DE19845942A1 (en) * | 1998-10-06 | 2000-04-13 | Porsche Ag | Location device for valve gear of multicylinder in-line internal combustion engine with two valves per cylinder operated by overhead camshaft with gear incorporating number of rocker levers |
| JP3764595B2 (en) * | 1998-12-24 | 2006-04-12 | 株式会社日立製作所 | Engine auxiliary brake device |
| DE19953419A1 (en) * | 1999-11-06 | 2001-05-10 | Deutz Ag | Internal combustion engine with gas reverser valve operates valve by roller lever as force transfer link between valve shaft and camshaft using gray iron for cylinder head and crankcase. |
-
2002
- 2002-06-15 DE DE10226688A patent/DE10226688B4/en not_active Expired - Fee Related
-
2003
- 2003-04-29 CN CN038139413A patent/CN1662736A/en active Pending
- 2003-04-29 DE DE50301942T patent/DE50301942D1/en not_active Revoked
- 2003-04-29 JP JP2004513623A patent/JP2005535817A/en not_active Abandoned
- 2003-04-29 EP EP03732297A patent/EP1514020B1/en not_active Revoked
- 2003-04-29 WO PCT/EP2003/004438 patent/WO2003106832A1/en not_active Application Discontinuation
- 2003-04-29 KR KR10-2004-7020230A patent/KR20050012272A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE10226688B4 (en) | 2004-12-09 |
| KR20050012272A (en) | 2005-01-31 |
| WO2003106832A1 (en) | 2003-12-24 |
| JP2005535817A (en) | 2005-11-24 |
| EP1514020A1 (en) | 2005-03-16 |
| EP1514020B1 (en) | 2005-12-14 |
| DE50301942D1 (en) | 2006-01-19 |
| DE10226688A1 (en) | 2004-01-15 |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |