CN1088146C - Cylinder head for internal combustion engines and method for producing same - Google Patents
Cylinder head for internal combustion engines and method for producing same Download PDFInfo
- Publication number
- CN1088146C CN1088146C CN99807032A CN99807032A CN1088146C CN 1088146 C CN1088146 C CN 1088146C CN 99807032 A CN99807032 A CN 99807032A CN 99807032 A CN99807032 A CN 99807032A CN 1088146 C CN1088146 C CN 1088146C
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- fastening
- bearing
- supporting
- head
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
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- 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
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
- F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a cylinder head for internal combustion engines, comprising one or more passages for mounting camshafts and bearing axles for rocker arms which preferably also actuate a pump-nozzle unit. The cylinder head has the following structure: at least one camshaft is mounted in the cylinder head in divided bearings having screwed on bearing bridges; next to and above the camshaft bearings seats are arranged at the level of the bearing bridges for bearing axles of rocker arms driven by the adjacent camshafts; the bearing axles are held tightly against the bearing bridge by means of screws projecting through them. The aim of the invention is to provide a way of deflecting the tensile forces from the cylinder head which occur at the level of the bearing axle of the rocker arms and are transmitted by their fixing screws. This is achieved by the following characteristics: next to the camshaft bearing (3) a tightening screw (5) with a longer cylindrical head (6) is arranged which is supported by the cylinder head (1) and extends as far as the cylinder block and engages same; the longer cylindrical head (6) has an internal profile (7) and, behind it, an inner thread (8) which is adjusted to the core cross-section of the internal profile (7); the screws (9) projecting through the bearing axles (4) are screwed into the inner thread (8) of the head (6) of the tightening screws (5).
Description
The present invention relates to as independent claims cylinder head for internal combustion engines and the manufacture method thereof with at least one camshaft bearing passage and valve rock arm supporting axle as described in the preamble.
Document DE4232783A1 discloses the embodiment of the cylinder head of the above-mentioned type for a long time, wherein has been equipped with a valve rock arm supporting axle so that driven pump-nozzle unit for the camshaft bearing passage of each cylinder.
Camshaft turns round in the split bearing of the cylinder head with supporting bridge plate of being screwed on.Above camshaft and the next door, installed on the bridge plate in supporting and to be used for valve rock arm supporting shaft support, drive described support by adjacent camshaft.
Between the central axis and valve rock arm supporting shaft support of camshaft supporting axle, be provided with a screw respectively, it connects separately supporting bridge plate and cylinder head.In order to obtain its head position below supporting axle, a perforation must be set.The supporting axle of valve rock arm just passes described perforation.Just, will twist admittedly in the supporting bridge plate, see Fig. 3 of above-mentioned document by the set screw that valve rock arm stretches out on the screw next door.
Disadvantageously, high tensile strength passes on supporting bridge plate and the cylinder head from the valve rock arm supporting axle by set screw.
Task of the present invention is, in the cylinder head of the above-mentioned type, realizes pulling force away from cylinder head, and wherein said pulling force appears on the valve rock arm supporting axle and by set screw and passes over.
Utilize the feature of claim 1 to finish above-mentioned task.The pulling force that is produced by valve rock arm work does not have the direct butt joint in countercylinder head loading ground to be bearing on the cylinder body.By the inventive method, when making cylinder head and supporting bridge plate, by suitably carrying out the fastening difficult true processing that has realized camshaft bearing passage and valve rock arm supporting axle support according to claim arranged side by side.
Below, one embodiment of the present of invention are described in conjunction with the accompanying drawings.Wherein:
Fig. 1 is to represent two side cross-sectional view of cylinder head of the present invention along a cross-sectional view perpendicular to the plane of camshaft central axis, wherein to support bridge plate and be screwed;
Fig. 2 is a left side cross-sectional view shown in Figure 1, and it is in the state that camshaft bearing and valve rock arm supporting axle support have installed preparatory work.
Two side cross-sectional view of a cross section of having drawn cylinder head 1 of the present invention in Fig. 1, described cross section has been twisted the solid plane of living through a supporting bridge plate 2 that is used for two-piece type camshaft bearing 3.
Supporting bridge plate 2 also is designed to the bearing (not shown) of valve rock arm supporting axle 5, and it has preferably also played the effect of driven pump-nozzle unit.Supporting axle 4 directly passes through with the next door on camshaft bearing 3 and it is by on the screw 9 clamped supports 31 that are fixed in the supporting bridge plate 2 that pass it.
Nestle up camshaft bearing 3 be provided with one be formed on the cylinder head 1, be used for (not shown) and the oval column cap 6 type fastening screw trip bolts 5 that be screwed into there of cylinder block cylinder cap face ZB.In the screw head 6 of fastening screw trip bolt 5, formed an interior profile 7 and be positioned at and formed the internal thread 8 that a center cross-sectional with profile 7 is complementary thereafter.The screw 9 that passes supporting axle 4 and supporting bridge plate 2 is screwed in 6 the internal thread 8 of fastening screw trip bolt 5.
Below near the cylinder cap face ZK the camshaft 3, cylinder head 1 has one fastening 13 a perforation in 11, and its external diameter is greater than 6 of fastening screw trip bolt 5.Fastening screw trip bolt 5 is pressed to cylinder head 1 by a pressure ring 14 that is complementary with fastening 13 big external diameter under tightening state.From fastening 13, in cylinder head 1, be provided with internal thread, its internal diameter is at least greater than the external diameter of outside thread 17 or can be greater than the bar footpath of screw 5 that may be big.On the right camshaft 3 of Fig. 3, also adopted the similar layout that utilizes fastening screw trip bolt 5.In this zone, supporting bridge plate 2 is fastened on the cylinder head 1 by a screw 21 that embeds fastening screw trip bolt 5 under the situation of centre access pressure ring 22.
Fastening screw trip bolt 5 will be directly passed to cylinder block from the fastening force of cylinder head and supporting bridge plate 2 or supporting axle 4.Be avoided because of appearing at the cylinder head 1 that the powerful active force on the supporting axle 4 causes or the distortion of supporting bridge plate 2.By this effect, solution countercylinder head 1 of the present invention or supporting bridge plate 2 are to be very favourable by the situation that light metal constitutes.
Above supporting is located immediately at camshaft 3 on the bridge plate 2 and auxiliary fastening 20 of next door around consolidating screw axis SA.It preferably is positioned at the fastening plane of other screw 21,23 so that supporting bridge plate 2 is fixed on the cylinder head 1.
In cylinder head 1, be provided with an oil groove 24 that receives high pressure oil.To camshaft bearing 3, described bearing also communicates with the perforation 11 of fastening screw trip bolt 5 through the district oil supply 25 from oil groove 24 extensions.High pressure oil enters supporting axle 4 therefrom, and described supporting axle has a center oil distributing hole (not shown) so that give the lubricant housings fuel feeding of valve rock arm.Supporting bridge plate 2 can be an one constituent element that is fixed on the bearing support on the cylinder head 1, and described bearing support comprises the whole profile of cylinder head 1.
According to the present invention, for support 31 and the camshaft 3 of making supporting axle 4, by set screw 23 and mounting screw 30 and will support bridge plate 2 and be fixed on the cylinder head 1.Mounting screw 30 is pressed in the supporting auxiliary fastening 20 of bridge plate 2 and is screwed in the interior internal thread 16 of the cylinder head 1 that is arranged on fastening 3 below.
By the pre-installation of this cylinder head 1 and supporting bridge plate 2, guaranteed that effect is suitably fastening, thereby can realize the manufacturing of suitable camshaft bearing 3 and supporting axle 5 supports 31.
Claims (7)
1. internal combustion vapour cylinder head with at least one camshaft bearing passage and valve rock arm supporting axle, wherein said valve rock arm is also being handled a unit fuel injector unit, and described cylinder head comprises following structure:
-at least one camshaft is supported in cylinder head in the split bearing with supporting bridge plate of being screwed on;
-near camshaft bearing and above, be provided with valve rock arm supporting shaft support on the bridge plate in supporting;
-be arranged on the interior supporting axle (4) of support (31) to be fastened on the supporting bridge plate by the screw that passes it;
It is characterized in that,
-being provided with one to be bearing on the cylinder head (1), that stretch to engine block and to have the fastening screw trip bolt (5) of elongated cylindrical head (6) on camshaft bearing (3) next door, described screw (5) is applicable to the cylinder body embedding and ties;
-elongated cylindrical head (6) has profile (7) in one and has the internal thread (8) that one section center cross-sectional with interior profile (7) is complementary thus down;
-the screw (9) that passes supporting axle (4) is screwed into the in the internal thread (8) of fastening screw trip bolt (5) head (6).
2. require 1 described cylinder head as power, it is characterized in that, in cylinder head (1), one fastening (13) are set near the below of the cylinder cap face (ZK) the camshaft bearing (3) at interface between a formation cylinder head (1) and supporting bridge plate (2), described fastening external diameter is greater than the head (6) of fastening screw trip bolt (5), and fastening screw trip bolt (5) is secured on the cylinder head (1) by the pressure ring (14) that a big external diameter with fastening (13) is complementary.
3. cylinder head as claimed in claim 2 is characterized in that, one section internal thread (15) is arranged in the cylinder head (1) of fastening (13) below, and the internal diameter of described internal thread is greater than the external diameter of outside thread (17) or greater than the polished rod footpath of fastening screw trip bolt (5).
4. cylinder head as claimed in claim 1, it is characterized in that, auxiliary fastening (20) in the supporting bridge plate are looped around near the fastening screw trip bolt axis (SA) the camshaft bearing (3), described auxiliary fastening fastening plane (Sp) that preferably is positioned at other set screw (21).
5. cylinder head as claimed in claim 2, it is characterized in that one is used for that the oil supply (25) of the camshaft bearing (3) in the cylinder head (1) communicates with clamping bolt through hole (11) on interior fastening (13) and the supporting axle (4) of valve rock arm has a center oil distributing hole.
6. cylinder head as claimed in claim 1 is characterized in that, supporting bridge plate (2) is an one constituent element that is fixed on the bearing support on the cylinder head (1).
7. make the method for the described cylinder head of one of claim at least as described above, it is characterized in that, in order to make the support (31) of camshaft bearing (3) and supporting axle (4), to support bridge plate (2) by set screw (23) and mounting screw (30) and be fastened on the cylinder head (1), one section internal thread (16) that is arranged on cylinder cap face (ZK) below from cylinder head (1) will pacify and be changeed screw (30) and be fastened on of supporting bridge plate (2) and assist on fastening (20).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19826286A DE19826286A1 (en) | 1998-06-12 | 1998-06-12 | Cylinder head for internal combustion engines and process for its manufacture |
| DE19826286.8 | 1998-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1304476A CN1304476A (en) | 2001-07-18 |
| CN1088146C true CN1088146C (en) | 2002-07-24 |
Family
ID=7870734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99807032A Expired - Fee Related CN1088146C (en) | 1998-06-12 | 1999-04-16 | Cylinder head for internal combustion engines and method for producing same |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1086300B1 (en) |
| JP (1) | JP2002518623A (en) |
| CN (1) | CN1088146C (en) |
| DE (2) | DE19826286A1 (en) |
| WO (1) | WO1999066176A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101970841B (en) * | 2008-01-31 | 2014-09-03 | 泰森克鲁普普里斯塔技术中心股份公司 | Camshaft module |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19752381A1 (en) * | 1997-11-26 | 1999-05-27 | Volkswagen Ag | Motor cylinder head |
| EP1326436B1 (en) * | 2001-12-28 | 2013-02-13 | Sony Corporation | Displaying information |
| DE102005020588A1 (en) * | 2005-05-03 | 2006-11-09 | Bayerische Motoren Werke Ag | System for mounting cylinder heads on crankcases in IC engines comprises rods passing through crankcase with internally threaded upper ends, shorter, externally threaded rods passing through cylinder head and being screwed into these |
| JP4365373B2 (en) * | 2006-01-19 | 2009-11-18 | トヨタ自動車株式会社 | Camshaft support structure for internal combustion engine |
| WO2011076959A1 (en) * | 2009-12-23 | 2011-06-30 | Amadeo Marti Carbonell, S.A. | Device for assembling the cylinder head of an engine |
| CN103352766B (en) * | 2013-08-06 | 2015-09-30 | 中国嘉陵工业股份有限公司（集团） | Motorcycle engine cylinder fastening structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538561A (en) * | 1983-06-20 | 1985-09-03 | Yanmar Diesel Engine Co., Ltd. | Valve arm chamber apparatus for diesel engine |
| EP0228533A2 (en) * | 1985-11-26 | 1987-07-15 | Audi Ag | Internal-combustion engine with at least one overhead camshaft |
| DE4232783A1 (en) * | 1992-07-10 | 1994-01-13 | Volkswagen Ag | Cylinder head for an internal combustion engine with a pump nozzle unit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT87113B (en) * | 1915-09-06 | 1922-01-25 | Daimler Motoren | Valve control for prime movers. |
| JPS57163141A (en) * | 1981-03-31 | 1982-10-07 | Yamaha Motor Co Ltd | Cylinder head clamping structure in internal- combustion engine |
| DE3626530C1 (en) * | 1986-08-05 | 1988-02-18 | Bayerische Motoren Werke Ag | Arrangement of an assembly by means of the screw connection of a highly stressed machine part, especially in internal combustion engines |
| 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 |
| DE4215051C2 (en) * | 1992-05-07 | 1997-05-28 | Audi Ag | Bearing arrangement |
| DE19634541A1 (en) * | 1995-09-09 | 1997-03-13 | Volkswagen Ag | Bearing fitting process for cylinder head of IC engine |
-
1998
- 1998-06-12 DE DE19826286A patent/DE19826286A1/en not_active Withdrawn
-
1999
- 1999-04-16 CN CN99807032A patent/CN1088146C/en not_active Expired - Fee Related
- 1999-04-16 JP JP2000554967A patent/JP2002518623A/en not_active Withdrawn
- 1999-04-16 DE DE59900479T patent/DE59900479D1/en not_active Expired - Lifetime
- 1999-04-16 EP EP99919247A patent/EP1086300B1/en not_active Expired - Lifetime
- 1999-04-16 WO PCT/EP1999/002576 patent/WO1999066176A1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538561A (en) * | 1983-06-20 | 1985-09-03 | Yanmar Diesel Engine Co., Ltd. | Valve arm chamber apparatus for diesel engine |
| EP0228533A2 (en) * | 1985-11-26 | 1987-07-15 | Audi Ag | Internal-combustion engine with at least one overhead camshaft |
| DE4232783A1 (en) * | 1992-07-10 | 1994-01-13 | Volkswagen Ag | Cylinder head for an internal combustion engine with a pump nozzle unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101970841B (en) * | 2008-01-31 | 2014-09-03 | 泰森克鲁普普里斯塔技术中心股份公司 | Camshaft module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999066176A1 (en) | 1999-12-23 |
| EP1086300B1 (en) | 2001-11-28 |
| CN1304476A (en) | 2001-07-18 |
| EP1086300A1 (en) | 2001-03-28 |
| DE19826286A1 (en) | 1999-12-16 |
| JP2002518623A (en) | 2002-06-25 |
| DE59900479D1 (en) | 2002-01-10 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |