WO1999066176A1 - Zylinderkopf für verbrennungsmotoren und verfahren zu seiner herstellung - Google Patents
Zylinderkopf für verbrennungsmotoren und verfahren zu seiner herstellung Download PDFInfo
- Publication number
- WO1999066176A1 WO1999066176A1 PCT/EP1999/002576 EP9902576W WO9966176A1 WO 1999066176 A1 WO1999066176 A1 WO 1999066176A1 EP 9902576 W EP9902576 W EP 9902576W WO 9966176 A1 WO9966176 A1 WO 9966176A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing
- cylinder head
- camshaft
- screws
- head
- Prior art date
Links
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
-
- 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
-
- 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
Definitions
- the invention relates to a cylinder head for internal combustion engines with one or more bearing lanes for camshafts and bearing axles for rocker arms according to the preamble of the main claim and a method for its production.
- the camshaft runs in split bearings of the cylinder head with screwed-on bearing bridges. Above, but next to the camshaft bearings, receptacles for bearing axles of rocker arms are arranged on the bearing bridges, which are driven by the adjacent camshaft.
- a screw is positioned, which connects the respective bearing bracket to the cylinder head.
- a depression is necessary which penetrates the respective receptacle of the bearing axis.
- the fastening screw passing through the bearing axis of the rocker arms is screwed into the bearing bracket, see FIG. 3 of the document mentioned at the beginning.
- the disadvantage is that high tensile forces are transmitted via the fastening screw from the bearing axis of the rocker arm to the bearing bracket and the cylinder head.
- the invention has for its object to achieve a favorable derivation of the tensile forces from the cylinder head, which occur on the bearing axis of the rocker arm and are transmitted by their fastening screws in a generic cylinder head.
- the solution to these tasks is achieved with the features of claim 1.
- the tensile forces from the rocker arm drive are counter-supported directly and without loading the cylinder head on the cylinder block.
- FIG. 2 shows the left-hand cutout, according to FIG. 1, in the assembled state for machining the bearings for the camshafts and the receptacle for the bearing axis of the rocker arms.
- FIG. 1 shows sections of a cross section of the cylinder head 1 according to the invention, which extends through a plane with the screwing of a bearing bracket 2 for a two-part camshaft bearing 3.
- the bearing bracket 2 is also designed as a carrier of a bearing axis 4 for rocker arms - not shown - which are preferably also used to drive pump-nozzle units.
- the bearing axis 4 runs directly next to and above the camshaft bearings 3 and is held braced against receptacles 31 in the bearing bracket 2 by means of screws 9 guided through them.
- this head 6 of the tensioning screw 5 there is an inner profile 7 and behind this an inner thread 8 adapted to the core cross section of the inner profile 7.
- the screw 9 projecting through the bearing axis 4 and bearing bracket 2 is screwed into the internal thread 8 of the head 6 of the clamping screws 5.
- the cylinder head 1 has a clamping surface 13 below the top surface ZK next to the camshaft bearing 3 in a depression 11, which has a larger outer diameter than the head 6 of the clamping screw 5.
- the tensioning screw 5 presses against the cylinder head 1 in the tensioned state via a pressure ring 14 adapted to the larger outside diameter of the tensioning surface 13.
- an internal thread 16 is arranged in the cylinder head 1, the inside diameter of which is at least larger than the outer diameter of the external thread 17 or the possibly larger shaft diameter of the clamping screw 5.
- a similar arrangement with a clamping screw 5 is also present on the right camshaft bearing 3 in FIG. 1.
- the clamping screws 5 transmit the forces for bracing the cylinder head 1 and bearing bracket 2 or the bearing axis 4 directly to the cylinder block. Deformations of the cylinder head 1 or the bearing bracket 2 due to high forces occurring on the bearing axis 4 are avoided. Due to this effect, the solution according to the invention is particularly advantageous for designs of the cylinder head 1 or the bearing bracket 2 made of light metal.
- An auxiliary clamping surface 20 on the bearing bridge 2 lying directly next to and above the camshaft bearings 3 extends around the clamping screw axis SA. It is preferably in the clamping plane Sp of further screws 21 and 23 for fastening the bearing bracket 2 to the cylinder head 1.
- the cylinder head 1 there is an oil channel 24 loaded with pressure oil. From it runs an oil supply channel 25 to the camshaft bearing 3, which also opens into a depression 11 in the passage area of the clamping screw 5. Pressure oil arrives from there to the bearing axis 4, which has a central distribution hole - not shown - for supplying the lubrication points on the rocker arms.
- Bearing brackets 2 can be an integral part of a bearing frame attached to the cylinder head 1, which comprises the entire contour of the cylinder head 1.
- the mounting screws 30 act against the auxiliary clamping surfaces 20 on the bearing bracket 2 and are screwed into the internal thread 16 arranged below the clamping surfaces 13 in the cylinder head 1.
Landscapes
- 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
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000554967A JP2002518623A (ja) | 1998-06-12 | 1999-04-16 | 内燃機関用シリンダヘッドとその製作方法 |
DE59900479T DE59900479D1 (de) | 1998-06-12 | 1999-04-16 | Zylinderkopf für verbrennungsmotoren und verfahren zu seiner herstellung |
EP99919247A EP1086300B1 (de) | 1998-06-12 | 1999-04-16 | Zylinderkopf für verbrennungsmotoren und verfahren zu seiner herstellung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19826286.8 | 1998-06-12 | ||
DE19826286A DE19826286A1 (de) | 1998-06-12 | 1998-06-12 | Zylinderkopf für Verbrennungsmotoren und Verfahren zu seiner Herstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999066176A1 true WO1999066176A1 (de) | 1999-12-23 |
Family
ID=7870734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/002576 WO1999066176A1 (de) | 1998-06-12 | 1999-04-16 | Zylinderkopf für verbrennungsmotoren und verfahren zu seiner herstellung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1086300B1 (de) |
JP (1) | JP2002518623A (de) |
CN (1) | CN1088146C (de) |
DE (2) | DE19826286A1 (de) |
WO (1) | WO1999066176A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1326436B1 (de) * | 2001-12-28 | 2013-02-13 | Sony Corporation | Informationanzeige |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19752381A1 (de) * | 1997-11-26 | 1999-05-27 | Volkswagen Ag | Zylinderkopf für eine Brennkraftmaschine mit Pumpedüse-Einheit |
DE102005020588A1 (de) * | 2005-05-03 | 2006-11-09 | Bayerische Motoren Werke Ag | Verbindungsanordnung |
JP4365373B2 (ja) * | 2006-01-19 | 2009-11-18 | トヨタ自動車株式会社 | 内燃機関のカムシャフト支持構造 |
DE102008007091B4 (de) * | 2008-01-31 | 2010-06-24 | Polytec Automotive Gmbh & Co. Kg | Nockenwellenmodul |
WO2011076959A1 (es) | 2009-12-23 | 2011-06-30 | Amadeo Marti Carbonell, S.A. | Dispositivo para el montaje de la culata de un motor |
CN103352766B (zh) * | 2013-08-06 | 2015-09-30 | 中国嘉陵工业股份有限公司(集团) | 摩托车发动机气缸紧固结构 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB143898A (en) * | 1915-09-06 | 1921-03-31 | Daimler Motoren | Improvements in and connected with engine valve gear casings |
US4430968A (en) * | 1981-03-31 | 1984-02-14 | Yamaha Hatsudoki Kabushiki Kaisha | Cylinder head fastening structure for internal combustion engines |
US4538561A (en) * | 1983-06-20 | 1985-09-03 | Yanmar Diesel Engine Co., Ltd. | Valve arm chamber apparatus for diesel engine |
EP0228533A2 (de) * | 1985-11-26 | 1987-07-15 | Audi Ag | Brennkraftmaschine mit mindestens einer obenliegenden Nockenwelle |
EP0255707A2 (de) * | 1986-08-05 | 1988-02-10 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Anordnung eines Aggregates mittels der Verschraubung eines hochbelasteten Maschinenteils, insbesondere bei Brennkraftmaschinen |
DE4232783A1 (de) | 1992-07-10 | 1994-01-13 | Volkswagen Ag | Zylinderkopf für eine Brennkraftmaschine mit einer Pumpedüse-Einheit |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3641129C1 (de) * | 1986-12-02 | 1987-07-30 | Daimler Benz Ag | Vorrichtung zur Lagerung von zwei Nockenwellen im Zylinderkopf einer mehrzylindrigen Reihenbrennkraftmaschine |
DE4215051C2 (de) * | 1992-05-07 | 1997-05-28 | Audi Ag | Lageranordnung |
DE19634541A1 (de) * | 1995-09-09 | 1997-03-13 | Volkswagen Ag | Verfahren zum Herstellen einer Lageranordnung in einem Zylinderkopf einer Brennkraftmaschine |
-
1998
- 1998-06-12 DE DE19826286A patent/DE19826286A1/de not_active Withdrawn
-
1999
- 1999-04-16 JP JP2000554967A patent/JP2002518623A/ja not_active Withdrawn
- 1999-04-16 DE DE59900479T patent/DE59900479D1/de not_active Expired - Lifetime
- 1999-04-16 EP EP99919247A patent/EP1086300B1/de not_active Expired - Lifetime
- 1999-04-16 WO PCT/EP1999/002576 patent/WO1999066176A1/de active IP Right Grant
- 1999-04-16 CN CN99807032A patent/CN1088146C/zh not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB143898A (en) * | 1915-09-06 | 1921-03-31 | Daimler Motoren | Improvements in and connected with engine valve gear casings |
US4430968A (en) * | 1981-03-31 | 1984-02-14 | Yamaha Hatsudoki Kabushiki Kaisha | Cylinder head fastening structure for internal combustion engines |
US4538561A (en) * | 1983-06-20 | 1985-09-03 | Yanmar Diesel Engine Co., Ltd. | Valve arm chamber apparatus for diesel engine |
EP0228533A2 (de) * | 1985-11-26 | 1987-07-15 | Audi Ag | Brennkraftmaschine mit mindestens einer obenliegenden Nockenwelle |
EP0255707A2 (de) * | 1986-08-05 | 1988-02-10 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Anordnung eines Aggregates mittels der Verschraubung eines hochbelasteten Maschinenteils, insbesondere bei Brennkraftmaschinen |
DE4232783A1 (de) | 1992-07-10 | 1994-01-13 | Volkswagen Ag | Zylinderkopf für eine Brennkraftmaschine mit einer Pumpedüse-Einheit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1326436B1 (de) * | 2001-12-28 | 2013-02-13 | Sony Corporation | Informationanzeige |
Also Published As
Publication number | Publication date |
---|---|
DE19826286A1 (de) | 1999-12-16 |
DE59900479D1 (de) | 2002-01-10 |
CN1304476A (zh) | 2001-07-18 |
CN1088146C (zh) | 2002-07-24 |
EP1086300B1 (de) | 2001-11-28 |
JP2002518623A (ja) | 2002-06-25 |
EP1086300A1 (de) | 2001-03-28 |
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