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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 PDF

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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
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CN
China
Prior art keywords
cylinder head
bearing
fastening
head
screw
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Expired - Fee Related
Application number
CN99807032A
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Chinese (zh)
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CN1304476A (en
Inventor
E·迪特斯纯
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Volkswagen AG
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Volkswagen AG
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Publication of CN1304476A publication Critical patent/CN1304476A/en
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Publication of CN1088146C publication Critical patent/CN1088146C/en
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Expired - Fee Related legal-status Critical Current

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    • 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

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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

内燃机汽缸头及其制造方法Cylinder head of internal combustion engine and manufacturing method thereof

本发明涉及如独立权利要求前序部分所述的具有至少一个凸轮轴轴承通道和气门摇杆支承轴的内燃机汽缸头及其制造方法。The invention relates to a cylinder head of an internal combustion engine having at least one camshaft bearing channel and a valve rocker bearing shaft and a method for its production as described in the preambles of the independent claims.

文献DE4232783A1早就公开了上述类型的汽缸头的实施例，其中为每个汽缸的凸轮轴轴承通道配备了一个气门摇杆支承轴以便驱动泵-喷嘴单元。Document DE 42 32 783 A1 already discloses an embodiment of a cylinder head of the above-mentioned type, in which the camshaft bearing channel of each cylinder is equipped with a rocker bearing shaft for driving the pump-nozzle unit.

凸轮轴在具有被拧上的支承桥板的汽缸头的分体轴承中运转。在凸轮轴上方及旁边，在支承桥板上安装了用于气门摇杆支承轴的支架，通过相邻的凸轮轴来驱动所述支架。The camshaft runs in split bearings with cylinder heads screwed on to support the bridge plates. Above and beside the camshaft, a carrier for the valve rocker bearing shaft is mounted on the carrier bridge, said carrier being driven via the adjacent camshaft.

在凸轮轴支承轴的中心轴线与气门摇杆支承轴的支架之间，分别设置了一个螺钉，它将各自的支承桥板与汽缸头连接了起来。为了获得在支承轴下方的其头部位置，必须设置一个穿孔。气门摇杆的支承轴就穿过所述穿孔。就在螺钉旁边，将通过气门摇杆而伸出的固定螺钉拧固在支承桥板中，见上述文献的图3。Between the central axis of the camshaft support shaft and the support of the valve rocker support shaft, a screw is respectively arranged, which connects the respective support bridge plates with the cylinder head. In order to achieve its head position below the bearing shaft, a perforation must be provided. The bearing shaft of the valve rocker just passes through said perforation. Next to the screw, screw the fixing screw protruding through the valve rocker into the support bridge, see Figure 3 of the above-mentioned document.

不利的是，高拉力通过固定螺钉而从气门摇杆支承轴传到支承桥板和汽缸头上。Disadvantageously, high tensile forces are transmitted from the valve rocker support shaft to the support bridge and cylinder head via the set screws.

本发明的任务是，在上述类型的汽缸头中，实现拉力远离汽缸头，其中所述拉力出现在气门摇杆支承轴上并由固定螺钉传递过来。The object of the invention is, in a cylinder head of the above-mentioned type, to realize a pulling force away from the cylinder head, wherein said pulling force occurs on the valve rocker bearing shaft and is transmitted by the fastening screw.

利用权利要求1的特征完成了上述任务。由气门摇杆工作产生的拉力没有对汽缸头加载地直接对接支承在缸体上。通过根据并列权利要求的本发明方法，在制造汽缸头和支承桥板时，通过适当进行紧固而实现了凸轮轴轴承通道以及气门摇杆支承轴支架的难确加工。This task is achieved with the features of claim 1 . The pulling force generated by the operation of the valve rocker is directly butt-supported on the cylinder block without loading the cylinder head. By means of the method according to the invention according to the co-claimed claims, precise machining of the camshaft bearing channel and the rocker support shaft support of the valve rocker is achieved by appropriate fastening during the manufacture of the cylinder head and the support bridge.

以下，结合附图来描述本发明的一个实施例。其中：Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. in:

图1是以沿一个垂直于凸轮轴中心轴线的平面的横截面图表示本发明汽缸头的两侧截面图，其中支承桥板被用螺钉固定住；Fig. 1 shows the side sectional views of the cylinder head of the present invention as a cross-sectional view along a plane perpendicular to the central axis of the camshaft, wherein the supporting bridge plate is fixed with screws;

图2是图1所示的左侧截面图，它处于凸轮轴承和气门摇杆支承轴支架已安装好准备工作的状态。Fig. 2 is the left side sectional view shown in Fig. 1, it is in the state that cam bearing and valve rocker supporting shaft support have been installed and ready for work.

在图1中画出了本发明汽缸头1的一个横截面的两侧截面图，所述横截面经过一个用于两件式凸轮轴轴承3的支承桥板2已被拧固住的平面。1 shows a side view of a cross section of a cylinder head 1 according to the invention through a plane in which a bearing bridge 2 for a two-part camshaft bearing 3 has been screwed on.

支承桥板2还被设计成用于气门摇杆支承轴5的支座(未示出)，它最好也起到了驱动泵-喷嘴单元的作用。支承轴4直接在凸轮轴轴承3的上面和旁边经过并且它借助穿过其的螺钉9被夹紧固定在支承桥板2中的支架31上。The bearing bridge 2 is also designed as a bearing (not shown) for a valve rocker bearing shaft 5, which preferably also serves to drive the pump-nozzle unit. The bearing shaft 4 runs directly above and beside the camshaft bearing 3 and is clamped to a bracket 31 in the bearing bridge 2 by means of screws 9 passing through it.

紧靠着凸轮轴轴承3设置了一个制成在汽缸头1上的、用于汽缸体缸盖面ZB(未示出)的且在那里被拧入的长圆柱头6型紧固螺钉5。在紧固螺钉5的螺钉头6内，形成了一个内轮廓7以及位于其后地形成了一个与内轮廓7的中心横截面相匹配的内螺纹8。穿过支承轴4和支承桥板2的螺钉9被拧在紧固螺钉5的头6的内螺纹8中。Arranged next to the camshaft bearing 3 is a fastening screw 5 with a long cylindrical head type 6 which is made on the cylinder head 1 for the cylinder block cover surface ZB (not shown) and is screwed in there. In the screw head 6 of the fastening screw 5 there is formed an inner contour 7 and behind it an inner thread 8 adapted to the central cross-section of the inner contour 7 . A screw 9 passing through the bearing shaft 4 and the bearing bridge 2 is screwed into the internal thread 8 of the head 6 of the fastening screw 5 .

在凸轮轴3附近的缸盖面ZK下方，汽缸头1在一个穿孔11内具有一个紧固面13，它的外径大于紧固螺钉5的头6。紧固螺钉5在紧固状态下通过一个与紧固面13的大外径相匹配的压力环14压向汽缸头1。从紧固面13开始，在汽缸头1内设置了内螺纹，其内径至少大于外螺纹17的外径或者可以大于可能大的螺钉5的杆径。在图3的右凸轮轴3上，也采用了利用紧固螺钉5的同类布置结构。在这个区域内，支承桥板2在中间接入压力环22的情况下通过一个嵌入紧固螺钉5的螺钉21被紧固在汽缸头1上。Below the cylinder head surface ZK in the vicinity of the camshaft 3 , the cylinder head 1 has in a bore 11 a fastening surface 13 whose outer diameter is larger than the head 6 of the fastening screw 5 . In the tightened state, the fastening screw 5 is pressed against the cylinder head 1 by a pressure ring 14 adapted to the large outer diameter of the fastening surface 13 . Starting from the fastening surface 13 , an internal thread is provided in the cylinder head 1 , the internal diameter of which is at least larger than the external diameter of the external thread 17 or possibly larger than the shank diameter of the possibly large screw 5 . On the right camshaft 3 of FIG. 3 , a similar arrangement utilizing fastening screws 5 is also adopted. In this region, the bearing bridge 2 is fastened to the cylinder head 1 by means of a screw 21 which engages the fastening screw 5 with a pressure ring 22 interposed therebetween.

紧固螺钉5将来自汽缸头和支承桥板2或支承轴4的紧固力直接传递给汽缸体。因出现在支承轴4上的强大作用力引起的汽缸头1或支承桥板2的变形得到避免。通过这种作用，本发明的解决方案对汽缸头1或支承桥板2是由轻金属构成的情况是很有利的。The fastening screw 5 transmits the fastening force from the cylinder head and supporting bridge plate 2 or supporting shaft 4 directly to the cylinder block. Deformations of the cylinder head 1 or of the support bridge 2 due to the strong forces acting on the support shaft 4 are avoided. As a result of this effect, the solution according to the invention is advantageous when the cylinder head 1 or the support bridge 2 is made of light metal.

在支承桥板2上直接位于凸轮轴3上方和旁边的辅助紧固面20环绕固螺钉轴线SA。它最好位于其它螺钉21、23的紧固平面内以便把支承桥板2固定在汽缸头1上。Auxiliary fastening surfaces 20 situated directly above and beside the camshaft 3 on the bearing bridge 2 surround the fastening screw axis SA. It preferably lies in the fastening plane of the other screws 21 , 23 in order to fix the support bridge 2 to the cylinder head 1 .

在汽缸头1内，设有一个接收高压油的油槽24。供油槽25从油槽24起延伸向凸轮轴轴承3，所述轴承也与紧固螺钉5经过区的一个穿孔11相通。高压油从那里进入支承轴4，所述支承轴具有一个中心配油孔(未示出)以便给气门摇杆的润滑部位供油。支承桥板2可以是一个被固定在汽缸头1上的支承架的一体组成部分，所述支承架包括汽缸头1的整个轮廓。Inside the cylinder head 1, there is an oil groove 24 for receiving high-pressure oil. The oil supply groove 25 extends from the oil groove 24 to the camshaft bearing 3 which also communicates with a bore 11 in the passage region of the fastening screw 5 . From there the high-pressure oil enters the support shaft 4, which has a central oil distribution hole (not shown) to supply oil to the lubricating parts of the valve rockers. The bearing bridge 2 can be an integral part of a bearing frame fastened to the cylinder head 1 , which includes the entire contour of the cylinder head 1 .

根据本发明，为了制造支承轴4的支架31和凸轮轴3，借助固定螺钉23和安装螺钉30而将支承桥板2固定在汽缸头1上。安装螺钉30压在支承桥板2的辅助紧固面20上并且被拧在设置在紧固面3下方的汽缸头1内的内螺纹16中。According to the invention, the bearing bridge 2 is fastened to the cylinder head 1 by means of fixing screws 23 and mounting screws 30 in order to manufacture the bracket 31 of the bearing shaft 4 and the camshaft 3 . The mounting screw 30 bears on the auxiliary fastening surface 20 of the bearing bridge 2 and is screwed into an internal thread 16 arranged in the cylinder head 1 below the fastening surface 3 .

通过这种汽缸头1和支承桥板2的预安装，确保了作用适当地紧固，从而可以实现适当的凸轮轴轴承3和支承轴5支架31的制造。By means of this pre-mounting of the cylinder head 1 and the bearing bridge 2 , a functionally proper fastening is ensured so that a suitable manufacture of the camshaft bearing 3 and the bearing 31 of the bearing shaft 5 can be achieved.

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).
CN99807032A 1998-06-12 1999-04-16 Cylinder head for internal combustion engines and method for producing same Expired - Fee Related CN1088146C (en)

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

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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

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EP (1) EP1086300B1 (en)
JP (1) JP2002518623A (en)
CN (1) CN1088146C (en)
DE (2) DE19826286A1 (en)
WO (1) WO1999066176A1 (en)

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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

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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

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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)

* Cited by examiner, † Cited by third party
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

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Publication number Publication date
DE19826286A1 (en) 1999-12-16
WO1999066176A1 (en) 1999-12-23
EP1086300B1 (en) 2001-11-28
EP1086300A1 (en) 2001-03-28
JP2002518623A (en) 2002-06-25
CN1304476A (en) 2001-07-18
DE59900479D1 (en) 2002-01-10

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