CN85108944B - Internal-combustion engine with multi-cylinders - Google Patents

Internal-combustion engine with multi-cylinders Download PDF

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Publication number
CN85108944B
CN85108944B CN85108944A CN85108944A CN85108944B CN 85108944 B CN85108944 B CN 85108944B CN 85108944 A CN85108944 A CN 85108944A CN 85108944 A CN85108944 A CN 85108944A CN 85108944 B CN85108944 B CN 85108944B
Authority
CN
China
Prior art keywords
cylinder head
anchor bolt
combustion engine
internal
cylinder
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
Application number
CN85108944A
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Chinese (zh)
Other versions
CN85108944A (en
Inventor
汉斯·利斯特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avl Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik Mh Profdrc Hans List
Original Assignee
Avl Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik Mh Profdrc Hans List
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Avl Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik Mh Profdrc Hans List filed Critical Avl Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik Mh Profdrc Hans List
Publication of CN85108944A publication Critical patent/CN85108944A/en
Publication of CN85108944B publication Critical patent/CN85108944B/en
Expired legal-status Critical Current

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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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in line
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/02—Attachment or mounting of cylinder heads on cylinders
    • 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
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

In a multi-cylinder internal combustion engine with individual cylinder heads, fixed on the crank case and arranged in line or in banks, which have side faces machined transversely to the longitudinal direction of the internal combustion engine, the cylinder heads contribute virtually nothing to strengthening the engine against its longitudinal vibrations. According to the invention, the individual cylinder heads in a line are braced together by at least one anchor bolt which passes or pass through the cylinder heads in the engine's longitudinal direction. A considerable strengthening of the engine against longitudinal vibrations is thereby achieved. This has the additional advantage that all the cylinder heads can be lifted off as one piece after slackening the cylinder head bolts, which makes assembly and inspection of the valves or pistons easier.

Description

Internal-combustion engine with multi-cylinders
The present invention is about a kind of multi-cylinder engine, and it has on crankcase places and fixing thereon cylinder head with delegation or multirow, and cylinder head is vertical with the vertical working surface of internal-combustion engine, and mutually near.
For internal-combustion engine, particularly those are according to the internal-combustion engine of Diesel's mode work, and in many cases, it is favourable adopting a cylinder head.Its advantage is: it can be used on the internal-combustion engine of different number of cylinders, makes simply and in many cases like this and produces more economically.
Because the spacing of cylinder is not too big, thereby the cylinder head on the side can repeatedly be processed.Keep very little gap between cylinder head, thereby distance between cylinders is also little, its advantage that Here it is also makes engine weight lighten.
The Germany patent specification discloses this class cylinder head that is used for multi-cylinder engine for No. 744040, and it is made up of some monolithic cylinder heads, and the sealing corresponding of its piece number with the cylinder number and corresponding near.It is necessary that cylinder head is done very accurately to cooperate each other, but has brought difficulty to manufacturing.The processing of cylinder head at an upper portion thereof, and only on the cover board corresponding rubber seal place is connected with the pass parts in the cylinder.Shortcoming of this known configurations is: cylinder head almost to preventing that extensional vibration from having not a particle of effect, and only plays humidification to the reinforcing of internal-combustion engine substantially on the height of crankcase.
Purpose of the present invention is exactly for fear of this shortcoming.According to consideration of the present invention, each cylinder head will clamp with an anchor bolt at least on every row, and these bolts vertically connect cylinder head at internal-combustion engine.Therefore, except the advantage that strengthens the anti-vertical vibrations that apply such as the inertial force by drive unit of internal-combustion engine, also have advantage, promptly after unscrewing cylinder head bolt, total cylinder head can resemble an integral body, and this makes when installing easily and be simple.At last, when adjusting valve or piston, also be particularly advantageous.
Can consider in advance in the another kind of structural type of the present invention, between the working surface of adjacent cylinders lid, form each interspace, and among this gap, laid a pad, this pad has encased this (a bit) anchor bolt and firmly fixing, and makes pad fill up this gap.In this case, the tolerance of cylinder head size is that the tolerance that reaches in the gap between the cylinder head can be compensated by the pad of suitable thickness.
In order to make anchorage force be distributed on the cylinder head equably, can consider in advance in another structural type of the present invention, on the side of outside cylinder head, end in every row, a tabular interface that has this (a bit) anchor bolt to use, liner can distribute the power of this (a bit) anchor bolt at least on most of area of cylinder head.Therefore, when being in another structure of the present invention, in the scope that this (a bit) anchor bolt passes, cylinder head provides a stiffening rib; There, the material of cylinder head is round the anchor bolt in this scope.This is another advantage point.The distortion of cylinder head has been avoided in this common each other effect of straining.
The present invention will be illustrated in more detail by an embodiment and with the accompanying drawing signal.Description of drawings: Fig. 1 is the plan view of a kind of internal-combustion engine of the present invention.Fig. 2 is the partial sectional view of II among Fig. 1-II line.
Cylinder head 1 is to rely on cylinder head bolt 2 closely to be connected with the crankcase of having analysed and observe 3.One interspace 6 is arranged between cylinder head 1 or its working surface 4 and 5.Cylinder head 1 has an inlet hole 7 and an exhaust port 8.This inlet hole 7 feeds in the relative both sides of cylinder head with an exhaust port 8.Shown in Fig. 2 and with the suction valves of 9 expressions, the profile of valve guiding has only drawn in Fig. 1.In same graphic technique, outlet valve 10 shows in Fig. 1.
These cylinder heads 1 clamp by anchor bolt 11.When the free side 4 and 5 at one and first the most last cylinder head 1 is clamped by anchor bolt 11, each side is all by flat pad 12, owing to passed through pad 12, the power of anchor bolt can be evenly distributed on the cylinder head and reduce the stress in the material.These flat pads 12 for example can be made with foundry goods, have hidden the side 4 and 5 of cylinder head, though be not to have hidden all, have also hidden most at least.This is applicable to similarly and is filled in the pad in the gap 6 13 between the cylinder head.In the scope of anchor bolt 11, each cylinder head 1 has a strength bar 14, and anchor bolt passes this muscle, and air flue and hydroecium do not pass in this place.And this strength bar is stamped humidification to internal combustion engine shaft line casing top half, for above-mentioned reasons, avoids the stress of material to concentrate equally.
Each cylinder head 1 is connected with the input end of described disclosed Structure of Internal-Combustion Engine relatively more remarkable to the longitudinal vibration effect of internal-combustion engine with one or several anchor bolts 11 with the pad 13 usefulness bolts of laying in gap 6.

Claims (5)

1, a kind of multi-cylinder engine, it has on crankcase places and fixing thereon cylinder head with delegation or multirow, cylinder head is vertical with the vertical working surface of internal-combustion engine, and mutually near, at least one the anchor bolt of monolithic cylinder head 1 usefulness that it is characterized in that every row clamps, and said anchor bolt vertically connects cylinder head 1 with internal-combustion engine.
2, internal-combustion engine as claimed in claim 1, it is characterized in that forming between the working surface 4,5 of adjacent cylinder head 1 each interspace 6, lay a pad 13 in this interspace, said pad encases this (a bit) anchor bolt and firmly fixing, and pad fills up gap 6.
3, as claim 1 or 2 described internal-combustion engines, it is characterized in that on the side of cylinder head 1 outside, the end of every row respectively has a lining on anchor bolt 11, the power of these anchor bolts can be distributed at least the tabular interface on most of area of cylinder head.
4, as claim 1 or 2 described internal-combustion engines, it is characterized in that cylinder head 1 has a stiffening rib 14 in the scope that this (a bit) anchor bolt 11 passes, in said scope, the material of cylinder head 1 is round anchor bolt 11.
5, internal-combustion engine as claimed in claim 3 is characterized in that cylinder head 1 has a stiffening rib 14 in the scope that this (a bit) anchor bolt 11 passes, and in said scope, the material of cylinder head 1 is round anchor bolt 11.
CN85108944A 1984-12-21 1985-12-06 Internal-combustion engine with multi-cylinders Expired CN85108944B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA4086/84 1984-12-21
AT408684A AT396970B (en) 1984-12-21 1984-12-21 MULTI-CYLINDER INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
CN85108944A CN85108944A (en) 1986-07-02
CN85108944B true CN85108944B (en) 1988-12-14

Family

ID=3559474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN85108944A Expired CN85108944B (en) 1984-12-21 1985-12-06 Internal-combustion engine with multi-cylinders

Country Status (3)

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CN (1) CN85108944B (en)
AT (1) AT396970B (en)
DE (1) DE3545098A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506112C2 (en) * 1993-12-16 1997-11-10 Saab Automobile Reinforced cylinder head
DE59406785D1 (en) * 1994-11-21 1998-10-01 Waertsilae Nsd Schweiz Ag Self-igniting reciprocating internal combustion engine
JP4044894B2 (en) * 2003-12-17 2008-02-06 マーン・ベー・オグ・ドバルドヴェー・ディーゼール・アクティーゼルスカブ 2-stroke constant pressure turbocharged internal combustion engine with a single row of 13 cylinders
DE202004002185U1 (en) * 2004-01-28 2004-07-22 Man B & W Diesel A/S Two-stroke internal combustion engine with turbocharging, constant pressure and 14 cylinders in a single row
CN109356743A (en) * 2018-12-12 2019-02-19 中国北方发动机研究所(天津) A kind of cylinder cap on integrated exhaust duct road

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT94118B (en) * 1921-11-25 1923-09-10 Fried Krupp Germaniawerft Ag Cylinder head for multi-cylinder internal combustion engines.
FR801527A (en) * 1936-02-04 1936-08-06 Fond Debard Multi-piece cylinder head for multi-cylinder engines
DE744040C (en) * 1939-12-28 1944-01-07 Kloeckner Humboldt Deutz Ag Cylinder head for multi-cylinder internal combustion engines
AT328228B (en) * 1973-03-16 1976-03-10 Steyr Daimler Puch Ag CYLINDER HEAD FASTENING FOR PISTON MACHINES

Also Published As

Publication number Publication date
CN85108944A (en) 1986-07-02
DE3545098A1 (en) 1986-09-04
AT396970B (en) 1994-01-25
DE3545098C2 (en) 1991-11-07
ATA408684A (en) 1993-05-15

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