EP0123101B1 - Culasse pour moteur à combustion interne alternatif à refroissement par air - Google Patents
Culasse pour moteur à combustion interne alternatif à refroissement par air Download PDFInfo
- Publication number
- EP0123101B1 EP0123101B1 EP84102773A EP84102773A EP0123101B1 EP 0123101 B1 EP0123101 B1 EP 0123101B1 EP 84102773 A EP84102773 A EP 84102773A EP 84102773 A EP84102773 A EP 84102773A EP 0123101 B1 EP0123101 B1 EP 0123101B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- cylinder
- cooling
- cylinder head
- fins
- 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
Links
Images
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
- F02F1/26—Cylinder heads having cooling means
- F02F1/28—Cylinder heads having cooling means for air cooling
- F02F1/30—Finned cylinder heads
- F02F1/32—Finned cylinder heads the cylinder heads being of overhead valve type
Definitions
- the invention relates to an air-cooled reciprocating piston internal combustion engine according to the preamble of claim 1.
- a generic air-cooled reciprocating internal combustion engine with corresponding single cylinder heads is known from the engine series 924 to 930 of the Tatra-Werke, CSSR, and in the specialist book "Air-cooled vehicle engines by J. Mackerle, Frank'sche Verlagbuch Kunststoff, Stuttgart, 1964" on pages 171 to 173 and 524 to 528 shown and described.
- the cylinder heads and the cooling fins are designed in such a way that each cylinder head forms a cooling unit and is flowed through in a substantially straight line.
- the individual cylinder head like the side baffles, is only a limitation for the air flow to the other cylinder head.
- Such a reciprocating piston internal combustion engine or such a cylinder head is only suitable for limited outputs, since in particular the area of the exhaust port and the area between
- the object of the present invention is to improve a generic air-cooled reciprocating piston internal combustion engine or its cylinder heads and their cooling in such a way that higher outputs can be achieved, high strength of the cylinder head should be ensured, and in particular good cooling air guidance with good cooling of the hottest points of the cylinder head is to be achieved.
- adjacent cylinder heads by means of the outer contours of the gas exchange channels in connection with central areas arranged between the valve stem guides and with cooling ribs oriented essentially transversely to the cylinder axis form an at least arc-shaped cooling air channel in a cylinder head cover area facing away from the cylinder in a substantially horizontal plane and that the cylinder-side cylinder head base section is provided circumferentially on the exhaust air side and on the fourth side opposite the inlet valve stem guide with cooling fins and has the slugs for the fastening screws.
- the cylinder head according to the invention is formed in one piece, but can be divided into a cylinder head cover area facing away from the cylinder and into a cylinder head bottom area.
- the cylinder head base area is so thick that sufficient strength is achieved and a stable and even seal to the cylinder tube is achieved.
- the slugs for the fastening screws of the cylinder head also end, so that the cylinder head cut above it, which faces away from the cylinder, is determined exclusively by the gas exchange channels and cooling fins and a central area.
- the plane leading through the valve stem guides is preferably rotated by 30 ° to the longitudinal direction of the internal combustion engine.
- the approximately hook-shaped curved inlet duct extends from the valve to the center of the supply air side of the cylinder head and the outlet duct is guided essentially at right angles to the exhaust air side in the shortest way to this, resulting in - if you look at two cylinder heads from above - an arc or S-shaped cooling air duct.
- the cooling air is deflected several times in this cooling air duct and therefore brings about very good heat dissipation.
- this cooling channel which, depending on the size of the cooling fins, can be divided into a plurality of curved or S-shaped sections, is very large, since there are no slugs for the fastening screws.
- a cooling air stream cools in the area of the exhaust valve and the exhaust port, also in the area of the cylinder head; which consists of a partial flow of air coming in a straight line via a duct and an indentation and a partial air flow via oblique ribs arranged at an acute angle in the cylinder head base area.
- the partial air flow via the inclined ribs is branched off from the main air flow.
- the arrangement of further V-ribs and parallel ribs in the cylinder head base area on the exhaust air side according to claim 4 and arrangement of locking plates on the exhaust air side according to claim 8 ensures that the parts of the arc-shaped or S-shaped main cooling air flow also to the exhaust air side in the Area below the exhaust port to the cylinder head floor area.
- the outer contour of the cylinder head cover area facing away from the cylinder is also reduced compared to the cooling fins below the exhaust port, so that a sufficiently large air flow can reach these fins.
- the extension and bending of the locking plates along the upper edge of the cylinder heads also contribute to this, as well as the configurations of the locking plates on the exhaust side and by choosing one suitable flow distance to the outlet duct contour, to the next locking plate and to the cylinder head base, ensure that the cooling air is guided precisely and in a metered manner until it leaves the cylinder heads.
- the locking plates in the area of the cylinder head floor area between two adjacent cylinder head floors have recesses through which the air flow guided through the channel and the indentation can escape.
- the central area between the gas exchange channels can be produced in one piece, solidly and without interruption with the cylinder head, and that the injection nozzle arranged there is adequately cooled by the inventive design of the cylinder head. If the central area also has to be cooled in the event of special requirements, the invention provides for cooling fins or channels for coolant to be provided there as well. For example, an incision could be provided between the outlet duct and the central region or the central region and the inlet duct.
- the main cooling air duct between the cylinder heads is arched or S-shaped, it is proposed according to claim 12, since the lateral guide plates also have extensions which correspond to the guidance through a further cylinder head. They are also advantageously integrally connected to the corresponding part of the locking plate.
- 1 generally designates a single cylinder head of an air-cooled reciprocating internal combustion engine, the outer shape of which is essentially cube-shaped and each has an inlet duct 2 and an outlet duct 3, which extend to the supply air side 16 and the opposite exhaust air side 17 of the cylinder head 1.
- the intake port 2 and the exhaust port 3 are controlled by intake valves, not shown, which limit the gas changes 2, 3 at their ends on the cylinder head bottom side.
- cooling air flows towards the cylinder heads 1, which is supplied on the supply air side 16 and leaves the cylinder heads 1 on the exhaust air side 17.
- the plane running through the axes of the valve stem guides 20, 22 is rotated at an angle of 30 ° to the longitudinal direction of the internal combustion engine.
- the inlet duct 2 begins in the middle of the supply air side 16 and merges with the inlet valve into a swirl duct.
- the exhaust duct 3 opens out - by the shortest route from the exhaust duct to the outside - vertically on the exhaust side 17 of the cylinder head 1.
- a central region 4 is provided, which in the exemplary embodiment of the invention is made solid and in one piece with the cylinder head .
- the cylinder head 1 creates an arc-shaped or S-shaped cooling air duct 5 in connection with the respectively adjacent cylinder head 1, in which the cooling air is deflected several times and therefore optimally dissipates heat.
- the cylinder head 1 has a cylinder head base region 6 and a cylinder head deck region 7.
- the cylinder head cover area 7 has cooling fins 8 which are aligned perpendicular to the cylinder axis and essentially extend from the inlet and outlet channels 2, 3 or from the central area 4 to the outer sides 16, 17, 18, 19.
- the cylinder head base region 6 has slugs 9 for fastening screws 23 (FIG. 5).
- the cylinder head base region 6 has, on the side opposite the inlet duct 2, 19 inclined ribs 8a (FIGS. 1, 4) which are aligned at an acute angle to the cylinder axis. Below these inclined ribs 8a, as can also be seen from FIG. 2, a channel 10 is provided, which extends from the supply air side 16 to the exhaust air side 17. Longitudinal ribs 8b are arranged in the channel 10 from the supply air side 16 to the inclined ribs 8a. The channel 10 is widened in connection with the oblique ribs 8a or the longitudinal ribs 8b, so that the partial air streams (FIG. 4) combined here can flow freely. Depending on the desired size of the cooling air flows through the lateral ribs of the cover plate section, the adjacent cylinder head 1 can have an adapted indentation 21 on the adjacent side.
- the cylinder head base area 6 has on the exhaust air side 17 at an acute angle to the cylinder axis and V-shaped under the exhaust port 3 V-ribs 8c, to which parallel ribs 8d aligned parallel to the cylinder axis and reaching to the cylinder head base are connected (FIGS. 2, 5) .
- the incoming cold cooling air divides (outlined arrows) into a main air flow, which flows through the arc-shaped or S-shaped cooling air duct 5, 5a, 5b, and into a partial air flow, which flows laterally through the cylinder head base region.
- the cooling air heats up on the walls of the cylinder head 1 and exits as heated air (arrows drawn in bold).
- locking plates 11 which have a throughflow distance 12 to the side of the next barrier and on the cylinder head base side, as a result of which the amount of cooling air is throttled and also flows around the cylinder head 1 completely on the exhaust air side 17 for a good cooling effect.
- the locking plate 11 has a recess 13 through which the cooling air flow coming from the channel 10 or the opposite recess 21 can exit.
- the locking plate 11 is bent at a right angle in the area of the upper edge of the cylinder heads 1 and follows the upper contour of the cylinder heads 1 (FIG. 4).
- the arc-shaped or S-shaped cooling air duct is limited at the top and cooling air is also guided to the cooling ribs 8c, 8d of the cylinder head base region 6 on the exhaust air side 17 below the exhaust duct 3.
- baffles 14a, 14b are provided, which are shaped so that they replace the outer contour of the adjacent cylinder head 1 and part of the corresponding locking plate 11, so that the arc-shaped or S-shaped cooling air duct 5a, 5b largely similar to a cooling air duct 5 is retained.
- This configuration of the cylinder heads 1 results overall in a very good cooling air flow and a very good utilization of the cooling air, so that the central area 4 can be made solid and only one bore 15 is provided at the optimal combustion point for receiving an injection nozzle of a self-igniting diesel internal combustion engine, without that the injector overheats.
Landscapes
- 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)
Claims (13)
caractérisé en ce que les têtes de cylindre (1) voisines sont en liaison par les contours extérieurs des canaux d'admission et d'échappement (2) avec des zones centrales (4) entre les moyens de guidage (20, 22) des tiges de soupape et des ailettes de refroidissement (8, 8a, 8b) dirigées pratiquement transversalement à l'axe du cylindre avec au moins un canal d'air de refroidissement (5) courbe dans une zone supérieure de tête de cylindre (7) opposée au cylindre dans un plan essentiellement horizontal et en ce que le segment de fond de la tête de cylindre (6) situé du côté du cylindre, comporte à la périphérie, principalement du côté de la sortie d'air (17) et sur le quatrième côté (19), opposé au moyen de guidage (20) des tiges de soupape d'admission, des ailettes de refroidissement et que des loqements sont prévus pour les vis de fixation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84102773T ATE31105T1 (de) | 1983-04-22 | 1984-03-14 | Zylinderkopf fuer eine luftgekuehlte hubkolbenbrennkraftmaschine. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3314720 | 1983-04-22 | ||
DE19833314720 DE3314720A1 (de) | 1983-04-22 | 1983-04-22 | Zylinderkopf fuer eine luftgekuehlte hubkolbenbrennkraftmaschine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0123101A2 EP0123101A2 (fr) | 1984-10-31 |
EP0123101A3 EP0123101A3 (en) | 1985-11-13 |
EP0123101B1 true EP0123101B1 (fr) | 1987-11-25 |
Family
ID=6197143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84102773A Expired EP0123101B1 (fr) | 1983-04-22 | 1984-03-14 | Culasse pour moteur à combustion interne alternatif à refroissement par air |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0123101B1 (fr) |
JP (1) | JPS59206652A (fr) |
AT (1) | ATE31105T1 (fr) |
CA (1) | CA1232501A (fr) |
DE (2) | DE3314720A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62197658A (ja) * | 1986-02-24 | 1987-09-01 | Yanmar Diesel Engine Co Ltd | 内燃機関のシリンダヘツド冷却装置 |
DE10239534A1 (de) * | 2002-08-23 | 2004-04-22 | Man Turbomaschinen Ag | Heißgas führendes Gassammelrohr |
CN102400811B (zh) * | 2011-12-19 | 2013-03-20 | 力帆实业(集团)股份有限公司 | 三气门发动机气缸头 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE544548A (fr) * | ||||
DE862690C (de) * | 1943-10-19 | 1953-01-12 | Kloeckner Humboldt Deutz Ag | Kuehlluftfuehrung am Zylinderkopf von luftgekuehlten Brennkraftmaschinen mit einem Nebenraum |
DE970978C (de) * | 1952-04-13 | 1958-11-20 | Kloeckner Humboldt Deutz Ag | Luftgekuehlter Zylinderkopf fuer Brennkraftmaschinen |
AT185623B (de) * | 1953-06-12 | 1956-05-25 | Motoren Werke Mannheim Ag | Zylinderkopf für gebläseluftgekühlte, ventilgesteuerte Brennkraftmaschinen |
CH343708A (fr) * | 1957-05-23 | 1959-12-31 | Lister & Co Ltd R A | Moteur à combustion interne et allumage par compression |
DE1119600B (de) * | 1958-11-15 | 1961-12-14 | Linde S Eismaschinen Ag Zweign | Luftgekuehlter Zylinderkopf fuer Brennkraftmaschinen |
DE1187425B (de) * | 1959-10-10 | 1965-02-18 | Motoren Werke Mannheim Ag | Zylinderkopf fuer luftgekuehlte Einspritzbrennkraftmaschinen |
CS163067B1 (fr) * | 1973-03-28 | 1975-07-31 | ||
DE2523077A1 (de) * | 1975-05-24 | 1976-12-02 | Kloeckner Humboldt Deutz Ag | Zylinderkopf fuer eine luftgekuehlte hubkolbenmaschine |
AT365743B (de) * | 1977-06-07 | 1982-02-10 | List Hans | Zylinderkopf fuer eine luftgekuehlte brennkraftmaschine |
-
1983
- 1983-04-22 DE DE19833314720 patent/DE3314720A1/de not_active Withdrawn
-
1984
- 1984-03-14 EP EP84102773A patent/EP0123101B1/fr not_active Expired
- 1984-03-14 AT AT84102773T patent/ATE31105T1/de not_active IP Right Cessation
- 1984-03-14 DE DE8484102773T patent/DE3467793D1/de not_active Expired
- 1984-04-19 CA CA000452380A patent/CA1232501A/fr not_active Expired
- 1984-04-20 JP JP59078812A patent/JPS59206652A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE3467793D1 (en) | 1988-01-07 |
EP0123101A3 (en) | 1985-11-13 |
DE3314720A1 (de) | 1984-10-25 |
EP0123101A2 (fr) | 1984-10-31 |
CA1232501A (fr) | 1988-02-09 |
JPS59206652A (ja) | 1984-11-22 |
ATE31105T1 (de) | 1987-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1516113B1 (fr) | Culasse refroidie pour moteur a combustion interne a pistons | |
DE2839199C2 (de) | Im Druckgießverfahren herstellbarer Zylinderkopf für wassergekühlte Brennkraftmaschinen | |
EP0771941B2 (fr) | Culasse pour moteur à combustion interne | |
EP0838585B1 (fr) | Culasse pour un moteur à combustion interne à plusieurs cylindres | |
EP1108878A2 (fr) | Moteur à combustion interne avec un conduit d'admission divisé | |
EP0268988B1 (fr) | Moteur diesel | |
AT402325B (de) | Zylinderkopf einer flüssigkeitsgekühlten brennkraftmaschine mit in reihe angeordneten zylindern | |
DE29915577U1 (de) | Brennkraftmaschine mit zwei Einlaßventilen je Zylinder | |
EP0062143B1 (fr) | Culasse de cylindres pour un moteur à compression d'air, à auto-allumage et à injection | |
EP0819837B1 (fr) | Circuit de refroidissement d'un moteur à combustion interne | |
EP0123101B1 (fr) | Culasse pour moteur à combustion interne alternatif à refroissement par air | |
EP0154144B1 (fr) | Moteur à combustion interne refroidi par air | |
DE10048582A1 (de) | Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine | |
AT402433B (de) | Zylinderkopf für eine brennkraftmaschine | |
DE1296460B (de) | Zylinderkopf fuer Brennkraftmaschinen mit zwei Einlass- und zwei Auslassventilen je Zylinder | |
DE3806031A1 (de) | Mehrzylindermotorblock fuer einen zweitaktverbrennungsmotor | |
DE69407693T2 (de) | Brennkraftmaschine | |
DE19509002C2 (de) | Thermostatanbaupositionsstruktur | |
EP0974003B1 (fr) | Moteur a combustion interne a quatre temps a cylindres multiples | |
DE2733303A1 (de) | Vorkammer-dieselmaschine | |
DE3819656C1 (fr) | ||
DE3540488C2 (fr) | ||
DE4140772A1 (de) | Vorrichtung zur kuehlung der stege zwischen zylindern eines zylinderblocks einer brennkraftmaschine | |
EP0754848B1 (fr) | Moteur à combustion avec la formation d'un mélange interne | |
DE29723356U1 (de) | Kühlkreislauf für eine Brennkraftmaschine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT DE FR GB IT |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): AT DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19851029 |
|
17Q | First examination report despatched |
Effective date: 19860924 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FR GB IT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19871125 |
|
REF | Corresponds to: |
Ref document number: 31105 Country of ref document: AT Date of ref document: 19871215 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3467793 Country of ref document: DE Date of ref document: 19880107 |
|
ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19910117 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19921201 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19930211 Year of fee payment: 10 Ref country code: AT Payment date: 19930211 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19930217 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19940314 Ref country code: AT Effective date: 19940314 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19940314 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19941130 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |