DE2037315C

DE2037315C - Reciprocating internal combustion engine with liquid cooling

Info

Publication number: DE2037315C
Application number: DE19702037315
Authority: DE
Inventors: Franz Dr.-Ing. 5070 Bergisch-Gladbach Pischinger
Original assignee: Kloeckner Humboldt Deutz AG
Current assignee: Kloeckner Humboldt Deutz AG
Filing date: 1970-07-28
Publication date: 1973-03-22

Description

Abb. 1 zeigt die Zylinder-Zylinderkopf-Einheit In A b b. 2 ist dieFig. 1 shows the cylinder-cylinder head unit In A b b. 2 is the

einer wassergekühlten Hubkolbenbrennkraftma- dem diese umgebendena water-cooled reciprocating piston engine surrounding them

schine im Längsmittelschuitt; kes 4 dargestellt An den uoerrrnmachine in the longitudinal center section; kes 4 shown at the uoerrrn

Abb.2 zeigt einen Querschnitt durch die Zylin- Kühlflüssigkeit zwischen dem der-Zylinderkopf-Einheit nach Abb. 1, entspre- 5 raum5, der den Zylinder1 umgibt, und dan Kuschend der Linie Π-Π. flüssigkeitsraum 12 im Zy¹»*⁸*^"^^^CS°IFig.2 shows a cross-section through the cylinder coolant between the cylinder head unit according to Fig. 1, corresponding space5, which surrounds the cylinder1, and then the line Π-Π. fluid space 12 in Zy ¹ »* ⁸ * ^" ^^ ^C S ° I

In Abb. 1 ist ein Zylinder 1 mit angegossenem gezeichnet, die die ^^"^SSS^Sk^ In Fig. 1 a cylinder 1 is drawn with a cast, which the ^^ "^ SSS ^ Sk ^

Zylinderkopf 2 dargestellt, der im Zylinderkurbeige- Rückführung der erhitzten *^™g££££j™Cylinder head 2 shown, the return of the heated * ^ ™ g ££££ j ™ in the cylinder crank

hluse 3 in due zylindrische Paßbohrung eingesät Rückführungskanal 18, der im ££25Κ?5Sleeve 3 sown into the cylindrical fitting bore, return channel 18, which is in ££ 25Κ? 5

ist Der Zylinder 1 büdet mit dem Zylinderblock 4 io 12 knapp unterhalb der oberen Be^e^mg^tette 19The cylinder 1 is büdet with the cylinder block 4 io 12 just below the upper bed ^ e ^ mg ^ tette 19

einen Kühlflüssigkeiteraum 5, der durch zwei des Zylinderkopfes 2 beginnt und£atagjtnach_un-a coolant space 5, which begins through two of the cylinder head 2 and £ atagjtnach_un-

O-Ringe 7 gegen das Kurbelgehäuse 6 und einen O- ten führt und in der udotHJ *gg™SO-rings 7 against the crankcase 6 and an O- ten leads and in the udotHJ * gg ™ S

Ring7 nach außen abgedichfet ist Die obere Dicht- fes2 über den Übertritt 17 zum_&^™^¹⁹ Ring7 is sealed to the outside. The upper sealing fes2 via the transition 17 to the _& ^ ™ ^ ¹⁹

stelle 8 liegt in der unteren Hälfte des Zylinderkop- führt Der Ütertritt 17 w,rd du^ emeortüchejort-Point 8 is in the lower half of the cylinder head- leads Der Ütertritt 17 w, rd du ^ emeortüchejort-

fes 2. Sie kann je nach Ausführungsform auch we- 15 setzung der zylindrischen ^Ύ3ατί°™ fes 2. Depending on the embodiment, it can also reinforce the cylindrical ^Ύ3ατί ° ™

sentlich höher liegen, etwa auf halber Höhe oder in reich der Dichtstelle 8 vorgesenenlie significantly higher, about halfway up or in the vicinity of the sealing point 8

der oberen Hälfte des Zylinderkopfes 2. Im oberen ' Spaltbreite ist so abgestimmt^ aao<*the upper half of the cylinder head 2. In the upper 'gap width is matched ^ aao <*

Teil des Kühlflüssigkeitsraumes 5 verläuft von die- gung des Zylinders 1 durch Hemjen «am« und an-Part of the coolant space 5 runs from the end of the cylinder 1 through Hemjen «on» and on

sem getrennt ein eingegossener Rücklaufkanal 9 für dererseits die Kurzschlußstromung im Spalt vernachsem separated a cast return channel 9 for its part the short-circuit current in the gap neglect

die vom Zylinderkopf 2 abfließende heiße Kühlflüs- 20 lässigbar klein istthe hot cooling fluid flowing from the cylinder head 2 is negligibly small

sigkeit. Der Übertritt 17 für die heiße Kühlflüssigkeit Die Lage des Übertritts 17 kann je nach Lage dessweetness. The transition 17 for the hot coolant. The location of the transition 17 can vary depending on the location of the

ist in der A b b. 2 dargestellt. Durch den Kühlflüssig- Rücklaufkanals 9 auch in der oberen_ Hälftedes Z> -is in the A b b. 2 shown. Through the cooling liquid return channel 9 also in the upper half of the Z> -

keitsraum 12 des Zylinderkopfes 2 ist eine Einspritl iinderkopfes 2 liegen. D>e Querschnittsbemessung deKeitsraum 12 of the cylinder head 2 is a Einspritl iinderkopfes 2 lie. The cross-section dimensioning de

düse 10 geführt, die durch eine dünnwandige Hülse von oben nach unten fallenden Rudduhrungskanalsnozzle 10 out, the Rudduhrungskanals falling through a thin-walled sleeve from top to bottom

11 von dem Kühlflüssigkeitsraum 12 getrennt ist. Um »₅ 18 ist so abgestimmt, daß ^" *w„ S^11 is separated from the cooling liquid space 12. To _"5 18 is tuned so that ^" * w "S ^

eine intensive Kühlung zu erreichen, wird die von Gas- oder Luftblasen, die sich im oberen leil desIntensive cooling is achieved by gas or air bubbles in the upper part of the

dem Kühlflüssigkeitsraum 5 zum Zvlinderkopf 2 flie Kühlflüssigkeitsraumes 12 absetzen, ^mitrei^·from the coolant space 5 to the cylinder head 2, set the coolant space 12 down, ^{with it} ^ ·

ßende Kühlflüssigkeit durch Übertrittsstellen 13 und Wenn im vorliegenden Beispiel davon ausgegangenßende coolant through transfer points 13 and if assumed in the present example

Kanäle 14 den heißesten Stellen im Zylinderkopf 2 wurde, daß das ^Zy^U"^der _c ^k"^rbi^seha"^S _p ^e _n ³ _n ^w¹'⁸ Channels 14 the hottest spots in the cylinder head 2 was that the ^Z y ^U " ^der _c ^k " ^rb i ^seha " ^S _p ^e _n ³ _n ^ w ¹ ' ⁸

zugeführt. Die heißesten Stellen sind erfahrungsge- 30 ausgeführt war, so gilt die Erfindung eoenso rar Mamäß die Stege 15 zwischen den Ventilen und der Ein- schinengehäuse, bei denen das Kurbeigehause undfed. The hottest spots are based on experience, so the invention is so rare the webs 15 between the valves and the single-rail housing, in which the crankcase and

spritzdüse 10 und deren Umgebung. · der Zylinderblock als einzelne Teile ausgebildet sind.spray nozzle 10 and its surroundings. · The cylinder block is designed as individual parts.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Insert cylinder crankcase. This design of the cylinder / cylinder head unit, which is one part of the patent claims, makes it unnecessary to seal the combustion chamber

1. Reciprocating internal combustion engine with liquid - the cooling liquid, however, remains the necessity of cooling, in which sealing points of the cooling fluid spaces are inserted into the cylinder block at the inlet and outlet as well as the cylinder-cylinder head units. In the case of the absind, which together with the cylinder block between the cooling liquid, preferably from the highest of an upper and lower sealing point to a first point of the cylinder head, the result is the. Büden emergency coolant space, characterized by the ability to designate an individual cylinder head for each cylinder head, to be provided in the upper part of the cylinder or to connect the individual cylinder cylinder blocks (4) to one another below the upper sealing heads and from an end point (8) a return duct (9) for the cooling fluid cylinder to supply the cooling fluid to the radiator, fluid is arranged in which these sealing points in the same area AUe are expensive and can lead to malfunctions from the cylinder head (2) to the return duct (9) due to leaks,
leading return channel (18) opens, where the cylinder block (4) and the cylinder cylinder of a liquid-cooled internal combustion engine, the cylinder head unit in the area of the transition (17) to guide the coolant that the return channel (18) forms a narrow, as few sealing points as possible, over-sealing area to be sealed. Steps and pipe connections result. This

2. Reciprocating internal combustion engine according to anao task is the objection in an internal combustion engine 1, characterized in that the type of return described is achieved in that in the upper guide channel (18) from one point only a little bit lower part of the cylinder block, below the upper part below the upper limit of the cylinder sealing point a return channel for the coolant head (2) goes out and is arranged at about half the height of the, in the same area from the Zv cylinder head (2) in the return channel (9) 25 Linderkopf leading to the return channel return flows. channel opens, the cylinder block and the

Cylinder-cylinder-head unit in the area where the return duct crosses a narrow sealing

form area.

30 By including the return channel and the transition point to this into the coolant space, the otherwise usual seal can be omitted. the

The invention relates to a reciprocating piston combustion power- the transition point forming gap is so dimensioned machine with liquid cooling, in which units are used in the sen that on the one hand no obstruction of the freely expanding cylinder block one-piece cylinder-cylinder-head unit enters 35, which, together with the cylinder head and, on the other hand, the short cylinder head that is possible across the gap between an upper and lower sealing flow, is negligibly small.
make a coolant space. The one limited to special transfer points

In the case of multi-cylinder internal combustion engines, in particular, the coolant can flow into the cylinder head in machines that use modular lighting to specifically cool the hottest spots in principle to a series with different cylinders - the web areas between the valves and the number are built up, the suspension of the machine is the injection nozzle and thus a controlled coolant individual exchangeable assemblies very useful flow in the cylinder head. For further guidance This is because it involves the manufacture, assembly, flow of coolant in the cylinder head and maintenance and spare parts inventory simplified. The special 45 passage into the return channel is preloaded It is advantageous for those based on a modular system that the return channel only comes from one point machines built on the principle of principle, the entire cylinder a little below the upper limit of the cylinder unit, consisting of cylinder and cylinder head and about halfway up the head to be designed as an interchangeable assembly. In the case of the cylinder head, it opens into the return duct. Here multi-cylinder machines the individual 50 at is the falling return channel in the transverse cylinder units in a row next to each other cut so dimensioned that there is a flow Crankcase put on. Such a construction speed adjusts at the small steam or In air-cooled internal combustion engines, gas bubbles that are located at the highest point in the cylinder have developed. drop the lindenkopf, be carried away. Through this

For water-cooled machines Aufglie- leads 55 flow rate are also gas and alterations in single-cylinder units, each with a vapor bubbles which have settled when the machine is in a cylinder surrounding water jacket to cylinder head, gradually degraded, larger cylinder intervals as they in the known Due to the position of the transition point to the return conduit block construction, it is common, and thus to an essential part within the two sealing points, that the cooling requires larger structural volume and weight. Likewise, 60 limit the liquid space, the single cylinder unit with single water way is advantageously saved another sealing point, so that the jacket connections for the cooling water supply and discharge cooling liquid supply within the two in the same way as the sealing of the individual cooling water conventionally designed sealing points lies, spaces and the combustion chamber, with which a row delimits the coolant space. This results in sealing points that are prone to failure. 6 ₅ , the cooling liquid supply and discharge is restricted

In the case of liquid-cooled two-stroke reciprocating pistons, there are only two connection points on the cylinder jacket, benbrennkraftmaschinen known, the cylinder with In the drawing is an embodiment of the

to run the cylinder head in one piece and shown in an invention.