DE891361C - Internal combustion engine operating in a two-stroke or four-stroke cycle, especially a diesel engine, with an additional device for drawing compressed air from the working cylinder of the machine - Google Patents
Internal combustion engine operating in a two-stroke or four-stroke cycle, especially a diesel engine, with an additional device for drawing compressed air from the working cylinder of the machineInfo
- Publication number
- DE891361C DE891361C DED2302D DED0002302D DE891361C DE 891361 C DE891361 C DE 891361C DE D2302 D DED2302 D DE D2302D DE D0002302 D DED0002302 D DE D0002302D DE 891361 C DE891361 C DE 891361C
- Authority
- DE
- Germany
- Prior art keywords
- compressed air
- stroke
- pressure
- internal combustion
- air
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/04—Conversion of internal-combustion engine cylinder units to pumps
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Description
Im Zweitakt oder Viertakt arbeitende Brennkraftmaschine, insbesondere Dieselmaschine mit einer zusätzlichenVorrichtung zur Druckluftentnahme aus dem Arbeitszylinder der Maschine Die Erfindung bezieht sich auf eine im Zweitakt oder Viertakt arbeitende BrennkraStmaschine, insbesondere Dieselmaschine, mit einer zusätzlichen Vorrichtung zur Druckluftentnahnie aus dem Arbeitszylinder der Maschine, beispielsweise für ein Druckluftbremssyste#m für Kraftfahrzeuge, wobei das Luftentnahmeventil durch einen vom Motor angetriebenen umlaufenden Nocken über eine Stoßstange gesteuert wird und die Luftentnahme in Abhängigkeit von dem im aufzuladenden System herrschenden Luftdruck erfolgt, bis ein bestimmter Höchstdruck im Druckluftspeicher erreicht ist, nach dessen Überschreiten die Luftentnahme unterbrochen wird:. Erfindungsgemäß besteht die Steuervorrichtung für den aufzuladenden Drucklilftspeicher aus mehreren, z. B. zwei Druckkammern, die hintereinander angeordnet sind. Ein auf diese Weisee hergestellter Steuerschieber fällt erheblich kleiner, und leichter aus als ein Steuerschieber mit ungeteilter Kammer. Dadurch wird es auch möglich, den Steuerschieber mit den Druckkammern im oder am Zylinderkopf in unmittelbarer Nähe des Luftentnahmeventils anzuordnen.Internal combustion engine operating in two-stroke or four-stroke, in particular Diesel machine with an additional device for drawing compressed air from the working cylinder of the machine The invention relates to a two-stroke or four-stroke working Internal combustion engine, in particular a diesel engine, with an additional device to extract compressed air from the working cylinder of the machine, for example for a compressed air brake system for motor vehicles, with the air extraction valve through a rotating cam driven by the motor is controlled by a bumper and the air extraction depending on the system to be charged Air pressure takes place until a certain maximum pressure is reached in the compressed air reservoir is, after which the air extraction is interrupted :. According to the invention the control device for the compressed air storage to be charged consists of several, z. B. two pressure chambers which are arranged one behind the other. One this way Manufactured control spool is considerably smaller and lighter than a control spool with undivided chamber. This also makes it possible to use the control slide with the Pressure chambers in or on the cylinder head in the immediate vicinity of the air extraction valve to arrange.
Weitere Einzelheiten der Erfindung sind aus der nachstehenden Beschreibung zu ersehen. In der Zeichnung ist eine Ausführungsform des Erfindungsgegenstands schematisch dargestellt. Es zeigt Abb. i die Gesamtanordnung des Motors samt Druckluftbehälter und Aufladeeinrichtung, Abb. 2 den als druckluftgesteuertes Schaltglied ausgebildeten Teil der Stoßstange in größerem Ma,ßstab, Abb. 3 im Schnitt einen Teil des Zylinderkopfes mit Rückschlagventil.Further details of the invention can be seen from the description below. An embodiment of the subject matter of the invention is shown schematically in the drawing. It shows Fig. I the overall arrangement of the engine including the compressed air tank and charging device, Fig. 2 the part of the bumper designed as a compressed air-controlled switching element on a larger scale, Fig. 3 in section a part of the cylinder head with non-return valve.
Der Verdichtungsraum im Arbeitszylinder d der Brennkraf tmaschine a steht über die Leitung 1 mit dem Druckluftspeicher m in Verbindung, sobald das durch die Feder 13 geschlossen gehaltene Luftentnahmeventil h von dem auf der Nockenwelle c sitzenden Nocken u über die Stoßstange 26, 15 und den z-weiarmigen Schwinghebel 16 geöffnet wird.The compression chamber in the working cylinder d of the internal combustion engine a is connected to the compressed air reservoir m via the line 1 as soon as the air extraction valve h, which is held closed by the spring 13 , is removed from the cam u sitting on the camshaft c via the push rod 26, 15 and the z- white-armed rocker arm 16 is opened.
Am Druckluftspeicher m sitzt ein Gehäuso:23, an dein eine zu zwei Druckkammern 322, 39'führ;ende Leitu,ng:2:z angeschlossen ist. Die Leitung:2:2 ist vom Druckluftspeicher m durch ein Rückschlagventil:24 abgesperrt, das durch eine Feder 25 belastet ist. Das Rückschlagventil kann auch an einer anderen Stelle angeordnet werden, z. B. am Zylinderkopf, so daß es den Druckkamm-ern unmittelbar vorgeschaltet ist. Diese Anordnung des Rückschlags Ventils 48 zeigt Abb. 3. A housing 23 is located on the compressed air reservoir m, to which one of the two pressure chambers 322, 39 'leading to a line 2: z is connected. The line: 2: 2 is shut off from the compressed air reservoir m by a check valve: 24 which is loaded by a spring 25. The check valve can also be arranged at a different location, e.g. B. on the cylinder head, so that it is connected directly upstream of the pressure chambers. This arrangement of the non-return valve 48 is shown in FIG. 3.
Die von dem Nocken u bewegte Stoßstange besteht aus einem oberen Teil 15 und einem unteren Teil 2,6, der unter der Wirkung einer F#ader:2;7 steht, die das Bestreben hat, den Teil .26 vom Nocken u abzuheben.The bumper moved by the cam u consists of an upper part 15 and a lower part 2, 6, which is under the action of a thread: 2; 7, which tends to lift the part .26 from the cam u.
Die unter dem Druck im Druckluftspeicher m stehende Steuervorrichtung ist beispielsweise in den Zylinderkopf des Motors eingebaut. Den oberen Abschluß des Steßstangenteils 15 bildet ein als Steuerschieber dienender Kolben 28, der in dem Zylinder:29 der Druckkammer 3:2 geführt ist. Die Stange 15 ist dabei von einem Einsatzstück 30 geführt, das zusammen mit dem Kolben 28 und der Innenwand des Zylinders 29 die eine Druckkammer 3i2 bildet. In entsprechenden Ausdrehungen des Einsatzstückes 30 und des Kolbens 28 sind Dichtungen 33 aus z. B. synthetischem Kautschuk angedeutet. Gegen ein Verschieben nach unten ist das Einsatzstück 3o durch einen federnden Ring 3 1 oder in sonst bekannter Art gesichert. Durch eine Öffnung 34 strömt die durch die Leitung 22 zugeführte D#ruckluft ein.The control device under pressure in the compressed air reservoir m is built into the cylinder head of the engine, for example. The upper end of the push rod part 15 is formed by a piston 28 which serves as a control slide and which is guided in the cylinder: 29 of the pressure chamber 3: 2. The rod 15 is guided by an insert 30 which, together with the piston 28 and the inner wall of the cylinder 29, forms a pressure chamber 3i2. In corresponding recesses of the insert 30 and the piston 28 , seals 33 from z. B. indicated synthetic rubber. Against shifting down the insert piece is secured by a 3o f Eder evident ring 3 1 or in any other known type. The compressed air supplied through line 22 flows in through an opening 34.
In dein Verbindungsstück 37 zwischen Zylinder 29 und Zylinder 38 ist die Kolbenstange 35 eines Kolbens 36 geführt. Der Kolben 36, die Innenwand des Zylinders 38 und das Verhindungsstück 37 bilden die zweite Druckkammer 39, die durch eine Öffnung 40 mit der Leitung 22 in Verbindung steht.. Durch die Bohrungen 41 und 42 in der Kolbenstange 35 wird der Druck der über den Kolben 28 und 36 in den Zylindern 2-9 und 38 befindlichen Räume 43 und 44 ausgeglichen. Der Kolben 36 steht unter der Wirkung einer im Raum 44 vorgesehenen Feder 45, die bestrebt ist, die Kolben 36, 2-8 nach unten zu drücken, so daß das untere Ende der Stoßstange is, 26 in Berührung mit dem Steuernocken u steht. Der Zylinder 38 ist oben durch einen Stopfen 46 verschlossen, der durch die Feder 45 gegen einen federnden Ring 47 =gepreßt wird. An den Stopfen 46 legt sich der zweiarmige Schwinghebel 16 an.The piston rod 35 of a piston 36 is guided in your connecting piece 37 between cylinder 29 and cylinder 38. The piston 36, the inner wall of the cylinder 38 and the prevention piece 37 form the second pressure chamber 39, which is in communication with the line 22 through an opening 40. Through the bores 41 and 42 in the piston rod 35 , the pressure over the piston 28 and 36 in the cylinders 2-9 and 38 located spaces 43 and 44 balanced. The piston 36 is under the action of a spring 45 provided in the space 44, which tends to push the pistons 36, 2-8 downward so that the lower end of the push rod is, 26 in contact with the control cam u. The cylinder 38 is closed at the top by a plug 46 which is pressed by the spring 45 against a resilient ring 47 =. The two-armed rocking lever 16 rests against the plug 46.
Die Vorrichtung arbeitet folgendermaßen: Sobald in den Kammern 32 und 3,9 der Druck der Steuerluft auf die Kolben 28 und 36 den Druck der Feder 45 überwindet, werden die Kolben 36 und:28 angehoben, die Feder :27 drückt die Stoßstange 15, .26 nach oben und hebt sie vom Nocken u ab. Nun bleibt - das Luftentnahmeventil b geschlossen, und der Luftzustrom in den Druckluftspeicher m hört auf.The device works as follows: As soon as the pressure of the control air on the pistons 28 and 36 overcomes the pressure of the spring 45 in the chambers 32 and 3.9 , the pistons 36 and: 28 are raised, the spring: 27 pushes the push rod 15,. 26 up and lifts it off the cam u. Now remains - the air extraction valve b closed and the air flow into the compressed air reservoir m stops.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED2302D DE891361C (en) | 1940-11-01 | 1940-11-01 | Internal combustion engine operating in a two-stroke or four-stroke cycle, especially a diesel engine, with an additional device for drawing compressed air from the working cylinder of the machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED2302D DE891361C (en) | 1940-11-01 | 1940-11-01 | Internal combustion engine operating in a two-stroke or four-stroke cycle, especially a diesel engine, with an additional device for drawing compressed air from the working cylinder of the machine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE891361C true DE891361C (en) | 1953-09-28 |
Family
ID=7029839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED2302D Expired DE891361C (en) | 1940-11-01 | 1940-11-01 | Internal combustion engine operating in a two-stroke or four-stroke cycle, especially a diesel engine, with an additional device for drawing compressed air from the working cylinder of the machine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE891361C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3620776A1 (en) * | 1985-06-29 | 1987-01-08 | Volkswagen Ag | Device for supplying pressure to pneumatically operated servo systems |
CN104100326A (en) * | 2013-04-09 | 2014-10-15 | 曼卡车和巴士奥地利股份公司 | Device for conveying compressed air for devices in motor vehicles operated by compressed air |
-
1940
- 1940-11-01 DE DED2302D patent/DE891361C/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3620776A1 (en) * | 1985-06-29 | 1987-01-08 | Volkswagen Ag | Device for supplying pressure to pneumatically operated servo systems |
CN104100326A (en) * | 2013-04-09 | 2014-10-15 | 曼卡车和巴士奥地利股份公司 | Device for conveying compressed air for devices in motor vehicles operated by compressed air |
AT514127A1 (en) * | 2013-04-09 | 2014-10-15 | MAN Truck & Bus Österreich AG | Device for conveying compressed air for compressed air operated equipment in motor vehicles |
EP2789853A1 (en) * | 2013-04-09 | 2014-10-15 | MAN Truck & Bus Österreich AG | Device for conveying compressed air for devices in motor vehicles operated by compressed air |
AT514127B1 (en) * | 2013-04-09 | 2015-02-15 | MAN Truck & Bus Österreich AG | Device for conveying compressed air for compressed air operated equipment in motor vehicles |
US9708943B2 (en) | 2013-04-09 | 2017-07-18 | Man Truck & Bus Oesterreich Ag | Device for delivering compressed air for pneumatically operated equipment in motor vehicles |
CN104100326B (en) * | 2013-04-09 | 2018-03-20 | 曼卡车和巴士奥地利股份公司 | For the device to the pneumatic operation type equipment conveying compressed air in motor vehicles |
RU2676928C2 (en) * | 2013-04-09 | 2019-01-11 | МАН Трак унд Бас Эстеррайх АГ | Device for supply of compressed air to pneumatic devices in cars |
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