DE2928902A1 - Vehicle IC engine with turbocharger - has manual control to give choice of turbocharger control modes for different driving conditions - Google Patents
Vehicle IC engine with turbocharger - has manual control to give choice of turbocharger control modes for different driving conditionsInfo
- Publication number
- DE2928902A1 DE2928902A1 DE19792928902 DE2928902A DE2928902A1 DE 2928902 A1 DE2928902 A1 DE 2928902A1 DE 19792928902 DE19792928902 DE 19792928902 DE 2928902 A DE2928902 A DE 2928902A DE 2928902 A1 DE2928902 A1 DE 2928902A1
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- valve
- compressor
- turbine
- opens
- 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.)
- Granted
Links
Classifications
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Description
Gerhard. Schumann 1258/17.542 DEGerhard. Schumann 1258 / 17.542 DE
"Verbrennungskraftmaschine""Internal combustion engine"
Das Hauptpatent ... (Anmeldung P 29 26 917.8) bezieht sich auf eine Verbrennungskraftmaschine mit einem Verdichter auf der Gaseinströmseite, einer Turbine auf der Gasabströmseite, die den Verdichter antreibt, einer dLe Turbine umgehenden Bypass-Leitung und einem Ventil in der Bypass-Leitung, das durch den Druck hinter dem Verdichter gesteuert wird und öffnet, wenn dieser Druck oberhalb eines ersten Druckes liegt, und das ferner durch den Druck hinter der Drosselklappe gesteuert wird und öffnet, wenn dieser Druck unterhalb eines zweiten Druckes liegt, der kleiner als der erste Druck ist.The main patent ... (Application P 29 26 917.8) relates to an internal combustion engine with a compressor the gas inlet side, a turbine on the gas outlet side, which drives the compressor, bypassing a dLe turbine Bypass line and a valve in the bypass line, the is controlled by the pressure behind the compressor and opens when this pressure is above a first pressure is, and which is further controlled by the pressure behind the throttle valve and opens when this pressure is below of a second pressure that is less than the first pressure.
Die Einwirkung des Druckes hinter der Drosselklappe auf das Ventil bringt den Vorteil mit sich, daß der Motor (im Teillastbereich) wirtschaftlicher arbeitet, hat aber den Nachteil, daß der Motor in seinem dynamischen Verhalten unter gewissen Umständen schlechter ist als ein Motor ohne diese Einwirkung.The effect of the pressure behind the throttle valve on the valve has the advantage that the engine (in the partial load range) works more economically, but has the disadvantage that the engine in its dynamic behavior under under certain circumstances is worse than an engine without this influence.
Der Erfindung liegt die Aufgabe zugrunde, das dynamische Verhalten des Motors zu verbessern.The invention is based on the object of the dynamic behavior to improve the engine.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein Schaltmechanismus vorgesehen ist, mit dem der Einfluß des hinter der Drosselklappe herrschenden Druckes auf das Ventil ausgeschaltet werden kanno This object is achieved according to the invention in that a switching mechanism is provided with which the influence of the pressure prevailing behind the throttle valve on the valve can be switched off, o
Der Fahrer kann nun, z.B« bei konstanten Autobahnfahrten, wirtschaftlich fahren, indem er die Verbindung, welche die bewußte Einwirkung ermöglicht, einschaltet. Will er hingegen sportlich fahren, also häufig stark beschleunigen,The driver can now, e.g. drive economically by switching on the connection that enables conscious influence. On the other hand, he wants drive sporty, i.e. often accelerate strongly,
_ 5 _ Q30063/0644_ 5 _ Q30063 / 0644
INg. MANFRED BONINQ *ITEINg. MANFRED BONINQ * ITE
DIPL.-INQ. DIETER JANDER DR.-INQ. MANFRED BONINQ PATENTANWAITEDIPL.-INQ. DIETER JANDER DR.-INQ. MANFRED BONINQ PATENT ANWAITE
schaltet er diese Verbindlang aus. Beim Beschleunigen mit völlig geöffneter Drosselklappe entfallen dann gewisse Vorgänge (insbesondere muß nicht erst das Ventil geschlossen werden). Die Turbine ist somit früher auf Touren.he turns this connection off. When accelerating with the throttle valve fully open, certain factors are then omitted Processes (in particular, the valve does not have to be closed first). The turbine is therefore up to speed earlier.
Eine Weiterentwicklung der Erfindung besteht darin, daß eine mit einer Drossel versehene BelüftungieiturgfUr den Raum zwischen dem Rückschlagventil und dem Bypass-Ventil vorgesehen ist, die insbesondere mit der Leitung vor dem Verdichter verbunden ist. Auf diese Weise wird erreicht, daß sich ein Unterdruck in dem Raum zwischen dem Rückschlagventil und dem Bypass-Ventil abbauen kann, so daß das Bypass-Ventil wieder schließen kann.A further development of the invention consists in the fact that a ventilation device provided with a throttle is provided for the Space is provided between the check valve and the bypass valve, in particular with the line upstream of the compressor connected is. In this way it is achieved that there is a negative pressure in the space between the check valve and the bypass valve can be reduced so that the bypass valve can close again.
Die vorliegende Erfindung wie auch die der Hauptanmeldung ist bei jeder Art von Motoren mit Drosselklappe anwendbar, also auch bei Dieselmotoren mit Drosselklappe.The present invention, as well as that of the main application, is applicable to any type of engine with a throttle valve, thus also with diesel engines with throttle valve.
Natürlich muß das Bypass-Ventil nicht durch den hinter der Drosselklappe herrschenden Druck direkt angesteuert werden. Es ist auch denkbar, daß das Bypass-Ventil durch ein Servo-System, auf elektrischem Wege od.dgl. betätigt wird. Eine solche Betätigung könnte sich beispielsweise dann empfehlen, wenn die Feder des Bypass-Ventils sehr kräftig ist, so daß der Unterdruck nicht ausreicht, um den Ventilkörper zu verstellen. Andererseits könnte man auch die auf den Ventilkörper wirkenden Kräfte dadurch variieren, daß man dessen wirksame Flächen unterschiedlich groß macht, beispielsweise also die Fläche, auf die der Unterdruck wirkt, größer gestaltet als diejenige, auf die der Überdruck wirkt. Eine Verkleinerung der wirksamen Ventilkörperfläche kann man beispielsweise durch Vergrößerung des Ventilschaftes erreichen.Of course, the bypass valve does not have to be activated directly by the pressure prevailing behind the throttle valve. It is also conceivable that the bypass valve is operated by a servo system, by electrical means or the like. is operated. Such an activity could be recommended, for example, when the spring of the bypass valve is very strong, so that the negative pressure is not sufficient to adjust the valve body. On the other hand, one could also vary the forces acting on the valve body by changing the effective Makes areas different in size, for example, the area on which the negative pressure acts is made larger than the one on which the overpressure acts. A reduction in the effective valve body area can be achieved, for example by enlarging the valve stem.
Die Erfindung, und zwar die vorliegende wie auch die der Hauptanmeldung, ist auch dann anwendbar, wenn die Drossel vor dem Verdichter liegt.The invention, namely the present as well as that of the main application, is also applicable when the throttle in front of the compressor.
- 6 030063/0644 - 6 030063/0644
DlPL-INtJ. DIETER JANDER DR.-INQ. MANFRED BONINQ PAIfNTANWALTfDlPL-INtJ. DIETER JANDER DR.-INQ. MANFRED BONINQ PAIfNTANWALTf
Selbstverständlich bezieht sich die Erfindung (wie auch diejenige der Hauptanmeldung) auch auf solche Motoren, bei denen als erster Druck der Druck in der Abgasleitung genommen wird.Of course, the invention (like that of the main application) also relates to motors at which the pressure in the exhaust pipe is taken as the first pressure.
Bin wesentlicher weiterer Vorteil des Gegenstandes der Erfindung (wie auch desjenigen der Hauptanmeldung) besteht darin, daß vermieden wird, daß die Turbine^ leistet, wenn, ausgehend vom Vollast-Fall (Drossel offen), die Drossel in Richtung Schließstellung bewegt und kurz darauf wieder geöffnet wird, wie es beim Schalten der Fall ist.Am an essential further advantage of the subject matter of the invention (as well as that of the main application) is that it is avoided that the turbine ^ performs when, starting from the full load case (throttle open), the throttle moves in the direction of the closed position and briefly is then reopened, as is the case when switching.
DJsLMDJsLM
030063/0644030063/0644
Claims (7)
*) P1 > P2>P0 . P3> P2 und in folgenden Fällen geschlossen ist:a) P 1 ) P 2 <P O
*) P 1 > P 2 > P 0 . P 3 > P 2 and is closed in the following cases:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2928902A DE2928902C2 (en) | 1979-07-13 | 1979-07-13 | Internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2928902A DE2928902C2 (en) | 1979-07-13 | 1979-07-13 | Internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2928902A1 true DE2928902A1 (en) | 1981-01-15 |
DE2928902C2 DE2928902C2 (en) | 1982-07-29 |
Family
ID=6075965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2928902A Expired DE2928902C2 (en) | 1979-07-13 | 1979-07-13 | Internal combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2928902C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3203805C1 (en) * | 1982-02-04 | 1983-04-14 | Bayerische Motoren Werke AG, 8000 München | Boost pressure control device for internal combustion engines |
EP0075360B1 (en) * | 1981-09-22 | 1986-08-27 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Supercharging process for internal-combustion engines by a turbocharger with variable exhaust swallow capacity, and internal-combustion engine working according to this process |
DE102011118153A1 (en) * | 2011-11-10 | 2013-05-16 | Gm Global Technology Operations, Llc | Control device i.e. electronic controller, for controlling exhaust-gas turbocharger of loading air compressor utilized for compressing fresh air in petrol engine, has actuator controlling bypass flap in partial load operation of engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2716470A1 (en) * | 1977-04-14 | 1978-10-19 | Daimler Benz Ag | COMBUSTION ENGINE WITH AN EXHAUST GAS TURBOCHARGER |
-
1979
- 1979-07-13 DE DE2928902A patent/DE2928902C2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2716470A1 (en) * | 1977-04-14 | 1978-10-19 | Daimler Benz Ag | COMBUSTION ENGINE WITH AN EXHAUST GAS TURBOCHARGER |
Non-Patent Citations (1)
Title |
---|
DE-Z: MTZ Motortechnische Zeitschrift, 40, 1979, 3, S. 109-111 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075360B1 (en) * | 1981-09-22 | 1986-08-27 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Supercharging process for internal-combustion engines by a turbocharger with variable exhaust swallow capacity, and internal-combustion engine working according to this process |
DE3203805C1 (en) * | 1982-02-04 | 1983-04-14 | Bayerische Motoren Werke AG, 8000 München | Boost pressure control device for internal combustion engines |
DE102011118153A1 (en) * | 2011-11-10 | 2013-05-16 | Gm Global Technology Operations, Llc | Control device i.e. electronic controller, for controlling exhaust-gas turbocharger of loading air compressor utilized for compressing fresh air in petrol engine, has actuator controlling bypass flap in partial load operation of engine |
Also Published As
Publication number | Publication date |
---|---|
DE2928902C2 (en) | 1982-07-29 |
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OAP | Request for examination filed | ||
OD | Request for examination | ||
D2 | Grant after examination | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |