DE2928902C2 - Internal combustion engine - Google Patents
Internal combustion engineInfo
- Publication number
- DE2928902C2 DE2928902C2 DE2928902A DE2928902A DE2928902C2 DE 2928902 C2 DE2928902 C2 DE 2928902C2 DE 2928902 A DE2928902 A DE 2928902A DE 2928902 A DE2928902 A DE 2928902A DE 2928902 C2 DE2928902 C2 DE 2928902C2
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- valve
- internal combustion
- combustion engine
- behind
- 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
- 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)
Description
Die Erfindung bezieht sich auf eine Verbrennungskraftmaschine mit einem Verdichter auf der Gaseinströmseite, einer Turbine auf der Gasabströmseite, die den Verdichter antreibt, einer die Turbine umgehenden Bypass-Leitung und einem Ventil in der Bypass-Leitung, das durch den Druck hinter dem Verdichter oder den Druck in der Abgasleitung vor der Turbine 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 istThe invention relates to an internal combustion engine with a compressor on the gas inflow side, a turbine on the gas downstream side that drives the compressor, one bypassing the turbine Bypass line and a valve in the bypass line, which is activated by the pressure behind the compressor or the Pressure in the exhaust pipe upstream of the turbine is controlled and opens when this pressure is above a first pressure, and which is also controlled by the pressure behind the throttle valve and opens, if this pressure is below a second pressure which is less than the first pressure
Bei einer bekannten Maschine dieser Art (DE-OS 27 16 470) ist kein Schaltmechanismus vorgesehen, mit dem der Einfluß des hinter der Drosselklappe herrschenden Druckes auf das Ventil ausgeschaltet werden kann. Beim Übergang vom Teillastbereich in den Vollastbereich ist demgemäß eine relativ lange Ansprechgeschwindigkeit des Motors gegeben. Das liegt an folgendem: Im Teillastbereich, & h. bei teilweise geöffneter Drosselklappe, ist das Ventil in der Bypass-Leitung geöffnet Die Turbine und damit der Verdichter laufen infolgedessen nicht (In dieser Betriebsweise wird Benzin gespart) Wird nun in den Vollastbereich übergegangen, das Gaspedal also voll durchgetreten, muß das Ventil zunächst geschlossen werden, und die neuen Druckverhältnisse müssen sich aufbauen. Das beansprucht ZeitIn a known machine of this type (DE-OS 27 16 470) no switching mechanism is provided with which eliminates the influence of the pressure prevailing behind the throttle valve on the valve can be. The transition from the partial load range to the full load range is accordingly a relatively long one Response speed of the motor given. This is due to the following: In the partial load range, & h. at partially open throttle valve, the valve in the bypass line is open The turbine and thus the As a result, the compressors do not run (petrol is saved in this operating mode) If the full load range is passed over, i.e. the accelerator pedal is fully depressed, the valve must first be closed and the new pressures have to build up. That takes time
Der Erfindung liegt die Aufgabe zugrunde, die eingangs erwähnte Maschine derart auszubilden, daß der Fahrer beim Obergang vom Teillastbereich in den Vollastbereich auch die Möglichkeit hat, die Ansprechgeschwindigkeit des Motors zu erhöhen.The invention is based on the object of designing the machine mentioned at the outset in such a way that the driver also has the option of adjusting the response speed when transitioning from the partial load range to the full load range of 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 vom Fahrer ausgeschaltet werden kann.This object is achieved in that a switching mechanism is provided with which the Influence of the pressure prevailing behind the throttle valve on the valve is switched off by the driver can be.
Auf diese Weise wird erreicht, daß der Fahrer die Möglichkeit hat, beim Fahren im Teillastbereich die Turbine und den Verdichter mitlaufen zu lassen. Beim Übergang in den Vollastbereich ist dann die Ansprechgeschwindigkeit kürzer als in dem anderen Fall.In this way it is achieved that the driver has the opportunity when driving in the partial load range Allow the turbine and the compressor to run. The response speed is then the transition to the full load range shorter than in the other case.
Eine Weiterentwicklung der Erfindung besteht darin, daß in der Leitung, die den Druck hinter der Drosselklappe zum Ventil überträgt, ein Absperrorgan vorgesehen ist.A further development of the invention is that in the line that the pressure behind the Throttle valve transfers to the valve, a shut-off element is provided.
Schließlich wird als weitere Verbesserung vorgeschlagen, daß das Absperrorgan ein ohnedies vorhandenes Rückschlagventil ist, dessen Ventilkörper in der Schließstellung vom Fahrer blockiert werden kann.Finally, as a further improvement, it is proposed that the shut-off device be an existing one Check valve, the valve body of which can be blocked by the driver in the closed position.
Claims (3)
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 DE2928902A1 (en) | 1981-01-15 |
DE2928902C2 true 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) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3272895D1 (en) * | 1981-09-22 | 1986-10-02 | Bbc 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 |
Family Cites Families (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
Also Published As
Publication number | Publication date |
---|---|
DE2928902A1 (en) | 1981-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |