DE2928902C2 - Internal combustion engine - Google Patents

Internal combustion engine

Info

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
Application number
DE2928902A
Other languages
German (de)
Other versions
DE2928902A1 (en
Inventor
Gerhard Dipl.Ing. 1000 Berlin Schumann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE2928902A priority Critical patent/DE2928902C2/en
Publication of DE2928902A1 publication Critical patent/DE2928902A1/en
Application granted granted Critical
Publication of DE2928902C2 publication Critical patent/DE2928902C2/en
Expired legal-status Critical Current

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

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)

Patentansprüche:Patent claims: 1. Verbrennungskraftmaschine mit einem Verdichter auf der Gaseinströmseite, einer Turbine auf der Gasabströmseite, dk 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 ist, dadurch gekennzeichnet, daß ein Schaltmechanismus vorgesehen ist, mit dem der Einfluß des hinter der Drosselklappe herrschenden Druckes auf das Ventil vom Fahrer ausgeschaltet werden kann.1. Internal combustion engine with a compressor on the gas inflow side, a turbine the gas downstream side, dk drives the compressor, a bypass line bypassing the turbine 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 is, and that is further controlled by the pressure behind the throttle valve and opens when this pressure is below a second pressure, which is less than the first pressure, thereby characterized in that a switching mechanism is provided with which the influence of the behind the Throttle valve pressure prevailing on the valve can be switched off by the driver. 2. Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß in der Leitung, die den Druck hinter der Drosselklappe zum Ventil überträgt, ein Absperrorgan vorgesehen ist2. Internal combustion engine according to claim 1, characterized in that in the line which the Pressure behind the throttle valve transfers to the valve, a shut-off device is provided 3. Verbrennungskraftmaschine nach Anspruch 2, dadurch gekennzeichnet, daß das Absperrorgan ein ohnedies vorhandenes Rückschlagventil ist, dessen Ventilkörper in der Schließstellung vom Fahrer blockiert werden kann.3. Internal combustion engine according to claim 2, characterized in that the shut-off element is a Any non-return valve is present, the valve body of which is in the closed position by the driver can be blocked.
DE2928902A 1979-07-13 1979-07-13 Internal combustion engine Expired DE2928902C2 (en)

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)

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DE (1) DE2928902C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE21728T1 (en) * 1981-09-22 1986-09-15 Bbc Brown Boveri & Cie METHOD FOR CHARGING INTERNAL COMBUSTION ENGINES BY EXHAUST CHARGER WITH VARIABLE EXHAUST GAS ABSORPTION AND INTERNAL COMBUSTION ENGINE WORKING ACCORDING TO THIS METHOD.
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE2928902A1 (en) 1981-01-15

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