DE3623159A1 - Method for utilising stored compressed air, generated by braking energy, as combustion air for internal combustion engines in motor vehicles - Google Patents

Method for utilising stored compressed air, generated by braking energy, as combustion air for internal combustion engines in motor vehicles

Info

Publication number
DE3623159A1
DE3623159A1 DE19863623159 DE3623159A DE3623159A1 DE 3623159 A1 DE3623159 A1 DE 3623159A1 DE 19863623159 DE19863623159 DE 19863623159 DE 3623159 A DE3623159 A DE 3623159A DE 3623159 A1 DE3623159 A1 DE 3623159A1
Authority
DE
Germany
Prior art keywords
air
compressed air
internal combustion
generated
motor vehicles
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.)
Ceased
Application number
DE19863623159
Other languages
German (de)
Inventor
Duis Peter Dipl Ing Ter
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.)
Ter Duis peter dipl-Ing
Original Assignee
Ter Duis peter dipl-Ing
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 Ter Duis peter dipl-Ing filed Critical Ter Duis peter dipl-Ing
Priority to DE19863623159 priority Critical patent/DE3623159A1/en
Publication of DE3623159A1 publication Critical patent/DE3623159A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
    • F01B17/02—Engines
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • F02B33/446—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs having valves for admission of atmospheric air to engine, e.g. at starting
    • 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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake

Abstract

In braking, a proportion of the braking energy is converted into pneumatic energy by means of an air compressor and collected in a compressed air reservoir. When starting or accelerating, the compressed air flows out of the pressure reservoir of the internal combustion engine as precompressed combustion air.

Description

Verfahren zur Nutzung von durch Bremsenergie erzeugten und ge­ speicherten Druckluft als Verbrennungsluft für Verbrennungs­ kraftmaschinen in Kraftfahrzeugen.Method for using braking energy generated and ge stored compressed air as combustion air for combustion engines in motor vehicles.

Beim Bremsen von Fahrzeugen geht normalerweise die Bremsenergie vollständig verloren.When braking vehicles, the braking energy normally goes off completely lost.

Daher sind bereits Vorschläge gemacht worden, die Bremsenergie mechanisch, elektrisch, hydraulisch oder pneumatisch zu speichern, und sie beim Anfahren über verschiedene Antriebssysteme dem Fahrzeug zur Beschleunigung wieder zurückzuführen.Therefore, proposals have already been made for braking energy store mechanically, electrically, hydraulically or pneumatically, and the vehicle when moving off using various drive systems Acceleration again.

Bei elektrischen Fahrzeugantrieben ist die Rückführung noch einfach, weil der E-Motor als Generator betrieben werden kann.With electric vehicle drives, the feedback is still easy, because the electric motor can be operated as a generator.

Bei pneumatischer Bremsenergieumwandlung und Speicherung ist die Rückführung der Druckluftenergie in kinetische Energie doch recht aufwendig.With pneumatic brake energy conversion and storage, the Return of the compressed air energy to kinetic energy is quite right complex.

Ziel dieser Erfindung ist es, die als Druckluft gespeicherte Brems­ energie als vorkomprimierte Verbrennungsluft für die Verbrennungs­ kraftmaschine des Kraftfahrzeuges zu nutzen.The aim of this invention is the brake stored as compressed air energy as pre-compressed combustion air for combustion to use the engine of the motor vehicle.

Die Vorteile einer Verbrennungsluftbeladung sind bei der Nutzung von Turboladern hinreichend bekannt geworden.The advantages of a combustion air loading are when using Turbochargers have become well known.

Außerdem geschied bei Fahrzeugen mit Verbrennungskraftmaschinen das Beschleunigen unter Luftmangel. Durch die erfindungsgemäße Nutzung von beim Bremsen erzeugte Druckluft als Verbrennungsluft, kann nun ein günstigeres höheres Luft/Kraftstoff-Verhältnis eingestellt werden.This also happened in vehicles with internal combustion engines Accelerate under lack of air. Through the use of Compressed air generated during braking as combustion air can now be more favorable higher air / fuel ratio can be set.

Vorteile dieser Erfindung sind:Advantages of this invention are:

  • 1) Kraftstoffeinsparung1) Fuel savings
  • 2) Verringerung der Schadstoffe im Abgas beim Beschleunigen2) Reduction of pollutants in the exhaust gas when accelerating
  • 3) Besseres Fahrverhalten, höhere Beschleunigung ohne Kraftstoffmehr­ verbrauch3) Better driving behavior, higher acceleration without more fuel consumption

Zwei Ausführungsbeispiele mit den wesentlichen Merkmalen dieser Erfindung sind im Bild 1 und Bild 2 dargestellt.Two exemplary embodiments with the essential features of this invention are shown in Figure 1 and Figure 2.

In Bild 1 saugt der durch den Bremsvorgang angetriebene Luftverdichter die Verbrennungsluft über einen Luftfilter an. Die komprimierte Luft wird mit Hilfe der Rückschlagklappe vor dem Druckluftspeicher (in der Zeichnung Luftdruckspeicher genannt) und der im Leerlauf geschlossenen Klappe nach dem Speicher gesammelt. Die benötigte Verbrennungsluft wird weiterhin über das bestehende Ansaugsystem gefördert. Erst beim Anfahren oder Beschleunigen wird die Klappe hinter dem Druckluftspeicher geöffnet. Die gespeicherte Druckluft strömt dann über die Saugleitung der Verbrennungskraftmaschine zu.In Figure 1, the air compressor driven by the braking process draws the combustion air through an air filter. The compressed air is collected with the help of the non-return flap in front of the compressed air accumulator (called air pressure accumulator in the drawing) and the flap closed after idling. The required combustion air continues to be conveyed through the existing intake system. The flap behind the compressed air reservoir is only opened when starting off or accelerating. The stored compressed air then flows in via the suction line of the internal combustion engine.

In Bild 2 ist der Druckluftspeicher direkt in die Saugleitung eingebaut. Um zu verhindern, daß schon im Leerlauf komprimierte Luft verwendet wird, ist ein Bypaß für den Leerlauf vorgesehen. Die Klappe hinter dem Druckluftspeicher öffnet auch hier erst beim Anfahren oder Beschleunigen.In Figure 2, the compressed air reservoir is built directly into the suction line. In order to prevent compressed air from being used even when idling, a bypass is provided for idling. Here, too, the flap behind the compressed air accumulator only opens when starting off or accelerating.

Mach Verbrauch der Druckluft wird bei dieser Version die weitere Verbrennungsluft über den Druckspeicher angesaugt.Mach consumption of compressed air is the further with this version Combustion air sucked in via the pressure accumulator.

Claims (7)

1. Verfahren zur Nutzung von durch Bremsenergie erzeugten und ge­ speicherten Druckluft bei Kraftfahrzeugen dadurch gekennzeichnet, daß die gespeicherte Druckluft als Verbrennungsluft für die Verbrennungs­ kraftmaschine des Kraftfahrzeuges genutzt wird.1. A method for the use of brake energy generated and stored compressed air in motor vehicles, characterized in that the stored compressed air is used as combustion air for the internal combustion engine of the motor vehicle. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die erzeugte Druckluft beim Bremsen gespeichert wird, und erst beim Anfahren oder Beschleunigen der Verbrennungskraftmaschine zugeführt wird.2. The method according to claim 1, characterized in that the compressed air generated is stored when braking, and only when Starting or accelerating the internal combustion engine supplied becomes. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Druckspeicher und die Luftführung wie in Bild 1 angeordnet ist.3. The method according to claim 1, characterized in that the pressure accumulator and the air duct are arranged as in Figure 1. 4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Druckspeicher in die Verbrennungsluftsaugleitung eingebaut ist, und eine Bypaßleitung für den Leerlauf besteht.4. The method according to claim 1, characterized in that the pressure accumulator is built into the combustion air suction line, and there is a bypass line for idling. 5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Luftführung wie in Bild 2 angeordnet ist.5. The method according to claim 1, characterized in that the air duct is arranged as in Figure 2. 6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Druckluft auf der Verbrennungsluftseite einem Abgasturbolader aufgeschaltet wird.6. The method according to claim 1, characterized in that the compressed air on the combustion air side of an exhaust gas turbocharger is activated. 7. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Druck der Verbrennungsluft nach dem Speicher in Abhängigkeit von der geforderten Beschleunigung geregelt wird.7. The method according to claim 1, characterized in that the pressure of the combustion air after the storage depending on the required acceleration is regulated.
DE19863623159 1986-07-10 1986-07-10 Method for utilising stored compressed air, generated by braking energy, as combustion air for internal combustion engines in motor vehicles Ceased DE3623159A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863623159 DE3623159A1 (en) 1986-07-10 1986-07-10 Method for utilising stored compressed air, generated by braking energy, as combustion air for internal combustion engines in motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863623159 DE3623159A1 (en) 1986-07-10 1986-07-10 Method for utilising stored compressed air, generated by braking energy, as combustion air for internal combustion engines in motor vehicles

Publications (1)

Publication Number Publication Date
DE3623159A1 true DE3623159A1 (en) 1988-02-04

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DE19863623159 Ceased DE3623159A1 (en) 1986-07-10 1986-07-10 Method for utilising stored compressed air, generated by braking energy, as combustion air for internal combustion engines in motor vehicles

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689568A1 (en) * 1992-04-07 1993-10-08 Hervier Gerard High-output i.c. engine and propulsion system - uses variable flow of compressed air from large-capacity tank fed by compressor
EP0645272A1 (en) * 1993-09-27 1995-03-29 Gianluigi Reis Recovery system for dissipated energy of an engine motor vehicle during its runnig conditions
DE19624978A1 (en) * 1996-06-22 1998-01-02 Manfred Max Rapp Internal combustion engine for motor vehicles
DE102005022961A1 (en) * 2005-05-19 2006-11-23 Andreas Hentschel Bivalent process to operate piston engine using conventional liquid fuel aided by compressed air and exhaust gas heat recovery
WO2009004130A1 (en) * 2007-05-15 2009-01-08 Valeo Systemes De Controle Moteur Combustion engine with built-in exhaust gas recirculation
CN102261279A (en) * 2010-05-25 2011-11-30 上海汽车集团股份有限公司 Hybrid power system
DE102006045937B4 (en) * 2006-09-28 2019-11-07 Hrvoje Salinovic Charging system for a hybrid engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960544A1 (en) * 1969-12-03 1971-06-16 Kloeckner Humboldt Deutz Ag Power-generating instant reserve generator
DE3117143A1 (en) * 1981-04-30 1982-11-11 Heinz 7128 Lauffen Denz Method and device for the operation of a motor vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960544A1 (en) * 1969-12-03 1971-06-16 Kloeckner Humboldt Deutz Ag Power-generating instant reserve generator
DE3117143A1 (en) * 1981-04-30 1982-11-11 Heinz 7128 Lauffen Denz Method and device for the operation of a motor vehicle

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689568A1 (en) * 1992-04-07 1993-10-08 Hervier Gerard High-output i.c. engine and propulsion system - uses variable flow of compressed air from large-capacity tank fed by compressor
EP0645272A1 (en) * 1993-09-27 1995-03-29 Gianluigi Reis Recovery system for dissipated energy of an engine motor vehicle during its runnig conditions
US5549174A (en) * 1993-09-27 1996-08-27 Reis; Gianluigi Recovery system for dissipated energy of an engine motor vehicle during its running conditions
DE19624978A1 (en) * 1996-06-22 1998-01-02 Manfred Max Rapp Internal combustion engine for motor vehicles
DE102005022961A1 (en) * 2005-05-19 2006-11-23 Andreas Hentschel Bivalent process to operate piston engine using conventional liquid fuel aided by compressed air and exhaust gas heat recovery
DE102005022961B4 (en) * 2005-05-19 2007-04-19 Andreas Hentschel Method for bivalent operation of internal combustion engines with conventional fuels and compressed gas
DE102006045937B4 (en) * 2006-09-28 2019-11-07 Hrvoje Salinovic Charging system for a hybrid engine
WO2009004130A1 (en) * 2007-05-15 2009-01-08 Valeo Systemes De Controle Moteur Combustion engine with built-in exhaust gas recirculation
CN102261279A (en) * 2010-05-25 2011-11-30 上海汽车集团股份有限公司 Hybrid power system
CN102261279B (en) * 2010-05-25 2013-09-18 上海汽车集团股份有限公司 Hybrid power system

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OP8 Request for examination as to paragraph 44 patent law
8131 Rejection