DE4018221A1 - Fuel preheater for internal combustion engine - is formed by coil of copper pipe wound around engine cooling water pipe - Google Patents

Fuel preheater for internal combustion engine - is formed by coil of copper pipe wound around engine cooling water pipe

Info

Publication number
DE4018221A1
DE4018221A1 DE4018221A DE4018221A DE4018221A1 DE 4018221 A1 DE4018221 A1 DE 4018221A1 DE 4018221 A DE4018221 A DE 4018221A DE 4018221 A DE4018221 A DE 4018221A DE 4018221 A1 DE4018221 A1 DE 4018221A1
Authority
DE
Germany
Prior art keywords
fuel
internal combustion
cooling water
preheater
combustion engine
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
DE4018221A
Other languages
German (de)
Inventor
Karl-Heinz Serwe
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.)
SERWE KARL HEINZ
Original Assignee
SERWE KARL HEINZ
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 SERWE KARL HEINZ filed Critical SERWE KARL HEINZ
Priority to DE4018221A priority Critical patent/DE4018221A1/en
Publication of DE4018221A1 publication Critical patent/DE4018221A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/10—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants or cooling water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/16—Other apparatus for heating fuel
    • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The fuel supplied to an internal combustion engine is pre-heated before flowing to the carburettor. The fuel is heated by flowing through a copper pipe which is coiled around a flexible hose through which the engine cooling water circulates. To ensure high thermal conductivity electrolyte copper is used for the pipe coil. The fuel is thus heated without the use of an external source of heating. The pre-heating of the fuel reduces the fuel consumption of the engine for a given power output. USE - Internal combustion engine.

Description

A=Aufbau:A = construction:

Der Kraftstoff-Vorwärmer besteht aus zylindrisch verformtem Rohrmaterial, ähnlich einer Spiralfeder gewendelt.The fuel preheater consists of cylindrically deformed tube material, similar to a spiral spring.

Aus Gründen der Wärme-Leitfähigkeit ist der Vorwärmer aus Cu-Rohr (Elektrolyt-Kupfer) gefertigt.For reasons of thermal conductivity, the preheater is made of copper tubing (Electrolytic copper).

Der Innendurchmesser des entwickelten Modells beträgt 6 mm, der Außen­ durchmesser - 8 mm.The inside diameter of the developed model is 6 mm, the outside diameter - 8 mm.

Abweichungen in der Materialbeschaffenheit u. Dimmensionierung, sind je nach Erfordernis möglich.Deviations in the material properties u. Dimensioning are depending on Requirement possible.

Der von mir entwickelte Vorwärmer besitzt 17 Windungen mit einer lichten Weite von 45 mm. Je nach Anspruch ist sowohl die Windungszahl als auch der Durchmesser variabel. Das entscheidende Kriterium ist hier die Motor­ leistung.The preheater I developed has 17 turns with a clear one Width of 45 mm. Depending on the requirements, both the number of turns and the Variable diameter. The decisive criterion here is the engine power.

Durch die problemlose Verformbarkeit des Cu-Rohres, kann das zylindrische Rohrwendel auch ungerade verlaufenden Objekten angepaßt werden. Das hier angesprochene Objekt ist der Kühlwasserschlauch, der vom Motorblock zum Wärmetauscher führt.Due to the problem-free deformability of the Cu tube, the cylindrical one Pipe coils can also be adapted to odd objects. The The object addressed here is the cooling water hose from the engine block leads to the heat exchanger.

Zur Erhaltung der Elastizität u. um die Aggregate-Schwingungen störungs­ frei aufzunehmen, sind die Kraftstoff-Verbindungsleitungen flexibel ausgeführt.To maintain elasticity u. to disturb the aggregate vibrations The fuel connection lines are flexible to accommodate executed.

Das Verbindungsmaterial entspricht der Deutschen Industrie Norm. The connection material corresponds to the German industry standard.  

B=Betrieb:B = operation:

Der Kraftstoff-Vorwärmer wird über den Kühlwasserschlauch geschoben u. mit Kraftstoff-Schläuchen vor der Einspritzpumpe bzw. den Vergaser zwischen die vom Tank kommende Versorgungsleitung geschaltet.The fuel preheater is pushed over the cooling water hose u. with fuel hoses in front of the injection pump or the carburetor connected between the supply line coming from the tank.

Bei Verbrennungsmotoren mit Dieselbetrieb, wird mit Rücksicht auf den höheren Siedepunkt des Diesel-Kraftstoffes u. zur Erhöhung der Effiziens der Vorwärmer mit einer Wärme-Isolierung ummantelt.In the case of internal combustion engines with diesel operation, consideration is given to the higher boiling point of diesel fuel u. to increase efficiency the preheater is covered with heat insulation.

Bei Verbrennungsmotoren mit Benzinbetrieb (Ottomotoren) wird im Hinblick auf den geringeren Siedepunkt des Kraftstoffes u. zur Vermeidung von Übertemperaturen der Vorwärmer ohne Isomantel montiert.In internal combustion engines with gasoline operation (gasoline engines) is in With regard to the lower boiling point of the fuel u. to Prevention of overheating of the preheater without an iso jacket assembled.

Bei besonders hochtemperierten Aggregaten ist der Kraftstoff- Vorwärmer auf dem Kühlwasserschlauch mit "Schlupf" zu montieren; d.h. zwischen dem Kühlwasserschlauch u. dem Kraftstoff-Vorwärmer ergibt sich dann ein geringer Luftspalt. Der Vorwärmer übernimmt dann nicht mehr direkt von dem Außenmantel des Kühlwasserschlauches die volle Wärmeleistung, sondern reduzierte Leistung über Strahlungswärme.In the case of particularly high-temperature units, the fuel Mount preheater on the cooling water hose with "slip"; i.e. between the cooling water hose u. the fuel preheater there is then a small air gap. The preheater takes over then no longer directly from the outer jacket of the cooling water hose the full heat output, but reduced output over Radiant heat.

In diesem Fall muß der Vorwärmer-Durchmesser entspr. größer dimensioniert sein. In this case, the preheater diameter must be larger be.  

C= WirkungsweiseC = mode of action

Nach dem Start der Verbrennungsmaschine übernimmt der Kraftstoff- Vorwärmer von dem Kühlwasserschlauch die abgeführte Motorwärme u. überträgt die Wärmeenergie auf das im Vorwärmer zirkulierende Medium "Kraftstoff".After starting the internal combustion engine, the fuel Preheater from the cooling water hose, the engine heat dissipated u. transfers the thermal energy to the medium circulating in the preheater "Fuel".

Der Kraftstoff erwärmt sich u. mit der Erwärmung nimmt die Zünd­ willigkeit zu.The fuel may heat up. with the warming the ignition takes off willingness to.

Der Grad der Kraftstoff-Ausnutzung erhöht sich u. analog dazu veringern sich die Verbrauchs- u. Emmisionswerte.The degree of fuel utilization may increase. Similarly reduce the consumption u. Emission values.

Durch den Einbau des Vorwärmers werden Kraftstoff-Einsparungen in Höhe von ca. 20% erreicht.By installing the preheater there will be fuel savings reached in the amount of approx. 20%.

Die Ausgedehnten Versuche - die sich insgesamt über einen Zeitraum von 3 Jahren erstreckten - haben diese möglichen Einsparwerte eindeutig belegt. Spez. beim Dieselaggregat bewirkte der Vorwärmer nach Erreichen der Betriebstemperatur zudem einen deutlich weicheren bzw. ruhigeren Lauf.The Extended Trials - which totaled over a period of 3 years - these possible savings values clearly have busy. In the case of the diesel generator, the preheater caused the effect after it was reached the operating temperature also a much softer or quieter Run.

Claims (1)

Kraftstoff-Vorwärmer für Verbrennungsmotoren ohne Einsatz von Fremdenergie, unter Ausnutzung der motoreigenen Betriebswärme, mit folgenden Merkmalen:
  • a) der Kraftstoff-Vorwärmer ist aus zylindrisch gewendeltem Rohrmaterial gefertigt,
  • b) aus Gründen der Wärme-Leitfähigkeit u. besseren Verformbarkeit, besteht das Rohrmaterial aus Elektrolyt-Kupfer,
  • c) durch die problemlose Verformbarkeit des Cu-Rohres, kann das zylindrische Rohrwendel auch ungerade verlaufenden Objekten (Kühlwasserschläuche) angepaßt werden,
  • d) der Vorwärmer wird über Kraftstoff-Schläuche zwischen die Kraftstoff- Versorgungsleitung geschaltet u. bewirkt so eine deutliche Reduzierung des Kraftstoff-Verbrauchs.
Fuel preheater for internal combustion engines without the use of external energy, using the engine's own operating heat, with the following features:
  • a) the fuel preheater is made of cylindrical coiled tubing,
  • b) for reasons of heat conductivity u. better ductility, the tube material is made of electrolytic copper,
  • c) due to the problem-free deformability of the copper pipe, the cylindrical pipe coil can also be adapted to odd objects (cooling water hoses),
  • d) the preheater is connected via fuel hoses between the fuel supply line u. causes a significant reduction in fuel consumption.
DE4018221A 1990-06-07 1990-06-07 Fuel preheater for internal combustion engine - is formed by coil of copper pipe wound around engine cooling water pipe Ceased DE4018221A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4018221A DE4018221A1 (en) 1990-06-07 1990-06-07 Fuel preheater for internal combustion engine - is formed by coil of copper pipe wound around engine cooling water pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4018221A DE4018221A1 (en) 1990-06-07 1990-06-07 Fuel preheater for internal combustion engine - is formed by coil of copper pipe wound around engine cooling water pipe

Publications (1)

Publication Number Publication Date
DE4018221A1 true DE4018221A1 (en) 1991-02-14

Family

ID=6407945

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4018221A Ceased DE4018221A1 (en) 1990-06-07 1990-06-07 Fuel preheater for internal combustion engine - is formed by coil of copper pipe wound around engine cooling water pipe

Country Status (1)

Country Link
DE (1) DE4018221A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8112771U1 (en) * 1981-04-30 1981-11-19 Huber, Leopold, 8903 Bobingen FUEL PREHEATER FOR COMBUSTION ENGINES FOR SAVING FUEL
US4397288A (en) * 1981-05-01 1983-08-09 Phillips Temro, Inc. Diesel fuel warmer
FR2534317A1 (en) * 1982-10-06 1984-04-13 Debeaux Michel Gas oil reheating-thawing device for vehicle with diesel engine
DE8620191U1 (en) * 1986-07-28 1986-11-13 Rössler, Peter, 6400 Fulda Motor vehicle with a diesel engine
DE8700961U1 (en) * 1987-01-21 1987-08-27 Steinmetz, Friedrich, 8501 Cadolzburg Fuel preheating device for water-cooled diesel engines
DE3637483C1 (en) * 1986-11-04 1988-01-28 Peter Socha Mixture preparation for carburettor internal combustion engine
DE3741281A1 (en) * 1987-08-29 1989-03-09 Fritz Dipl Ing Mueller Diesel heater

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8112771U1 (en) * 1981-04-30 1981-11-19 Huber, Leopold, 8903 Bobingen FUEL PREHEATER FOR COMBUSTION ENGINES FOR SAVING FUEL
US4397288A (en) * 1981-05-01 1983-08-09 Phillips Temro, Inc. Diesel fuel warmer
FR2534317A1 (en) * 1982-10-06 1984-04-13 Debeaux Michel Gas oil reheating-thawing device for vehicle with diesel engine
DE8620191U1 (en) * 1986-07-28 1986-11-13 Rössler, Peter, 6400 Fulda Motor vehicle with a diesel engine
DE3637483C1 (en) * 1986-11-04 1988-01-28 Peter Socha Mixture preparation for carburettor internal combustion engine
DE8700961U1 (en) * 1987-01-21 1987-08-27 Steinmetz, Friedrich, 8501 Cadolzburg Fuel preheating device for water-cooled diesel engines
DE3741281A1 (en) * 1987-08-29 1989-03-09 Fritz Dipl Ing Mueller Diesel heater

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8122 Nonbinding interest in granting licences declared
8110 Request for examination paragraph 44
8131 Rejection