Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
  • F02P3/00—Other installations
• • 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
  • F02B51/00—Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines
  • F02B51/04—Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines involving electricity or magnetism
• • 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
  • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
  • F02M31/125—Fuel
• • 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
  • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
  • F02M31/135—Fuel-air mixture
• • 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
  • F02M33/00—Other apparatus for treating combustion-air, fuel or fuel-air mixture
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
  • F02P23/00—Other ignition
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
  • F23K5/00—Feeding or distributing other fuel to combustion apparatus
  • F23K5/02—Liquid fuel
  • F23K5/14—Details thereof
  • F23K5/20—Preheating devices
• • 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
  • F02B3/00—Engines characterised by air compression and subsequent fuel addition
  • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
• • 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

Definitions

• the invention initially relates to a method for operating an internal combustion engine or furnace, in which liquid fuel is heated before being introduced into a combustion chamber. Furthermore, the invention relates to a device according to the preamble of patent claim 9.
• DE-OS 32 03 764 describes a device for supplying liquid or gaseous fuels or fuels for internal combustion engines such as, for example, spark-ignition or self-igniting reciprocating internal combustion engines or stationary combustion engines. plants known, a preheating device being integrated in the fuel and fuel line. The preheating device is designed and controlled in such a way that fuel is brought to a certain temperature, which means that pollutant emissions can only be influenced to a small extent.
• a device for performing the method is specified in claim 11. Essential developments of this device result from claims 10 to 23.
• the fuel is heated and processed in four stages in the preheating device.
• the fuel is first brought to a base temperature of between 40 and 60 ° C. (fuel-specific) in the preheating stage in order to be the same for the next heating or heating stage Parameters, be it in winter or be it in summer.
• the expansion stage the fuel is expanded while heating to a temperature between 50 to 150 ° C.
• the fuel-air mixture which, for example in the case of a reciprocating piston internal combustion engine, gives immediate, almost residue-free combustion immediately at top dead center with a maximum of released energy and a minimum of pollutant emissions.
• the fuel is to be introduced directly at the vaporization or vapor transition point as a fine, easily ignitable (liquid) spray mist, which also has significant advantages, particularly in the case of self-igniting internal combustion engines. Ignition of the introduced fuel mixture can also be carried out in the shortest possible time in the case of spark-ignition internal combustion engines.
• the temperature to be reached can be precisely controlled in the individual preheating and heating stages by means of control electronics.
• input and output data such as quantity flow and pressure upstream of the preheating device are to be determined in order to determine fuel-specific operating parameters to be controlled precisely in the preheating device with a view to reaching the intramolecularly unstable state shortly before the vapor transition or vaporization point.
• the device can also be retrofitted to conventional internal combustion engines, which means that fuel consumption is reduced to a considerable extent and the emission of pollutants is reduced to a minimum. Fuel savings in the range between 50 to 80% have been confirmed by tests in conventional car engines. A 17 to 23% increase in performance was also observed.
• the fuel-air mixture introduced in the combustion chamber can also be prepared for ignition by — as advantageous embodiments of the invention provide — firstly the mixture by applying a negative voltage of 120 V (from the cathode of the Spark plug is polarized to the cylinder walls (electrode)). The region between the electrode and the cathode of the spark plug can then be ionized by applying a negative voltage of 320 V, so that an ionized field (cloud) can be generated around the cathode and the electrode of the spark plug.
• a negative voltage of 120 V from the cathode of the Spark plug is polarized to the cylinder walls (electrode)
• the region between the electrode and the cathode of the spark plug can then be ionized by applying a negative voltage of 320 V, so that an ionized field (cloud) can be generated around the cathode and the electrode of the spark plug.
• cloud ionized field
• the ignition spark ignites the cloud, which is then put into the plasma state,
• a particularly preferred embodiment of the method or the device according to the invention provides two independent fuel circuits with an intermediate one Compensation level before.
• the preheating device and the fuel quantity divider are expediently contained in a first fuel circuit.
• the second fuel circuit is connected to the fuel tank.
• the fuel in the compensation tank or the compensation stage can be mixed with non-preheated fuel coming from the fuel tank in order to compensate for any previous outgassing processes and to reach the desired temperature level again. Any excess amount of fuel can be returned to the fuel tank via a return line in the second fuel circuit.
• the amount of fuel to be mixed is dependent on the control electronics as a function of the operating parameters to control. For this purpose, an electronically controlled 3-way mixer can be present in the compensation container.
• Fig. 1 is a flow and control diagram of the
• Fig. 2 shows another flow diagram of the
• the device for carrying out the method according to the invention is generally designated by 1, which in the illustrative embodiment is designed as a device which can generally be attached to existing internal combustion engines or furnaces, for example with a housing made of an impact-resistant device Plastic or metal.
• the control electronics can be designed and attached as a hybrid connector located in an interior of the housing. External inlet connections for the fuel are designed in accordance with industry standards and can therefore also be adapted to existing vehicles with petrol or diesel engines.
• the housing can also be equipped with vibration-damped brackets for fastening to the vehicle.
• the tank for the liquid fuel for example super or diesel fuel, is numbered 2.
• a fuel line 3 leads from the tank 2 to a fuel pump 4, which is followed by a check valve 5, a flow sensor 6 and a pressure sensor 7.
• the flow sensor 6 and the pressure sensor 7 are connected via lines 8 and 9 to control electronics, generally numbered 10, which can take fuel-specific flow and pressure values into account.
• the voltage supply takes place via an alternator 11, on which a sensor 12 for running monitoring is also arranged, which in turn is connected to the control electronics 10.
• a vehicle electrical system sheet 13 is also connected to a network preparation 14 provided on the control electronics 10.
• the preheating device has a total of 15.
• This preheating device 15 is designed as a thermo-coax heater coil and preferably has twelve turns with a length of 36 cm per turn and consists of a copper tube with a minimum inside diameter of 8 mm.
• the heating coil is covered with an insulation 16.
• the heater coil is constructed in four stages by providing four heating elements / thermal sensor elements 17, 18, 19 and 20. Each of the heating elements can be controlled via the control electronics 10, and the fuel to be carried out can also be set to an accuracy of 1/10 ° in the respective stages depending on a setpoint / actual value comparison.
• a thermal sensor 21 is also provided, which reports the outlet temperature to the control electronics.
• the fuel is fed to a fuel quantity distributor 23, for example a carburetor, an injection pump, or a via a thermal pressure line 22 Flow divider supplied, from where the fuel or the fuel / air mixture enters the combustion chamber of the internal combustion engine or a combustion system.
• a fuel quantity distributor 23 for example a carburetor, an injection pump, or a via a thermal pressure line 22 Flow divider supplied, from where the fuel or the fuel / air mixture enters the combustion chamber of the internal combustion engine or a combustion system.
• two separate fuel circuits I and II are provided, which can be connected to one another via a compensation container 24.
• the first fuel circuit I has the preheating device 15 and the fuel quantity divider 23.
• a working pump 25 is also provided.
• a pressure measuring point is also arranged.
• a quantity store 27 is also present. The fuel quantity not supplied to the combustion chamber can be supplied from the fuel quantity divider 23 to the compensation tank 24 via the return part 1.1 of the first fuel circuit I.
• the pressure line 3 of the second fuel circuit II is also connected to the compensation tank 24.
• a mixer 28 Before introduction into the compensation tank, a mixer 28 is also connected to this pressure line, so that - again electronically controlled - a quantity of fuel is returned via the bypass line II.2 to the return line II.3 to the fuel tank 2 even before introduction into the compensation tank can be.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Fuel-Injection Apparatus (AREA)
• Output Control And Ontrol Of Special Type Engine (AREA)
• Combustion Methods Of Internal-Combustion Engines (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=6483912

Family Applications (1)

Country Status (14)

Families Citing this family (7)

Family Cites Families (5)

• 1993
  • 1993-03-26 DE DE4309833A patent/DE4309833C2/de not_active Expired - Fee Related
• 1994
  • 1994-03-08 JP JP6521590A patent/JP2598622B2/ja not_active Expired - Lifetime
  • 1994-03-08 AU AU64252/94A patent/AU6425294A/en not_active Abandoned
  • 1994-03-08 EP EP94911870A patent/EP0642627A1/de not_active Withdrawn
  • 1994-03-08 CZ CZ942913A patent/CZ291394A3/cs unknown
  • 1994-03-08 CN CN94192270A patent/CN1129028A/zh active Pending
  • 1994-03-08 WO PCT/EP1994/000709 patent/WO1994023194A1/de not_active Application Discontinuation
  • 1994-03-08 KR KR1019940704270A patent/KR970004672B1/ko active
  • 1994-03-08 CA CA002136613A patent/CA2136613A1/en not_active Abandoned
  • 1994-03-08 BR BR9404761A patent/BR9404761A/pt not_active Application Discontinuation
  • 1994-03-08 PL PL94306416A patent/PL306416A1/xx unknown
  • 1994-03-23 IL IL10909194A patent/IL109091A0/xx unknown
  • 1994-03-24 TW TW083102590A patent/TW265389B/zh active
  • 1994-11-23 FI FI945512A patent/FI945512A/fi not_active Application Discontinuation

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events