USRE42771E1 - Method of operation of a device for energy conversion using a main fuel and at least one auxiliary fuel - Google Patents
Method of operation of a device for energy conversion using a main fuel and at least one auxiliary fuel Download PDFInfo
- Publication number
- USRE42771E1 USRE42771E1 US12/429,624 US42962409A USRE42771E US RE42771 E1 USRE42771 E1 US RE42771E1 US 42962409 A US42962409 A US 42962409A US RE42771 E USRE42771 E US RE42771E
- Authority
- US
- United States
- Prior art keywords
- fuel
- fuel supply
- auxiliary
- amount
- auxiliary fuel
- 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 - Lifetime, expires
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 230000001960 triggered effect Effects 0.000 description 7
- 239000002828 fuel tank Substances 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000003915 cell function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
- F01M1/20—Indicating or safety devices concerning lubricant pressure
- F01M1/22—Indicating or safety devices concerning lubricant pressure rendering machines or engines inoperative or idling on pressure failure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/12—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7303—Control of both inflow and outflow of tank
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7306—Electrical characteristic sensing
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7313—Control of outflow from tank
- Y10T137/7316—Self-emptying tanks
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7313—Control of outflow from tank
- Y10T137/7323—By float
- Y10T137/7326—Low level safety cut-off
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86187—Plural tanks or compartments connected for serial flow
Definitions
- energy-conversion devices such as internal combustion engines
- auxiliary fuels for example, oil for lubrication and water for cooling.
- the use of lubricating oil and cooling water is not tied directly to the fuel consumption and is generally very low. As a result, triggering a warning indicator is sufficient for refilling the fuel supply, depending on the time and, with vehicles, also depending on the distance.
- auxiliary units that require a consumable auxiliary fuel supply for operation, wherein the operation of the auxiliary units is tied directly to the operation of the internal combustion engine.
- Auxiliary units of this type include, for example, exhaust-gas treatment systems, which are used to reduce nitrogen oxide emissions and to which additives for the exhaust-gas after treatment must be added, e.g. so-called selective catalytic reduction (SCR) catalysts supplemented with reducers.
- SCR selective catalytic reduction
- the auxiliary fuel amount to be supplied depends on the exhaust gas amount to be treated and, thus, for all practical purposes directly on the amount of the main fuel that is consumed.
- a fuel cell for example, can be considered to be an auxiliary unit for the autonomous energy supply for electric auxiliary units, wherein the fuel cell is supplied by an inserted hydrogen cartridge as fuel.
- the main fuel is, thus, used only for the operation of the internal combustion engine, while at least a portion of the electrical energy required for operating the auxiliary units can be generated by the autonomous electrical energy supply without stressing the environment.
- Such auxiliary units, operated via an autonomous electrical energy supply advantageously include all auxiliary units that are not directly connected to the operation of the internal combustion engine, such as air-conditioning systems, window raising/lowering devices, communication means, and servo-units, e.g. for supporting the steering or the braking functions.
- the respective remaining main and auxiliary fuel supplies at least the reaching of a minimum fuel level, have so far been detected with sensors, and a corresponding warning signal generated.
- the internal combustion engine comprises an exhaust-gas after-treatment device which requires a consumable fuel supply for an orderly operation, e.g. feeding a reduction means for a SCR catalyst
- the internal combustion engine can still operate even if the fuel for the exhaust-gas after-treatment device is used up.
- the disadvantage is that the operation then generates an impermissibly high amount of nitrogen oxide.
- a fuel cell represents another application of an energy-conversion device, or converter.
- electrical current is generated through the electro-chemical conversion of a hydrogen-containing combustion gas as the main operating fuel in a reaction with another gas, such as air.
- An auxiliary fuel such as water, for example, is used for wetting the reaction gas and is needed to adjust a defined water content in the reaction air.
- a main fuel and an auxiliary fuel must respectively be carried along in separate reservoirs, in the same way as for the internal combustion engine.
- Energy-conversion devices are henceforth simply referred to as converters, including the combustion engine mentioned as an exemplary embodiment for an energy-conversion device, and the fuel cell.
- This object is achieved with a proposed method for operating an energy-conversion device (converter) by means of a main fuel, wherein at least one tank containing at least one supply of main fuel is provided for operation, as is at least one auxiliary fuel supply that is required directly for the operation of the converter and/or for the operation of an auxiliary unit.
- This object is furthermore achieved in that the main fuel level is detected, that the auxiliary fuel level is detected at least with respect to a specified minimum level, that, once the minimum level for the auxiliary fuel has been reached, a signal is generated that blocks the filling of the main fuel supply and/or the startup of the converter with the aid of a control unit, and that this blocking is removed again once the auxiliary fuel supply has been replenished.
- auxiliary fuel level sensor is linked to the main fuel level sensor. This stopping is lifted only if the auxiliary fuel supply has been replenished, so that the main fuel reservoir can subsequently be filled as well.
- the method is advantageously realized by a signal activating a control program in an operational control that permits only a capacity-limited and/or distance-limited and/or time-limited minimum operation. As a result, it is ensured that, if the level falls below the minimum auxiliary fuel level, the converter is still operational to a limited degree. This is particularly important for the internal combustion engine of a vehicle.
- the capacity limitation can be effected in an internal combustion engine, for example, by changing internal engine parameters, such as adjusting a fuel injection device with the goal of minimizing nitrogen oxide emissions.
- a distance limitation or a time limitation can respectively be preset via the operational control. It is particularly advantageous if the minimum operating level is limited by the existing residual fuel amount. It is advantageous to have a minimum operating level for a vehicle, for example, for maneuvering operations.
- the limitation to a minimum operation is intended to maintain operational safety to a limited degree, wherein this should nevertheless result in an orderly operation of the converter, supported by the respective auxiliary unit. If the predetermined minimum operational limit is reached, it is possible to adjust the control in such a way that the main fuel supply is shut down, which has the same result as a complete consumption of the main fuel supply, namely the shutdown of the converter.
- auxiliary fuel supply e.g. a fuel cell
- a fuel cell for operating an autonomous electrical supply system in a vehicle operated with an internal combustion engine only results in the disadvantage of reducing comfort, depending on the type of electrical auxiliary unit that is being supplied, for example, an air-conditioning unit, but does not necessitate a direct intervention in the internal combustion engine operation.
- the electrical auxiliary unit is used for operating the steering and/or brakes on a vehicle operated with an internal combustion engine
- the failure of the autonomous electrical energy supply directly affects the operation of the vehicle, thereby necessitating an intervention in the engine operation via the control unit.
- This can be done by activating a speed limitation, which permits only a maximum vehicle speed that is matched to the more difficult operation of steering and/or brakes and ensures that the vehicle can be driven safely.
- a different embodiment of the method according to the invention provides that the respective remaining amounts of the main fuel and the auxiliary fuel are detected, and that the resulting actual fuel amount ratio of the main fuel to the auxiliary fuel is determined and is then compared to a specified permissible range for the fuel amount ratio.
- the maximum permissible refill amount for the main fuel and/or the auxiliary fuel is indicated and/or a blocking signal triggered if the levels have fallen below a specified fuel amount ratio.
- the specified fuel amount ratio can be preset as an empirically determined, design-related value in the auxiliary unit control unit and/or in the engine control unit.
- the main fuel amount, the auxiliary fuel amount and the related links can be computed with corresponding calculations and indicated as an amount ratio via a variance comparison.
- the user can also feed fuel in limited amounts during the operation, depending on the prevailing conditions.
- auxiliary fuels for the auxiliary units for example, reduction means for the exhaust-gas after treatment devices or hydrogen for a fuel cell
- this embodiment provides the user with the option of refilling only a limited amount of main fuel, depending on the indicated level.
- the auxiliary fuel supply differs only minimally from the predetermined minimum amount at the time when the main fuel is refilled and if subsequently the main fuel tank is refilled, then the main fuel supply will certainly exceed the possible operating time based on the existing auxiliary fuel amount.
- the blocking signal is then triggered and, following the main fuel tank refilling, the converter can be started only if the auxiliary fuel tank is filled and/or a new cartridge has been inserted.
- the blocking of the starter can be triggered in different ways.
- One option according to the invention is the activation of an electronic vehicle immobilization device, meaning that an orderly turning of the ignition key will not start the converter and, thus, also not start the internal combustion engine of the vehicle. However, an associated signal will light up.
- filling of the tank can be blocked, for example, mechanically with a locking bolt on the lid of the fuel-filling tube or by locking the fuel-tank flap on the automobile body.
- the arrangement generally is configured such that the maximum auxiliary fuel supply is matched to a maximum main fuel supply, so that it can be assumed in principle that the auxiliary fuel supply is used up at the same time as the main fuel supply, which is predetermined by the tank size, so that new auxiliary fuel must be supplied with practically each filling of the main fuel tank.
- the arrangement can also be modified such that a maximum amount of auxiliary fuel is sufficient for n-times the maximum amount of main fuel, so that the auxiliary fuel supply must be replenished, for example, after two or three main fuel tank fillings.
- the auxiliary unit supply in the same way can also be configured such that a reserve is held in store and that, instead of triggering a blocking signal once the auxiliary fuel level falls below the minimum amount, the supply is switched to the reserve reservoir.
- Fuels meaning the main fuel as well as the auxiliary fuels, can also be used in the form of a mixture of at least two material components, wherein the material components can be supplied individually and the mixture then created on site, meaning inside the storage container.
- a urea-hydrogen solution as a reducing agent for reducing NO x levels.
- the mixture ratio is advantageously detected and the blocking signal triggered if this ratio deviates from the predetermined mixture ratio, thus preventing a startup of the internal combustion engine.
- water only is used for adjusting the specified amount during the replenishing of a urea-hydrogen supply as reduction means while the predetermined mixture ratio is not observed.
- the non-problematic operation of the exhaust-gas after treatment unit is thus ensured, insofar as it depends on an orderly auxiliary fuel admixture.
- the aforementioned treatment step is not limited to the application case presented as example.
- the above-described links for detecting the amounts are not limited to one auxiliary fuel.
- the auxiliary fuel required for the exhaust-gas after treatment unit, as well as the auxiliary fuel needed for an autonomous electrical energy supply can be linked to the detection of the main fuel supply in such a way that, once a specified minimum amount is reached for one of the two fuels, corresponding signals are triggered and the control unit and/or the engine control are actuated, which then triggers corresponding control signals.
- the respective amounts can be detected continuously or at predetermined time intervals, wherein the respective amounts should be detected simultaneously.
- the length of these intervals can change.
- the levels can be detected following long time-dependent or distance-dependent intervals. These detection intervals become shorter as the minimum amounts of the fuels are approached, such that the minimum amounts can be detected as precisely as possible.
- a tachograph is required for commercial-use vehicles, for example trucks or buses, for which a tachograph recording sheet must be replaced and controlled regularly. It makes sense in that case if, at least as the minimum amount of one or even several of the fuels is approached, the amount is recorded on the tachograph page, so that the fuel supply can be checked during the daily control of the tachograph.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Exhaust Gas After Treatment (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Claims (22)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/429,624 USRE42771E1 (en) | 2001-12-14 | 2009-04-24 | Method of operation of a device for energy conversion using a main fuel and at least one auxiliary fuel |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10161449A DE10161449A1 (en) | 2001-12-14 | 2001-12-14 | Operating internal combustion engine with filling lock involves inhibiting filling of fuel tank and/or engine starting if predefined minimum quantity in operating medium tank is reached |
DE10161449 | 2001-12-14 | ||
PCT/EP2002/012418 WO2003052251A1 (en) | 2001-12-14 | 2002-11-07 | Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel with tank closure on dropping below a minimum amount of fuels |
US10/866,090 US7207318B2 (en) | 2001-12-14 | 2004-06-14 | Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel |
US12/429,624 USRE42771E1 (en) | 2001-12-14 | 2009-04-24 | Method of operation of a device for energy conversion using a main fuel and at least one auxiliary fuel |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/866,090 Reissue US7207318B2 (en) | 2001-12-14 | 2004-06-14 | Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE42771E1 true USRE42771E1 (en) | 2011-10-04 |
Family
ID=7709189
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/866,090 Ceased US7207318B2 (en) | 2001-12-14 | 2004-06-14 | Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel |
US12/429,624 Expired - Lifetime USRE42771E1 (en) | 2001-12-14 | 2009-04-24 | Method of operation of a device for energy conversion using a main fuel and at least one auxiliary fuel |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/866,090 Ceased US7207318B2 (en) | 2001-12-14 | 2004-06-14 | Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel |
Country Status (5)
Country | Link |
---|---|
US (2) | US7207318B2 (en) |
EP (1) | EP1350021B1 (en) |
AT (1) | ATE265616T1 (en) |
DE (2) | DE10161449A1 (en) |
WO (1) | WO2003052251A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006063373A2 (en) * | 2004-12-16 | 2006-06-22 | Avl List Gmbh | Internal combustion engine |
US8024920B2 (en) | 2006-05-30 | 2011-09-27 | GM Global Technology Operations LLC | Method of monitoring a dosing agent supply for treating exhaust |
DE102007005359B4 (en) * | 2007-02-02 | 2011-04-28 | Webasto Ag | Vehicle with a fuel cell system, a fuel cell system and a safety device comprehensive arrangement and method for operating the fuel cell system |
DE102010049988A1 (en) * | 2010-10-28 | 2012-05-03 | Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) | Shut-off device for drive of vehicle i.e. passenger car, has determination unit for determining road performance under estimation of driving scenario, where drive is switched-off when substance stock falls below stock threshold value |
US9422874B2 (en) * | 2012-12-05 | 2016-08-23 | Electromotive, Inc. | Simplified method to inject ethanol or other solution additives into diesel engines equipped with a digital data bus |
CN108775269B (en) * | 2018-05-28 | 2020-11-27 | 重庆工商大学 | Automatic engine starting and stopping control method and device of hybrid power loader |
US11313292B1 (en) * | 2021-03-25 | 2022-04-26 | Real Time Automated Technologies Llc | Methods and systems for real-time dosing of additives into a fuel supply unit |
Citations (29)
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US3710809A (en) | 1971-01-21 | 1973-01-16 | Fueltime Saver Corp | Reserve fuel system for liquefied gas powered engines |
US3713429A (en) | 1971-11-05 | 1973-01-30 | J Dwyre | Fuel economizer system for a gasoline engine |
US3884255A (en) | 1973-04-30 | 1975-05-20 | Gen Motors Corp | Dual tank fuel system |
US3967549A (en) * | 1973-05-11 | 1976-07-06 | Electroprint, Inc. | Ink supply system for an ink mist printer |
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FR2668203A1 (en) | 1990-10-23 | 1992-04-24 | Peugeot | Method and device for the automatic introduction of an additive into the fuel tank of a motor vehicle, and their use in the case of a vehicle with a diesel engine |
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US6424924B1 (en) * | 1998-06-25 | 2002-07-23 | Kautex Textron Gmbh & Co. Kg | Method and device for determining the fuel reserve in a motor vehicle fuel system |
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EP0829965B1 (en) * | 1996-09-17 | 2001-03-28 | STMicroelectronics S.r.l. | A circuit for driving a signaling device |
DE19727923B4 (en) * | 1997-07-01 | 2006-08-03 | Siemens Ag | tank system |
DE10041705A1 (en) * | 2000-08-24 | 2002-03-14 | Siemens Ag | Method and device for evaluating a residual amount of fuel in a fuel tank |
-
2001
- 2001-12-14 DE DE10161449A patent/DE10161449A1/en not_active Withdrawn
-
2002
- 2002-11-07 AT AT02785367T patent/ATE265616T1/en not_active IP Right Cessation
- 2002-11-07 DE DE50200397T patent/DE50200397D1/en not_active Expired - Lifetime
- 2002-11-07 EP EP02785367A patent/EP1350021B1/en not_active Expired - Lifetime
- 2002-11-07 WO PCT/EP2002/012418 patent/WO2003052251A1/en active Application Filing
-
2004
- 2004-06-14 US US10/866,090 patent/US7207318B2/en not_active Ceased
-
2009
- 2009-04-24 US US12/429,624 patent/USRE42771E1/en not_active Expired - Lifetime
Patent Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3710809A (en) | 1971-01-21 | 1973-01-16 | Fueltime Saver Corp | Reserve fuel system for liquefied gas powered engines |
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Also Published As
Publication number | Publication date |
---|---|
US7207318B2 (en) | 2007-04-24 |
DE10161449A1 (en) | 2003-06-26 |
EP1350021B1 (en) | 2004-04-28 |
EP1350021A1 (en) | 2003-10-08 |
DE50200397D1 (en) | 2004-06-03 |
ATE265616T1 (en) | 2004-05-15 |
US20050004713A1 (en) | 2005-01-06 |
WO2003052251A1 (en) | 2003-06-26 |
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