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
  • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
  • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
  • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
  • F02M21/0221—Fuel storage reservoirs, e.g. cryogenic tanks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
  • B60K15/03—Fuel tanks
  • B60K15/03006—Gas tanks
• • 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
  • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
  • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
  • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
  • F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
  • F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
• • 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
  • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
  • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
  • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
  • F02M21/0287—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers characterised by the transition from liquid to gaseous phase ; Injection in liquid phase; Cooling and low temperature storage
• • 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
  • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
  • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
  • F02M21/06—Apparatus for de-liquefying, e.g. by heating
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
  • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
• • 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
  • F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
  • F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
• • 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
  • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
  • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
  • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
  • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
  • F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
• • 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
  • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M37/04—Feeding by means of driven pumps
  • F02M37/08—Feeding by means of driven pumps electrically driven
  • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2221/00—Handled fluid, in particular type of fluid
  • F17C2221/03—Mixtures
  • F17C2221/032—Hydrocarbons
  • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2221/00—Handled fluid, in particular type of fluid
  • F17C2221/03—Mixtures
  • F17C2221/032—Hydrocarbons
  • F17C2221/035—Propane butane, e.g. LPG, GPL
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
  • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
  • F17C2223/0146—Two-phase
  • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2265/00—Effects achieved by gas storage or gas handling
  • F17C2265/06—Fluid distribution
  • F17C2265/066—Fluid distribution for feeding engines for propulsion
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2270/00—Applications
  • F17C2270/01—Applications for fluid transport or storage
  • F17C2270/0102—Applications for fluid transport or storage on or in the water
  • F17C2270/0105—Ships
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2270/00—Applications
  • F17C2270/01—Applications for fluid transport or storage
  • F17C2270/0165—Applications for fluid transport or storage on the road
  • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
• • 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
  • Y02T10/30—Use of alternative fuels, e.g. biofuels

Definitions

• the subject of the present invention is a gaseous withdrawal device for a liquefied petroleum gas tank of a land or marine vehicle for use at engine starting.
• This device relates generally to the technical field of equipment for supplying gaseous fuels of the liquefied petroleum gas (LPG) or natural gas (CNG) type for combustion engines, and in particular for explosion engines. Normally receiving a carDurant nqui ⁇ e.
• LPG liquefied petroleum gas
• CNG natural gas
• Liquefied petroleum gas is increasingly used as a source of energy for motor vehicles. This fuel makes it possible to significantly reduce the emissions of CO2, hydrocarbons, NOx, VOCs, etc., compared to that produced by conventional gasoline or diesel fuel combustion engines.
• LPG is the least polluting fuel available today and its octane rating allows smoother operation, avoiding vibration and noise while increasing engine life. In addition, in many countries, LPG is subject to an advantageous taxation allowing a significant reduction in the cost price per kilometer.
• liquefied gas to operate an engine originally designed to receive a liquid fuel requires the use of a specific fuel system comprising a "vaporizer expander", ensuring the vaporization of fuel under a pressure and with a specific flow.
• the vapor pressure regulator is usually in the form of a housing comprising a double chamber formed of a gas vaporization chamber and a thermal chamber in which a hot liquid circulates, which is often constituted by the cooling water of the engine removed. thanks to a derivation performed on the circuit connecting it to the radiator. Both chambers have a common wall arranged to allow a good transmission of calories.
• the heating of the expander can also be obtained by the engine lubricating oil (patent No. FR 2 764002), or by an electric heating element incorporated (patent No. FR 2 759419) or external (patent No. FR 2 780 102).
• the vapor pressure regulator may be formed of two independent parts connected by a single pipe, a regulator of the flow and pressure of the vaporized gas, connected to the engine, and a vaporization element consisting of a heat exchanger consisting of a tube a heat-conducting material in which the gas passes, liquid at the inlet connected to the feed tank and gaseous at the outlet, this tube being immersed in a heating liquid contained in a chamber (Patent No. FR 2 801 643 ).
• LPG liquefied petroleum gas
• CNG natural gas
• the liquefied gas tank connected by a first pipe to a vaporizer and a regulating element of flow and pressure.
• a tank of gasoline or diesel fuel connected by a second pipe to the carburetor or an injector supply rail.
• This second feed is used to allow the engine to start and run until the temperature of the cooling water or lubricating oil is high enough to ensure vaporization of the liquefied fuel. .
• the heat transfer fluid of the vaporization element can not be hot enough to provide the gaseous fuel the calories necessary for its vaporization.
• a parailel circuit of fuel or gas oil to operate the engine until the latter has reached its optimum operating temperature, that is to say, a temperature sufficient for the heat transfer fluid from the vaporization element is sufficiently hot to vaporize the liquefied gaseous fuel.
• the fuel supply circuit is cut in favor of the main circuit liquefied gaseous fuel supply. This is commonly called bi-injection or bi-carburation.
• the purpose of the device according to the present invention is to allow the use of liquefied gaseous fuel for a standard type of explosion engine without requiring the use of a second fuel or gas oil supply to ensure starting.
• It consists of a double liquefied gas supply formed from the combination of a vaporization system using the heat of the coolant or the engine lubricating oil to heat the fuel taken in the liquid state in the reservoir , and liquefied petroleum gas sampling equipment at the top of the tank for supplying the engine during the start-up period, the supply of gaseous fuel being cut off when the engine is sufficiently hot and replaced by the supply of liquefied gas through solenoid valves.
• FIG. 1 represents a schematic view of the entire liquefied gaseous fuel supply system
• Figure 2 is an enlarged longitudinal section of the vaporization showing the internal structure of the latter and corresponding to the detail D1 of Figure 1
• Figure 3 is a vertical section of the tank along the arrows F1 of Figure 2
• Figure 4 is a partial view of a variant of the network of heating the vaporization system, this view showing the connection of said network on a calorstat support.
• FIGS. 1 to 3 consists of a tank 1 of liquefied gaseous fuel 2 equipped with two engine supply lines, a liquid phase fuel line 3 and a gas phase fuel line 4.
• the tank 1 is of any shape of the type customarily used for liquefied petroleum gas (LPG) or natural gas of the town (CNG) and comprises a tube 5 for withdrawing the liquid phase fuel, which ends at the bottom of the tank and is equipped with a control electro-valve 6 at its outlet, and a filling pipe 7.
• the tank 1 may be designed to replace a tank of gasoline or diesel.
• the tank 1 is equipped, in addition to the usual equipment such as level gauge, safety valve, etc., of a solenoid valve
• the liquid phase fuel line 3 may comprise a safety solenoid valve 12 arranged upstream of a three-way connector 13 to which are connected, in addition to the liquid phase fuel supply, the gas phase fuel line 4 and the tubing supplying the regulating element 15 with the flow rate and the pressure of the vaporized gas supplied to the engine, this tubing being connected directly to the carburettor or to the injection system in the case of one of the ⁇ u n salt element.
• the solenoid valve 8 for drawing off the gas phase fuel may possibly be mounted near the three-way connector 13.
• the fuel in the liquid phase 2 passes, before reaching the safety solenoid valve 12, by a vaporization system 20 advantageously constituted by a tubular element 21 in which circulates the engine coolant taken from a bypass consisting of a withdrawal pipe 22 and a return pipe 23.
• the withdrawal piping 22 and return pipe 23 will advantageously be connected to the engine cooling circuit by means of a specific thermostat support 24 arranged in such a way as to that the flow in these pipes is controlled by said thermostat ( Figure 4).
• the tubular element 21 is formed of a sealed enclosure preferably made of deformable insulating material, and in which passes the fuel line in the liquid phase 3.
• This sealed enclosure may consist of a reinforced rubber hose type "hose or the like and closed at both ends by an upstream connection 25 and a downstream connection 26 traversed by said vaporization tube.
• the heating of the vaporization system 20 can also be obtained by the engine lubricating oil, or possibly by an external electric heating body connected to said system by pipes traversed by a suitable liquid.
• control valves 6 for liquid fuel outlet and for sampling 8 for gaseous fuel as well as the vaporized fuel supply safety solenoid valve 12 are controlled by a system able to determine when the temperature of the vaporization system 20 is sufficient to ensure the passage in the gas phase of the fuel taken in the liquid phase.
• control system detects that the vaporization temperature is sufficiently high, it causes the opening of the control solenoid valve 6 and the liquid phase fuel supply safety valve 12, and the closure of the 8 gaseous fuel sampling solenoid valve.
• This arrangement makes it possible to use the fuel in the gaseous phase for a sufficiently short period to prevent icing of the pipes and connecting members while eliminating the need for a second tank containing gasoline or gas oil.
• the gas phase gas sampling system can be arranged so that it can be used for feeding heating or cooking appliances in a "home-car” or a towed caravan.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• Transportation (AREA)
• Output Control And Ontrol Of Special Type Engine (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=39877940

Family Applications (1)

Country Status (3)

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Family Cites Families (9)

• 2008
  • 2008-04-18 FR FR0802157A patent/FR2930297B1/fr not_active Expired - Fee Related
• 2009
  • 2009-03-24 EP EP09749993A patent/EP2274513A1/de not_active Withdrawn
  • 2009-03-24 WO PCT/FR2009/000314 patent/WO2009141512A1/fr active Application Filing

Non-Patent Citations (1)

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