WO2020031027A1 - Collecteur intégré pour moteur à combustion interne alimenté au gaz naturel - Google Patents

Collecteur intégré pour moteur à combustion interne alimenté au gaz naturel Download PDF

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Publication number
WO2020031027A1
WO2020031027A1 PCT/IB2019/056538 IB2019056538W WO2020031027A1 WO 2020031027 A1 WO2020031027 A1 WO 2020031027A1 IB 2019056538 W IB2019056538 W IB 2019056538W WO 2020031027 A1 WO2020031027 A1 WO 2020031027A1
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WIPO (PCT)
Prior art keywords
valve
filling
system module
fuel system
natural gas
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
PCT/IB2019/056538
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English (en)
Inventor
Akshay Kashyap
Anant MISRA
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Individual
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Individual
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Filing date
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Publication of WO2020031027A1 publication Critical patent/WO2020031027A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F02D19/02—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 gaseous fuels
    • F02D19/026—Measuring or estimating parameters related to the fuel supply system
    • F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
    • 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
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • 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
    • B60K2015/03019—Filling of gas 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
    • B60K2015/03026—Gas tanks comprising a valve
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0341—Filters
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • 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
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • 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
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage
    • 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 present invention relates generally to a fuel system module for a vehicle. More particularly, the invention provides an integrated manifold for filling gaseous fuel (CNG) for an internal combustion engine while reducing overall cost, weight, joints, size, and thereby improve the performance.
  • CNG gaseous fuel
  • liquid-fueled internal combustion engines have been used to produce power and drive machines and such internal combustion engines have undergone many improvements to become more efficient, more powerful, and/or less polluting.
  • fuel properties and quality have also improved, and alternative fuels such as methanol and other alcohol-based fuels have also been considered to help with reducing harmful emissions.
  • a combustible gaseous fuel such as methane, propane, butane, hydrogen, natural gas, and blends of such fuels, with equivalence measured on an energy basis, can be combusted to produce the same power while producing less harmful emissions in the form of particulates and greenhouse gases.
  • CNG compressed natural gas
  • the control panel comprising a panel body and a pneumatic interface body mounted on the back of the panel, drain valve, pressure gauge, pneumatic valves and air supply shut-off valves , the back panel is attached to the manifold valve block body, are provided with a plurality of interconnected internal mounting interfaces, pressure gauge, drain valve, the supply cut-off valve and a pneumatic shut-off valve are in communication through a tracheal interface mounted on the manifold valve block, pneumatic shut-off valve in communication with the inflator interfaces through the trachea, the front panel of the body is arranged with a pneumatic valve port interfaces emptying valve handle, the dial gauge, the pneumatic shut-off valve and the gas shut-off valve handle grip.
  • panel is pre-fabricated to assemble the set of equipment, it requires special attention while assembling set of interconnecting tubes. Further, since there is plurality of interconnecting tubes employed, chances of error and failure increases.
  • the present invention provides an integrated manifold with an elongated single fuel channel with provisions for attaching flow regulator and essential safety equipment’s as per vehicle regulatory act, while reducing overall cost, weight, joints, size, potential failure and thereby improve the performance.
  • the main object of present invention is to provide an integrated manifold for filling gaseous fuel (CNG) for an internal combustion engine while reducing overall cost, weight, joints, size, potential failure and thereby improve the performance.
  • CNG gaseous fuel
  • Yet another object of present invention is to provide an integrated manifold which enhances filling performance for gaseous fuel (CNG) by reducing friction losses thus improving overall filling time of gaseous fuel tank.
  • CNG gaseous fuel
  • Yet another object of present invention is to provide an integrated manifold for filling gaseous fuel (CNG) that reduces the overall packaging space.
  • the present invention relates generally to a fuel system module. More particularly, the invention provides an integrated manifold that include channels or pass-through bores to form a fuel channel, filling at least one port through which fuel communication with the fuel channel is established. Therefore, the integrated manifold provides faster filling of gaseous fuel such as CNG for an internal combustion engine. Further, it also reduces overall cost, weight, joints, size, and potential failure and thereby improving the performance.
  • gaseous fuel such as CNG for an internal combustion engine.
  • a fuel system module with an integrated manifold for filling gaseous fuel (CNG) to the provided tank i.e. CNG tank for an internal combustion engine comprises of a manifold having a continuous fuel channel of about 4.6 - 8 mm diameter. Further, the manifold is provided with suitable standard taper and/or straight threaded ports branched into the fuel channel to attach high pressure fittings for controlling the flow and essential mandatory equipment’s as per vehicle regulatory act such as, but not limited to high pressure gauge, NGV and NZS filling valve assembly, high pressure filter, automatic shut off valve, ignition switch (micro switch), high pressure sensor, manual shut off valve, etc.
  • CNG gaseous fuel
  • a fuel system module with integrated manifold is provided with two natural gas filling valves, one manual and one automatic shut off valve and one pressure gauge wherein one of the natural gas filling valves is amongst natural gas vehicle NGV2 or NGV1 for fast filling and the other natural gas filling valve is New Zealand Standard (NZS) for slow filling.
  • the natural gas filling valves control and regulate the flow of high-pressure natural gas i.e. CNG, through micro switches that are configured to control the engine ignition during filling as per the safety standards. Further, both valves are provided with either dust cap and/or lock pins to safe guard fuel system from dirt and dust and further to operate the micro switch.
  • the manual and automatic shutoff valves are configured to shut off the gaseous fuel (CNG) supply to engine when engine ignition is switched off.
  • a fuel system module with integrated manifold is equipped with one natural gas filling valve, one pressure gauge; one manual and one automatic shut off valve wherein the manual and automatic shutoff valves are configured to shut off the gaseous fuel (CNG) supply to engine when engine ignition is switched off.
  • the natural gas filling valve is preferably natural gas vehicle NGV2.
  • a fuel system module with integrated manifold is equipped with two natural gas filling valves; one manual shut off valve; a pressure gauge and a pressure sensor.
  • the pressure gauge and pressure sensor are provided to monitor pressure in the flow path of incoming gaseous fuel (CNG) and while the gaseous fuel is filling in the CNG tank of vehicle.
  • Fig. 1 illustrates perspective view of a fuel system module having an integrated manifold for filling gaseous fuel (CNG) in accordance with an embodiment of the present invention.
  • CNG gaseous fuel
  • Fig. 2 illustrates top view of a fuel system module having an integrated manifold for filling gaseous fuel (CNG) in accordance with an embodiment of the present invention.
  • CNG gaseous fuel
  • Fig. 3 illustrates perspective view of a fuel system module having an integrated manifold for filling fuel (CNG) in accordance with another embodiment of the present invention.
  • Fig. 4 illustrates perspective view of a fuel system module having an integrated manifold for filling fuel (CNG) in accordance with an alternate embodiment of the present invention.
  • Fig. 5 illustrates perspective view of a fuel system module having an integrated manifold for filling fuel (CNG) in accordance with an alternate embodiment of the present invention
  • Fig. 6 illustrates perspective view of a fuel system module having an integrated manifold for filling fuel (CNG) in accordance with an alternate embodiment of the present invention.
  • Fig. 7 illustrates perspective view of a fuel system module having an integrated manifold for filling fuel (CNG) in accordance with an alternate embodiment of the present invention.
  • Fig. 8 illustrates front and side view of the integrated manifold in accordance with an alternate embodiment of the present invention.
  • Figs. 9a and 9b illustrate a gaseous flow in the integrated manifold in accordance with an alternate embodiment of the present invention.
  • Figs. 10a and 10b illustrate a gaseous flow in the integrated manifold in accordance with an alternate embodiment of the present invention.
  • Figs. 11a and lib illustrates a gaseous flow in the integrated manifold in accordance with an alternate embodiment of the present invention.
  • Fig. 12 shows a graphical representation of flow rate v/s pressure for the fuel system module in accordance with the present invention.
  • a fuel system module with an integrated manifold for filling gaseous fuel (CNG) to the provided tank i.e. CNG tank for an internal combustion engine comprises of a manifold having a continuous fuel channel of about 4.6 - 8 mm diameter, preferably manufactured from corrosion resistant material such as, but not limited to aluminum, stainless steel, brass, plastic, etc.
  • the manifold is provided with suitable standard taper and/or straight threaded ports branched into the fuel channel to attach high pressure fittings for controlling the flow and essential mandatory equipment’s as per vehicle regulatory act such as, but not limited to high pressure gauge, NGV and NZS filling valve assembly, high pressure filter, automatic shut off valve, ignition switch (micro switch), high pressure sensor, manual shut off valve, etc.
  • the integrated manifold is provided with a filter assembly comprising of high pressure fittings , a filter bracket and a high pressure filter which receives the gaseous fuel (CNG) passing through the fuel channel and high pressure tubes at its inlet, and through its outlet feed the gaseous fuel (CNG) into a high pressure storage tank i.e. CNG tank. As per the vehicle requirement, more than one CNG tank is connected to the integrated manifold.
  • the ignition switch provided with integrated manifold is electrically connected with vehicle ignition key.
  • ignition switch When ignition switch is in off condition or dust cap is in open condition (dust cap is used over the NGV1/NGV2/NZS receptacle to operate the ignition switch), it does not allow vehicle to start.
  • dust cap remains in open condition and ignition switch is ON condition, so driver cannot crank the vehicle. It avoids any accident during filling that may occur in case filling nozzle is connected to filling valve and driver start running vehicle without knowing nozzle disconnection.
  • a fuel system module the manifold is provided with two natural gas filling valves, one manual and one automatic shut off valve and one pressure gauge wherein the natural gas filling valves include a combination amongst natural gas vehicle NGV2, natural gas vehicle NGV1 and a natural gas filling valve of New Zealand Standard (NZS).
  • the natural gas vehicle NGV1 and NGV2 are provided for fast filling and natural gas filling valve of New Zealand Standard NZS is provided for slow filling.
  • the natural gas filling valves control and regulate the flow of high-pressure natural gas i.e. CNG, through micro switches that are configured to control the engine ignition during filling as per the safety standards.
  • both valves are provided with either dust cap and/or lock pins to safe guard fuel system from dirt and dust and further to operate the micro switch.
  • the integrated manifold is equipped with one manual and one automatic shut off valve wherein the manual and automatic shutoff valves are configured to shut off the gaseous fuel (CNG) supply to engine when engine ignition is switched off.
  • CNG gaseous fuel
  • the manual shut off valve is used to manually shut off the CNG supply towards the engine. While, the automatic shut off valve is electronically operated and used to automatically shut off the supply towards the engine.
  • the automatic shut off valve is preferably positioned at the top of the integrated manifold and it is connected to vehicle ignition key and when engine is cranked, it gets on and allows CNG supply to engine. It is to prevent damage in case if fire in engine room. When driver switches off ignition, the automatic shut off valve stops CNG supply towards engine.
  • a fuel system module with integrated manifold is equipped with one natural gas filling valve, one pressure gauge; one manual and one automatic shut off valve wherein the manual and automatic shutoff valves are configured to shut off the gaseous fuel (CNG) supply to engine when engine ignition is switched off.
  • the natural gas filing valve is preferably natural gas vehicle NGV2.
  • a fuel system module with integrated manifold is equipped with two natural gas filling valves; one manual shut off valve; a pressure gauge and a pressure sensor.
  • the pressure gauge and pressure sensor are provided to monitor pressure in the flow path of incoming gaseous fuel (CNG) and while the gaseous fuel is filling in the CNG tank of vehicle.
  • CNG gaseous fuel
  • Fig. 1 and Fig. 2 illustrates perspective and top view of a fuel system module (1) having an integrated manifold (2), a pressure gauge (3) monitors pressure of main fuel channel/flow path of incoming gaseous fuel (CNG) and plurality of shut off valves i.e. an automatic shut off valve (4) and manual shut off valve (5) is configured to shut off the gaseous fuel (CNG) supply to engine when engine ignition is off.
  • integrated manifold (2) have plurality of gas filling vales i.e. natural gas vehicle (NGV1 and NGV2) (6) for fast filling and New Zealand Standard (NZS) (7) for slow filling.
  • NGV1 and NGV2 natural gas vehicle
  • NZS New Zealand Standard
  • gas filling valves are provided with either dust cap (8) and/or lock pins (9) to safe guard fuel system module from dirt/dust and further to operate the micro switch.
  • a manual rotary shut off valve (5) to communicate with the fuel channel and a filter assembly (10) is provided which receives the gaseous fuel (CNG) passing through the fuel channel (15) and high pressure tubes (14) at its inlet, and through its outlet feed the gaseous fuel (CNG) into a high pressure gaseous fuel line.
  • Said integrated manifold (2) has a fuel-channel (15) of diameter in the range of 4.6 to 8 mm has a flow rate in the range of 2.2 - 2.3 kg/m; said fuel system module (1) has a 4-5% increase in flow rate; and said fuel system module (1) has a 50-55% reduction in packaging space, a 50-55% reduction in overall weight, and a 40-45% reduction in number of joints.
  • Fig. 3 illustrates perspective view of the fuel system module (1) having an integrated manifold (2), a pressure gauge (3), a natural gas filling valve (NGV2) (6), a New Zealand standard (NZS) (7) filling valve, fittings (11) used to connect the other components i.e. fuel supply line, an automatic shut off valve (4), a manual shut off valve (5), an ignition switch (12) which is used as a safety device which is electrically connected with vehicle ignition key, when ignition switch is in off condition or dust cap is in open condition, it does not allow vehicle to start.
  • NVG2 natural gas filling valve
  • NZS New Zealand standard
  • Fig. 4 illustrates perspective view of the fuel system module (1) in accordance with an alternate embodiment of the present invention having an integrated manifold (2) with one natural gas filling valve i.e. natural gas vehicle (NGV2) (6), a pressure gauge (3), an automatic shut off valve (4), a manual shut off valve (5), fittings (11), an ignition switch
  • NVM2 natural gas vehicle
  • Fig. 5 illustrates perspective view of the fuel system module (1) in accordance with an alternate embodiment of the present invention having an integrated manifold (2), a natural gas filling valve (NGV2) (6), a natural gas filling valve (NGV1) (16), a pressure gauge (3), an automatic shut off valve (4), a manual shut off valve (5), plurality of ignition switch (12).
  • FIG. 6 illustrates perspective view of the fuel system module (1) in accordance with an alternate embodiment of the present invention having an integrated manifold (2), a natural gas filling valve (NGV2) (6), a new Zealand standard valve (NZS) (7), a pressure gauge (3), a high pressure connecting tube (14), a filter bracket (18) which is attached to the back of the integrated manifold (2), a high pressure filter (19) which is attached to the said filter bracket (18) and a high pressure fitting (17), an automatic shut off valve (4), a manual shut off valve (5), an ignition switch (12), a high pressure sensor (13).
  • NVM2 natural gas filling valve
  • NZS new Zealand standard valve
  • Fig. 7 illustrates perspective view of the fuel system module (1) in accordance with an alternate embodiment of the present invention having an integrated manifold (2), a natural gas filling valve (NGV2) (6), a natural gas filling valve (NGV1) (16), a pressure gauge (3), a high pressure connecting tube (14), a filter bracket (18) which is attached to the back of the integrated manifold (2), a high pressure filter (19) which is attached to the said filter bracket (18) and a high pressure fitting (17), an automatic shut off valve (4), a manual shut off valve (5), an ignition switch (12), a high pressure sensor (13).
  • NVG2 natural gas filling valve
  • NVM1 natural gas filling valve
  • Fig. 8 illustrates front and side view of the integrated manifold (2) in accordance with an alternate embodiment of the present invention having a through fuel channel (15) made into it of 4.6 - 8 mm diameter, and it is made up of corrosion resistance material such as, but not limited to aluminum, stainless steel, brass, plastic, etc.
  • the integrated manifold (2) comprises at least one port (20) for connecting the NZS filling valve, at least one port (21) for connecting the NGV filling valve, plurality of port (22) for connecting the filter bracket (18) of the filter assembly (10), at least one outlet (23) for connecting a gas tank filling port (28), an outlet (24) for connecting an engine supply port (29), an outlet (25) for connecting a manual shut off valve (5), an outlet (26) for optionally connecting an automatic shut off valve (4), a port (27) for connecting high pressure gauge (3).
  • the high pressure fittings (17) of filter assembly (10) are optionally connected on outlet (23).
  • Figs. 9a and 9b illustrate a gaseous flow in the integrated manifold (2) in accordance with an alternate embodiment of the present invention wherein integrated manifold (2) has one port (20) for slow filling through natural gas filling valve with New Zealand standard (NZS), one port (21) for fast filling through natural gas vehicle (NGV).
  • NZS New Zealand standard
  • NGWS New Zealand standard
  • NGWS New Zealand standard
  • NGWS New Zealand standard
  • NVG natural gas vehicle
  • the natural gas at a time flows from either port (20) or (21) for fast filling and slow filling respectively through fuel channel (15) to either outlet (23) for CNG tank filling or to outlet (24) for engine supply.
  • the gas flows towards outlet (27) connected to a high pressure gauge (3) and towards pressure sensor (13) for monitoring pressure in fuel channel (15) while filling the CNG tank or while being connected to engine supply.
  • Figs. 10a and 10b illustrate a gaseous flow in the integrated manifold (2) in accordance with an alternate embodiment of the present invention wherein integrated manifold (2) has one port (21) for fast filling through natural gas vehicle (NGV).
  • NVG natural gas vehicle
  • the natural gas travels from natural gas filling port (21) to either of two ports (23) for filling two separate CNG tanks and one port (24) for engine supply.
  • the engine supply of gas flow is controlled using a manual shut off valve (5) or automatic shut off valve (4).
  • the gas flows towards outlet (27) connected to pressure gauge (3) and towards outlet (26) connecting the automatic shut off valve (5).
  • Figs. 11a and lib illustrates a gaseous flow in the integrated manifold (2) in accordance with an alternate embodiment of the present invention wherein integrated manifold (2) has one port (20) for slow filling through natural gas filling valve with New Zealand standard (NZS), one port (21) for fast filling through natural gas vehicle (NGV).
  • NZS New Zealand standard
  • NGWS New Zealand standard
  • NGWS natural gas vehicle
  • the natural gas travels from natural gas filling port (21) to either of two ports (23) for filling two separate CNG tanks and one port (29) for engine supply.
  • the engine supply of gas flow is controlled using a manual shut off valve (5) or automatic shut off valve (4).
  • the gas flows towards outlet (27) connected to pressure gauge (3) and towards outlet (26) connecting the automatic shut off valve (5).
  • Fig. 12 shows a graphical representation of flow rate v/s pressure for the fuel system module.
  • the graphical representation shows that the flow rate of fuel system module with integrated manifold (2) has a flow rate in the range of 2.2-2.3 kg/m.
  • the flow rate obtained shows that there is a 4-5% increase in flow rate.
  • a comparative analysis between a convention fuel filing system and fuel system module with integrated manifold is given below in Table 1.
  • the integrated manifold (2) in the fuel system module (1) for filling gaseous fuel (CNG) reduces the overall packaging space by 50-55%, weight by 50-55% and number of joints by 40-45%.
  • a convention fuel filing system there are at least 17 joints and thus the large of joints make the conventional fuel filling system susceptible to failure.
  • the fuel system module (1) with integrated manifold (2) is cost effective.
  • the integrated manifold (2) for filling gaseous fuel (CNG) enhances performance by reducing friction losses which improves overall filling time of gaseous fuel tank.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

La présente invention se rapporte d'une manière générale à un module d'un système d'alimentation en carburant pour un véhicule automobile. L'invention concerne un collecteur intégré comportant des canaux ou des trous traversants pour former un canal de carburant, alimentant au moins un orifice à travers lequel une communication du carburant avec le canal de carburant est établie. Par conséquent, le collecteur intégré assure une injection et un stockage plus rapides de carburant gazeux tel que le GNC pour un moteur à combustion interne. Le collecteur intégré selon l'invention réduit également le coût global, le poids, les raccords, la taille et la défaillance potentielle, ce qui permet d'améliorer les performances.
PCT/IB2019/056538 2018-07-31 2019-07-31 Collecteur intégré pour moteur à combustion interne alimenté au gaz naturel Ceased WO2020031027A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201811028815 2018-07-31
IN201811028815 2018-07-31

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WO2020031027A1 true WO2020031027A1 (fr) 2020-02-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116576042A (zh) * 2023-04-18 2023-08-11 江苏普瑞亚动力科技有限公司 一种用于大功率发动机的气态氨燃料喷射系统
PL445749A1 (pl) * 2023-08-02 2025-02-03 Gaslux Spółka Z Ograniczoną Odpowiedzialnością Układ awaryjnego uruchamiania silnika diesla
PL445748A1 (pl) * 2023-08-02 2025-02-03 Gaslux Spółka Z Ograniczoną Odpowiedzialnością Układ awaryjnego uruchamiania silnika diesla

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6041762A (en) * 1996-08-16 2000-03-28 Impco Technologies, Inc. Control module for natural gas fuel supply for a vehicle
US6321775B1 (en) * 1998-10-27 2001-11-27 The Johns Hopkins University Compressed gas manifold

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6041762A (en) * 1996-08-16 2000-03-28 Impco Technologies, Inc. Control module for natural gas fuel supply for a vehicle
US6321775B1 (en) * 1998-10-27 2001-11-27 The Johns Hopkins University Compressed gas manifold

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116576042A (zh) * 2023-04-18 2023-08-11 江苏普瑞亚动力科技有限公司 一种用于大功率发动机的气态氨燃料喷射系统
CN116576042B (zh) * 2023-04-18 2023-11-21 江苏普瑞亚动力科技有限公司 一种用于大功率发动机的气态氨燃料喷射系统
PL445749A1 (pl) * 2023-08-02 2025-02-03 Gaslux Spółka Z Ograniczoną Odpowiedzialnością Układ awaryjnego uruchamiania silnika diesla
PL445748A1 (pl) * 2023-08-02 2025-02-03 Gaslux Spółka Z Ograniczoną Odpowiedzialnością Układ awaryjnego uruchamiania silnika diesla

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