WO2014160928A1 - Dispositif de commande et distributeur d'additif de carburant automatique - Google Patents

Dispositif de commande et distributeur d'additif de carburant automatique Download PDF

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Publication number
WO2014160928A1
WO2014160928A1 PCT/US2014/032159 US2014032159W WO2014160928A1 WO 2014160928 A1 WO2014160928 A1 WO 2014160928A1 US 2014032159 W US2014032159 W US 2014032159W WO 2014160928 A1 WO2014160928 A1 WO 2014160928A1
Authority
WO
WIPO (PCT)
Prior art keywords
additive
hydrostatic
liquid
port
pressure
Prior art date
Application number
PCT/US2014/032159
Other languages
English (en)
Inventor
Perry Anderson
Original Assignee
Liquid Automation LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liquid Automation LLC filed Critical Liquid Automation LLC
Publication of WO2014160928A1 publication Critical patent/WO2014160928A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
    • G01F23/165—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid of bubbler type
    • G01F23/168—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid of bubbler type with electric indicating or recording
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
    • G05D11/133—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components with discontinuous action
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/14—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding anti-knock agents, not provided for in subgroups F02M25/022 - F02M25/10
    • 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
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
    • 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
    • Y10T137/4673—Plural tanks or compartments with parallel flow

Definitions

  • the present invention pertains to fluid level sensing and additive dispensing. More particularly, the present invention relates to a Automatic Fuel Additive Controller and
  • Ultrasonic sensors have been used by some to read fluid levels .
  • the problem with ultrasonic sensors is that they reflect off of the first thing they come in contact with. This means that foam on the surface of the fluid will be read as fluid and give a false reading.
  • Figure 1 illustrates a network environment in which the method and apparatus of the invention may be implemented.
  • Figure 2 is a block diagram of a system which may implement some embodiments of the invention and where some embodiments of the invention may be used.
  • Figure 3 is a block diagram of one embodiment of the invention.
  • Figure 4 is a block diagram of one embodiment of the invention showing an air pump.
  • Figure 5 is a block diagram of one embodiment of the invention showing multiple tanks and a control module.
  • Figure 6 shows various embodiments of the invention.
  • the invention in one embodiment is used in fluid systems and more particularly is an apparatus and method for sensing fluid levels in fluid systems and adding an additional gas or fluid based on the level or change in level of the liquid.
  • Figure 3 illustrates, generally at 300, one embodiment of the invention showing a fluid container 302 having a fluid level 304 of a fluid 318.
  • a hydrostatic sensing tube extending into the fluid container 302 and in communication with pressure sensor 308.
  • At 310 is an atmosphere line in communication with pressure sensor 308.
  • At 312 is an air pump in communication via air pressure tube 314 with hydrostatic sensing tube 306. When air pump 312 is in operation it can produce air bubbles 316.
  • 320 is a circuit board (also called a printed circuit board (PCB)) having thereon components and assemblies.
  • PCB printed circuit board
  • FIG. 4 illustrates, generally at 400, one embodiment of the invention.
  • At 402 is an air pump in fluid communication via air tube 404 with a hydrostatic tube / pressure tube 406 which is situated in a fluid vessel 408 having a fluid level 410.
  • Pressure sensor 412 is in communication with air tube 404 and hydrostatic tube / pressure tube 406 on one side, and in communication with ambient port 414 on the other side.
  • an optional vent in vessel 416 is between the fluid vessel 408 and the ambient port 414.
  • FIG. 5 illustrates, generally at 500, one embodiment of the invention.
  • control module 502 also has an accelerometer, a cellular card, a GPS, a pressure sensor 1, and air pump 1, a pressure sensor 2, and air pump 2, a pressure sensor 3, and an air pump 3 all in communication with a CPU.
  • Control module 502 in this embodiment has an I/O link 504 serial output / USB.
  • Associated with each air pump (1, 2, and 3) are respectively an air check valve 506, 508, and 510.
  • Additive tank 512 has connected to it pump 514 and pump 516 which are controlled by control module 501 via link 518.
  • pump 514 is in communication with fuel tank right 520
  • pump 516 is in communication with fuel tank left 522
  • fuel tank right 520 is in communication with pressure sensor 1 and air check valve 506.
  • fuel tank left 522 is in communication with pressure sensor 2 and air check valve 508.
  • additive tank left 512 is in communication with pressure sensor 3 and air check valve 510.
  • the invention is an apparatus and method for measuring fluid levels in a fluid tank during a refueling event and dispensing a fuel additive in measured amounts.
  • the apparatus comprises a hollow sensing tube sealed to a pressure sensor.
  • the pressure sensor measures air column pressure as a function of hydrostatic pressure within the fluid tanks.
  • fuel additive can automatically be added during a refueling event by tracking the rise in fuel level in the fuel tank and then the controller can automatically add a prescribed amount of fuel additive while the fuel is being delivered into the fuel tank for a better mix.
  • One embodiment of this invention can be mounted to the container holding fluid or can be remotely mounted.
  • this fluid level sensor may be replacing a standard fuel tank sender that has a SAE 5 hold bolt pattern (SAE denotes Society of Automotive Engineers).
  • SAE Society of Automotive Engineers
  • the hydrostatic sensing tube and optionally the atmosphere line may be mounted using a NPT fitting (e.g. 1/2") (NPT denotes National Pipe Thread).
  • NPT National Pipe Thread
  • this invention can also be mounted remotely and connected by two tubes that are in gaseous communication with said fluid container.
  • the hydrostatic sensing tube may be mounted in a 1/2" NPT fitting designated for a pressure vent.
  • the invention uses a fluid level sender without moving parts to increase accuracy and reliability.
  • Hydrostatic senders utilize a pressure sensor connected to a hollow tube that is inserted into the fluid tank to a position near the bottom of the tank. The air column pressure in the tube will be equal to the hydrostatic pressure caused by the fluid.
  • the height of the fluid can be determined by the pressure reading if the density of the fluid is known. The height that is being measured is the distance between the fluid surface and the meniscus level inside the sensing tube.
  • the meniscus level may change, for example, as a function of leakage in the tube/ sensor connection, fluid absorbing the air, temperature fluctuations, altitude, compressibility of the air column in the sensing tube, and / or the tilt angle of the tube a novel approach is used to lessen and/or eliminate these factors by purging the sensing tube prior to measurement.
  • a fluid level sensing device has an auto purge capability to keep the hydrostatic pressure sensing tube full of air or other gas to insure an accurate fluid level reading.
  • the sensor is in communication with a microcontroller or other digital device to add further functionality.
  • the invention solves the problem of the column of air or gases being absorbed into the liquid or during a change in atmospheric pressure such as a change in altitude or during a change in temperature when the air that is trapped in the tube may expand and be expelled out the bottom of the tube. When the fluid cools or the altitude or atmospheric pressure or temperature lowers or cools the result will be an inaccurate fluid level measurement due to the air or gas volume being reduced.
  • the invention includes a pressure sensor in gaseous
  • This air pump is programmed to turn on at certain intervals to add air to the hydrostatic sensing tube that will blow air or other gases into the hydrostatic sensing tube and will overwhelm this sensing tube as to ensure all fluid is pushed and purged out of this hydrostatic sensing tube. In one embodiment of the invention it only takes fluid readings during or after the purge cycle was initiated. This will accurately measure the fluid level in a fluid container.
  • the atmospheric port on the pressure sensor is in gaseous communication with the fluid container. This solves a problem with inaccurate fluid level readings if the tank is pressurized such as when the fluid container is being filled with fluid. Air pressure or gaseous pressure is created within said container during a refilling or refueling event. This will enable the pressure sensor to properly display the real fluid level as a fluid differential pressure without being affected by pressure build up in the fluid container.
  • the invention precisely injects, pumps or flows fuel additives into the fuel tanks being refueled to better mix fuel additives and eliminates human error.
  • This invention in one embodiment, keeps track of the refueling event and reports the amount of fuel that was added to a fuel tank and also reports how much fuel additive was added by way of a cell phone, cell card or other wireless device to other devices or cell phones.
  • a hydrostatic pressure sensor tube inserted into the fluid to report liquid level.
  • Cell and / or wireless card to receive queries and updates to a controller.
  • Accelerometer to monitor movement, level and vibration or impact.
  • GPS global positioning system
  • the invention monitors fuel levels and automatically injects a fuel additive when the tank is filled.
  • the system has a sensor that is installed into the vent fitting of a fuel tank .
  • This sensor has 1) a pressure sensor 2) a hollow tube entering the tank through the vent fitting and extending close to the bottom of the tank, and 3)an air pump .
  • the air pump blows through a check valve into the tube to clear any fluid that may !have entered due to compression, absorption or leaks.
  • Once the fluid is fully evacuated the pressure inside the hollow tube is read . This pressure is then used to calculate the height of the fluid in the tank. This height is then converted to volume based on the dimensions of the tank.
  • the air pump runs for a predetermined time to purge the hollow tube of any liquid.
  • a controller monitors the level of fuel in a tank and maintains a baseline reading of the fuel level. When the fuel level starts to rise the controller starts a "Fueling Event". When the fuel level stops rising the controller calculates the amount of fuel added by subtracting the new fuel amount from the baseline.
  • the unit pumps the proper amount of additive from the additive reservoir into the fuel tank .
  • the controller can be configured to adjust the ratio of additive to be applied based on the additive manufacturer's recommendation .
  • the system transmits the event data to a database using a cellular modem. This information can then be viewed by customers, for example, by using a web portal.
  • the system can be used on any shape or size of tank and can be configured for vehicles with one or multiple tanks.
  • the system monitors fluid levels and
  • the current system is a self contained system that attaches to the frame of a truck. This unit contains an additive reservoir, fuel level sensors, an additive pump with solenoids and electronics used for logic and to transmit data to an external database.
  • Other applications include marine applications, locomotives, generators, industrial equipment, bulk storage such as gas stations or any other application requiring additives or chemical dosing.
  • Figure 6 illustrates various embodiments of the invention as indicated below.
  • An apparatus comprising a hydrostatic tube having a first end and a second end wherein said first end is in liquid communication with a liquid and said second end is in gaseous communication with a pressure sensor and a gaseous pump.
  • the apparatus of claim 1 further comprising an entity selected from the group consisting of a mounting plate having a SAE 5-Bolt pattern wherein said hydrostatic tube said first end is distal to said SAE 5-Bolt pattern, and a NPT fitting wherein said hydrostatic tube said first end is distal to said NPT fitting.
  • a method comprising pumping air into a hydrostatic sensing tube for a predetermined time to purge said hydrostatic tube of a liquid, and measuring pressure in said hydrostatic sensing tube after said predetermined time.
  • the method of claim 5 further comprising: transforming said measured pressure into an indicator of a liquid level; comparing said liquid level to a predetermined liquid level; transforming said comparison into one of several control states; and communicating said control state to an additive pump.
  • An apparatus comprising: one or more tanks, said one or more tanks each having a hydrostatic measuring port and an additive port; one or more additive pumps said one or more additive pumps coupled to said additive port and to one or more additive tanks; and one or more gaseous pumps said one or more gaseous pumps coupled to said hydrostatic port.
  • Figure 1 illustrates a network environment 100 from which the techniques described may be accessed and/or controlled.
  • the network environment 100 has a network 102 that connects S servers 104-1 through 104-S, and C clients 108-1 through 108-C. More details are described below.
  • FIG 2 is a block diagram of a system 200 which some embodiments of the invention may employ parts of in conjunction with required specialized hardware and which may be representative of use in any of the clients and/or servers shown in Figure 1, as well as, devices, clients, and servers in other Figures. More details are described below.
  • FIG. 1 illustrates a network environment 100 in which the techniques described may be accessed and/or controlled.
  • the network environment 100 has a network 102 that connects S servers 104-1 through 104-S, and C clients 108-1 through 108-C.
  • S servers 104-1 through 104-S and C clients 108-1 through 108-C are connected to each other via a network 102, which may be, for example, a corporate based network.
  • the network 102 might be or include one or more of: the Internet, a Local Area Network (LAN), Wide Area Network (WAN), satellite link, fiber network, cable network, or a combination of these and/or others.
  • the servers may represent, for example, disk storage systems alone or storage and computing resources.
  • the clients may have computing, storage, and viewing capabilities.
  • the method and apparatus described herein may be accessed and/or controlled by essentially any type of communicating means or device whether local or remote, such as a LAN, a WAN, a system bus, etc.
  • a network connection which communicates via for example wireless may control an embodiment of the invention having a wireless communications device.
  • the invention may find application at both the S servers 104-1 through 104-S, and C clients 108-1 through 108-C.
  • FIG. 2 illustrates a system 200 in block diagram form, which may be representative of any of the clients and/or servers shown in Figure 1.
  • the block diagram is a high level conceptual representation and may be implemented in a variety of ways and by various architectures.
  • Bus system 202 interconnects a Central Processing Unit (CPU) 204, Read Only Memory (ROM) 206, Random Access Memory (RAM) 208, storage 210, display 220, audio, 222, keyboard 224, pointer 226, miscellaneous input/output (I/O) devices 228 via link 229, and communications 230 via port 232.
  • CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the bus system 202 may be for example, one or more of such buses as a system bus, Peripheral Component Interconnect (PCI), Advanced Graphics Port (AGP), Serial ATA (SAT A), Institute of Electrical and Electronics Engineers (IEEE) standard number 1394 (Fire Wire), Universal Serial Bus (USB), etc.
  • the CPU 204 may be a single, multiple, or even a distributed computing resource.
  • Storage 210 may be Compact Disc (CD), Digital Versatile Disk (DVD), hard disks (HD), optical disks, tape, flash, memory sticks, video recorders, etc., all non-transitory medium.
  • Display 220 might be, for example, used by an embodiment of the present invention.
  • a thin client might consist of a wireless hand held device that lacks, for example, a traditional keyboard.
  • a traditional keyboard for example
  • An apparatus for performing the operations herein can implement the present invention.
  • This apparatus is specially constructed for the required purposes, or it may comprise a general-purpose controller, selectively activated or reconfigured by a program stored in the system, however it is not software alone.
  • a program may be stored in a non-transitory readable storage medium, such as, but not limited to, any type of disk including floppy disks, hard disks, optical disks, compact disk- read only memories (CD-ROMs), and magnetic-optical disks, read-only memories (ROMs), random access memories (RAMs), electrically
  • EPROM programmable read-only memories
  • EEPROM electrically erasable programmable read-only memories
  • FLASH memories magnetic or optical cards, etc., or any type of non- transitory media suitable for storing electronic instructions either local to the system or remote to the system.
  • any of the methods according to the present invention can be implemented in hard-wired circuitry specifically designed for the functionality disclosed, or by programming special hardware having, for example, in one embodiment, a particular machine such as a CPU specifically designed with a 16 bit or greater barrel shift register and a carry look ahead arithmetic logic unit.
  • a particular machine such as a CPU specifically designed with a 16 bit or greater barrel shift register and a carry look ahead arithmetic logic unit.
  • Applicant submits that any results are tied to a particular machine or apparatus and/or transform a particular article into a different non- transitory state or thing and that such particulars and/or things are non- trivial.
  • Figure 220 is a display.
  • the results of the specialized machine may return an electronic value and such a value can be stored in hardware on the specialized machine and transformed into a graphical representation that can be displayed to a user of the specialized machine.
  • the returned value may be stored as a group of physical electrons on a trapped gate of a flash memory device.
  • These physical electrons may then be transformed into a graphical representation, for example, by twisting the molecules of a liquid crystal display so that a carrier signal can be modulated and produces on reception a molecular change in a rod and cone receptor of a human user to produce physical electrons thus producing a tangible useful result and transformation tied to a particular machine such as a system specifically designed with a 16 bit or greater barrel shift register and a carry look ahead arithmetic logic unit.
  • the specialized hardware is required for logical operations and comparisons of values.
  • the returned value may be stored as a series of holes on a paper tape that may be read by a person (e.g. a blind person) by tactile sensation (e.g. output from a KSR-33 Teletype).
  • a person e.g. a blind person
  • tactile sensation e.g. output from a KSR-33 Teletype
  • the methods of the invention may be implemented using specialized hardware as noted supra.
  • the methods of the invention cannot be implemented in software per se. If written in a programming language conforming to a recognized standard, sequences of instructions designed to implement the methods on specialized hardware can be compiled for execution on the specialized hardware.
  • the present invention is not described with reference to any particular programming language. It will be appreciated that a variety of programming languages may be used to implement the teachings of the invention on specialized hardware as described herein.
  • a machine-readable medium is understood to include any non-transitory mechanism for storing or transmitting information in a form readable by a machine.
  • a non- transitory machine-readable medium includes read only memory (ROM); random access memory (RAM); magnetic disk storage media; optical storage media; flash memory devices; and devices having non-transitory storage.
  • one embodiment or “an embodiment” or similar phrases means that the feature(s) being described are included in at least one embodiment of the invention. References to “one embodiment” in this description do not necessarily refer to the same embodiment; however, neither are such embodiments mutually exclusive. Nor does “one embodiment” imply that there is but a single embodiment of the invention. For example, a feature, structure, act, etc. described in “one embodiment” may also be included in other embodiments. Thus, the invention may include a variety of combinations and/or integrations of the embodiments described herein.
  • Applicant has availed himself of the legal right to be his own lexicographer and such terms as, but not limited to, hydrostatic sensing tube, etc. have specific meanings as denoted and/or explained..

Abstract

L'invention porte sur un dispositif de commande et sur un distributeur d'additif de carburant automatique. Dans une réalisation, une pompe est utilisée pour purger un tube de détection hydrostatique de liquide avant la mesure.
PCT/US2014/032159 2013-03-28 2014-03-28 Dispositif de commande et distributeur d'additif de carburant automatique WO2014160928A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201361806369P 2013-03-28 2013-03-28
US61/806,369 2013-03-28
US14/227,739 US20140294606A1 (en) 2013-03-28 2014-03-27 Automatic Fuel Additive Controller and Dispenser
US14/227,739 2014-03-27

Publications (1)

Publication Number Publication Date
WO2014160928A1 true WO2014160928A1 (fr) 2014-10-02

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PCT/US2014/032159 WO2014160928A1 (fr) 2013-03-28 2014-03-28 Dispositif de commande et distributeur d'additif de carburant automatique

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US (1) US20140294606A1 (fr)
WO (1) WO2014160928A1 (fr)

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