WO2023120588A1 - Moteur d'automobile - Google Patents

Moteur d'automobile Download PDF

Info

Publication number
WO2023120588A1
WO2023120588A1 PCT/JP2022/047160 JP2022047160W WO2023120588A1 WO 2023120588 A1 WO2023120588 A1 WO 2023120588A1 JP 2022047160 W JP2022047160 W JP 2022047160W WO 2023120588 A1 WO2023120588 A1 WO 2023120588A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
mist
rpm
combustion chamber
engine
Prior art date
Application number
PCT/JP2022/047160
Other languages
English (en)
Japanese (ja)
Inventor
繁 種田
正己 奥山
Original Assignee
株式会社Ｈｓｅ研究所
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 株式会社Ｈｓｅ研究所 filed Critical 株式会社Ｈｓｅ研究所
Publication of WO2023120588A1 publication Critical patent/WO2023120588A1/fr

Links

Images

Classifications

    • 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
    • F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
    • F02B47/02—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being water or steam
    • 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
    • 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
    • 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
    • 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
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/025—Adding water
    • 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
    • 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 to an automobile engine mounted on an automobile.
  • a hydrogen engine a first water injection means for injecting water into a combustion chamber of a corresponding cylinder provided for each cylinder of the hydrogen engine or into an intake port communicating with the combustion chamber, and an intake manifold to each intake port of the hydrogen engine.
  • a second water injection means for injecting water into an intake passage connected via an intake passage or an intake passage disposed in an intake manifold or into an intake manifold; detection means for detecting the occurrence of fire; and, when the detection means detects the occurrence of backfire in the intake path of a certain cylinder, based on one or more physical quantities that change due to the occurrence of backfire, provided for the cylinder.
  • the amount of water to be injected by the first water injection means and the amount of water to be injected by the second water injection means are determined, and the first water injection means provided for each cylinder is arranged to inject the determined amount of water.
  • a hydrogen engine system including a water injection means and a control means for controlling the second water injection means is disclosed (see Patent Document 1).
  • the hydrogen engine system disclosed in Patent Document 1 injects water into the combustion chamber of the cylinder or into the intake port communicating with the combustion chamber, and also into the intake passage or the intake manifold arranged in the intake manifold. By injecting water, it is possible to suppress excessive heating of the intake manifold due to backfire.
  • this hydrogen engine system injects water into the combustion chamber of the cylinder, the intake port that communicates with the combustion chamber, the intake passage, the intake passage arranged in the intake manifold, and the intake manifold. No conversion.
  • An object of the present invention is to convert the steam energy of vaporized mist water together with the combustion energy of hydrogen gas into engine power, and to obtain a predetermined engine output from the combustion energy and the steam energy. Another object of the present invention is to provide an automobile engine capable of running an automobile by the combustion energy of hydrogen and the steam energy of water mist. Another object of the present invention is to be able to increase the steam energy as the engine speed (rpm) increases and to increase the engine power (kW) as the engine speed (rpm) increases. To provide an automobile engine.
  • the premise of the present invention for solving the above problems is to have a cylinder with a predetermined volume, a piston that reciprocates in the combustion chamber of the cylinder, and a spark plug that ignites fuel in the combustion chamber of the cylinder, and is mounted on an automobile. It is an automobile engine that uses hydrogen gas as fuel.
  • the automobile engine includes a hydrogen gas nozzle that directly injects hydrogen gas into the combustion chamber of the cylinder, and a mist nozzle that supplies mist-like water to the combustion chamber of the cylinder, and the engine
  • the compression ratio of is in the range of 14:1 to 15:1, and in an automobile engine, hydrogen gas is supplied to the combustion chamber of the cylinder from the hydrogen gas nozzle, and water mist is supplied to the cylinder from the mist nozzle.
  • the hydrogen gas in the combustion chamber is supplied with water and compressed to a predetermined compression ratio by the piston. and convert the combustion energy of the hydrogen gas and the steam energy of the vaporized mist water into motive power.
  • the water supply amount (cc) of mist water supplied to the combustion chamber is increased as the engine speed (rpm) increases.
  • the amount of water mist supplied to the combustion chamber of one cylinder at a speed of 400 rpm or more and less than 1100 rpm of an automobile engine is in the range of 22 to 24 cc, and at a speed of 1100 rpm or more and less than 1500 rpm.
  • the amount of water mist supplied to the combustion chamber of one cylinder is in the range of 29 to 31 cc. and the water supply amount of atomized water supplied to the combustion chamber of one cylinder at the rotational speed of 2000 rpm or more and less than 2600 rpm is in the range of 45 to 47 cc.
  • the amount of water mist supplied to the combustion chamber of one cylinder at a speed of 2600 rpm or more and less than 3500 rpm of an automobile engine is in the range of 53 to 55 cc, and at a speed of 3500 rpm or more and less than 4500 rpm.
  • the amount of water mist supplied to the combustion chamber of one cylinder is in the range of 60 to 62 cc, and the amount of water mist supplied to the combustion chamber of one cylinder at the rotation speed of 4500 rpm or more and less than 6000 rpm is 68 to 70 cc. and the amount of water mist supplied to the combustion chamber of one cylinder at a rotation speed of 6000 rpm or more is in the range of 76 to 78 cc.
  • an automobile engine includes a temperature sensor installed in a cylinder to measure the combustion temperature of the combustion chamber, and in the automobile engine, the combustion temperature of the combustion chamber measured by the temperature sensor is the upper limit temperature. is reached, the amount of water mist supplied to the combustion chamber of one cylinder is increased to keep the combustion temperature of the combustion chamber below the upper limit temperature.
  • the upper limit combustion temperature of the combustion chamber is 400° C.
  • Atomized water is supplied to the combustion chamber of one cylinder with a water supply amount of 1 to 4 cc added to the water supply amount.
  • an automobile engine includes a water mist generating pipe that generates a mist of water, and the water mist generating pipe removes impurities contained in the air flowing therein.
  • An air filter and an electronically controlled throttle installed downstream of the air filter for adjusting the flow rate of air are provided, and a mist nozzle is installed downstream of the electronically controlled throttle in the misty water generating pipe and is installed in the misty water generating pipe. A mist of water is sprayed into the pipe.
  • the mist nozzle has a spray surface that draws a semicircular arc toward the inside of the water mist generating pipe, and a plurality of spray ports for spraying water mist, Perforated on the atomizing surface.
  • the average particle size of the water mist sprayed from the mist nozzle is in the range of 30 to 55 ⁇ m.
  • the average particle size ( ⁇ m) of the water mist that is sprayed into the water mist generating tube is increased.
  • the mist nozzle has an average particle diameter of 30 to 35 ⁇ m in the mist nozzle sprayed from the mist nozzle at a speed of 400 rpm or more and less than 1500 rpm of an automobile engine, and a mist nozzle at a speed of 1500 rpm or more and less than 3500 rpm.
  • the average particle size of the water mist sprayed from the mist nozzle is in the range of 40 to 45 ⁇ m, and the average particle size of the water mist sprayed from the mist nozzle at a rotation speed of 3500 rpm or more is in the range of 50 to 55 ⁇ m.
  • hydrogen gas is supplied from the hydrogen gas nozzle to the combustion chamber of the cylinder, and mist-like water is supplied from the mist nozzle to the combustion chamber of the cylinder, and a predetermined amount of water is supplied by the piston.
  • the hydrogen gas in the combustion chamber compressed to the compression ratio is ignited by a spark plug, and while the hydrogen gas is being burned, the mist-like mist water is vaporized by the combustion heat of the hydrogen gas, and the combustion energy of the hydrogen gas is vaporized. Since the steam energy of the atomized water is converted into power, the steam energy of the vaporized water atom can be converted into the power of the engine together with the combustion energy of the hydrogen gas. Engine output can be obtained, and the vehicle can be driven by the combustion energy of the hydrogen gas and the steam energy of the water mist.
  • An automobile engine which increases the water supply amount (cc) of mist water supplied to the combustion chamber as the engine speed (rpm) increases, is designed to supply mist water to the combustion chamber as the engine speed (rpm) increases.
  • the water feed rate (cc) By increasing the water feed rate (cc), the vapor energy of the vaporized mist water can be increased as the engine speed (rpm) increases, and as the engine speed (rpm) increases, As a result, the engine output (kW) can be increased, and the engine can be smoothly shifted from low-speed rotation to high-speed rotation.
  • the amount of mist water supplied to the combustion chamber of one cylinder at the rotation speed of 400 rpm or more and less than 1100 rpm is in the range of 22 to 24 cc, and the water mist supplied to the combustion chamber of one cylinder at the rotation speed of 1100 rpm or more and less than 1500 rpm.
  • Amount of water in the range of 29 to 31 cc, water supply amount of atomized water to the combustion chamber of one cylinder at the rotation speed of 1500 rpm or more and less than 2000 rpm is in the range of 37 to 39 cc, and the combustion chamber of one cylinder at the rotation speed of 2000 rpm or more to less than 2600 rpm
  • the amount of water mist supplied to the engine is in the range of 45 to 47 cc.
  • the steam energy of the vaporized mist water can be increased as the engine speed (rpm) increases, and the engine output (kW) can be increased as the engine speed (rpm) increases. It is possible to smoothly shift the engine from low speed rotation (400 rpm or more and less than 1100 rpm) to medium speed rotation (2000 rpm or more and less than 2600 rpm).
  • the amount of water mist supplied to the combustion chamber of one cylinder at a rotation speed of 2600 rpm or more and less than 3500 rpm is in the range of 53 to 55 cc.
  • the amount of mist water supplied to the combustion chamber of one cylinder at a rotation speed of 4500 rpm or more and less than 6000 rpm is in the range of 60 to 62 cc, and the water supply amount is in the range of 68 to 70 cc.
  • the amount of water mist supplied to the combustion chamber increases to 52 cc to 77 cc as the engine speed increases from 2600 rpm to 6000 rpm or more.
  • the engine power (kW) increases as the engine speed (rpm) increases.
  • the engine can be smoothly shifted from middle speed rotation (2600 rpm or more and less than 3500 rpm) to high speed rotation (6000 rpm or more).
  • a temperature sensor installed in the cylinder to measure the combustion temperature of the combustion chamber is included, and when the combustion temperature of the combustion chamber measured by the temperature sensor reaches the upper limit temperature, the water supply of atomized water is supplied to the combustion chamber of one cylinder.
  • An automobile engine that increases the amount of water and keeps the combustion temperature in the combustion chamber below the upper limit temperature increases the amount of water mist supplied to the combustion chamber of one cylinder when the upper limit temperature is reached. The increased mist water can cool the combustion chamber, lower the temperature of the combustion chamber below the upper limit temperature, and prevent accidental overheating of the engine.
  • the upper limit combustion temperature of the combustion chamber is 400°C, and when the combustion temperature of the combustion chamber measured by the temperature sensor reaches 400°C, the amount of water supply added 1 to 4cc to the amount of water supply according to the rotation speed is in the form of mist.
  • the amount of water mist supplied to the combustion chamber of one cylinder should be increased by 1 to 4 cc. , the combustion chamber can be cooled by the increased mist water, the temperature of the combustion chamber can be lowered below the upper limit temperature, and inadvertent overheating of the engine can be prevented.
  • misty water generating pipe that generates misty water
  • an air filter that removes impurities contained in the air flowing into the misty water generating pipe
  • an air filter that is installed downstream of the air filter to reduce the flow rate of the air.
  • an electronically controlled throttle for adjusting the mist, and a misting nozzle is installed downstream of the electronically controlled throttle in the water mist generating tube to spray a mist of water into the tube of the water mist generating tube.
  • a mist nozzle has a spray surface forming a semicircular arc toward the inside of a pipe for generating mist, and a plurality of spray holes for spraying mist water are perforated on the spray surface. Since the water mist is sprayed from a plurality of spray ports on the spray surface that draws a semicircular arc, the water mist can be sprayed evenly inside the water mist generating pipe, and all The water mist can be evenly supplied to the combustion chamber of the cylinder, and the steam energy of the water mist vaporized together with the combustion energy of the hydrogen gas can be reliably converted into the power of the engine.
  • the average particle size of the water mist sprayed from the mist nozzle is in the range of 30 to 55 ⁇ m
  • the average particle size is Since the atomized water of particle size is supplied to the combustion chambers of all cylinders, the atomized water can be reliably vaporized in the combustion chambers of those cylinders, and the atomized water is vaporized together with the combustion energy of the hydrogen gas. of steam energy can be used to power the engine.
  • An automobile engine that increases the average particle size ( ⁇ m) of mist water sprayed into the pipe of the mist water generating pipe as the engine speed (rpm) increases is designed to increase the fog as the engine speed (rpm) increases.
  • the steam energy of the vaporized mist water is increased as the engine speed (rpm) increases.
  • the engine output (kW) can be increased, and the engine can be smoothly shifted from low speed rotation to high speed rotation.
  • the average particle size of mist water sprayed from a mist nozzle at a speed of 400 rpm or more and less than 1500 rpm of an automobile engine is in the range of 30 to 35 ⁇ m, and the average particle size of the mist water sprayed from a mist nozzle at a speed of 1500 rpm or more and less than 3500 rpm.
  • An automobile engine with a diameter of 40 to 45 ⁇ m and an average particle diameter of mist water sprayed from a mist nozzle at a rotation speed of 3500 rpm or more is in a range of 50 to 55 ⁇ m.
  • the steam energy of the vaporized atomized water is increased as the engine speed (rpm) increases.
  • the engine output (kW) can be increased as the engine speed (rpm) increases, and the engine can be smoothly shifted from low speed rotation to high speed rotation.
  • 1 is a top view of an automobile equipped with an automobile engine;
  • FIG. 2 is a top view of the automobile 11 on which the automobile engine 10 is mounted
  • FIG. 3 is a rear view of the automobile 11 on which the automobile engine 10 is mounted
  • FIG. 4 is a layout diagram of each device and piping shown as an example
  • FIG. 5 is a configuration diagram of an automobile engine 10 shown as an example
  • FIG. 6 is a diagram showing an example of mist nozzles 38a to 38c
  • FIG. 7 is a diagram showing the relationship between the engine speed of the automobile engine 10 and the amount of water mist supplied.
  • An automobile engine 10 according to the present invention is mounted on an automobile 11 and uses hydrogen gas as its fuel.
  • the type of automobile 11 in which the automobile engine 10 is mounted is not particularly limited.
  • An automobile 11 shown as an example has an automobile engine 10 mounted in a front area 12 (engine room), and a hydrogen gas tank 15 (high-pressure tank) and a water pump unit 16 (see FIG. 4) installed in a rear area 14 (tank room).
  • a water tank 17 is arranged in the intermediate area 13 .
  • the hydrogen gas tank 15 contains gaseous hydrogen at 700 atmospheres. Replenishment of hydrogen gas to the hydrogen gas tank 15 is performed at a hydrogen station. Hydrogen gas is supplied from a hydrogen gas filling port (not shown) of the hydrogen gas tank 15 .
  • the water tank 17 contains tap water (preferably pure water). The water tank 17 is replenished with tap water or pure water from a water filling port (not shown).
  • hydrogen gas is supplied to the automobile engine 10 from the hydrogen gas tank 15 , water mist is generated from pure water supplied from the water tank 17 , and the water mist is supplied (sprayed) to the engine 10 . be.
  • the engine control unit 18 is a physical computer with a central processing unit (CPU or MPU), memory (main memory and cache memory), and mass storage.
  • an idling adjustment valve 19 In the front area 12 (engine room), there are an idling adjustment valve 19, a pressure gauge 20, a fuel supply amount control unit 21, a hydrogen gas nozzle unit 22 installed in the automobile engine 10, and a water mist connected to the automobile engine 10.
  • a generation pipe 23, a water supply amount control unit 24, and a sub electromagnetic valve 25 are installed.
  • a hydrogen gas tank 15 and a low-pressure sub-tank 26 are installed in the rear area 14 (tank room).
  • the hydrogen gas tank 15 is provided with a check valve 27, a pressure reducing valve 28, and a hydrogen gas filling port (not shown).
  • the idling adjustment valve 19 is installed in a pipe 29a (copper pipe) extending between the low-pressure sub-tank 26 in the rear area 14 (tank room) and the fuel supply amount control unit 21.
  • the idling adjustment valve 19 adjusts the idling speed by adjusting the flow rate of hydrogen gas flowing through the pipe 29a while the automobile engine 10 is in operation.
  • the idling adjustment valve 19 is connected to the engine control unit 18 via a signal line (not shown), and its opening/closing and degree of opening are controlled by the engine control unit 18 .
  • the engine control unit 18 uses the idling adjustment valve 19 to control the idling rotation speed, and aims to improve fuel efficiency, maintain a stable idle state, and prevent engine stalling by reducing the idle rotation speed in the idling state of the engine 10 .
  • the idling speed control includes start correction, engine water temperature correction, air conditioner operation correction, D range correction for AT vehicles, and the like.
  • the pressure gauge 20 is arranged downstream of the idling adjustment valve 19 and installed in a pipe 29 a extending between the low pressure sub-tank 26 and the fuel supply amount control unit 21 .
  • the pressure gauge 20 measures the gas pressure of hydrogen gas flowing through the pipe 29a.
  • the pressure gauge 20 is connected to the engine control unit 18 via a signal line (not shown), and transmits to the engine control unit 18 the gas pressure of hydrogen gas measured while the automobile engine 10 is running.
  • a sub-electromagnetic valve 26 and a gas block 30 are installed in a pipe 29a extending between the low-pressure sub-tank 26 and the fuel supply amount control unit 21.
  • the sub-electromagnetic valve 26 and the gas block 30 are connected to the engine control unit 18 via signal lines (not shown), and their opening and closing are controlled by the engine control unit 18 .
  • the gas block 30 has its valve mechanism closed in an emergency such as when hydrogen gas leaks inside the company for some reason, and shuts off hydrogen gas leakage.
  • the fuel supply amount control unit 21 is arranged downstream of the pressure gauge 20 and connected to the low-pressure sub-tank 28 (hydrogen gas tank 15) via a pipe 29a (copper pipe).
  • a plurality of check valves 31 are installed in the fuel supply amount control unit 21 .
  • the fuel supply amount control unit 21 is connected to the engine control unit 18 via a signal line (not shown), and the engine control unit 18 controls the opening/closing and the degree of opening of the check valve 31 .
  • the fuel supply amount control unit 21 adjusts the opening degree of each check valve 31 according to a control signal from the engine control unit 18 while the automobile engine 10 is running, and adjusts the amount of hydrogen gas injected from each hydrogen gas nozzle 32. (The amount of hydrogen gas supplied to the combustion chamber 37 of each cylinder 36) is adjusted.
  • the hydrogen gas nozzle unit 22 is arranged downstream of the fuel supply amount control unit 21 .
  • a plurality of hydrogen gas nozzles 32 are arranged inside the hydrogen gas nozzle unit 22 .
  • piping 29 b (copper pipe) extending from each check valve 31 of the fuel supply amount control unit 21 is connected to the hydrogen gas nozzles 32 of the hydrogen gas nozzle unit 22 .
  • Hydrogen gas is supplied (supplied) from each check valve 31 to each hydrogen gas nozzle 32 through a pipe 29b, and hydrogen gas is injected (supplied) from each hydrogen gas nozzle 32 toward a combustion chamber 37 of each cylinder 36. .
  • the water tank 17 is connected to a water filling port (not shown) via a pipe 33a (copper pipe).
  • the water pump unit 16 is arranged downstream of the water tank 17 and is connected to the water tank 17 via a pipe 30b.
  • the water pump unit 16 has a water supply pump 59, a pressure regulator 60 (water pressure regulator), and a filter 61 for removing impurities contained in water.
  • the water pump unit 16 supplies water (tap water or pure water) in the water tank 17 to the water supply amount control unit 24 by means of the water supply pump 59 .
  • the water pump unit 16 is connected to an engine control unit 18 via a signal line (not shown), and the engine control unit 18 controls the start/stop and pump output.
  • the water pump unit 16 adjusts pump output according to control signals from the engine control unit 18 while the vehicle engine 10 is running.
  • the water supply amount control unit 24 is arranged downstream of the water pump unit 16 and is connected to the water pump unit 16 via a pipe 33c.
  • a water injection solenoid valve 34 is installed in the water supply amount control unit 24 .
  • the water supply amount control unit 24 is connected to the automobile engine 10 via a pipe 33c (copper pipe).
  • the water supply amount control unit 24 is connected to the engine control unit 18 via a signal line (not shown), and the engine control unit 18 controls the opening/closing and the degree of opening of the water injection electromagnetic valve 34 .
  • the water supply amount control unit 24 adjusts the opening degree of the water injection electromagnetic valve 34 according to the control signal from the engine control unit 18 while the automobile engine 10 is running, and the water supplied to the mist nozzle 38 (water injection nozzle). Regulate water supply.
  • the hydrogen gas tank 15 is connected to the low-pressure sub-tank 26 via a pipe 29c (copper pipe).
  • the check valve 27 of the hydrogen gas tank 15 is attached to the top of the hydrogen gas tank 15 .
  • the check valve 27 is connected to an atmospheric release pipe 29d (copper pipe).
  • the pressure reducing valve 28 is installed in a pipe 29c that connects the hydrogen gas tank 15 and the low-pressure sub-tank 26 .
  • the pressure reducing valve 28 reduces the supply pressure (atmospheric pressure) of the hydrogen gas supplied from the hydrogen gas tank 15 .
  • a gas pressure regulator 35 is installed in the pipe 29c that connects the pressure reducing valve 28 and the low-pressure sub-tank 26 .
  • the gas pressure regulator 35 is connected to the engine control unit 18 via a signal line (not shown), and its opening/closing and degree of opening are controlled by the engine control unit 18 .
  • the gas pressure regulator 35 adjusts its opening degree according to a control signal from the engine control unit 18 while the automobile engine 10 is running, and adjusts the supply pressure (atmospheric pressure) of the hydrogen gas supplied from the hydrogen gas tank 15. , to adjust the amount of hydrogen gas supplied.
  • the hydrogen gas contained in the hydrogen gas tank 15 is decompressed to a predetermined pressure through the decompression valve 28, and then flows into the pipe 29c from the decompression valve 28.
  • the pressure regulator 35 adjusts the supply pressure (air supply amount). Hydrogen gas whose supply pressure (air supply amount) has been adjusted by the gas pressure regulator 35 flows into the low-pressure sub-tank 26 through the pipe 29c.
  • the hydrogen gas that has flowed into the low-pressure sub-tank 26 flows from the low-pressure sub-tank 26 into each check valve 31 of the fuel supply amount control unit 21 through the pipe 29a.
  • Hydrogen gas whose air supply amount is adjusted by each check valve 31 is supplied (injected) from each hydrogen gas nozzle 32 to the combustion chamber 37 of each cylinder 36 .
  • the water (tap water or pure water) stored in the water tank 17 flows through the pipe 30b into the water pump unit 16, and the water pump 59 of the water pump unit 16 supplies water to the pipe 33c. and flows into the water supply amount control unit 24 (water injection solenoid valve 34) through the pipe 33c, and supplies water from the water supply amount control unit 24 to the mist nozzle 38 (water injection nozzle) installed in the misty water generating pipe 23. be done.
  • the water is changed into water mist by the mist nozzle 38 , and the water mist is sprayed (supplied) from the mist nozzle 38 into the water mist generating pipe 23 .
  • a 6-cylinder V-type engine is used for the automotive engine 10, and includes a 4-cylinder V-type engine, an 8-cylinder V-type engine, a 12-cylinder V-type engine, a 4-cylinder in-line engine, a 6-cylinder in-line engine, and a 4-cylinder horizontal engine. Opposed engines, 6-cylinder horizontally opposed engines can also be used.
  • the automobile engine 10 includes a cylinder 36 (cylinder) having a predetermined volume, a piston 39, and an ignition plug 40 (spark plug).
  • the automobile engine 10 is equipped with a CVTC valve 41 (Continuous Valve Timing Control) that optimizes the intake system, and an ignition coil 42 that applies a high voltage (20000 to 30000 volts) to the spark plug 40.
  • CVTC valve 41 is connected to engine control unit 18 via signal line 43 .
  • a control signal is sent from the engine control unit 18 to the CVTC valve 41 while the automobile engine 10 is running, and the CVTC valve 41 optimizes the intake system according to the control signal.
  • the ignition coil 42 is connected to the engine control unit 18 via a signal line 43 .
  • An ignition timing control signal is sent to the ignition coil 41 from the engine control unit 18 while the automobile engine 10 is running, and a high voltage is applied to the ignition plug 40 at the ignition timing according to the control signal.
  • a crank angle sensor 44, a POS sensor 45, a temperature sensor 46, and a knock sensor 47 are installed in the automobile engine 10.
  • a front O2 sensor 49 and a rear O2 sensor 49 are installed in the exhaust port 48 of the automobile engine 10 .
  • the exhaust port 48 is connected to the muffler 50 .
  • the crank angle sensor 44 is connected to the engine control unit 18 via a signal line 43.
  • the crank angle sensor 44 continuously detects the reference position and rotation angle of the crankshaft and the rotation speed of the engine 10 while the automobile engine 10 is running, and detects the detected reference position and rotation angle of the crankshaft and the rotation angle of the engine 10. and the number of revolutions are transmitted to the engine control unit 18 .
  • the engine control unit 18 optimally maintains the rotation angle and the rotation speed of the engine 10 based on the reference position and rotation angle of the crankshaft and the rotation speed of the engine 10 received from the crank angle sensor 44 .
  • the POS sensor 45 is connected to the engine control unit 18 via a signal line 43.
  • the POS sensor 45 continuously detects the crank position (angle) (crankshaft position) during operation of the automobile engine 10 and transmits the detected crank position (angle) to the engine control unit 18 .
  • the engine control unit 18 optimally maintains the crank position (angle) based on the crank position (angle) received from the POS sensor 45 .
  • the temperature sensor 46 is connected to the engine control unit 18 via the signal line 43.
  • the temperature sensor 46 continuously detects the temperature of the combustion chamber 37 of the cylinder 36 during operation of the automotive engine 10 and transmits the detected temperature of the combustion chamber 37 to the engine control unit 18 .
  • the engine control unit 18 optimally maintains the combustion chamber temperature based on the temperature of the combustion chamber 37 received from the temperature sensor 46 .
  • the front O2 sensor 49 and the rear O2 sensor 49 are connected to the engine control unit 18 via the signal line 43.
  • the front O2 sensor 49 and the rear O2 sensor 49 continuously measure the oxygen concentration of the exhaust gas flowing through the exhaust port 48 while the automobile engine 10 is running, and transmit the measured oxygen concentration of the exhaust gas to the engine control unit 18. do.
  • the engine control unit 18 transmits a control signal to a catalyst unit (not shown) based on the oxygen concentration of the exhaust gas received from the front O2 sensor 49 and the rear O2 sensor 49, and uses the catalyst unit to detect the oxygen concentration of the exhaust gas. hold optimally.
  • the knock sensor 47 is connected to the engine control unit 18 via the signal line 43.
  • the knock sensor 47 continuously detects the occurrence of knocking while the automobile engine 10 is running, and transmits the detected knocking occurrence signal to the engine control unit 18 .
  • the engine control unit 18 stops (prevents) knocking based on the knocking occurrence signal received from the knock sensor 47 .
  • a spark plug 40, a hydrogen gas nozzle 32, and an exhaust valve (not shown) are attached to the cylinder head of the cylinder 36.
  • a combustion chamber 37 is formed in the cylinder head of the cylinder 36 .
  • the spark plug 40 is connected to a battery (not shown) via an electric wire (not shown) and is connected to the engine control unit 18 via a signal line 43 to operate according to an ignition signal from the engine control unit 18 . generate sparks.
  • the hydrogen gas nozzle 32 is connected to the engine control unit 18 via signal line 43 .
  • An air heat ratio control signal is sent to the hydrogen gas nozzle 32 from the engine control unit 18 while the automobile engine 10 is running.
  • a connecting rod (not shown) is connected to the piston 39 via a piston pin (not shown).
  • the piston 39 reciprocates in the combustion chamber 37 of the cylinder 36, rises in the combustion chamber 37 of the cylinder 36 from the bottom dead center toward the top dead center, reaches the top dead center, and then moves from the top dead center to the bottom dead center. descends toward and reaches bottom dead center.
  • the ignition plug 40 ignites hydrogen gas (fuel) in the combustion chamber 37 at the timing when the piston 39 reaches the top dead center of the combustion chamber 37 of the cylinder 36 .
  • An air filter 51, an air flow meter 52, an electronic control throttle 53, and a mist nozzle 38 (water injection nozzle) are installed in the misty water generating pipe 23.
  • the air filter 51 is arranged on the most upstream side of the water mist generating pipe 23, and removes impurities contained in air (air) flowing into the water mist generating pipe 23 (flowing through the water mist generating pipe 23). do.
  • the air flow meter 52 is arranged downstream of the air filter 51 and connected to the engine control unit 18 via the signal line 43 .
  • the air flow meter 52 continuously measures the flow rate of air flowing through the misty water generating pipe 23 while the automobile engine 10 is running, and transmits the measured air flow rate to the engine control unit 18. .
  • the airflow meter 52 incorporates an intake air temperature sensor (not shown).
  • the intake air temperature sensor is connected to the engine control unit 18 via signal line 43 .
  • the intake air temperature sensor continuously measures the intake air temperature of the air flowing through the misty water generating pipe 23 while the automobile engine 10 is running, and transmits the measured intake air temperature to the engine control unit 18 .
  • the engine control unit 18 adjusts the electronic control throttle 53 (throttle motor) based on the air flow rate received from the air flow meter 52 and the intake air temperature received from the intake air temperature sensor, and the air flowing through the misty water generating pipe 23 is adjusted. to maintain optimal airflow.
  • the electronically controlled throttle 53 is arranged downstream of the airflow meter 52 and includes a throttle 54 (throttle valve), a throttle sensor (not shown) and a throttle motor (not shown).
  • the electronically controlled throttle 53 controls the throttle 54 by receiving an output request according to the depression amount (accelerator opening) of the accelerator pedal 55 as an electric signal.
  • the throttle 54 is installed in the pipe of the water mist generating pipe 23 to change the flow passage cross-sectional area of the water mist generating pipe 23 to increase the supply flow rate of the air flowing through the water mist generating pipe 23. change.
  • the throttle sensor is connected to the engine control unit 18 via a signal line 43, measures the opening of the throttle 54 while the automobile engine 10 is running, and transmits the measured throttle opening to the engine control unit 18.
  • a DC motor or stepping motor is used for the throttle motor.
  • the throttle motor is connected to the engine control unit 18 via a signal line 43, adjusts the opening of the throttle 54 according to a control signal from the engine control unit 18, and adjusts the flow rate of the air flowing through the misty water generating pipe 23. Adjust.
  • the engine control unit 18 calculates the target opening of the throttle 54 from the information of the accelerator pedal opening sensor of the accelerator work unit 56 and compares it with the actual opening of the throttle 54 to obtain the opening deviation. Determines the control amount to the motor. In addition, the engine control unit 18 performs cruise control to control the engine output so that the vehicle runs at a constant speed when the accelerator pedal 55 is released. Cruise control reduces engine power to prevent drive wheels from slipping. Further, the engine control unit 18 closes the throttle valve to reduce the engine output when the vehicle speed reaches a constant speed, thereby performing maximum speed limit control to suppress the vehicle speed.
  • the air (air) that has flowed into the water mist generating pipe 23 is passed through the air filter 51 to remove impurities, and after the air supply amount is adjusted by the throttle 54 , the air flows downstream of the water mist generating pipe 23 .
  • flow towards Water mist is sprayed into the water mist generating pipe 23 from mist nozzles 38 (38a to 38c) (water injection nozzles) installed downstream of the water mist generating pipe 23, and water mist and air (air) are sprayed into the water mist generating pipe 23. is supplied to the combustion chamber 37 of each cylinder 36.
  • An accelerator pedal 55 is connected to the accelerator work unit 56, and an accelerator pedal opening sensor (not shown) is installed.
  • the accelerator pedal opening sensor is connected to the engine control unit 18 via a signal line 43 .
  • the accelerator pedal opening sensor continuously measures the accelerator opening while the automobile engine 10 is running, and transmits the measured accelerator opening to the engine control unit 18 .
  • the engine control unit 18 determines the supply amount (injection amount) of hydrogen gas to be injected into the combustion chamber 37 of the cylinder 36 based on the accelerator opening received from the accelerator pedal opening sensor, and the fog to be supplied (sprayed) to the combustion chamber 37. Adjust the water supply amount.
  • the mist nozzle 38 (water injection nozzle) is arranged on the downstream side of the electronically controlled throttle 53 and is composed of a first mist nozzle 38a, a second mist nozzle 38b and a third mist nozzle 38c.
  • the first to third mist nozzles 38a to 38c have a spray surface 57 forming a semicircular arc toward the interior of the misty water generating pipe 23.
  • the spray surface 57 is perforated with a plurality of spray ports 58 arranged linearly in the circumferential direction.
  • the first to third mist nozzles 38 a to 38 c spray misty water from the spray port 58 of the spray surface 57 toward the interior of the water mist generating pipe 23 .
  • the number of the mist nozzle 38 may be one.
  • the average particle size of the water mist sprayed from the mist nozzle 38 is in the range of 30 to 55 ⁇ m.
  • Electromagnetic valves (not shown) are installed in the first mist nozzle 38a, the second mist nozzle 38b, and the third mist nozzle 38c. Atomized water is not sprayed when the solenoid valve is closed. These solenoid valves are connected to the engine control unit 18 via signal lines 43 . When the solenoid valve of the first mist nozzle 38a is open, the solenoid valves of the second and third mist nozzles 38b and 38c are closed, and when the solenoid valve of the second mist nozzle 38b is open, the first and third 3 The electromagnetic valves of the mist nozzles 38a and 38c are closed. When the electromagnetic valve of the third mist nozzle 38c is open, the electromagnetic valves of the first and second mist nozzles 38a and 38b are closed.
  • the average particle size of the mist water sprayed from the first mist nozzle 38a is in the range of 30 to 35 ⁇ m, and the average particle size of the mist water sprayed from the second mist nozzle 38b is in the range of 40 to 45 ⁇ m. be.
  • the average particle size of the water mist sprayed from the third mist nozzle 38c is in the range of 50 to 55 ⁇ m.
  • the average particle size ( ⁇ m) of the water mist sprayed into the water mist generating pipe 23 increases as the engine speed (rpm) increases.
  • the solenoid valve of the first mist nozzle 38a is opened, and the solenoid valves of the second and third mist nozzles 38b and 38c are closed, and the first mist nozzle 38a is closed.
  • Atomized water having an average particle size of 30 to 35 ⁇ m is sprayed from the nozzle.
  • the solenoid valve of the second mist nozzle 38b is opened, and the solenoid valves of the first and third mist nozzles 38a and 38c are closed, and the second mist nozzle 38b is closed.
  • Atomized water having an average particle size of 40 to 45 ⁇ m is sprayed from the nozzle.
  • the electromagnetic valve of the third mist nozzle 38c is opened, and the electromagnetic valves of the first and second mist nozzles 38a and 38b are closed.
  • Atomized water having a particle size of 50 to 55 ⁇ m is sprayed.
  • the water supply amount (cc) of the misty water supplied to the combustion chamber 37 increases. to increase the amount of spray (cc) sprayed into the tube.
  • the water supply amount (spray amount) of the mist-like water supplied to the combustion chamber 37 of one cylinder 36 at the rotation speed of 800 rpm or more and less than 1100 rpm of the automobile engine 10 is in the range of 22 to 24 cc, preferably 23 cc.
  • the water supply amount (spray amount) of the atomized water supplied to the combustion chamber 37 of one cylinder 36 at 10 rotation speeds of 1100 rpm or more and less than 1500 rpm is in the range of 29 to 31 cc, preferably 30 cc.
  • the water supply amount (spray amount) of atomized water supplied to the combustion chamber 37 of one cylinder 36 at a rotation speed of 1500 rpm or more and less than 2000 rpm of the automobile engine 10 is in the range of 37 to 39 cc, preferably 38 cc.
  • the water supply amount (spray amount) of the atomized water supplied to the combustion chamber 37 of one cylinder 36 at 2000 rpm or more and less than 2600 rpm in 10 is in the range of 45 to 47 cc, preferably 46 cc.
  • the water supply amount (spray amount) of the mist-like water supplied to the combustion chamber 37 of one cylinder 36 when the rotational speed of the automobile engine 10 is 2600 rpm or more and less than 3500 rpm is in the range of 53 to 55 cc, preferably 54 cc.
  • the water supply amount (spray amount) of atomized water supplied to the combustion chamber 37 of one cylinder 36 at a rotation speed of 3500 rpm or more and less than 4500 rpm of the automobile engine 10 is in the range of 60 to 62 cc, preferably 61 cc.
  • the water supply amount (spray amount) of the atomized water supplied to the combustion chamber 37 of one cylinder 36 at 4500 rpm or more and less than 6000 rpm in 10 is in the range of 68 to 70 cc, preferably 69 cc.
  • the water supply amount (spray amount) of atomized water supplied to the combustion chamber 37 of one cylinder 36 at a speed of 6000 rpm or more of the automobile engine 10 is in the range of 76 to 78 cc, preferably 77 cc.
  • the engine 10 cranks and the number of revolutions reaches 400 rpm or more. At that time, a negative pressure is generated in the intake manifold, and the gas lock 30 installed in the fuel line is operated by the generation of the negative pressure to open the gas lock 30 .
  • the engine speed reaches 400 rpm or more, all the solenoid valves installed in the fuel line are actuated to open, and the hydrogen gas in the hydrogen gas tank 15 (high pressure tank) is supplied to the engine 10 . It is assumed that each sensor, each solenoid valve, and the pump are operating normally.
  • the engine control unit 10 opens the solenoid valve of the first mist nozzle 38a, and opens the second mist nozzle 38a. And the electromagnetic valves of the third mist nozzles 38b, 38c are closed.
  • the engine control unit 18 sends The water supply amount control unit 24 adjusts the opening of the water injection electromagnetic valve 34 according to the supplied water amount signal (water supply amount corresponding to the engine speed of the engine 10), and the water supply amount corresponding to the water supply amount signal is adjusted.
  • Water is supplied from the water supply amount control unit 24 to the first mist nozzle 38a (water injection nozzle). mixture) is sprayed (water supplied) from the mist nozzle 38 a into the pipe of the water mist generating pipe 23 , and the water mist (mixture containing air) is supplied to the combustion chamber 37 of each cylinder 36 .
  • the misty water (mixture containing air) is sprayed (supplied) into the misty water generating pipe 23 from the spray ports 58 of the spray surface 57 that draws a semicircular arc.
  • the automobile engine 10 has a spray surface 57 in which the mist nozzles 38a to 38c form a semicircular arc toward the inside of the water mist generating pipe 23, and a plurality of spray ports 58 for spraying water mist. is perforated in the spray surface 58, and mist water is sprayed from a plurality of spray ports 58 of the spray surface 57 forming a semicircular arc. It is possible to evenly supply the atomized water to the combustion chambers 37 of all the cylinders 36 .
  • the engine control unit 18 supplies water mist in a range of 22 to 24 cc (preferably 23 cc) to the combustion chamber 37 of one cylinder 36. Water mist is sprayed from the first mist nozzle 38a toward the inside of the water mist generating pipe 23 so that water is supplied (sprayed).
  • the engine control unit 18 detects that atomized water with an average particle diameter in the range of 30 to 35 ⁇ m enters the combustion chamber 37 of one cylinder 36. Water mist having an average particle diameter in the range of 30 to 35 ⁇ m is sprayed from the first mist nozzle 38a into the water mist generating pipe 23 so as to be supplied (sprayed).
  • the engine control unit 18 applies a high voltage to the ignition plug 40 using the ignition coil 42 to generate a spark in the ignition plug 40.
  • the hydrogen gas in the combustion chamber 37 compressed by the piston 39 to a compression ratio in the range of 14:1 to 15:1 is ignited by the spark of the ignition plug 40 .
  • the hydrogen gas burns at a high temperature, and the water mist instantly vaporizes due to the combustion heat of the hydrogen gas, and the water mist causes a steam explosion.
  • the vaporization of water (steam explosion) pushes the piston 39 downward to rotate the crankshaft.
  • the automobile engine 10 converts the combustion energy of hydrogen gas and the steam energy of vaporized (steam explosion) mist water into power (rotational force).
  • hydrogen gas is supplied from the hydrogen gas nozzle 32 to the combustion chamber 37 of the cylinder 36, and water mist is supplied (sprayed) to the combustion chamber 37 of the cylinder 36 from the mist nozzles 38a to 38c. Then, the hydrogen gas in the combustion chamber 37 compressed to a predetermined compression ratio by the piston 39 is ignited by the ignition plug 40, and while the hydrogen gas is being burned, the mist-like water mist is instantaneously vaporized by the combustion heat of the hydrogen gas.
  • the combustion energy of the hydrogen gas and the steam energy of the vaporized (steam explosion) mist water are converted into power (rotational force)
  • the combustion energy of the hydrogen gas and the vaporized (steam explosion) mist water can be converted into power (rotational force) of the engine 10
  • a predetermined engine output can be obtained from the combustion energy and the steam energy
  • the combustion energy of the hydrogen gas and the steam energy of the mist water The automobile 11 can be driven by
  • the engine control unit 18 When the accelerator pedal 55 is depressed while the automobile 11 is running, the engine control unit 18 outputs a hydrogen gas supply amount signal (air supply amount signal) corresponding to the accelerator opening (depression amount) of the accelerator pedal 55 to the fuel supply amount control unit.
  • the fuel supply amount control unit 21 injects a predetermined amount of hydrogen gas from each hydrogen gas nozzle 32 into the combustion chamber 37 of each cylinder 36 according to the supply amount signal (air supply amount signal), and the engine 10 The number of revolutions increases and the automobile 11 accelerates.
  • the engine control unit 18 keeps the solenoid valve of the first mist nozzle 38a open, and keeps the second and second mist nozzles 38a open.
  • the water supply amount control unit 24 increases the opening of the water injection solenoid valve 34, and the water supply amount is in the range of 29 to 31 cc (preferably 30 cc). Water mist is sprayed from the first mist nozzle 38 a toward the inside of the water mist generating pipe 23 so that the water mist is supplied (sprayed) to the combustion chamber 37 of one cylinder 36 .
  • the engine control unit 18 detects that the atomized water with an average particle diameter in the range of 30 to 35 ⁇ m enters the combustion chamber 37 of one cylinder 36. Water mist having an average particle diameter in the range of 30 to 35 ⁇ m is sprayed from the first mist nozzle 38a into the water mist generating pipe 23 so as to be supplied (sprayed).
  • the engine control unit 18 opens the solenoid valve of the second mist nozzle 38b, and the first and third mist nozzles
  • the solenoid valves 38a and 38c are closed, and the water supply amount control unit 24 is caused to increase the opening of the water injection solenoid valve 34 so that the water supply amount in the range of 37 to 39 cc (preferably 38 cc) is 1.
  • Water mist is sprayed from the second mist nozzle 38b toward the inside of the water mist generating pipe 23 so that water is supplied (sprayed) to the combustion chambers 37 of the two cylinders 36 .
  • the engine control unit 18 supplies the combustion chamber 37 of one cylinder 36 with atomized water having an average particle diameter in the range of 40 to 45 ⁇ m ( Water mist having an average particle diameter in the range of 40 to 45 ⁇ m is sprayed from the second mist nozzle 38b into the pipe of the water mist generating pipe 23 so as to be sprayed.
  • the engine control unit 18 keeps the solenoid valve of the second mist nozzle 38b open. While maintaining the solenoid valves of the mist nozzles 38a and 38c closed, the water supply amount control unit 24 is caused to increase the opening of the water injection solenoid valve 34, and the water supply amount is in the range of 45 to 47cc (preferably 46cc). Water mist is sprayed from the second mist nozzle 38b into the water mist generating pipe 23 so that water is supplied (sprayed) to the combustion chamber 37 of one cylinder 36 .
  • the engine control unit 18 supplies the combustion chamber 37 of one cylinder 36 with atomized water having an average particle diameter in the range of 40 to 45 ⁇ m ( Water mist having an average particle diameter in the range of 40 to 45 ⁇ m is sprayed from the second mist nozzle 38b into the pipe of the water mist generating pipe 23 so as to be sprayed.
  • the engine control unit 18 keeps the solenoid valve of the second mist nozzle 38b open. While maintaining the solenoid valves of the mist nozzles 38a and 38b closed, the water supply amount control unit 24 is caused to increase the opening of the water injection solenoid valve 34, and the water supply amount is in the range of 53 to 55 cc (preferably 54 cc). Water mist is sprayed from the second mist nozzle 38b into the water mist generating pipe 23 so that water is supplied (sprayed) to the combustion chamber 37 of one cylinder 36 .
  • the engine control unit 18 supplies the combustion chamber 37 of one cylinder 36 with atomized water having an average particle diameter in the range of 40 to 45 ⁇ m ( Water mist having an average particle diameter in the range of 40 to 45 ⁇ m is sprayed from the second mist nozzle 38b into the pipe of the water mist generating pipe 23 so as to be sprayed.
  • the engine control unit 18 opens the solenoid valve of the third mist nozzle 38c, and the first and second mist nozzles
  • the electromagnetic valves 38a and 38b are closed, and the opening of the water injection electromagnetic valve 34 is increased by the water supply amount control unit 24 so that the water supply amount in the range of 60 to 62 cc (preferably 61 cc) is 1.
  • Water mist is sprayed from the third mist nozzle 38c into the water mist generating pipe 23 so that water is supplied (sprayed) to the combustion chambers 37 of the two cylinders 36 .
  • the engine control unit 18 feeds the combustion chamber 37 of one cylinder 36 with atomized water having an average particle diameter in the range of 50 to 55 ⁇ m ( Water mist having an average particle diameter in the range of 50 to 55 ⁇ m is sprayed from the third mist nozzle 38c into the pipe of the water mist generating pipe 23 so as to be sprayed.
  • the engine control unit 18 keeps the electromagnetic valve of the third mist nozzle 38c open, and While maintaining the solenoid valves of the mist nozzles 38a and 38b closed, the water supply amount control unit 24 increases the opening of the water injection solenoid valve 34, and the water supply amount in the range of 68 to 70 cc (preferably 69 cc). Water mist is sprayed from the third mist nozzle 38c into the water mist generating pipe 23 so that water is supplied (sprayed) to the combustion chamber 37 of one cylinder 36 .
  • the engine control unit 18 supplies the combustion chamber 37 of one cylinder 36 with atomized water having an average particle diameter in the range of 50 to 55 ⁇ m ( Water mist having an average particle diameter in the range of 50 to 55 ⁇ m is sprayed from the third mist nozzle 38c into the pipe of the water mist generating pipe 23 so as to be sprayed.
  • the engine control unit 18 keeps the electromagnetic valve of the third mist nozzle 38c open, and the first and second mist nozzles 38a and 38b are kept closed, and the water supply amount control unit 24 is caused to increase the opening of the water injection electromagnetic valve 34 so that the water supply amount in the range of 76 to 78 cc (preferably 77 cc) is sprayed.
  • Water mist is sprayed from the third mist nozzle 38c into the water mist generating pipe 23 so that water is supplied (sprayed) to the combustion chamber 37 of one cylinder 36 .
  • the engine control unit 18 feeds (sprays) atomized water having an average particle diameter in the range of 50 to 55 ⁇ m to the combustion chamber 37 of one cylinder 36. Water mist having an average particle diameter in the range of 50 to 55 ⁇ m is sprayed into the water mist generating pipe 23 from the third mist nozzle 38c.
  • the engine control unit 18 switches the second mist nozzle 38b.
  • the electromagnetic valves are opened, the electromagnetic valves of the first and third mist nozzles 38a and 38c are closed, and the water supply amount control unit 24 is caused to reduce the opening of the water injection electromagnetic valve 34 to a range of 37 to 39 cc ( Preferably, 38 cc) of water mist is supplied (sprayed) to the combustion chamber 37 of one cylinder 36, and water mist is supplied from the second mist nozzle 38b toward the inside of the water mist generating pipe 23.
  • the engine control unit 18 detects that the atomized water with an average particle diameter in the range of 40 to 45 ⁇ m is burned in one cylinder 36. Water mist having an average particle diameter in the range of 40 to 45 ⁇ m is sprayed from the second mist nozzle 38b into the pipe of the water mist generating pipe 23 so as to supply water (spray) to the chamber 37 .
  • the engine control unit 18 opens the electromagnetic valve of the first mist nozzle 38a, and the second and third mist nozzles.
  • the electromagnetic valves 38b and 38c are closed, and the opening of the water injection electromagnetic valve 34 is decreased by the water supply amount control unit 24 so that the water supply amount in the range of 22 to 24 cc (preferably 23 cc) is 1.
  • Water mist is sprayed from the first mist nozzle 38 a toward the interior of the water mist generating pipe 23 so that water is supplied (sprayed) to the combustion chambers 37 of the two cylinders 36 .
  • the engine control unit 18 When the rotation speed of the engine 10 changes from 1500 rpm or more and less than 2000 rpm to 400 rpm or more and less than 1100 rpm (rotation speed is 400 rpm or more and less than 1500 rpm), the engine control unit 18 generates a mist of water with an average particle diameter in the range of 30 to 35 ⁇ m. Water mist having an average particle diameter in the range of 30 to 35 ⁇ m is sprayed from the first mist nozzle 38 a into the water mist generating pipe 23 so as to be supplied (sprayed) to the combustion chamber 37 of the cylinder 36 .
  • the engine control unit 18 determines that the combustion temperature of the combustion chamber 37 has reached the upper limit temperature, The amount of water mist supplied to the combustion chambers 37 of one cylinder 36 is increased to keep the combustion temperature of the combustion chambers 37 of all cylinders 36 below the upper limit temperature (400°C).
  • the engine control unit 18 feeds the combustion chamber 37 of one cylinder 36 from the mist nozzle 38 with a water supply amount corresponding to the rotation speed plus 1 to 4 cc.
  • the engine control unit 18 controls the solenoid valve of the second mist nozzle 38b. While keeping the solenoid valves of the first and third mist nozzles 38a and 38b closed, the water supply amount control unit 24 increases the opening of the water injection solenoid valve 34 to 53 to 55 cc + (1 4 cc) (preferably 54 cc + 2 to 3 cc) of water mist is supplied (sprayed) to the combustion chamber 37 of one cylinder 36 from the second mist nozzle 38b into the water mist generating pipe 23. spray misty water toward In addition, water mist having an average particle diameter in the range of 40 to 45 ⁇ m is sprayed into the water mist generating pipe 23 from the second mist nozzle 38b.
  • the engine control unit 18 opens the solenoid valve of the third mist nozzle 38c.
  • the solenoid valves of the first and second mist nozzles 38a and 38b are kept closed, and the water supply amount control unit 24 increases the opening of the water injection solenoid valve 34 to 76 to 78 cc + (1 to 4 cc ) (preferably 77 cc + 2 to 3 cc) of water mist is supplied (sprayed) to the combustion chamber 37 of one cylinder 36, from the third mist nozzle 38c toward the inside of the water mist generating pipe 23. to spray mist water.
  • water mist having an average particle diameter in the range of 50 to 55 ⁇ m is sprayed into the water mist generating pipe 23 from the third mist nozzle 38c.
  • the automotive engine 10 increases the water supply amount (cc) of mist water supplied to the combustion chamber 37 of the cylinder 36 as the engine speed (rpm) increases, thereby increasing the engine speed (rpm). It is possible to increase the steam energy of the mist water vaporized as it accompanies, and it is possible to increase the engine output (kW) as the engine speed (rpm) increases, and the engine 10 can be smoothly operated from low speed rotation. It can be shifted to high speed rotation.
  • the water supply amount of mist water supplied to the combustion chamber 37 is increased from 22 cc to 47 cc.
  • the steam energy of the atomized water can be increased, the engine output (kW) can be increased as the engine speed (rpm) increases, and the engine 10 can be smoothly rotated at low speeds (400 rpm or more and less than 1100 rpm). ) to medium speed rotation (2000 rpm or more and less than 2600 rpm).
  • the water supply amount of the mist water supplied to the combustion chamber 37 is increased to 52 cc to 77 cc, so that the engine speed (rpm) increases.
  • the steam energy of the vaporized mist water can be increased, and the engine output (kW) can be increased as the engine speed (rpm) increases. 3500 rpm or less) to high speed rotation (6000 rpm or more).
  • the average particle diameter ( ⁇ m) of mist water sprayed into the water mist generating pipe 23 increases as the engine speed (rpm) increases.
  • the steam energy of the vaporized mist water can be increased as the is increased, the engine output (kW) can be increased as the engine speed (rpm) is increased, and the engine 10 can be operated smoothly. It is possible to shift from low speed rotation to high speed rotation.
  • the average particle size of the mist water sprayed from the first mist nozzle 38a at the rotation speed of 400 rpm or more and less than 1500 rpm is in the range of 30 to 35 ⁇ m, and the mist sprayed from the second mist nozzle 38b at the rotation speed of 1500 rpm or more and less than 3500 rpm.
  • the engine rotation By setting the average particle diameter of the mist water to the range of 40 to 45 ⁇ m and the average particle diameter of the mist water sprayed from the third mist nozzle 38c at the rotation speed of 3500 rpm or more to the range of 50 to 55 ⁇ m, the engine rotation
  • the steam energy of the vaporized mist water can be increased as the engine speed (rpm) increases, and the engine power (kW) can be increased as the engine speed (rpm) increases. 10 can be smoothly shifted from low speed rotation (400 rpm) to high speed rotation (3500 rpm or higher).
  • the automobile engine 10 increases the amount of water mist supplied to the combustion chamber 37 of one cylinder 36 by 1 to 4 cc. , the combustion chamber can be cooled by the increased mist water, the temperature of the combustion chamber 37 can be lowered below the upper limit temperature, and accidental overheating of the engine 10 can be prevented.

Landscapes

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

Abstract

Le problème abordé par la présente invention est de fournir un moteur d'automobile capable de convertir de l'énergie de vapeur d'eau atomisée vaporisée, conjointement avec de l'énergie de combustion d'hydrogène gazeux, en énergie motrice du moteur. La solution selon l'invention concerne un moteur d'automobile (10) qui est pourvu d'une buse d'hydrogène gazeux (32) permettant d'injecter directement de l'hydrogène gazeux dans une chambre de combustion (37) d'un cylindre (36), et d'une buse de brouillard (38) permettant d'introduire de l'eau atomisée en brouillard dans la chambre de combustion (37), un rapport de compression du moteur se situant dans une plage de 14:1 à 15:1. Dans le moteur d'automobile (10), de l'hydrogène gazeux est introduit dans la chambre de combustion (37) à partir de la buse d'hydrogène gazeux (32), et de l'eau atomisée en brouillard est introduite dans la chambre de combustion (37) à partir de la buse de brouillard (38), l'hydrogène gazeux dans la chambre de combustion (37), qui a été comprimé à un rapport de compression prédéterminé au moyen d'un piston (39), est allumé au moyen d'une bougie d'allumage (40), l'eau atomisée en brouillard est vaporisée par la chaleur de combustion de l'hydrogène gazeux tandis que l'hydrogène gazeux de la buse est brûlé, et l'énergie de combustion de l'hydrogène gazeux et l'énergie de vapeur de l'eau atomisée vaporisée sont converties en énergie motrice.
PCT/JP2022/047160 2021-12-23 2022-12-21 Moteur d'automobile WO2023120588A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-209003 2021-12-23
JP2021209003A JP2023093884A (ja) 2021-12-23 2021-12-23 自動車用エンジン

Publications (1)

Publication Number Publication Date
WO2023120588A1 true WO2023120588A1 (fr) 2023-06-29

Family

ID=86902649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/047160 WO2023120588A1 (fr) 2021-12-23 2022-12-21 Moteur d'automobile

Country Status (2)

Country Link
JP (1) JP2023093884A (fr)
WO (1) WO2023120588A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882005A (ja) * 1981-11-12 1983-05-17 Kenji Watanabe 水素ガスエンジン
JP2002155810A (ja) * 2000-11-24 2002-05-31 Mutsuo Nozawa 内燃機関
JP2003293859A (ja) * 2002-04-01 2003-10-15 Ishikawajima Harima Heavy Ind Co Ltd エネルギー供給システム
JP2008057424A (ja) * 2006-08-31 2008-03-13 Tomoki Yamazaki 水素ガス専用の２行程エンジン
JP2013024094A (ja) * 2011-07-19 2013-02-04 Mitsubishi Motors Corp エンジンのノッキング抑制方法及び同ノッキング抑制装置
JP2016501334A (ja) * 2012-11-20 2016-01-18 ノストラム エナジー ピーティーイー．リミテッドＮｏｓｔｒｕｍ Ｅｎｅｒｇｙ Ｐｔｅ．Ｌｔｄ． 内燃エンジン用の内部冷却された排気ガス再循環システム及びその方法
JP2016118109A (ja) * 2014-12-18 2016-06-30 トヨタ自動車株式会社 水素エンジンシステム
US20180274488A1 (en) * 2017-03-21 2018-09-27 Ford Global Technologies, Llc Method and system for engine water injection
JP2019105224A (ja) * 2017-12-13 2019-06-27 マツダ株式会社 予混合圧縮着火式エンジン
JP2021110294A (ja) * 2020-01-10 2021-08-02 トヨタ自動車株式会社 内燃機関の吸気構造

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882005A (ja) * 1981-11-12 1983-05-17 Kenji Watanabe 水素ガスエンジン
JP2002155810A (ja) * 2000-11-24 2002-05-31 Mutsuo Nozawa 内燃機関
JP2003293859A (ja) * 2002-04-01 2003-10-15 Ishikawajima Harima Heavy Ind Co Ltd エネルギー供給システム
JP2008057424A (ja) * 2006-08-31 2008-03-13 Tomoki Yamazaki 水素ガス専用の２行程エンジン
JP2013024094A (ja) * 2011-07-19 2013-02-04 Mitsubishi Motors Corp エンジンのノッキング抑制方法及び同ノッキング抑制装置
JP2016501334A (ja) * 2012-11-20 2016-01-18 ノストラム エナジー ピーティーイー．リミテッドＮｏｓｔｒｕｍ Ｅｎｅｒｇｙ Ｐｔｅ．Ｌｔｄ． 内燃エンジン用の内部冷却された排気ガス再循環システム及びその方法
JP2016118109A (ja) * 2014-12-18 2016-06-30 トヨタ自動車株式会社 水素エンジンシステム
US20180274488A1 (en) * 2017-03-21 2018-09-27 Ford Global Technologies, Llc Method and system for engine water injection
JP2019105224A (ja) * 2017-12-13 2019-06-27 マツダ株式会社 予混合圧縮着火式エンジン
JP2021110294A (ja) * 2020-01-10 2021-08-02 トヨタ自動車株式会社 内燃機関の吸気構造

Also Published As

Publication number Publication date
JP2023093884A (ja) 2023-07-05

Similar Documents

Publication Publication Date Title
CN106499531B (zh) 一种双喷嘴气/液双燃料缸内直喷内燃机及控制方法
CN106481462B (zh) 一种甲醇发动机冷启动***
US4483305A (en) Fuel vaporization device
US20100077986A1 (en) Steam Combustion Engine
EP0783623A1 (fr) Moteur a injection d'eau dans le cylindre
CN104421027B (zh) 用于运行燃烧液化石油气的发动机的***和方法
HU193154B (en) Internal combustion engine operating by hydrogen gas
US20100326374A1 (en) Internal Combustion Engines
US20090194042A1 (en) Fuel Supply System for a Vehicle Including a Vaporization Device for Converting Fuel and Water into Hydrogen
US20050011501A1 (en) Multi-phase fuel system
WO2023120588A1 (fr) Moteur d'automobile
JP2997750B2 (ja) 燃料噴射式エンジン
US4417547A (en) Engine speed and engine load responsive fluid injection system for an internal combustion engine
US8459015B1 (en) System for use with an internal combustion engine effective for increasing power and improving fuel usage
JP2001355523A (ja) 内燃機関
JPS60116845A (ja) 内燃機関の燃料供給装置
AU2012100192A4 (en) Improved method of reducing fuel consumption of a petrol fuelled four stroke spark ignition engine by altering the engine manifold intake atmosphere by the induction of hot water vapour
JP2024016431A (ja) 自動車用エンジン
CN114233540A (zh) 一种甲醇发动机冷启动进气管装置及其控制方法
KR880001683B1 (ko) 수소개스 내연기관
US20050193962A1 (en) Combined-cycle combustion engine based on contribution of carbon dioxide (CO2) to the combustion gases
KR100418957B1 (ko) 자동차의연비향상장치
US2895462A (en) Feed device for an internal combustion engine
KR0133960Y1 (ko) Lpg 자동차의 연료공급장치
RU2722006C1 (ru) Способ работы двигателя внутреннего сгорания (ДВС) с искровым зажиганием и устройство подачи топлива для него

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22911290

Country of ref document: EP

Kind code of ref document: A1