WO1988001338A1 - Chambre de combustion auxiliaire - Google Patents

Chambre de combustion auxiliaire Download PDF

Info

Publication number
WO1988001338A1
WO1988001338A1 PCT/AU1987/000258 AU8700258W WO8801338A1 WO 1988001338 A1 WO1988001338 A1 WO 1988001338A1 AU 8700258 W AU8700258 W AU 8700258W WO 8801338 A1 WO8801338 A1 WO 8801338A1
Authority
WO
WIPO (PCT)
Prior art keywords
combustion chamber
engine
auxiliary
engine part
auxiliary combustion
Prior art date
Application number
PCT/AU1987/000258
Other languages
English (en)
Inventor
Phillip Charles Ross
Original Assignee
Phillip Charles Ross
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 Phillip Charles Ross filed Critical Phillip Charles Ross
Publication of WO1988001338A1 publication Critical patent/WO1988001338A1/fr

Links

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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
    • F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
    • F02B19/1023—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber pre-combustion chamber and cylinder being fed with fuel-air mixture(s)
    • F02B19/1028—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber pre-combustion chamber and cylinder being fed with fuel-air mixture(s) pre-combustion chamber and cylinder having both intake ports or valves, e.g. HONDS CVCC
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates general ly to an internal combustion angina.
  • this inv ention re l ates to an engine part pro v iding an auxi l nowadaysy combustion chamber f or spark ignition internal combustion engines.
  • a pp l ica tion th e engin e pa r t i s a n a ccesso ry t o a conventional four cycle internal combustion engine with the auxil iary combustion chamber prov iding a pre-combustion chamber, and it wil l be convenient to hereinafter describe preferred engine parts in relation to that application.
  • the or each main combustion chamber is provided with at least one inlet valve controlling the intake of a fuel/air mixture to the chamber, and at least one exhaust valve for emission of products from the combustion process.
  • the fuel/air mixture may be supplied to the main combustion chamber from a fuel and air supply in any known manner, such as via a carburettor or electronic fuel injection systems.
  • the main cylinder will have a spark plug socket for inclusion of a spark plug. The spark plug would under normal operating circumstances be included so as to provide a spark igniting gases within the main combustion chamber.
  • the present invention provides for an engine part for an internal combustion engine.
  • the engine part may broadly include a body portion defining an auxiliary combustion chamber having a valve controlled inlet port, an outlet port and means for the inclusion of an ignition means.
  • the connecting means may also define the outlet port for the auxiliary combustion chamber.
  • the out l et port may be comprised of a bore through the connecting means, leading from the auxiliary combustion chamber to the main combustion chamber of a main cyl inder.
  • the outlet port may be of any dimension, but such that it is ab l e to direct a f l ame discharge f rom the auxi l convenientlyy combustion chamber to the main combustion chamber.
  • the connecting means is such as to permit the auxiliary chamber to be located at a selected rotated position with respect thereto.
  • director means to direct a flame produced in auxiliary combustion chamber towards the outlet passage into said main combustion chamber.
  • the shape and volume of the auxiliary combustion chamber is not criticial and may vary. The variation in the shape and volume will depend at least to some extent upon the type of engine in which it is to be used. The larger the volume of the auxiliary combustion chamber, the less the compression ratio will be for the combined main and auxiliary combustion chambers. Hence, the volume of the auxiliary combustion chamber can be varied according to need.
  • the valve may be positioned to control the flow of fuel/air mixture at the junction of the inlet passage opening and the auxiliary combustion chamber.
  • the valve is preferably actuable to open and close in the inlet passage in accordance with engine piston movement and the valves of the main chamber.
  • the valve is preferably timed to open the inlet pasage so as to allow the passage of fuel/air mixture into the auxiliary combustion chamber during a fuel/air mixture induction stroke of the engine piston.
  • the valve will preferably then generally close the inlet passage for compression, work and exhaust strokes of the piston. Timed actuation of the valve to the auxiliary combustion chamber may be achieved in any suitable manner, and in particular by either the same mode, or an independant mode to the valves of the main cylinder.
  • the inlet valve is biased towards a closed position but is adapted to open solely under vacuum induced during an induction stroke of said engine.
  • At least one inlet manifold may be associated with the inlet passage of the auxiliary combustion chamber and the main combustion chamber.
  • the engine part of the invention Itself may be cooled by any conventional means, such as air or liquid cooling by using or modifying the existing cooling system of the engine.
  • a baffle may also be included in the engine part and may be arranged so as to direct the jet of flame in the auxiliary combustion chamber toward the deepest part of the main combustion chamber.
  • the baffle may also assist in avoiding swirling of the fuel/air mixtures during the compression stroke of the engine piston.
  • the baffle may be included in any conventional manner, preferably in or near the outlet passage of the auxiliary combustion chamber.
  • Fig 1 is a cross-sectional view of a first engine part installed in an existing engine.
  • Fig 2 is a perspective view of a second engine part
  • Fig 3 is a vertical cross-sectional view of the second engine part.
  • the engine part P including an auxiliary combustion chamber 1 , having a predetermined volume, defined by body portion 2.
  • a screw-in connecting means 3 is arranged to fit in an existing spark plug socket 4 of a main cylinder of an engine E, so as to mount the body portion 2 on the engine E.
  • An outlet port 5 for the auxiliary combustion chamber 1 leads from the auxiliary combustion chamber 1 into a main combustion chamber 6 of the main cylinder.
  • the outlet port 5 is directed so that flame produced in the auxiliary combustion chamber 1 is directed toward and into the main combustion chamber 6.
  • An ignition means 7 of a spark plug 8 is able to ignite fuel/air mixtures within the auxiliary combustion chamber 1 to produce that flame.
  • the body portion 2 has a spark plug socket 9 for mounting the spark plug 8 thereon.
  • a relatively rich fuel/air mixture is directed to the auxiliary combustion chamber 1 by flowing along an inlet passage 10 through an inlet port 13 and past an inlet valve 11.
  • the valve 11 is controlled by a solenoid 12 which may be driven by a switch gear on an existing cam shaft (not illustrated).
  • the valve 11 is positioned to control flow of fuel/air mixtures at an Inlet port 13.
  • a relatively lean fuel/air mixture is directed into the main combustion chamber 6 of the main cylinder along the inlet passage 14 and through an inlet valve 15. Both valve 11 and valve 15 open during an induction stroke of a piston 16 drawing fuel/air mixtures into the auxiliary and main combustion chambers 1 and 8.
  • a housing 53 Located on the outside of the tubular member 52 is a housing 53 provided with a water cooling bore 54 and spigots 56 at each end of the bore 54 for connection to a source of cooling water.
  • the housing 53 also has a bore 57 which is threaded at 58 and within which can be received, as shown, a conventional spark plug 59.
  • a valve carrier 51 comprising a body 62, an inlet passage 63, a valve 64, an inlet port 65 defined by the valve 64 and a seat 67, a valve spring 68, a valve spring retainer 69 and an inlet spigot 70.
  • the inlet spigot 70 is connected in use to a source of a rich fuel/air mixture such as by means of a tubular manifold part 71.
  • Various seal members 72, 73, 74 and 75 are provided for creating seals.
  • the tubular member 52 is apertured at 81 to communicate the interior 82 of the tubu l ar member with the bore 57 and which interior 82 and bore 57 together def ine an auxi l iary combustion chamber 85 hav ing an outl et 87 which , in use, will be communication with said main combustion chamber.
  • the engine part 51 wil l operate in simil ar manner to the engine part described with respect to Fig 1 but the fol lowing differences are to be noted.
  • the baff le 55 wil l restrict dilution of a rich fuel/air mixture in the auxiliary combustion chamber 86 by a l ean fue l/air mixture in said main combustion chamber and wil l further tend to direct f lame initiated in the auxiliary combustion chamber to exit via the outlet 87 rather than to travel towards the valve 64.
  • the val ve 64 is not opened by any mechanical coupling or by app l ication of interna l f orce but instead opens to a l l ow in l et of a rich fue l /air mixture into the auxi l iary combustion chamber 86 in consequence only of vacuum induced during an induction stroke of the engine.

Abstract

Un accessoire de moteur (P) fournit une chambre de combustion auxiliaire (1) pour des moteurs traditionnels à combustion interne à quatre temps sous la forme d'une chambre de précombustion destinée à être insérée dans la douille existante (4) d'une bougie d'allumage dans la tête (E) du moteur. La chambre de précombustion comporte une partie de corps (2) formant une chambre de combustion auxiliaire (1), un orifice d'émission (5) dans une connexion filetée (3) assurant une communication avec la chambre de combustion principale (6), une douille (9) qui reçoit une bougie d'allumage (8) et un orifice d'admission (13) qui reçoit un mélange de carburant et d'air riche en carburant. L'orifice d'admission (13) peut être pourvu d'une soupape (11) commandée par un solénoïde (12) ou par le vide du moteur et l'orifice d'émission (5) peut être pourvu d'une chicane (19) destinée à diriger la flamme provenant de la chambre de précombustion au fond de la chambre de combustion principale.
PCT/AU1987/000258 1986-08-12 1987-08-11 Chambre de combustion auxiliaire WO1988001338A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH7405 1986-08-12
AU740586 1986-08-12

Publications (1)

Publication Number Publication Date
WO1988001338A1 true WO1988001338A1 (fr) 1988-02-25

Family

ID=3698082

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1987/000258 WO1988001338A1 (fr) 1986-08-12 1987-08-11 Chambre de combustion auxiliaire

Country Status (1)

Country Link
WO (1) WO1988001338A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271808A (en) * 1992-10-20 1994-04-27 John Harold Weaving Pre-combustion chamber spark-ignition engine.
CN101984233A (zh) * 2010-11-10 2011-03-09 东风朝阳柴油机有限责任公司 带有二级喷孔预燃的涡流式副燃烧室
US20160003657A1 (en) * 2012-12-19 2016-01-07 Imagineering, Inc. Measurement implement, measuring system and measuring method
CN113006928A (zh) * 2021-03-22 2021-06-22 西安交通大学 具有预燃室的发动机及其工作方式

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB142197A (en) * 1919-01-30 1920-04-30 Frederick Arthur Smith Improvements in or relating to ignition-devices for internal-combustion engines
DE371494C (de) * 1921-01-14 1923-03-16 Wilhelm Eberhard Ernst Verfahren zur Verbrennung schwerer Brennstoffe in schnellaufenden Verpuffungsmotoren
DE372604C (de) * 1921-02-04 1923-03-29 Wilhelm Eberhard Ernst Verfahren zur Verbrennung schwerer Brennstoffe in schnellaufenden Verpuffungsmotoren
DE391788C (de) * 1922-09-24 1924-03-14 Dipl Raufm Eberhard Gottschau Explosionsmotor mit Hilfsexplosionskammer
US1925086A (en) * 1931-07-23 1933-09-05 James O Snyder Compression control device for internal combustion engines
AU1127047A (en) * 1947-04-08 1948-04-08 James Johnstone Ney Improvements in or relating to internal Combustion engines
US3066661A (en) * 1960-08-26 1962-12-04 Walker Mfg Co Ignition device for internal combustion engines
US3154058A (en) * 1962-01-02 1964-10-27 Glenn B Warren Internal combustion engine operating on stratified combustion principle with explosive fuel injection
US3213839A (en) * 1963-04-05 1965-10-26 Gitlin Neukh Nakhimovich Device for modifying spark ignition in carburetor engines into torch ignition
US3406667A (en) * 1966-09-29 1968-10-22 Alvin W. Evans Ignition amplifying apparatus
US3908625A (en) * 1974-02-25 1975-09-30 Stephen Romy Spark plug with built-in precombustion chamber
US4006725A (en) * 1975-03-17 1977-02-08 Baczek And James Company, Inc. Spark plug construction for lean mixture burning internal combustion engines
US4074664A (en) * 1976-02-12 1978-02-21 Astron Innovations, Inc. Fuel control system for internal combustion engines
US4123998A (en) * 1976-03-15 1978-11-07 Heintzelman Leo A Flame deflector for the auxiliary combustion chamber of an internal combustion engine
US4182281A (en) * 1977-07-18 1980-01-08 Heintzelman Leo A Spark plug adapter and process
US4338897A (en) * 1980-08-06 1982-07-13 Drumheller Dale G Auxiliary precombustion chamber and combustion distributor for an internal combustion engine
US4433660A (en) * 1981-10-22 1984-02-28 Blaser Richard Florencio Fueling system for internal combustion engine

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB142197A (en) * 1919-01-30 1920-04-30 Frederick Arthur Smith Improvements in or relating to ignition-devices for internal-combustion engines
DE371494C (de) * 1921-01-14 1923-03-16 Wilhelm Eberhard Ernst Verfahren zur Verbrennung schwerer Brennstoffe in schnellaufenden Verpuffungsmotoren
DE372604C (de) * 1921-02-04 1923-03-29 Wilhelm Eberhard Ernst Verfahren zur Verbrennung schwerer Brennstoffe in schnellaufenden Verpuffungsmotoren
DE391788C (de) * 1922-09-24 1924-03-14 Dipl Raufm Eberhard Gottschau Explosionsmotor mit Hilfsexplosionskammer
US1925086A (en) * 1931-07-23 1933-09-05 James O Snyder Compression control device for internal combustion engines
AU1127047A (en) * 1947-04-08 1948-04-08 James Johnstone Ney Improvements in or relating to internal Combustion engines
US3066661A (en) * 1960-08-26 1962-12-04 Walker Mfg Co Ignition device for internal combustion engines
US3154058A (en) * 1962-01-02 1964-10-27 Glenn B Warren Internal combustion engine operating on stratified combustion principle with explosive fuel injection
US3213839A (en) * 1963-04-05 1965-10-26 Gitlin Neukh Nakhimovich Device for modifying spark ignition in carburetor engines into torch ignition
US3406667A (en) * 1966-09-29 1968-10-22 Alvin W. Evans Ignition amplifying apparatus
US3908625A (en) * 1974-02-25 1975-09-30 Stephen Romy Spark plug with built-in precombustion chamber
US4006725A (en) * 1975-03-17 1977-02-08 Baczek And James Company, Inc. Spark plug construction for lean mixture burning internal combustion engines
US4074664A (en) * 1976-02-12 1978-02-21 Astron Innovations, Inc. Fuel control system for internal combustion engines
US4123998A (en) * 1976-03-15 1978-11-07 Heintzelman Leo A Flame deflector for the auxiliary combustion chamber of an internal combustion engine
US4182281A (en) * 1977-07-18 1980-01-08 Heintzelman Leo A Spark plug adapter and process
US4338897A (en) * 1980-08-06 1982-07-13 Drumheller Dale G Auxiliary precombustion chamber and combustion distributor for an internal combustion engine
US4433660A (en) * 1981-10-22 1984-02-28 Blaser Richard Florencio Fueling system for internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271808A (en) * 1992-10-20 1994-04-27 John Harold Weaving Pre-combustion chamber spark-ignition engine.
GB2271808B (en) * 1992-10-20 1995-09-06 John Harold Weaving A pre-chamber internal combustion engine
CN101984233A (zh) * 2010-11-10 2011-03-09 东风朝阳柴油机有限责任公司 带有二级喷孔预燃的涡流式副燃烧室
US20160003657A1 (en) * 2012-12-19 2016-01-07 Imagineering, Inc. Measurement implement, measuring system and measuring method
CN113006928A (zh) * 2021-03-22 2021-06-22 西安交通大学 具有预燃室的发动机及其工作方式
CN113006928B (zh) * 2021-03-22 2022-09-23 西安交通大学 具有预燃室的发动机及其工作方式

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