EP0223435B1 - Moteur à combustion interne à deux temps - Google Patents

Moteur à combustion interne à deux temps Download PDF

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Publication number
EP0223435B1
EP0223435B1 EP86308255A EP86308255A EP0223435B1 EP 0223435 B1 EP0223435 B1 EP 0223435B1 EP 86308255 A EP86308255 A EP 86308255A EP 86308255 A EP86308255 A EP 86308255A EP 0223435 B1 EP0223435 B1 EP 0223435B1
Authority
EP
European Patent Office
Prior art keywords
chamber
piston
cylinder
fuel
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86308255A
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German (de)
English (en)
Other versions
EP0223435A1 (fr
Inventor
Tai-Her Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from GB858526129A external-priority patent/GB8526129D0/en
Application filed by Individual filed Critical Individual
Priority to AT86308255T priority Critical patent/ATE86004T1/de
Publication of EP0223435A1 publication Critical patent/EP0223435A1/fr
Application granted granted Critical
Publication of EP0223435B1 publication Critical patent/EP0223435B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
    • F02B33/08—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the working-cylinder head arranged between working and pumping cylinders
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/04—Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
    • F02B33/10—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder
    • F02B33/14—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder working and pumping pistons forming stepped piston
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
    • 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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

Definitions

  • This invention relates to a reciprocating internal combustion engine including a separate gas chamber.
  • DE-C-504 514 describes and claims a two-stroke internal combustion engine including an operating piston/cylinder combination (b/a), a compressor piston/cylinder combination (d/c) with pistons (b/d) connected by a common hollow connecting rod (e) having control slots (f/fi) for scavenging air.
  • a rotary slide valve (g) serves, simultaneously, to control scavenging air and the paths for air-gas mixture between the compressor cylinder (c) and an operating cylinder (a).
  • the engine also includes a residual gas chamber (h) which communicates with a further rotary slide valve (l) via passages (i/ii).
  • a connecting duct (m) constituting a gas transport passage connects the compressor cylinder (c) above the piston (d) with the operating cylinder (a) above the piston (b).
  • a two-stroke internal combustion engine comprising an engine block (10) having an upper cylindrical gas chamber (102) and a lower cylindrical gas chamber (103), said lower chamber serving as a combustion chamber; a piston assembly comprising a lower piston (104) located in said lower gas chamber, an upper piston (108) located in said upper gas chamber and dividing said upper gas chamber into two portions including a top upper chamber portion and a bottom upper chamber portion, one of said two portions defining a compression chamber for a fuel/air mixture, and a shaft (117) connecting said upper and lower pistons for moving both upper and lower pistons in phase with one another; sealing means (118) permitting reciprocating movement of said connecting shaft within said upper and lower chambers and providing a seal between said upper and lower chambers; cooling means (116) jacketing said sealing means for cooling said sealing means; a fuel/air source providing a fuel/air mixture; upper chamber intake means (111) for allowing the fuel/air mixture from said fuel/air source to be introduced into said compression chamber; an inter-chamber passageway (113) for permitting
  • a first compression phase is obtained during downward movement of the upper piston (d) and high pressure combustion gases are forced into the combustion chamber (a) from a fixed point via the slots (f1) formed in the wall of the hollow connecting rod (e).
  • the relative axial positions of slots (f) and (f1) are fixed and cannot be adjusted unless the engine is stripped down and a new connecting rod used having a different formation of slots (f/f1).
  • Such non-adjustability necessitates the inclusion of the chamber (h) for accepting any residual combustible mixture remaining in the compression chamber.
  • Completion of the cycle of DE-C-504 514 is accomplished by secondary compression during upward movement of piston (b) and finally ignition which occurs at or just prior to top-dead-centre.
  • initial compression is achieved during downward movement of the piston 108 and the high pressure combustion mixture is forced into chamber 103 via the passage 113 under the control of valve 114.
  • Secondary compression is effected during upward movement of piston 104 and ignition takes place at or just prior to top-dead-centre.
  • a cylinder block 101 has an upper cylinder 102 and a lower cylinder 103.
  • the lower cylinder 103 has a lower piston 104 attached to a crank shaft 107 by a pin 105.
  • An upper piston 108 divides the upper cylinder 102 into upper and lower gas chambers 102' and 102.
  • a connecting rod 117 connects the two pistons 104 and 108 so that they are movable in synchronism, reaching top-dead centre and bottom-dead centre simultaneously.
  • An exhaust opening 109 is located at the lower-most stop point of the lower cylinder 103.
  • An ignition plug 110 is located in the vicinity of the top of the lower cylinder 103. When we use jet oil inlet 110', only fresh airs can come into the pressure input gas chamber.
  • An intake opening 111 is located in the vicinity of the lower most point of the upper gas chamber 102 and it is equipped with a single way valve 112.
  • one end of a gas transport passage 113 opens into the vicinity of the lower most region of the upper gas chamber 102.
  • the other end of the passage 113 opens into the uppermost region of the lower gas chamber 103, thereby interconnecting the chambers 102 and 103.
  • An intake valve 114 is used for controlling the opening and closing of the gas transport passage 113.
  • the valve 114 is controlled by a synchronisation mechanism M, driven by the engine crankshaft C.
  • the valve 114 opened to allow the combustion gas to enter the lower gas chamber 103 used for the combustion chamber.
  • the upper gas chamber 102' is formed above the upper piston 108 and an upper member 120 of the engine casing.
  • the upper member 120 includes one or more gas openings 119 which may be equipped with additional inlet and outlet valves not shown to form a pump for water, oil or gas, or for the movement of a pressurizing turbine.
  • An ignition coil may be used to ignite the combustible gases when the lower piston 104 has reached top dead centre.
  • combustible gases enter the upper gas chamber 102 through the intake opening 111 and the single way intake valve 112 during upward movement of the upper piston 108.
  • the intake valve 114 is opened, the combustible gases enter the lower gas chamber 103 through the combustion gas transport passage 113 and forces exhaust gases through the exhaust opening to atmosphere.
  • the ignition coil causes ignition plug 110 to operate and ignite the fresh combustible gases.
  • the upper piston 108 has completed its inlet stroke and is now ready for the compression phase of the cycle.
  • a cooling opening 116 is used for introducing coolant to cool an oil seal 118 surrounding the crankshaft 117, the outer oil tank, the cooling fan or the liquid pump, the cooling liquid tank and the start motor etc.
  • An internal combustion engine in accordance with the present invention possesses the following advantages.
  • 301 is an intake valve
  • 302 is an exhaust valve equipped at the upper side of the upper gas chamber or on the upper cover
  • 303 is an air filter connected to the front of the intake valve 301.
  • a pressure reservoir 304 is connected with the exhaust valve 302
  • 305 is a pressure reducing valve connected with the pressure reservoir 304
  • 306 is pressure manometer.
  • the embodiment of Figure 3 forms an air compressor system for driving the air-driven apparatus.
  • the compressor of Figure 3 may be driven by a turbine pressrizer as illustrated in Fig. 4.
  • 401 is an air drive turbine having an air pump outlet 402 coupled with an intake opening 403.
  • a gas pump inlet 404 is connected with a carburetor, not shown.
  • the upper section of the upper gas chamber and each side of the upper piston 406 form a gas pump chamber 405.
  • a pump inlet 407 is fitted with the single way valve 408, the pump outlet is connected with the drive inlet 409 of the turbine equipment and exhausts through outlet 410, so that the intake pressure increases during the running of the engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve Device For Special Equipments (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Claims (3)

  1. Moteur à combustion interne à deux temps comportant :
       un bloc-moteur (10) ayant une chambre à gaz cylindrique supérieure (102) et une chambre à gaz cylindrique inférieure (103), ladite chambre inférieure servant de chambre de combustion;
       un ensemble de pistons comportant un piston inférieur (104) disposé dans ladite chambre à gaz inférieure, un piston supérieur (108) disposé dans ladite chambre à gaz supérieure et divisant ladite chambre à gaz supérieure en deux parties comportant une partie de sommet de chambre supérieure et une partie de fond de chambre supérieure, une desdites deux parties définissant une chambre de combustion pour un mélange combustible/air, et un arbre (117) connectant lesdits pistons supérieur et inférieur pour déplacer les deux pistons supérieur et inférieur en phase l'un avec l'autre;
       des moyens d'étanchéité (118) permettant le mouvement alternatif dudit arbre de connexion et fournissant un joint entre lesdites chambres supérieure et inférieure;
       des moyens de refroidissement (116) enveloppant lesdits moyens d'étanchéité pour refroidir lesdits moyens d'étanchéité;
       une source combustible/air fournissant un mélange combustible/air;
       un moyen d'admission de chambre supérieure (111) pour permettre au mélange combustible/air provenant de ladite source combustible/air d'être introduit dans ladite chambre de compression;
       un passage (113) entre les deux chambres pour permettre l'écoulement du mélange combustible/air de ladite chambre de compression vers ladite chambre inférieure, ledit passage entre les chambres étant disposé au voisinage du sommet de ladite chambre inférieure;
       des moyens formant valve d'admission de chambre inférieure (114) pour contrôler l'écoulement du mélange combustible/air à partir dudit passage entre chambres vers ladite chambre inférieure;
       des moyens d'évacuation de chambre inférieure (109) pour permettre au contenu de ladite chambre à gaz inférieure d'être évacué à partir de ladite chambre à gaz inférieure, les moyens d'évacuation de la chambre inférieure étant situés au voisinage du fond de ladite chambre inférieure et commandés par le déplacement dudit piston inférieur; et
       des moyens d'allumage (110) pour allumer le contenu gazeux de ladite chambre inférieure, lesdits moyens d'allumage étant automatiquement et périodiquement excités et désexcités en coordination avec le fonctionnement automatique des moyens formant valve d'admission de ladite chambre inférieure;
       caractérisé en ce que,
       la chambre de compression est définie par ladite partie de fond de ladite chambre de gaz supérieure (102);
       le passage entre chambres (113) est situé dans une partie du bloc-moteur séparant ladite chambre de gaz supérieure (102) et ladite chambre de gaz inférieure (103) pour permettre l'écoulement du mélange combustible/air à partir de ladite partie de fond de ladite chambre supérieure directement vers ladite chambre inférieure;
       les moyens formant valve d'admission de la chambre inférieure (114) sont commandés par une came de vilebrequin;
       le moteur comporte des moyens d'admission de chambre supérieure unidirectionnels (112) pour empêcher le gaz de sortir de ladite partie de fond de ladite chambre à gaz supérieure à travers ladite admission de chambre supérieure;
       le mélange combustible/air passant de la source de mélange combustible/air successivement à travers lesdits moyens d'admission supérieurs unidirectionnels, ladite partie inférieure de ladite chambre supérieure, ledit passage entre chambres dans ledit bloc-moteur et lesdits moyens formant valve d'admission de la chambre inférieure commandés par la came du vilebrequin avant de pénétrer dans ladite chambre inférieure.
  2. Moteur à deux temps selon la revendication 1, dans lequel la partie (405) du cylindre de précompression qui se trouve du côté du piston en opposition à celle qui fonctionne pour la précompression, comporte des clapets (301, 302) de façon à constituer un ensemble monobloc moteur/pompe.
  3. Moteur à deux temps selon la revendication 1, dans lequel la partie (405) du cylindre de précompression qui se trouve du côté du piston opposé à celui qui réalise la précompression, entraîne un turbo-chargeur (401).
EP86308255A 1985-10-23 1986-10-23 Moteur à combustion interne à deux temps Expired - Lifetime EP0223435B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86308255T ATE86004T1 (de) 1985-10-23 1986-10-23 Zweitakt - brennkraftmaschine.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB858526129A GB8526129D0 (en) 1985-10-23 1985-10-23 Back & forth motion type of internal engine
GB8526129 1985-10-23
GB8527317 1985-11-06
GB858527317A GB8527317D0 (en) 1985-10-23 1985-11-06 Back & forth motion of internal engine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP92113454.0 Division-Into 1992-08-07

Publications (2)

Publication Number Publication Date
EP0223435A1 EP0223435A1 (fr) 1987-05-27
EP0223435B1 true EP0223435B1 (fr) 1993-02-24

Family

ID=26289920

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19920113454 Withdrawn EP0513868A3 (en) 1985-10-23 1986-10-23 A reciprocating internal combination engine including a separate gas chamber
EP86308255A Expired - Lifetime EP0223435B1 (fr) 1985-10-23 1986-10-23 Moteur à combustion interne à deux temps

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19920113454 Withdrawn EP0513868A3 (en) 1985-10-23 1986-10-23 A reciprocating internal combination engine including a separate gas chamber

Country Status (7)

Country Link
EP (2) EP0513868A3 (fr)
AT (1) ATE86004T1 (fr)
AU (1) AU606316B2 (fr)
CA (1) CA1333869C (fr)
DE (1) DE3687821T2 (fr)
ES (1) ES2037662T3 (fr)
IN (1) IN172321B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1248314B (it) * 1991-05-20 1995-01-05 Piaggio Veicoli Europ Testata per motori a c.i. con dispositivo per l'iniezione diretta di carburante assistita pneumaticamente
DE19523194C2 (de) * 1995-06-26 1997-07-31 Bernd Scheffel Vorrichtung zum intermittierenden Versprühen einer Flüssigkeit
CN114382589B (zh) * 2021-12-23 2023-03-07 李国忠 一种超高压进气富氧燃烧二冲程内燃机

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE223985C (fr) *
GB193651A (en) * 1922-02-08 1923-03-01 Guy Ernest Sidney Improvements in internal combustion engines
FR569117A (fr) * 1922-07-29 1924-04-07 Pompe automatique à simple ou à double effet
DE504514C (de) * 1927-07-23 1930-08-08 Bernhard Plage Zweitaktbrennkraftmaschine
FR644843A (fr) * 1927-11-10 1928-10-15 Perfectionnements aux moteurs à combustion interne
GB396369A (en) * 1930-10-30 1933-08-03 Sven Lindequist Improvements in and relating to internal combustion engines
BE540947A (fr) * 1954-08-31 1955-09-18
DE1214474B (de) * 1961-06-15 1966-04-14 Maschf Augsburg Nuernberg Ag Zweitakt-Brennkraftmaschine mit Abgasturbo-aufladung
DE1503581B1 (de) * 1965-05-04 1970-12-17 Maschf Augsburg Nuernberg Ag Mit Abgasturbo-Aufladung betriebene Zweitakt-Brennkraftmaschine
DE1526366A1 (de) * 1966-07-07 1970-10-29 Dietmar Wagner Kolbenmaschine zur Verdraengung und/oder zur Verdichtung eines Arbeitsmediums
FR2386684A1 (fr) * 1977-04-04 1978-11-03 Chrysler France Moteur deux temps a balayage equicourant
DE2743780A1 (de) * 1977-09-29 1979-04-12 Fichtel & Sachs Ag Einzylinder-hubkolben-brennkraftmaschine
DE2847731A1 (de) * 1978-11-03 1980-05-14 Fichtel & Sachs Ag Einzylinder-hubkolben-brennkraftmaschine
DE2901815A1 (de) * 1979-01-18 1980-07-31 Fichtel & Sachs Ag Viertakt-brennkraftmaschine mit stufenkolben
DE3201875A1 (de) * 1982-01-22 1983-08-04 Wolfgang Prof. Dipl.-Ing. 8201 Hochstätt Zimmermann Druch einen verbrennungsmotor angetriebene kolbenpumpe fuer arbeitsfluide
JPS58143121A (ja) * 1982-02-19 1983-08-25 Kawasaki Heavy Ind Ltd ２サイクルエンジン

Also Published As

Publication number Publication date
AU6431786A (en) 1987-04-30
IN172321B (fr) 1993-06-12
DE3687821D1 (de) 1993-04-01
EP0223435A1 (fr) 1987-05-27
DE3687821T2 (de) 1993-06-17
CA1333869C (fr) 1995-01-10
EP0513868A3 (en) 1993-06-16
ATE86004T1 (de) 1993-03-15
ES2037662T3 (es) 1993-07-01
EP0513868A2 (fr) 1992-11-19
AU606316B2 (en) 1991-02-07

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