WO2022129988A1 - Improved four-stroke internal combustion engine - Google Patents

Improved four-stroke internal combustion engine Download PDF

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Publication number
WO2022129988A1
WO2022129988A1 PCT/IB2020/061950 IB2020061950W WO2022129988A1 WO 2022129988 A1 WO2022129988 A1 WO 2022129988A1 IB 2020061950 W IB2020061950 W IB 2020061950W WO 2022129988 A1 WO2022129988 A1 WO 2022129988A1
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WIPO (PCT)
Prior art keywords
piston
cylinder
port
fuel
crankshaft
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PCT/IB2020/061950
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Spanish (es)
French (fr)
Inventor
Emilio Bartolome Gonzalez
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Emilio Bartolome Gonzalez
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Application filed by Emilio Bartolome Gonzalez filed Critical Emilio Bartolome Gonzalez
Priority to PCT/IB2020/061950 priority Critical patent/WO2022129988A1/en
Publication of WO2022129988A1 publication Critical patent/WO2022129988A1/en

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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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
    • 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
    • F02B9/00—Engines characterised by other types of ignition
    • F02B9/02—Engines characterised by other types of ignition with compression ignition
    • F02B9/04—Methods of operating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/12—Rotary or oscillatory slide valve-gear or valve arrangements specially for two-stroke engines

Definitions

  • the proposed invention relates to a four-stroke internal combustion engine that performs all four strokes (intake, compression, explosion and exhaust) in a single revolution of the crankshaft.
  • the field of the invention is that of the mechanical industry and mechanical engineering aimed at the automotive industry.
  • Reciprocating internal combustion engines also often called piston engines or piston engines, are heat engines in which the gases generated in the exothermic reaction resulting from a combustion process push a plunger or piston in an alternating movement, displacing it in inside a cylinder and turning a crankshaft, finally obtaining a rotation movement. They are commonly known as internal combustion engines, and their ignition by compression is also possible.
  • the motors are classified as: o Four-stroke engine, or 4T in which the work cycle is completed in four strokes of the piston and two revolutions of the crankshaft.
  • charge renewal is controlled by the opening and closing of the intake and exhaust valves.
  • Two-stroke engine, or 2T the work cycle is completed in two strokes of the piston and one revolution of the crankshaft.
  • the renewal of the load is achieved by sweeping, by displacing the new mixture of gases from the previous combustion, without the need for valves (in diesel it has an exhaust) since it is now the piston itself that, with its movement, discovers the intake and exhaust ports (Otto cycle only) regulating the process.
  • the proposed invention combines the advantages of the two previous ones. It is reliable because the structure and operation is the same as that of a four-stroke engine, but since there is an explosion every turn of the crankshaft, the power at the same number of revolutions is multiplied by two. In this way, smaller engines can be manufactured, with less weight, while reducing the rotating mass. All this favors efficiency and reduces consumption and production costs.
  • the device advocated in this invention is more effective than all the previous ones, due to its efficiency and cost.
  • the proposed invention refers to a four-stroke internal combustion engine that performs the four strokes (intake, compression, explosion and exhaust) in a single turn of the crankshaft by introducing an intake valve for clean air and a port for exhaust for combustion gases.
  • the internal operation of the four-stroke is as follows: o Explosion: when the piston is at the top of the cylinder, detonation occurs (either by a spark or as a result of fuel compression) The gases expand, and move the piston to the end of its stroke. o Exhaust: when the piston is about to reach the end of its stroke, the exhaust gases are expelled through a port. o Admission: Immediately after the gases are evacuated through the port, the intake valve opens. For faster cylinder filling the air will be pressurized by means of a compressor. The pressurized air fills the cylinder and helps evacuate the rest of the exhaust gases. At this time the crankshaft is making a half turn. o Compression: the piston resumes its upward stroke, covers the port and closes the intake valve. At that moment, the compression of the air begins. When the piston reaches the upper part, a detonation is produced according to a traditional explosion/combustion engine.
  • FIGURE 1 Schematic view of the motor
  • the proposed invention refers to a four-stroke internal combustion engine that performs the four strokes (intake, compression, explosion and exhaust) in a single turn of the crankshaft by introducing an intake valve (6) for air with the fuel mixture (10) and an exhaust port (7) for the combustion gases both located in strategic places.
  • the intake valve (6) opens through which, for a faster filling of the cylinder (8), the air together with the fuel (10) will be pressurized by means of a compressor (12). the air together With the fuel (10) thus pressurized, it fills the cylinder (3), and helps to evacuate the rest of the exhaust gases through the port (7).
  • crankshaft (5) is turning half a turn.
  • the piston (3) resumes its upward stroke, covers the port (7) and the intake valve (6) closes. At that time, the compression of the pressurized air and fuel begins.

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  • 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)

Abstract

An internal combustion engine that performs the four strokes (induction, compression, ignition, exhaust) in a single rotation of the crankshaft, characterised in that during the operation of the engine, when the piston reaches the end of its travel the exhaust gases are expelled through the vent, openinng the inlet valve so the air, together with the fuel thus pressurised, fills the cylinder and aids the discharge of the remainder of the exhaust gases through the vent; at this moment the crankshaft makes half a turn; and when the piston resumes its upward travel it covers the vent and the inlet valve closes; and when the piston reaches the top of the cylinder, a detonation occurs, recommencing the cycle.

Description

MOTOR DE COMBUSTIÓN INTERNA DE CUATRO TIEMPOS MEJORADO IMPROVED FOUR-STROKE INTERNAL COMBUSTION ENGINE
DESCRIPCIÓNDESCRIPTION
OBJETO DE LA INVENCION OBJECT OF THE INVENTION
La invención preconizada se refiere a un motor de combustión interna en cuatro tiempos que realiza los cuatro tiempos (admisión, compresión, explosión y escape) en una sola vuelta del cigüeñal. The proposed invention relates to a four-stroke internal combustion engine that performs all four strokes (intake, compression, explosion and exhaust) in a single revolution of the crankshaft.
De esta forma con un motor más pequeño se obtiene la misma potencia favoreciendo la eficiencia y disminuyendo el consumo y los costes de producción. In this way, with a smaller motor, the same power is obtained, favoring efficiency and reducing consumption and production costs.
CAMPO DE LA INVENCION FIELD OF THE INVENTION
El campo de la invención es el de la industria mecánica y de ingeniería mecánica dirigida a la automoción. The field of the invention is that of the mechanical industry and mechanical engineering aimed at the automotive industry.
También tiene aplicaciones dentro de otras industrias que utilicen motores de combustión interna. It also has applications within other industries that use internal combustion engines.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
Los motores de combustión interna alternativos, también a menudo llamados motor de pistón o motor de émbolo, son motores térmicos en los que los gases generados en la reacción exotérmica resultante de un proceso de combustión empujan un émbolo o pistón en un movimiento alternativo, desplazándolo en el interior de un cilindro y haciendo girar un cigüeñal, obteniendo finalmente un movimiento de rotación. Son vulgarmente conocidos como motores de explosión, siendo posible también su encendido mediante compresión. Reciprocating internal combustion engines, also often called piston engines or piston engines, are heat engines in which the gases generated in the exothermic reaction resulting from a combustion process push a plunger or piston in an alternating movement, displacing it in inside a cylinder and turning a crankshaft, finally obtaining a rotation movement. They are commonly known as internal combustion engines, and their ignition by compression is also possible.
El funcionamiento cíclico de estos motores implica la necesidad de sustituir los gases de la combustión por nueva mezcla de aire y combustible en el interior del cilindro; esta mezcla es aproximadamente, 16 partes de aire por una de combustible; este proceso se denomina renovación de la carga. The cyclic operation of these engines implies the need to replace the combustion gases with a new mixture of air and fuel inside the cylinder; this mixture is approximately 16 parts of air to one of fuel; this process is called charge renewal.
Según la forma de hacer la renovación de la carga los motores se clasifican en: o Motor de cuatro tiempos, o 4T en los que el ciclo de trabajo se completa en cuatro carreras del émbolo y dos vueltas del cigüeñal. En estos motores, la renovación de la carga se controla mediante la apertura y cierre de las válvulas de admisión y escape. o Motor de dos tiempos, o 2T el ciclo de trabajo se completa en dos carreras del émbolo y una vuelta del cigüeñal. La renovación de la carga se logra por barrido, al desplazar la nueva mezcla los gases de la combustión previa, sin la necesidad de válvulas, (en los diésel lleva de escape) ya que es ahora el propio émbolo el que con su movimiento descubre las lumbreras de admisión y escape (solo ciclo Otto) regulando el proceso. According to the way of renewing the load, the motors are classified as: o Four-stroke engine, or 4T in which the work cycle is completed in four strokes of the piston and two revolutions of the crankshaft. In these engines, charge renewal is controlled by the opening and closing of the intake and exhaust valves. o Two-stroke engine, or 2T, the work cycle is completed in two strokes of the piston and one revolution of the crankshaft. The renewal of the load is achieved by sweeping, by displacing the new mixture of gases from the previous combustion, without the need for valves (in diesel it has an exhaust) since it is now the piston itself that, with its movement, discovers the intake and exhaust ports (Otto cycle only) regulating the process.
En un motor de cuatro tiempos se produce una detonación cada dos vueltas del cigüeñal, en un motor de dos tiempos se produce una detonación cada vuelta del cigüeñal, pero dada su construcción no tienen un cárter contenedor de aceite, por lo que se lubrican por aceite mezclado con la gasolina, por ello son motores con una vida muy corta. In a four-stroke engine a detonation occurs every two turns of the crankshaft, in a two-stroke engine a detonation occurs every turn of the crankshaft, but given their construction they do not have an oil container sump, so they are lubricated by oil mixed with gasoline, therefore they are engines with a very short life.
Los motores habituales son los de cuatro tiempos, son motores fiables, y se produce una combustión cada dos vueltas del cigüeñal, The usual engines are four-stroke, they are reliable engines, and combustion occurs every two turns of the crankshaft,
La invención preconizada combina las ventajas de los dos anteriores. Es fiable porque la estructura y funcionamiento es la misma que la de un motor de cuatro tiempos, pero al haber una explosión cada vuelta del cigüeñal la potencia a igual número de revoluciones, se multiplica por dos. De ese modo se pueden fabricar motores más pequeños, con menos peso, al tiempo que se disminuye la masa en rotación. Todo ello favorece la eficiencia y disminuye el consumo y costes de producción. The proposed invention combines the advantages of the two previous ones. It is reliable because the structure and operation is the same as that of a four-stroke engine, but since there is an explosion every turn of the crankshaft, the power at the same number of revolutions is multiplied by two. In this way, smaller engines can be manufactured, with less weight, while reducing the rotating mass. All this favors efficiency and reduces consumption and production costs.
El dispositivo preconizado en esta invención supera en efectividad a todos los anteriores, por su eficacia y coste. The device advocated in this invention is more effective than all the previous ones, due to its efficiency and cost.
Por lo que consideramos que las características de esta invención son nuevas y no se encuentran anticipadas todas unidas en ninguna realización anterior. Therefore, we consider that the characteristics of this invention are new and are not all anticipated together in any previous embodiment.
Por parte del inventor no se conoce ninguna anterioridad que incorpore las disposiciones que presenta la actual invención, ni las ventajas que conlleva dicha disposición. DESCRIPCION DE LA INVENCION The inventor is not aware of any previous information that incorporates the provisions presented by the current invention, nor the advantages that said provision entails. DESCRIPTION OF THE INVENTION
La invención preconizada se refiere a un motor de combustión interna en cuatro tiempos que realiza los cuatro tiempos (admisión, compresión, explosión y escape) en una sola vuelta del cigüeñal mediante la introducción de una válvula de admisión para el aire limpio y una lumbrera de escape para los gases de la combustión. The proposed invention refers to a four-stroke internal combustion engine that performs the four strokes (intake, compression, explosion and exhaust) in a single turn of the crankshaft by introducing an intake valve for clean air and a port for exhaust for combustion gases.
Siendo el funcionamiento interno de los cuatro tiempos de la siguiente forma: o Explosión: cuando el pistón está en la parte alta del cilindro ocurre la detonación (sea por medio de una chispa o como resultado de una compresión del combustible) Los gases se expanden, y desplazan al pistón hasta el final de su recorrido. o Escape: cuando el pistón está a punto de llegar al final de su recorrido los gases de escape son expulsados a través de una lumbrera. o Admisión: Inmediatamente después de que los gases sean evacuados por la lumbrera, se abre la válvula de admisión. Para un llenado del cilindro más veloz el aire estará presurizado por medio de un compresor. El aire presurizado, llena el cilindro, y ayuda a evacuar el resto de los gases de escape. En este momento el cigüeñal está dando una media vuelta. o Compresión: el pistón retoma su carrera ascendente, tapa la lumbrera y se cierra la válvula de admisión. En ese momento, comienza la compresión del aire. Al llegar el pistón a la parte superior se produce una detonación según un motor de explosión/combustión, tradicional. The internal operation of the four-stroke is as follows: o Explosion: when the piston is at the top of the cylinder, detonation occurs (either by a spark or as a result of fuel compression) The gases expand, and move the piston to the end of its stroke. o Exhaust: when the piston is about to reach the end of its stroke, the exhaust gases are expelled through a port. o Admission: Immediately after the gases are evacuated through the port, the intake valve opens. For faster cylinder filling the air will be pressurized by means of a compressor. The pressurized air fills the cylinder and helps evacuate the rest of the exhaust gases. At this time the crankshaft is making a half turn. o Compression: the piston resumes its upward stroke, covers the port and closes the intake valve. At that moment, the compression of the air begins. When the piston reaches the upper part, a detonation is produced according to a traditional explosion/combustion engine.
DESCRIPCION DE LOS DIBUJOS DESCRIPTION OF THE DRAWINGS
Para una mejor comprensión de la invención se adjunta una hoja de planos en la que se aprecia lo siguiente For a better understanding of the invention, a sheet of plans is attached in which the following can be seen
FIGURA 1.- Vista esquemática del motor FIGURE 1.- Schematic view of the motor
Y en dichas figuras, con la misma referencia se denominan idénticos elementos, entre los que distinguimos: (1) Cabeza del motor (culata) And in these figures, with the same reference identical elements are called, among which we distinguish: (1) Engine head (cylinder head)
(2) Bloque motor (2) Engine block
(3) Pistón (3) Piston
(4) Biela (4) connecting rod
(5) Cigüeñal (5) Crankshaft
(6) Válvula de admisión. (6) Inlet valve.
(7) Lumbrera de escape. (7) Exhaust port.
(8) Cilindro. (8) Cylinder.
(9) Paredes del cilindro (9) Cylinder walls
(10) Mezcla de aire y combustible. (10) Air-fuel mixture.
(11) elemento de ignición. (11) ignition element.
(12) Compresor (12) Compressor
(13) Entrada de aire. (13) Air intake.
(14) Entrada de combustible (14) Fuel inlet
REALIZACION PREFERENTE DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION
La invención preconizada se refiere a un motor de combustión interna en cuatro tiempos que realiza los cuatro tiempos (admisión, compresión, explosión y escape) en una sola vuelta del cigüeñal mediante la introducción de una válvula de admisión (6) para el aire con la mezcla de combustible (10) y una lumbrera de escape (7) para los gases de la combustión situadas ambas en lugares estratégicos. The proposed invention refers to a four-stroke internal combustion engine that performs the four strokes (intake, compression, explosion and exhaust) in a single turn of the crankshaft by introducing an intake valve (6) for air with the fuel mixture (10) and an exhaust port (7) for the combustion gases both located in strategic places.
Se trata de un motor que realiza los cuatro tiempos (admisión, compresión, explosión y escape) en una sola vuelta del cigüeñal (5) de forma que en el momento de la explosión, cuando el pistón (3) se encuentra en la parte alta del cilindro (8) ocurre la detonación, sea por medio de una chispa producida por el elemento de ignición (11) o como resultado de una compresión del combustible, los gases se expanden y desplazan al pistón (3) a lo largo de las paredes del pistón (9) hasta el final de su recorrido. It is an engine that performs the four strokes (intake, compression, explosion and exhaust) in a single turn of the crankshaft (5) so that at the moment of explosion, when the piston (3) is at the top of the cylinder (8) detonation occurs, either by means of a spark produced by the ignition element (11) or as a result of a compression of the fuel, the gases expand and displace the piston (3) along the walls of the piston (9) until the end of its travel.
A continuación cuando el pistón (3) está a punto de llegar al final de su recorrido los gases de escape son expulsados a través de la lumbrera (7). Then, when the piston (3) is about to reach the end of its stroke, the exhaust gases are expelled through the port (7).
Inmediatamente después de que los gases sean evacuados por la lumbrera (7), se abre la válvula de admisión (6) por donde para un llenado del cilindro (8) más veloz el aire junto con el combustible (10) estará presurizado por medio de un compresor (12). El aire junto con el combustible (10) así presurizado, llena el cilindro (3), y ayuda a evacuar el resto de los gases de escape por la lumbrera (7). Immediately after the gases are evacuated through the port (7), the intake valve (6) opens through which, for a faster filling of the cylinder (8), the air together with the fuel (10) will be pressurized by means of a compressor (12). the air together With the fuel (10) thus pressurized, it fills the cylinder (3), and helps to evacuate the rest of the exhaust gases through the port (7).
En este momento el cigüeñal (5) está dando media vuelta. At this moment the crankshaft (5) is turning half a turn.
El pistón (3) retoma su carrera ascendente, tapa la lumbrera (7) y se cierra la válvula de admisión (6). En ese momento, comienza la compresión del aire y combustible presurizado. The piston (3) resumes its upward stroke, covers the port (7) and the intake valve (6) closes. At that time, the compression of the pressurized air and fuel begins.
Al llegar el pistón (3) a la parte superior del cilindro (8) se produce una detonación, según sea un motor de explosión por medio elemento de ignición (12) o mediante explosión por presión, iniciándose otra vez el ciclo. When the piston (3) reaches the upper part of the cylinder (8), a detonation is produced, depending on whether it is an internal combustion engine by means of an ignition element (12) or by pressure explosion, starting the cycle again.
Descrita suficientemente la naturaleza de la invención, así como la manera de llevarse a la práctica, debe hacerse constar que las disposiciones anteriormente indicadas y representadas en los dibujos adjuntos son susceptibles de modificaciones de detalle en cuanto no alteren sus principios fundamentales, establecidos en los párrafos anteriores y resumidos en las siguientes reivindicaciones. Having sufficiently described the nature of the invention, as well as the way of putting it into practice, it should be noted that the provisions indicated above and represented in the attached drawings are susceptible to detailed modifications as long as they do not alter their fundamental principles, established in the paragraphs above and summarized in the following claims.

Claims

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REIVINDICACIONES
1a.- Motor de combustión interna en cuatro tiempos que realiza los cuatro tiempos (admisión, compresión, explosión y escape) en una sola vuelta del cigüeñal caracterizado porque el motor se encuentra constituido por un bloque motor convencional con pistón (3) que se desliza por las paredes (9) de un cilindro hueco (3) que traspasa dicho bloque y presentando dicho bloque en su lateral una lumbrera de escape (7) y en su parte superior una culata de cierre (1) que presenta a su vez un elemento de ignición (12) y en la parte opuesta un taladro pasante con una válvula de admisión (6) que introduce en el cilindro (3) una mezcla de aire comprimido y combustible (10) mediante un compresor (12) alimentado por una vía de aire (13) y otra de combustible (14) y donde el pistón 1 a.- Four-stroke internal combustion engine that performs the four strokes (intake, compression, explosion and exhaust) in a single revolution of the crankshaft, characterized in that the engine is made up of a conventional engine block with a piston (3) that is slides along the walls (9) of a hollow cylinder (3) that passes through said block and said block having an exhaust port (7) on its side and a closing cylinder head (1) on its upper part, which in turn has a ignition element (12) and on the opposite side a through hole with an intake valve (6) that introduces a mixture of compressed air and fuel (10) into the cylinder (3) by means of a compressor (12) fed by a line of air (13) and another of fuel (14) and where the piston
(3) está anclado a una biela (3) is anchored to a connecting rod
(4) cuyo extremo es coaxial con un cigüeñal. (4) whose end is coaxial with a crankshaft.
2a.- Motor de combustión interna en cuatro tiempos que realiza los cuatro tiempos (admisión, compresión, explosión y escape) en una sola vuelta del cigüeñal de acuerdo con la 1a reivindicación y caracterizado porque el funcionamiento del motor se inicia en el momento de la explosión, cuando el pistón (3) se encuentra en la parte alta del cilindro (8) y ocurre la detonación por medio de una chispa producida por el elemento de ignición (11) momento en el que los gases se expanden y desplazan al pistón (3) a lo largo de las paredes del pistón (9) hasta el final de su recorrido y cuando el pistón (3) está a punto de llegar al final de su recorrido los gases de escape son expulsados a través de la lumbrera (7) e inmediatamente después de que los gases sean evacuados por la lumbrera (7), se abre la válvula de admisión (6) por donde para un llenado del cilindro (8) más veloz, el aire que entra por la toma (13) junto con la entrada de combustible (14) se presuriza por medio de un compresor (12), por lo que el aire junto con el combustible (10) así presurizado, llena el cilindro (3), y ayuda a evacuar el resto de los gases de escape por la lumbrera (7), estando en este momento el cigüeñal 2 .- Four - stroke internal combustion engine that performs the four strokes (intake, compression, explosion and exhaust) in a single turn of the crankshaft according to claim 1 and characterized in that the operation of the engine starts at the moment of the explosion, when the piston (3) is in the upper part of the cylinder (8) and detonation occurs by means of a spark produced by the ignition element (11), at which time the gases expand and displace the piston (3) along the walls of the piston (9) until the end of its stroke and when the piston (3) is about to reach the end of its stroke the exhaust gases are expelled through the port ( 7) and immediately after the gases are evacuated through the port (7), the intake valve (6) opens through which, for a faster filling of the cylinder (8), the air that enters through the intake (13) together with the fuel inlet (14) it is pressurized by means of a compressor (12), so the air together with the fuel (10) thus pressurized, fills the cylinder (3), and helps to evacuate the rest of the exhaust gases through the port (7), being at this moment the crankshaft
(5) dando media vuelta; retomando el pistón (3) su carrera ascendente, tapa la lumbrera (7) y se cierra la válvula de admisión (5) turning around; the piston (3) resuming its ascending stroke, covers the port (7) and the intake valve closes
(6), comenzando la compresión del aire y combustible presurizado y al llegar el pistón (3) a la parte superior del cilindro (8) se produce una detonación por medio elemento de ignición (12) iniciándose otra vez el ciclo con la otra media vuelta del cigüeñal. (6), beginning the compression of the pressurized air and fuel and when the piston (3) reaches the upper part of the cylinder (8), a detonation is produced by means of the ignition element (12), starting the cycle again with the other half. crankshaft turn.
3a.- Motor de combustión interna en cuatro tiempos que realiza los cuatro tiempos (admisión, compresión, explosión y escape) en una sola vuelta del cigüeñal de acuerdo con la 1a reivindicación y caracterizado porque el funcionamiento del motor no trabaje con ignición si no con compresión, cuando el pistón (3) se encuentra en la parte alta del cilindro 3rd.- Four - stroke internal combustion engine that performs the four strokes (intake, compression, explosion and exhaust) in a single turn of the crankshaft according to claim 1 and characterized in that the operation of the engine does not work with ignition if not with compression, when the piston (3) is at the top of the cylinder
7 7
(8) ocurre la detonación como resultado de una compresión del combustible, los gases se expanden y desplazan al pistón (3) hasta el final de su recorrido y a continuación cuando el pistón (3) está a punto de llegar al final de su recorrido los gases de escape son expulsados a través de la lumbrera (7) e inmediatamente después de que los gases sean evacuados por la lumbrera (7), se abre la válvula de admisión (6) por donde para un llenado del cilindro (8) más veloz el aire junto con el combustible (10) estará presurizado por medio de un compresor y donde el aire junto con el combustible (10) así presurizado, llena el cilindro (3), y ayuda a evacuar el resto de los gases de escape por la lumbrera (7) y estando en este momento el cigüeñal (5) dando media vuelta por lo que el pistón (3) retoma su carrera ascendente, tapa la lumbrera (7) y se cierra la válvula de admisión (6). En ese momento, comienza la compresión del aire y al llegar el pistón (3) a la parte superior del cilindro (8) se produce una detonación mediante explosión por presión, iniciándose otra vez el ciclo. (8) the detonation occurs as a result of a compression of the fuel, the gases expand and displace the piston (3) until the end of its travel and then when the piston (3) is about to reach the end of its travel the exhaust gases are expelled through the port (7) and immediately after the gases are evacuated through the port (7), the intake valve (6) opens through which for a faster filling of the cylinder (8) the air together with the fuel (10) will be pressurized by means of a compressor and where the air together with the fuel (10) thus pressurized, fills the cylinder (3), and helps to evacuate the rest of the exhaust gases through the port (7) and while the crankshaft (5) is turning half a turn, the piston (3) resumes its upward stroke, covers the port (7) and the intake valve (6) closes. At that moment, the compression of the air begins and when the piston (3) reaches the upper part of the cylinder (8) a detonation is produced by an explosion due to pressure, starting the cycle again.
PCT/IB2020/061950 2020-12-15 2020-12-15 Improved four-stroke internal combustion engine WO2022129988A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB963124A (en) * 1961-11-13 1964-07-08 Peugeot Cycles Valve for a two-stroke engine and engine comprising said valve
WO2012013715A1 (en) * 2010-07-28 2012-02-02 E2F Di Esposti Federici Ettore Discharge valve assembly for two-stroke engine, provided with cooling, non-contacting seal and self-cleaning
US20120067325A1 (en) * 2009-05-26 2012-03-22 Patrick Wathieu Method for operating an internal combustion engine and internal combustion engine in accordance with said method
WO2016128861A1 (en) * 2015-02-11 2016-08-18 Betamotor S.P.A. Injection system for two-stroke engines
WO2018047024A1 (en) * 2016-09-08 2018-03-15 Emak S.P.A. Two-stroke internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB963124A (en) * 1961-11-13 1964-07-08 Peugeot Cycles Valve for a two-stroke engine and engine comprising said valve
US20120067325A1 (en) * 2009-05-26 2012-03-22 Patrick Wathieu Method for operating an internal combustion engine and internal combustion engine in accordance with said method
WO2012013715A1 (en) * 2010-07-28 2012-02-02 E2F Di Esposti Federici Ettore Discharge valve assembly for two-stroke engine, provided with cooling, non-contacting seal and self-cleaning
WO2016128861A1 (en) * 2015-02-11 2016-08-18 Betamotor S.P.A. Injection system for two-stroke engines
WO2018047024A1 (en) * 2016-09-08 2018-03-15 Emak S.P.A. Two-stroke internal combustion engine

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