WO2020130777A1 - Moteur à combustion interne à quatre temps - Google Patents

Moteur à combustion interne à quatre temps Download PDF

Info

Publication number
WO2020130777A1
WO2020130777A1 PCT/MX2019/000133 MX2019000133W WO2020130777A1 WO 2020130777 A1 WO2020130777 A1 WO 2020130777A1 MX 2019000133 W MX2019000133 W MX 2019000133W WO 2020130777 A1 WO2020130777 A1 WO 2020130777A1
Authority
WO
WIPO (PCT)
Prior art keywords
pistons
engine
valves
cylinder
gears
Prior art date
Application number
PCT/MX2019/000133
Other languages
English (en)
Spanish (es)
Inventor
Rodrigo PADILLA SERENO
Original Assignee
Kan Motors, S.A. De C.V.
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 Kan Motors, S.A. De C.V. filed Critical Kan Motors, S.A. De C.V.
Publication of WO2020130777A1 publication Critical patent/WO2020130777A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
    • F01B7/14—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on different main shafts
    • 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
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders

Definitions

  • the present invention relates to internal combustion engines, and more particularly concerns engines with an improved arrangement in which two pistons horizontally opposed to each other are placed within the same cylinder obtaining an efficient engine in terms of energy use. heat of combustion.
  • the pistons referred to as "primary H and secondary, have their respective crankshafts driven together by means of a transmission system that rotate together in unison.
  • this engine proposes vertical inlet / exhaust valves in the chamber but these are outside the center of the cylinder, and it has the problem that the intake / exhaust valve when opened invades the pistons movement space and can be damaged at high engine speeds, rendering it inefficient and forcing it to fund low RPM delivering low power.
  • the latter engine intends to position the cam valves vertically to the center of the combustion chamber and move them with a rocker arm system between the camshaft and valve stems.
  • This system at high engine revs could be inefficient since the pistons can hit the cam valves while they are open causing the machine to give itself due to a delay in the movement caused by the mechanism.
  • gear systems on both sides of the engine and arranged in a diagonal direction making the engine dramatically increase in weight and reducing the space to place the external components that a combustion engine has to carry in a vehicle.
  • the engine operates with a compression ratio of 16-1 that is applicable to 2 and 4-stroke gasoline and diesel, which can have complications, since in diesel that compression ratio is functional, but in gasoline the ratio of safe compression is 13.5-1, without incurring any risk of auto-ignition, since there are engines that use a higher ratio controlling the engine temperature very well
  • This invention solves the problem of heat energy losses from combustion caused by the geometry of the combustion chamber in general.
  • the described invention offers a simple structure or arrangement by placing the cam valves horizontally outside the axis of movement of the pistons and outside the cylinder in general, achieving that there is no danger of the pistons hitting the cam valves with their movement, as the engine RPM increases, also avoiding offsetting the rotation of the crankshafts to move the chamber from the intake area to the exhaust area.
  • the lecturer proposes a compression ratio of at least 12.5-1 since this ratio has a better use of the mixture of fuel and oxygen generated by the rotadonal movement of the engine.
  • Figure 1 illustrates a perspective view of the four-stroke combustion engine with the arrangement of double pistons opposite each other inside a cylinder and the cam valves positioned horizontally outside the axis of movement of the pistons and outside the cylinder in general object of the present invention.
  • Figure 2 is a side view of the four-stroke engine showing two of the pistons placed in the ignition position of the camshaft actuated cam valves.
  • Figure 3 is a top view showing the cam valve arrangement or assembly actuated by the camshaft and at least one cylinder in the position of the pistons at the center of the cylinder and away from the center of the cylinder.
  • Figures 4 and 5 are a side view and a side perspective respectively showing the compact four-stroke internal combustion engine, object of the present invention.
  • Figure 6 is a sectional view of the four-stroke engine with the output shaft connected to the transmission.
  • Figure 7 shows a top view of the four-internal combustion engine with the intake and exhaust ports.
  • Figure 8 shows a sectional view of the four-stroke internal combustion engine with the cylinder containing the two pistons opposite each other; as well as the mechanism for air intake and fuel injection.
  • a compact internal combustion engine 100 is shown, in accordance with the present invention and which is a four-stroke gasoline powered engine.
  • the motor 100 comprises a mechanical system driven by five gears 110, 121, 122, 131, 132 arranged in line, a central gear is the main gear 110 and connects directly to the drive shaft 150, a first pair of secondary gears 121, 122 are arranged on the right side and guided by the central gear 110 in which one of the gears 121 is arranged adjacent to the main gear 110, and the other gear 122 is at the final end remote from the drive shaft 150; a second pair of secondary gears 131, 132 are disposed on the left side and guided by the central gear 110 in which one of the gears 131 is arranged adjacent to the main gear 110, and the other 132 is at the final end away from the axis of transmission 150; each of these adjacent gears 121, 131 transmit the movement to the gears that are at the end ends 122, 132 of the right and left side respectively, said gears 122, 132 being at opposite ends and far from the longitudinal axis 140 of said transmission axis 150, in said gears 122,
  • the motor 100 has a system of valves 8 placed horizontally outside the axis of movement of the pistons 1, 2 and outside the cylinder in general, said valves being above and parallel to them.
  • cylinders the valves are connected to a camshaft which is a mechanism responsible for opening and closing the valves with the help of springs 9 and valve caps 10 placed on a stem of each valve 8, three of said valves 8 are in contact operating with three cams 22 of a right side camshaft 18 for each piston 1, while two other of said valves 8 are in operational contact With two cams 23 from a left side camshaft 15 for each piston 2, it can be seen that the set of three cams is not aligned with the set of two cams.
  • the motor 100 of the present invention uses at least one cylinder 180 inside which are located two pistons 1, 2 placed opposite each other, the first piston on the right side 1 and the second piston placed on the side Left 2, it can be seen that the pistons are in the compression position, creating a combustion chamber 160 at the center of the cylinder, the combustion chamber 160 is designed to operate in conditions where the mixture does not need to be stoichiometric, which which means that the quantities of fuel injected necessary are reduced by more than half obtaining a greater amount of power, with which the fuel efficiency and use of energy is greater than that of a conventional engine;
  • the ideal fuel to air ratios within a combustion chamber are 16 parts of air to one of fuel, while those required in this engine are at least 25 parts of air to one part of fuel to operate at same temperatures as a conventional engine. If necessary, a higher capacity and more efficient cooling system can be used in the engine to be able to use a greater amount of fuel and generate up to twice the power per cylinder than it would have at these low fuel ratios.
  • Figures 2 and 8 show a device for generating spark 141 below the pistons 1, 2, generally the device is a spark plug 7 capable of igniting the air-fuel mixture and is arranged directly in the center of the combustion chamber 160 ; it can also be seen that the valves 8 are above and far from the pistons 1, 2, this arrangement has the advantage that as the revolutions of the engine 100 increase, there is no danger that the pistons 1, 2 hit the valves 8 with their movement as if the other engines of the state of the art do it.
  • Figures 4, 5 and 7 show the complete design of the engine 100 of the present invention, in the figures a small dimensions machine is shown, light and capable of working with less fuel consumption; a housing 190 accommodates the arrangement of cylinders 1, 2 and valves 8, a set of packages 191 can also be seen in an upper central section of the engine to place the intake ports for the intake of the air-gasoline mixture, the exhaust ports for the exit of the burned gases due to the combustion of the air-fuel mixture; as well as fuel injectors.
  • a housing 190 accommodates the arrangement of cylinders 1, 2 and valves 8
  • a set of packages 191 can also be seen in an upper central section of the engine to place the intake ports for the intake of the air-gasoline mixture, the exhaust ports for the exit of the burned gases due to the combustion of the air-fuel mixture; as well as fuel injectors.
  • an engine with an internal volume greater than that of a conventional engine is intended. But it uses less than half the necessary fuel, generating up to 480 horsepower in a single cylinder
  • the engine 100 can be seen with at least two cylinders, one of which represents the position in the combustion stage, when the two pistons 1, 2 move to the center of the combustion chamber 160; while the second cylinder is in the air-fuel intake position, where the pistons move away from the right 3 and left 4 tank and from the center of the combustion chamber 160.
  • the four-stroke engine operating cycle of the present invention can be explained as follows:

Abstract

La présente invention concerne un moteur à combustion interne (100) compact à quatre temps qui fonctionne à base d'essence et comprend : un système mécanique actionné par cinq engrenages (100, 121, 122, 131, 132) disposés en ligne, un engrenage central (110) qui est l'engrenage principal et est relié directement avec un axe de transmission (150) ; un premier (121, 122) et un second (131, 132) engrenage servant d'engrenages secondaires disposés du côté droit guidés par l'engrenage central (110) ; en fait, les engrenages (122) et (132) qui se situent aux extrémités étant reliés à des barres (171, 172) dans lesquelles sont insérés des vilebrequins droit (3) et gauche (4) ; au moins un cylindre (180) à l'intérieur duquel se trouvent deux pistons (12) placés opposés entre eux, le premier piston (1) situé du côté droit et le second piston (2) situé du côté gauche, chaque piston étant relié aux vilebrequins du côté droit (3) et gauche (4) respectivement au moyen de bielles droite (6) et gauche (21) ; un agencement de soupapes (191, 192) placées horizontalement, au-dessus et parallèment aux cylindres (180) ; les soupapes étant reliées à des arbres à cames du côté droit (18) et gauche (15), lesquels peuvent ouvrir et fermer les soupapes pour l'entrée de ressorts (9) et un dispositif et des capuchons de soupapes (10) placés sur une tige de chaque soupape (191, 192) ; et un dispositif pour générer une étincelle (141) disposé sous les pistons (12) et situé au niveau d'un point intermédiaire entre lesdits pistons, le dispositif étant orienté directement vers le centre de la chambre de combustion (160) pour allumer le mélange d'air-combustible obtenu dans la chambre de combustion.
PCT/MX2019/000133 2018-12-19 2019-11-26 Moteur à combustion interne à quatre temps WO2020130777A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MX2018016365 2018-12-19
MXMX/A/2018/016365 2018-12-19

Publications (1)

Publication Number Publication Date
WO2020130777A1 true WO2020130777A1 (fr) 2020-06-25

Family

ID=71100283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2019/000133 WO2020130777A1 (fr) 2018-12-19 2019-11-26 Moteur à combustion interne à quatre temps

Country Status (1)

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WO (1) WO2020130777A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112112730A (zh) * 2020-09-22 2020-12-22 东风汽车集团有限公司 一种对置式燃油发电机的运动结构及燃油发动机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1091427A (en) * 1911-12-13 1914-03-24 George W Morgan Internal-combustion engine.
US1837870A (en) * 1928-12-03 1931-12-22 Johnston Tractors Company Ltd Double piston single cylinder internal combustion engine
GB420924A (en) * 1933-07-07 1934-12-11 Richard John Mccormack Improvements in or relating to internal combustion engines the cylinders of which have opposed pistons
US6039011A (en) * 1997-03-05 2000-03-21 The American University Of Baku Internal combustion engine with opposed pistons
JP2016217202A (ja) * 2015-05-18 2016-12-22 いすゞ自動車株式会社 内燃機関

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1091427A (en) * 1911-12-13 1914-03-24 George W Morgan Internal-combustion engine.
US1837870A (en) * 1928-12-03 1931-12-22 Johnston Tractors Company Ltd Double piston single cylinder internal combustion engine
GB420924A (en) * 1933-07-07 1934-12-11 Richard John Mccormack Improvements in or relating to internal combustion engines the cylinders of which have opposed pistons
US6039011A (en) * 1997-03-05 2000-03-21 The American University Of Baku Internal combustion engine with opposed pistons
JP2016217202A (ja) * 2015-05-18 2016-12-22 いすゞ自動車株式会社 内燃機関

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112112730A (zh) * 2020-09-22 2020-12-22 东风汽车集团有限公司 一种对置式燃油发电机的运动结构及燃油发动机

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