WO2000032907A1 - System for converting a rectilinear reciprocating motion into a rotary motion and vice versa - Google Patents

System for converting a rectilinear reciprocating motion into a rotary motion and vice versa Download PDF

Info

Publication number
WO2000032907A1
WO2000032907A1 PCT/ES1999/000376 ES9900376W WO0032907A1 WO 2000032907 A1 WO2000032907 A1 WO 2000032907A1 ES 9900376 W ES9900376 W ES 9900376W WO 0032907 A1 WO0032907 A1 WO 0032907A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
housings
grooves
complementary
peaks
Prior art date
Application number
PCT/ES1999/000376
Other languages
Spanish (es)
French (fr)
Inventor
Manuel Moreno Aparicio
Original Assignee
Manuel Moreno Aparicio
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 Manuel Moreno Aparicio filed Critical Manuel Moreno Aparicio
Publication of WO2000032907A1 publication Critical patent/WO2000032907A1/en
Priority to US11/124,981 priority Critical patent/US7275454B2/en

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
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/08—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders arranged oppositely relative to main shaft and of "flat" type
    • 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
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/04—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces
    • F01B3/06—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces by multi-turn helical surfaces and automatic reversal
    • F01B3/08—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces by multi-turn helical surfaces and automatic reversal the helices being arranged on the pistons
    • 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
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • F01B9/06—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion

Definitions

  • the present invention relates to a system for transforming an oscillating or alternative rectilinear movement of constant amplitude into a rotating movement with a single direction of rotation and vice versa, in accordance with the characteristics of the first claim.
  • crank-crank system is the only one widely used, which for example, for internal combustion engines is known as a crankshaft system.
  • this crankshaft system widely used in explosion engines owes its poor performance to the fact that the angles of incidence of the connecting rod on the crankshaft are suitable only in a short sector of the operating cycle .
  • inertia discs or flywheels is used, which, however, are not capable of delivering all the energy absorbed due to the "run-off" effect suffered by the crankshaft seat bearings.
  • the invention is based on the recognition that a system for movement transformation must combine the following principles: - to provide a small angle of incidence of the rotating members with respect to the linear displacement of the cylinders; reduce the number of cylinders, for example, two and achieve a full regular cycle; - reduce the amount of inertia masses; and minimize the stranding effect.
  • said system comprises: - a linearly movable hollow cylinder (2), conveniently lightened, on the lateral surface of which a first blind groove (3) with a closed or endless zigzag development with rounded peaks (3a) and valleys (3b) and straight portions (3c), as well as second straight blind grooves (4) extending parallel to the axis (2a) of said cylinder from the proximity of its extremities (2b, 2c) to the valleys (3b) of the zig-zag that forms the first groove (3), that is to say in double numbers that of the peaks (3a) existing in one end of the grooved cylinder (3); a rotating crown-shaped piece of double crown (5) for coaxially accommodating inside the grooved cylinder (2) with two approximately equal portions (5a, 5b), each of which has an end piece (6) trunk -Double conical and a neck hollow cylindrical (7), joined together by means of mounting screws (T), where a first group of housings is circumferentially
  • the zigzag groove (3) is provided so that the respective projections (A, B) of its rounded sections of peaks and valleys (3a, 3b) and its straight sections (3c) on the perpendicular to the axis (2a) of the slotted cylinder (2), are in a ratio (B / A) preferably greater than 1; the angle (o) being formed by its straight sections (3c) and with respect to the axis (2a) of the slotted cylinder (2) preferably less than 22 °.
  • the grooves (3, 4, 16) and housings (8, 9, 15) can be configured with the features according to claims 5 to 7.
  • Figure 1 schematically represents a perspective view of the system according to the invention.
  • Figure 2 also shows schematically a partial sectional view of Figure 1.
  • Figure 3 illustrates a view similar to that of Figure 2 but rotated 90 °.
  • Figure 4 shows a top plan view of a detail of the interior of the system according to Figure 1, referring to an embodiment of the zigzag groove with four peaks at each end of the grooved cylinder.
  • Figure 5 illustrates a flat development of the zigzag groove 3 for an embodiment with four peaks and four valleys at each end of the grooved cylinder, to illustrate the geometry of said zigzag groove.
  • Figures 6A to 6C show alternative embodiments for the configuration of the grooves and housings for the bearing elements.
  • the system for movement transformation comprises a grooved cylinder 2, hollow and conveniently lightened, on whose lateral surface a first groove 3 of a zig-shaped development is provided. closed or endless zag with peaks 3a and rounded valleys 3b and straight sections 3c; as well as straight grooves 4 extending parallel to the axis 2a of the grooved cylinder 2 from the proximity of its ends 2b, 2c to the valleys 3b of the zigzag groove 3, that is to say provided in double numbers than that of spikes 3a or valleys 3b provided at one end of the grooved cylinder 3.
  • the zigzag groove 3 it has at least three “valleys” 3a and three "peaks” 3b at each end of the grooved cylinder between which six straight grooves 4 run; however, an embodiment with four peaks and valleys 3a, 3b is preferred for each end of the grooved cylinder and a total of eight straight grooves 4.
  • a revolution piece 5 with portions 5a, 5b is rotatably provided, each of which is constituted by a double trunk-conical end piece 6 and a hollow cylindrical neck 7 that can be fixedly mounted each other to form an inseparable whole by means of mounting screws T.
  • a first group of housings 8, four in this case is circumferentially provided in the junction area of the necks 7 of complementary configuration of the first slot in zigzag 3 and with equal angular separation, 90 °, for a first set of rolling balls Bl as will be explained in detail below; in addition, a second group of angularly equidistant housings 9 is provided at the upper or outer base of each of the end pieces 6, for another set of bearing balls B2 as will be explained in detail also later. Additionally, only one of the end pieces 6 is provided with a tooth 6a determining a crown gear to engage with two conical pinions P whose AP shafts constitute the rotating exit of the system as will be explained later.
  • the slotted cylinder 2 is mounted to move through its pistons 12, 13 through two guide cylinders 10, 11 that configure the linear input movement.
  • crankcase 14 with crankcase covers 14a, 14b is provided for closing of the set and in each of which a third group of angularly equidistant and complementary housings 15 are provided for the straight grooves 4 to accommodate, between both, another set of rolling balls Bl. Additionally, in each of said crankcase covers 14a, 14b, a third circular groove 16 is provided, complementary to the second group of housings 9 of the outer bases of the end pieces 6, and which are intended to accommodate another set of elements. of bearing B2,.
  • the zigzag groove 3 in this case with four peaks 3a and valleys 3b for each end of the grooved cylinder 3, is provided so that the projections A and B of their rounded sections of peaks 3a and valleys 3b and their straight sections 3c on the perpendicular to the axis 2a of the slotted cylinder 2, are in a B / A ratio preferably greater than 1; the angle "" C formed by its straight sections 3c and with respect to the axis 2a of the slotted cylinder 2 being preferably less than 22 °.
  • the transformation system according to the invention to be especially effective, the following relationship must be fulfilled:
  • the grooves 3, 4 and 16 are configured with an approximately semi-circular cross-section, and the housings 8, 9 and 15 are configured almost semi-spherically.
  • the grooves 3, 4, 16 and housings 8, 9, 15 can be configured, alternatively as shown in Figures 6A to 6C.
  • the housings are configured as spherical caps somewhat smaller than 180 ° and the grooves of almost semi-circular cross-section that are slightly eccentric, that is to say slightly offset in relation to the rotation of the bearing; but also, as shown in Figure 6B, the housings can be configured as polyhedral caps also less than 180 ° and the grooves with a complementary semi-polygonal cross section also slightly eccentric or displaced in relation to the rotation of the corresponding bearing; or even as housings and slots of trapezoidal cross-section as illustrated by Figure 6C, in this case being the correspondingly truncated conical bearing element.
  • a system according to the above described has an operation according to the following.
  • the alternative linear movement of the slotted cylinder 2 is transmitted to the double crown piece 5 through the coupling formed by the zigzag slot assembly 3, housings 8 of the neck 7 and rolling balls Bl, so that said piece of double crown is driven to rotate about the axis 2a of the slotted cylinder 2 resting on the bearings B2 arranged between the second housing group 9 of the outer base of the end piece 6 and the third circular groove 16 of each crankcase cover 14a, 14b; furthermore, the slotted cylinder 2 is prevented from turning around its axis 2a thanks to the coupling between its straight grooves 4, the other set of rolling balls Bl and the third housing group 15 of the crankcase covers 14a, 14b ; the toothed portion 6a of one of the end pieces 6 of the double crown piece, draws in its rotation movement about the axis 2a of the slotted cylinder 2 to the pinions P whose AP shafts constitute the rotating exit of the transformation system.
  • flywheels or inertia discs M are provided in the AP shafts of the pinions P, but with a reduced mass compared to those required in a conventional system, due to the special geometry of the zigzag groove 3 of the slotted cylinder 2.
  • the transformation system according to the above described could be used with just variations in a so-called "reverse” mode, that is to say to transform a turning movement, now applied through the pinions P, in an alternative rectilinear movement of the slotted cylinder 2 and its associated pistons 12, 13 that could be useful for driving alternative moving machine tools, such as planers, hammers, compressors and depressors, etc., and in general in all types of mechanisms that use a crank-crank system.

Abstract

A grooved cylinder (2) is mobile alternatively into two opposite guide cylinders (10, 11) which are mounted on a housing (14). Said cylinder (2) is mounted coaxially into a double crown revolution part (5) having a toothing (6a) to rotate around the axis (2a) of the cylinder (2) on rollers (B2) coupled between a third groove (16) of the respective housing cover (14a, 14b) and the respective housing (9) of the external bases of the extremities (6) of the crown (5). The cylinder (2) and the crown (5) are coupled by means of rollers (B1) arranged between a first zigzag groove (3) of the lateral surface of the cylinder (2) and first housings (8) of the inside of the crown (5), and other rollers (B1) arranged between straight grooves (4) also on the side surface of the cylinder (3) and extending between its extremities and the bends (3a) of the first groove (3), and third housings (15) provided in the respective cover (14a, 14b).

Description

DESCRIPCIÓN DESCRIPTION
Sistema para conversión de un movimiento rectilíneo de vaivén en un movimiento rotativo y viceversa. La presente invención se encuentra referida a un sistema para transformar un movimiento rectilíneo oscilante o alternativo de amplitud constante en un movimiento giratorio con sentido de giro único y viceversa, conforme a las características de la reivindicación primera.System for converting a reciprocating reciprocating movement into a rotary movement and vice versa. The present invention relates to a system for transforming an oscillating or alternative rectilinear movement of constant amplitude into a rotating movement with a single direction of rotation and vice versa, in accordance with the characteristics of the first claim.
La transformación o conversión de un movimiento rectilíneo alternativo en uno giratorio tiene aplicación en todo tipo de máquinas y motores ya sean de accionamiento a vapor, neumático, de atracción electromagnéti- ca, combustión interna, de tracción animal, etc. El llamado sistema de biela-manivela es el único empleado de manera generalizada, que por ejemplo, para motores de combustión interna se conoce como sistema de biela- cigüeñal . Como resulta conocido por los expertos en la técnica, este sistema de biela-cigüeñal ampliamente utilizado en motores de explosión, debe su escaso rendimiento a que los ángulos de incidencia de la biela sobre el cigüeñal son adecuados únicamente en un corto sector del ciclo de funcionamiento. Para paliar este inconveniente se recurre a la utilización de discos o volantes de inercia, que, no obstante, no son capaces de entregar toda la energía absorbida debido al efecto de "encallamiento" que sufren los cojinetes de los asientos del cigüeñal.The transformation or conversion of an alternative rectilinear movement into a rotating one has application in all types of machines and engines, whether steam, pneumatic, electromagnetic attraction, internal combustion, animal traction, etc. The so-called crank-crank system is the only one widely used, which for example, for internal combustion engines is known as a crankshaft system. As is known to those skilled in the art, this crankshaft system widely used in explosion engines owes its poor performance to the fact that the angles of incidence of the connecting rod on the crankshaft are suitable only in a short sector of the operating cycle . To overcome this problem, the use of inertia discs or flywheels is used, which, however, are not capable of delivering all the energy absorbed due to the "run-off" effect suffered by the crankshaft seat bearings.
Para aumentar la regularidad del ciclo debe aumentarse el número de cilindros del motor, lo que aumenta igualmente la complejidad, la fricción, el peso, el volumen y el coste. Además, al precisar cigüeñales de grandes dimensiones, las masas de inercia aumentan también, contribuyendo negativamente al rendimiento final .To increase the regularity of the cycle, the number of engine cylinders must be increased, which also increases complexity, friction, weight, volume and cost. In addition, by requiring large crankshafts, the masses of inertia increase also, contributing negatively to the final performance.
De lo anterior resulta evidente la necesidad técnica de desarrollar un sistema para transformar un movimiento lineal alternativo en un movimiento giratorio que permita solucionar los problemas anteriormente indicados. La invención está basada en el reconocimiento de que un sistema para transformación de movimiento debe aunar los siguientes principios: - proporcionar un pequeño ángulo de incidencia de los órganos de giro respecto al desplazamiento lineal de los cilindros; reducir el número de cilindros, por ejemplo, dos y conseguir un ciclo regular completo; - reducir la cuantía de las masas de inercia; y minimizar el efecto de encallamiento. Conforme a la invención, esta tarea se consigue, de acuerdo con las características de la reivindicación 1, por cuanto dicho sistema comprende: - un cilindro de acero hueco (2) linealmente desplazable, convenientemente aligerado, en la superficie lateral del cual está prevista una primera ranura ciega (3) con un desarrollo en zig-zag cerrado o sinfín con picos (3a) y valles (3b) redondeados y porciones rectas (3c) , así como unas segundas ranuras ciegas rectas (4) que se extienden paralelamente al eje (2a) de dicho cilindro desde la proximidad de sus extremidades (2b, 2c) hasta los valles (3b) del zig-zag que forma la primera ranura (3) , es decir en doble número que el de picos (3a) existente en un extremo del cilindro ranurado (3) ; una pieza de revolución giratoria en forma de doble corona (5) para alojar coaxialmente en su interior al cilindro ranurado (2) con dos porciones aproximadamente iguales (5a, 5b) , cada una de las cuales tiene una pieza de extremidad (6) tronco-cónica doble y un cuello cilindrico hueco (7) , unidas entre sí por medio de tornillos de montaje (T) , donde en la pared interior de la zona de unión de los cuellos cilindricos (7) está circun- ferencialmente previsto con igual separación angular un primer grupo de alojamientos (8) complementarios de la citada primera ranura (3) , estando prevista en tan solo una de las piezas de extremidad tronco-cónicas (6) un dentado (6a) determinante de una corona dentada; y donde adicionalmente en la superficie de las bases exteriores de las citadas piezas de extremidad tronco-cónicas (6) está circunferencialmente previsto un segundo grupo de alojamientos (9) angularmente equidistantes; una pareja de cilindros de guía (10, 11) linealmente enfrentados en el interior de los cuales se desplazan los respectivos pistones (12, 13) de los extremos (2b, 2c) del cilindro ranurado (2) y que constituyen la entrada/salida de movimiento lineal; un cárter (14) para montaje del conjunto de cilindro ranurado/doble corona/cilindros de guía, con tapas de cárter (14a, 14b) , en cada una de las cuales está previsto un tercer grupo de alojamientos (15) angularmente equidistantes complementarios de las segundas ranuras rectas (4) , así como una tercera ranura circular (16) complementaria de los alojamientos (9) de la bases exteriores de las citadas piezas de extremidad tronco-cónicas (6) ; juegos de bolas de rodamiento (Bl) montados entre las ranuras (3, 4) del cilindro ranurado (2) y los citados primer y tercer grupo de alojamientos complemen- tarios (8, 15) , así como otro juego de bolas de rodamiento (B2) montados entre el segundo grupo de alojamientos (9) y la tercera ranura circular (16) complementarios ; y una pareja de piñones tronco-cónicos (P) que engranan en la porción dentada (6a) de la correspondiente pieza de extremidad (6) de corona dentada que constituyen la salida/entrada giratoria del sistema y que están montados sobre el cárter (14) en forma en sí conocida.From the above, the technical need to develop a system to transform an alternative linear movement into a rotating movement that allows solving the problems indicated above is evident. The invention is based on the recognition that a system for movement transformation must combine the following principles: - to provide a small angle of incidence of the rotating members with respect to the linear displacement of the cylinders; reduce the number of cylinders, for example, two and achieve a full regular cycle; - reduce the amount of inertia masses; and minimize the stranding effect. According to the invention, this task is achieved, according to the characteristics of claim 1, in that said system comprises: - a linearly movable hollow cylinder (2), conveniently lightened, on the lateral surface of which a first blind groove (3) with a closed or endless zigzag development with rounded peaks (3a) and valleys (3b) and straight portions (3c), as well as second straight blind grooves (4) extending parallel to the axis (2a) of said cylinder from the proximity of its extremities (2b, 2c) to the valleys (3b) of the zig-zag that forms the first groove (3), that is to say in double numbers that of the peaks (3a) existing in one end of the grooved cylinder (3); a rotating crown-shaped piece of double crown (5) for coaxially accommodating inside the grooved cylinder (2) with two approximately equal portions (5a, 5b), each of which has an end piece (6) trunk -Double conical and a neck hollow cylindrical (7), joined together by means of mounting screws (T), where a first group of housings is circumferentially provided with the same angular separation in the inner wall of the joint area of the cylindrical necks (7) (8) complementary to said first groove (3), being provided in only one of the pieces of trunk-conical end (6) a tooth (6a) determining a crown gear; and where additionally on the surface of the outer bases of the aforementioned trunk-conical end pieces (6) a second group of angularly equidistant housing (9) is circumferentially provided; a pair of linearly facing guide cylinders (10, 11) inside which the respective pistons (12, 13) move from the ends (2b, 2c) of the slotted cylinder (2) and which constitute the inlet / outlet linear motion; a crankcase (14) for assembly of the slotted cylinder / double crown / guide cylinder assembly, with crankcase covers (14a, 14b), in each of which a third group of angularly equidistant complementary housings (15) is provided for the second straight grooves (4), as well as a third circular groove (16) complementary to the housings (9) of the outer bases of the aforementioned trunk-conical end pieces (6); sets of ball bearings (Bl) mounted between the grooves (3, 4) of the slotted cylinder (2) and the first and third group of complementary housings (8, 15), as well as another set of ball bearings ( B2) mounted between the second group of housings (9) and the third complementary circular groove (16); and a pair of truncated-conical pinions (P) that engage in the toothed portion (6a) of the corresponding end piece (6) of toothed crown which constitute the rotating exit / entrance of the system and which are mounted on the crankcase (14) in a manner known per se.
Conforme a una característica adicional según la invención, de acuerdo con la reivindicación 2, la ranura en zig-zag (3) , está prevista de manera que las respectivas proyecciones (A, B) de sus tramos redondeados de picos y valles (3a, 3b) y sus tramos rectos (3c) sobre la perpendicular al eje (2a) del cilindro ranurado (2) , están en una relación (B/A) preferentemente mayor que 1; siendo el ángulo (o ) formado por sus tramos rectos (3c) y respecto al eje (2a) del cilindro ranurado (2) preferentemente menor de 22°.According to an additional feature according to the invention, according to claim 2, the zigzag groove (3) is provided so that the respective projections (A, B) of its rounded sections of peaks and valleys (3a, 3b) and its straight sections (3c) on the perpendicular to the axis (2a) of the slotted cylinder (2), are in a ratio (B / A) preferably greater than 1; the angle (o) being formed by its straight sections (3c) and with respect to the axis (2a) of the slotted cylinder (2) preferably less than 22 °.
Según la invención resulta, conforme a la reivindi- cación 3, una realización especialmente preferida cuando la ranura en zig-zag cerrada (3) tiene cuatro "picos"According to the invention it is, according to claim 3, an especially preferred embodiment when the closed zigzag groove (3) has four "peaks"
(3a) y cuatro "valles" (3b) en cada extremo del cilindro ranurado (2) y están correspondientemente previstas un total de ocho ranuras rectas (4) para proporcionar un funcionamiento especialmente eficaz del sistema de transformación de movimiento.(3a) and four "valleys" (3b) at each end of the grooved cylinder (2) and a total of eight straight grooves (4) are correspondingly provided to provide especially effective operation of the movement transformation system.
Conforme a una característica adicional de la invención según la reivindicación 4, resulta una realización especialmente ventajosa, cuando las ranuras (3, 4, 16) están configuradas con una sección transversal aproximadamente semi-circular, estando configurados los alojamientos (8, 9, 15) en forma casi semi-esférica.According to a further feature of the invention according to claim 4, it is an especially advantageous embodiment, when the grooves (3, 4, 16) are configured with an approximately semi-circular cross-section, the housings (8, 9, 15 being configured). ) in almost semi-spherical shape.
Para disminuir el rozamiento de las bolas de rodamiento (Bl) , las ranuras (3, 4, 16) y alojamientos (8, 9, 15) pueden configurarse con las características según las reivindicaciones 5 a 7.To reduce the friction of the rolling balls (Bl), the grooves (3, 4, 16) and housings (8, 9, 15) can be configured with the features according to claims 5 to 7.
Adicionalmente, puede resultar ventajoso que el conjunto formado por el segundo grupo de alojamientosAdditionally, it may be advantageous that the set formed by the second group of housings
(9) , la tercera ranura circular (16) y los rodamientos (B2) esté substituido por una corona de bolas conocida en SI .(9), the third circular groove (16) and the bearings (B2) are replaced by a crown of balls known in YES
Otras características y ventajas de la invención resultarán más claramente de la siguiente descripción realizada con la ayuda de los dibujos anexos relativos a un ejemplo de ejecución no limitativo y en los que:Other features and advantages of the invention will result more clearly from the following description made with the help of the accompanying drawings relating to an example of non-limiting execution and in which:
La figura 1 representa de manera esquemática una vista en perspectiva del sistema según la invención.Figure 1 schematically represents a perspective view of the system according to the invention.
La figura 2 muestra también de manera esquemática una vista en sección parcial de la figura 1. La figura 3, ilustra una vista similar a la de la figura 2 pero girada 90°.Figure 2 also shows schematically a partial sectional view of Figure 1. Figure 3 illustrates a view similar to that of Figure 2 but rotated 90 °.
La figura 4 muestra una vista en planta superior de un detalle del interior de sistema según la figura 1, referida a una realización de la ranura en zig-zag con cuatro picos en cada extremo del cilindro ranurado.Figure 4 shows a top plan view of a detail of the interior of the system according to Figure 1, referring to an embodiment of the zigzag groove with four peaks at each end of the grooved cylinder.
La figura 5, ilustra un desarrollo plano de la ranura en zig-zag 3 para una realización con cuatro picos y cuatro valles en cada extremo del cilindro ranurado, para ilustrar la geometría de dicha ranura en zig-zag. Las figuras 6A a 6C muestran realizaciones alternativas para la configuración de las ranuras y alojamientos para los elementos de rodamiento.Figure 5 illustrates a flat development of the zigzag groove 3 for an embodiment with four peaks and four valleys at each end of the grooved cylinder, to illustrate the geometry of said zigzag groove. Figures 6A to 6C show alternative embodiments for the configuration of the grooves and housings for the bearing elements.
Con referencia a las figuras puede apreciarse que el sistema para transformación de movimiento, en general designado con la referencia numérica 1, comprende un cilindro ranurado 2, hueco y convenientemente aligerado, en cuya superficie lateral está prevista una primera ranura 3 de desarrollo en zig-zag cerrada o sinfín con picos 3a y valles 3b redondeados y tramos rectos 3c; así como unas ranuras rectas 4 que se extienden paralelamente al eje 2a del cilindro ranurado 2 desde la proximidad de sus extremos 2b, 2c hasta los valles 3b de la ranura en zig-zag 3, es decir previstas en doble número que el de picos 3a o valles 3b previsto en un extremo del cilindro ranurado 3. Según la invención la ranura en zig-zag 3 tiene, al menos, tres "valles" 3a y tres "picos" 3b en cada extremo del cilindro ranurado entre los que discurren seis ranuras rectas 4; no obstante resulta preferida una realización con cuatro picos y valles 3a, 3b por cada extremos del cilindro ranurado y un total de ocho ranuras rectas 4.With reference to the figures, it can be seen that the system for movement transformation, generally designated with the numerical reference 1, comprises a grooved cylinder 2, hollow and conveniently lightened, on whose lateral surface a first groove 3 of a zig-shaped development is provided. closed or endless zag with peaks 3a and rounded valleys 3b and straight sections 3c; as well as straight grooves 4 extending parallel to the axis 2a of the grooved cylinder 2 from the proximity of its ends 2b, 2c to the valleys 3b of the zigzag groove 3, that is to say provided in double numbers than that of spikes 3a or valleys 3b provided at one end of the grooved cylinder 3. According to the invention the zigzag groove 3 it has at least three "valleys" 3a and three "peaks" 3b at each end of the grooved cylinder between which six straight grooves 4 run; however, an embodiment with four peaks and valleys 3a, 3b is preferred for each end of the grooved cylinder and a total of eight straight grooves 4.
Coaxialmente a este cilindro ranurado 7, abarcándolo, está giratoriamente prevista una pieza de revolución 5 con porciones 5a, 5b, cada una de las cuales está constituida por una pieza de extremidad tronco-cónica doble 6 y un cuello cilindrico hueco 7 que pueden montarse fijamente entre sí para formar un todo inseparable por medio de tornillos de montaje T. Como se aprecia con mayor detalle por la figura 4, en la zona de unión de los cuellos 7 está circunferencialmente previsto un primer grupo de alojamientos 8, cuatro en este caso, de configuración complementaria de la primera ranura en zigzag 3 y con igual separación angular, 90°, para un primer juego de bolas de rodamiento Bl como se explicará en detalle más adelante; además, en la base superior o externa de cada de las piezas de extremidad 6 está previsto un segundo grupo de alojamientos 9 angularmente equidistantes, para otro juego de bolas de rodamiento B2 como se explicará en detalle también más adelante. Adicionalmente, en tan solo una de las piezas de extremidad 6 está previsto un dentado 6a determinante de una corona dentada para engranar con sendos piñones cónicos P cuyos árboles AP constituyen la salida giratoria del sistema conforme se explicará más adelante. El cilindro ranurado 2 está montado para desplazarse por medio de sus pistones 12, 13 a través de sendos cilindros de guía 10, 11 que configuran el movimiento lineal de entrada.Coaxially to this grooved cylinder 7, encompassing it, a revolution piece 5 with portions 5a, 5b is rotatably provided, each of which is constituted by a double trunk-conical end piece 6 and a hollow cylindrical neck 7 that can be fixedly mounted each other to form an inseparable whole by means of mounting screws T. As can be seen in greater detail by figure 4, a first group of housings 8, four in this case, is circumferentially provided in the junction area of the necks 7 of complementary configuration of the first slot in zigzag 3 and with equal angular separation, 90 °, for a first set of rolling balls Bl as will be explained in detail below; in addition, a second group of angularly equidistant housings 9 is provided at the upper or outer base of each of the end pieces 6, for another set of bearing balls B2 as will be explained in detail also later. Additionally, only one of the end pieces 6 is provided with a tooth 6a determining a crown gear to engage with two conical pinions P whose AP shafts constitute the rotating exit of the system as will be explained later. The slotted cylinder 2 is mounted to move through its pistons 12, 13 through two guide cylinders 10, 11 that configure the linear input movement.
Para montaje de este conjunto está previsto un cárter 14 con unas tapas de cárter 14a, 14b para cierre del conjunto y en cada una de las cuales está previsto un tercer grupo de alojamientos 15 angularmente equidistantes y complementarios de las ranuras rectas 4 para alojar, entre ambos, otro juego de bolas de rodamiento Bl . Adicionalmente, en cada una de dichas tapas de cárter 14a, 14b, está prevista una tercera ranura circular 16, complementaria del segundo grupo de alojamientos 9 de las bases exteriores de las piezas de extremidad 6, y que están destinados a alojar otro juego de elementos de rodamiento B2 , .For mounting this assembly, a crankcase 14 with crankcase covers 14a, 14b is provided for closing of the set and in each of which a third group of angularly equidistant and complementary housings 15 are provided for the straight grooves 4 to accommodate, between both, another set of rolling balls Bl. Additionally, in each of said crankcase covers 14a, 14b, a third circular groove 16 is provided, complementary to the second group of housings 9 of the outer bases of the end pieces 6, and which are intended to accommodate another set of elements. of bearing B2,.
Como puede apreciarse de manera especialmente clara por la figura 5, la ranura en zig-zag 3, en este caso con cuatro picos 3a y valles 3b por cada extremo del cilindro ranurado 3 , está prevista de manera que las proyecciones A y B de sus tramos redondeados de picos 3a y valles 3b y de sus tramos rectos 3c sobre la perpendicular al eje 2a del cilindro ranurado 2, están en una relación B/A de preferencia mayor que 1; siendo el ángulo "«C formado por sus tramos rectos 3c y respecto al eje 2a del cilindro ranurado 2 de preferencia menor de 22°. Para que el sistema de transformación según la invención resulte especialmente eficaz debe cumplirse la siguiente relación:As can be seen especially clearly from Figure 5, the zigzag groove 3, in this case with four peaks 3a and valleys 3b for each end of the grooved cylinder 3, is provided so that the projections A and B of their rounded sections of peaks 3a and valleys 3b and their straight sections 3c on the perpendicular to the axis 2a of the slotted cylinder 2, are in a B / A ratio preferably greater than 1; the angle "" C formed by its straight sections 3c and with respect to the axis 2a of the slotted cylinder 2 being preferably less than 22 °. For the transformation system according to the invention to be especially effective, the following relationship must be fulfilled:
Tí.h/n.L<lYou h / n.L <l
siendo,being,
h = proyección sobre el eje 2a de la distancia entre centros entre picos 3a consecutivos en el curso del movimiento; n = número total de picos 3a de la ranura 3; y L = distancia o separación entre ranuras rectas 4.h = projection on the axis 2a of the distance between centers between consecutive peaks 3a in the course of the movement; n = total number of peaks 3a of slot 3; and L = distance or separation between straight grooves 4.
Conforme a la invención resulta una realización especialmente ventajosa, cuando las ranuras 3, 4 y 16 están configuradas con una sección transversal aproximadamente semi-circular, y los alojamientos 8, 9 y 15 están configurados en forma casi semi-esférica. No obstante, para aquellos casos en que existan altos requerimientos de rozamiento reducido, las ranuras 3, 4, 16 y alojamientos 8, 9, 15 pueden configurarse, de manera alternativa conforme se representa en las figuras 6A a 6C.According to the invention is an embodiment especially advantageous, when the grooves 3, 4 and 16 are configured with an approximately semi-circular cross-section, and the housings 8, 9 and 15 are configured almost semi-spherically. However, for those cases where there are high requirements for reduced friction, the grooves 3, 4, 16 and housings 8, 9, 15 can be configured, alternatively as shown in Figures 6A to 6C.
Como se muestra por la figura 6A, los alojamientos están configurados como casquetes esféricos algo menores de 180° y las ranuras de sección transversal casi semicircular que son ligeramente excéntricos, es decir ligeramente desplazados en relación al giro del rodamiento; pero también, como se muestra por la figura 6B, los alojamientos pueden configurarse como casquetes poliédricos también menores de 180° y las ranuras con una sección transversal también semi-poligonal complementaria y ligeramente excéntricos o desplazados en relación al giro del correspondiente rodamiento; o incluso como alojamientos y ranuras de sección transversal trapezoidal como se ilustra por la figura 6C, siendo en este caso el elemento de rodamiento correspondientemente tronco- cónico .As shown in Figure 6A, the housings are configured as spherical caps somewhat smaller than 180 ° and the grooves of almost semi-circular cross-section that are slightly eccentric, that is to say slightly offset in relation to the rotation of the bearing; but also, as shown in Figure 6B, the housings can be configured as polyhedral caps also less than 180 ° and the grooves with a complementary semi-polygonal cross section also slightly eccentric or displaced in relation to the rotation of the corresponding bearing; or even as housings and slots of trapezoidal cross-section as illustrated by Figure 6C, in this case being the correspondingly truncated conical bearing element.
Adicionalmente, puede resultar ventajoso que el conjunto formado por el segundo grupo de alojamientos 9, la tercera ranura 16 y los rodamientos B2 esté substituido por una corona de bolas (no representada) .Additionally, it may be advantageous if the assembly formed by the second group of housings 9, the third groove 16 and the bearings B2 is replaced by a crown of balls (not shown).
Tal y como será apreciado por los técnicos, un sistema conforme a lo anteriormente descrito tiene un funcionamiento de acuerdo con lo siguiente. los pistones 12, 13, montados en los extremos del cilindro del cilindro ranurado 2, y que constituyen la entrada del movimiento lineal alternativo a transformar, se desplazan por el interior de los cilindros de guía 10, 11, arrastrando en su movimiento lineal alterna- tivo a dicho cilindro ranurado 2; el movimiento lineal alternativo del cilindro ranurado 2 es transmitido a la pieza de doble corona 5 a través del acoplamiento formado por el conjunto de ranura en zig-zag 3, alojamientos 8 del cuello 7 y bolas de rodamiento Bl, de manera que dicha pieza de doble corona es impulsada para girar alrededor del eje 2a del cilindro ranurado 2 apoyada sobre los rodamientos B2 dispuestos entre el segundo grupo de alojamientos 9 de la base exterior de la pieza de extremidad 6 y la tercera ranura circular 16 de cada tapa de cárter 14a, 14b; además, el cilindro ranurado 2 tiene impedido un movimiento de giro alrededor de su eje 2a gracias al acoplamiento existente entre sus ranuras rectas 4, el otro juego de bolas de rodamiento Bl y el tercer grupo de alojamientos 15 de las tapas de cárter 14a, 14b; la porción dentada 6a de una de las piezas de extremidad 6 de la pieza de doble corona, arrastra en su movimiento de giro alrededor del eje 2a del cilindro ranurado 2 a los piñones P cuyos árboles AP constituyen la salida giratoria del sistema de transformación.As will be appreciated by the technicians, a system according to the above described has an operation according to the following. the pistons 12, 13, mounted at the ends of the cylinder of the slotted cylinder 2, and which constitute the entrance of the alternative linear movement to be transformed, move inside the guide cylinders 10, 11, dragging in their alternating linear movement. tive to said slotted cylinder 2; the alternative linear movement of the slotted cylinder 2 is transmitted to the double crown piece 5 through the coupling formed by the zigzag slot assembly 3, housings 8 of the neck 7 and rolling balls Bl, so that said piece of double crown is driven to rotate about the axis 2a of the slotted cylinder 2 resting on the bearings B2 arranged between the second housing group 9 of the outer base of the end piece 6 and the third circular groove 16 of each crankcase cover 14a, 14b; furthermore, the slotted cylinder 2 is prevented from turning around its axis 2a thanks to the coupling between its straight grooves 4, the other set of rolling balls Bl and the third housing group 15 of the crankcase covers 14a, 14b ; the toothed portion 6a of one of the end pieces 6 of the double crown piece, draws in its rotation movement about the axis 2a of the slotted cylinder 2 to the pinions P whose AP shafts constitute the rotating exit of the transformation system.
Conforme a la invención, como sea requerido por los parámetros del sistema, en los árboles AP de los piñones P están previstos volantes o discos de inercia M, pero con una masa reducida en comparación a los precisos en un sistema convencional, debido a la especial geometría de la ranura en zig-zag 3 del cilindro ranurado 2.According to the invention, as required by the system parameters, flywheels or inertia discs M are provided in the AP shafts of the pinions P, but with a reduced mass compared to those required in a conventional system, due to the special geometry of the zigzag groove 3 of the slotted cylinder 2.
Como será apreciado por los técnicos, la fuerza ejercida por las ranuras en zig-zag 3 a través de las bolas de rodamiento Bl, es aplicada a la pieza giratoria de doble corona 5 bajo un ángulo constante, salvo en los puntos de transición de los picos 3a, de manera que es aplicada uniforme y eficazmente en la casi totalidad de la carrera de los pistones proporcionando un curso regular y uniforme. Un sistema conforme a lo anteriormente revelado tiene aplicación en todo tipo de maquinaria y motores con independencia del tipo de accionamiento ya sea por vapor, neumático, de explosión, etc. Como será apreciado por los técnicos, el sistema de transformación conforme a lo anteriormente descrito, podría ser utilizado con apenas variaciones en un llamado modo "inverso", es decir para transformar un movimiento de giro, aplicado ahora a través de los piñones P, en un movimiento rectilíneo alternativo del cilindro ranurado 2 y de sus pistones 12, 13 asociados que podría resultar de utilidad para accionamiento de máquinas herramientas de movimiento alternativo, tal como cepilladoras, martillos, compresores y depresores, etc., y en general en todo tipo de mecanismos que utilicen un sistema de biela-manivela.As will be appreciated by the technicians, the force exerted by the zigzag grooves 3 through the rolling balls Bl, is applied to the double crown rotating part 5 at a constant angle, except at the transition points of the peaks 3a, so that it is applied uniformly and effectively in almost the entire piston stroke providing a regular and uniform course. A system according to the previously disclosed has application in all types of machinery and engines irrespective of the type of drive whether steam, pneumatic, explosion, etc. As will be appreciated by the technicians, the transformation system according to the above described, could be used with just variations in a so-called "reverse" mode, that is to say to transform a turning movement, now applied through the pinions P, in an alternative rectilinear movement of the slotted cylinder 2 and its associated pistons 12, 13 that could be useful for driving alternative moving machine tools, such as planers, hammers, compressors and depressors, etc., and in general in all types of mechanisms that use a crank-crank system.
Suficientemente que ha sido descrito el objeto de la invención, solamente resta señalar que las realizaciones derivadas de cambios de forma, dimensiones y similares, así como las resultantes de una aplicación de rutina de lo anteriormente revelado deberán considerarse incluidas en su ámbito, de manera que la invención tan solo estará limitada por el alcance de las siguientes reivindicaciones . Sufficiently, the object of the invention has been described, it only remains to be noted that the embodiments derived from changes in shape, dimensions and the like, as well as those resulting from a routine application of the above disclosed should be considered included in its scope, so that The invention will only be limited by the scope of the following claims.

Claims

REIVINDICACIONES
1. Sistema para conversión de un movimiento rectilíneo de vaivén en un movimiento rotativo y viceversa, con una entrada/salida de movimiento lineal a través de pistones (12) y una salida/entrada giratoria constituida por árboles (AP) de engranajes o piñones (P) , caracterizado, por cuanto comprende: un cilindro de acero hueco (2) linealmente desplazable, convenientemente aligerado, en la superficie lateral del cual está prevista una primera ranura ciega1. System for converting a reciprocating reciprocating movement into a rotary movement and vice versa, with a linear movement inlet / outlet through pistons (12) and a rotating outlet / inlet consisting of gear shafts (AP) of gears or pinions ( P), characterized in that it comprises: a linearly movable hollow steel cylinder (2), conveniently lightened, on the lateral surface of which a first blind groove is provided
(3) con un desarrollo en zig-zag cerrado o sinfín con picos (3a) y valles (3b) redondeados y porciones rectas(3) with a closed or endless zigzag development with rounded peaks (3a) and rounded valleys (3b) and straight portions
(3c) , así como unas segundas ranuras ciegas rectas (4) que se extienden paralelamente al eje (2a) de dicho cilindro desde la proximidad de sus extremidades (2b, 2c) hasta los valles (3b) del zig-zag que forma la primera ranura (3) , es decir en doble número que el de picos (3a) o valles (3b) de un extremo del cilindro ranurado (3) ; - una pieza de revolución giratoria en forma de doble corona (5) para alojar coaxialmente en su interior al cilindro ranurado (2) con dos porciones aproximadamente iguales (5a, 5b) , cada una de las cuales tiene una pieza de extremidad (6) tronco-cónica doble y un cuello cilindrico hueco (7) , unidas entre sí por medio de tornillos de montaje (T) , donde en la pared interior de la zona de unión de los cuellos cilindricos (7) está circun- ferencialmente previsto, con igual separación angular, un primer grupo de alojamientos (8) complementarios de la citada primera ranura (3) , estando prevista en tan solo una de las piezas de extremidad tronco-cónicas (6) un dentado (6a) determinante de una corona dentada; y donde adicionalmente en la superficie de las bases exteriores de las citadas piezas de extremidad tronco-cónicas (6) está circunferencialmente previsto un segundo grupo de alojamientos (9) angularmente equidistantes; una pareja de cilindros de guía (10, 11) linealmente enfrentados en el interior de los cuales se desplazan los respectivos pistones (12, 13) de los extremos (2b, 2c) del cilindro ranurado (2) y que constituyen la entrada/salida de movimiento lineal; un cárter (14) para montaje del conjunto de cilindro ranurado/doble-corona/cilindros de guía, con tapas de cárter (14a, 14b) , en cada una de las cuales está previsto un tercer grupo de alojamientos (15) angularmente equidistantes complementarios de las segundas ranuras rectas (4) , así como una tercera ranura circular (16) complementaria de los alojamientos (9) de la bases exteriores de las citadas piezas de extremidad tronco-cónicas (6) ; juegos de bolas de rodamiento (Bl) montados entre las ranuras (3, 4) del cilindro ranurado (2) y los citados primer y tercer grupo de alojamientos complementarios (8, 15), así como otros juegos de bolas de rodamiento (B2) montados entre el citado segundo grupo de alojamientos (9) y la citada tercera ranura circular (16) complementarios; y una pareja de piñones tronco-cónicos (P) que engranan en la porción dentada (6a) de la correspondiente pieza de extremidad (6) de corona dentada que constituyen la salida/entrada giratoria del sistema y que están montados sobre el cárter (14) en forma en sí conocida.(3c), as well as second straight blind grooves (4) that extend parallel to the axis (2a) of said cylinder from the proximity of its extremities (2b, 2c) to the valleys (3b) of the zig-zag that forms the first groove (3), that is to say in double number that of peaks (3a) or valleys (3b) of one end of the grooved cylinder (3); - a rotating part in the form of a double crown (5) for coaxially housing the grooved cylinder (2) with two approximately equal portions (5a, 5b), each of which has an end piece (6) double conical trunk and a hollow cylindrical neck (7), joined together by means of mounting screws (T), where in the inner wall of the joint area of the cylindrical necks (7) it is circumferentially provided, with equal angular separation, a first group of housings (8) complementary to said first groove (3), being provided in only one of the pieces of trunk-conical end (6) a tooth (6a) determining a crown gear; and where additionally on the surface of the outer bases of the aforementioned trunk-conical end pieces (6) a second group of circumferentially provided accommodation (9) angularly equidistant; a pair of linearly facing guide cylinders (10, 11) inside which the respective pistons (12, 13) move from the ends (2b, 2c) of the slotted cylinder (2) and which constitute the inlet / outlet linear motion; a crankcase (14) for mounting the slotted / double-crown / guide cylinder assembly, with crankcase covers (14a, 14b), in each of which a third group of angularly equidistant complementary housings (15) is provided of the second straight grooves (4), as well as a third circular groove (16) complementary to the housings (9) of the outer bases of the aforementioned trunk-conical end pieces (6); sets of ball bearings (Bl) mounted between the grooves (3, 4) of the slotted cylinder (2) and the first and third group of complementary housings (8, 15), as well as other sets of ball bearings (B2) mounted between said second group of housings (9) and said third complementary circular groove (16); and a pair of truncated-conical pinions (P) that engage in the toothed portion (6a) of the corresponding end piece (6) of toothed crown which constitute the rotating exit / entrance of the system and which are mounted on the crankcase (14 ) in a manner known per se.
2.- Sistema de acuerdo con la reivindicación 1, caracterizado, por cuanto la ranura en zig-zag (3) , está prevista de manera que las proyecciones (A, B) de sus tramos redondeados de picos y valles (3a, 3b) y sus tramos rectos (3c) sobre la perpendicular al eje (2a) del cilindro ranurado (2) , están en una relación (B/A) de preferencia mayor que 1; siendo el ángulo (oζ ) formado por sus tramos rectos (3c) respecto al eje (2a) del cilindro ranurado (2) preferentemente menor de 22°, donde se cumple la siguiente relación2. System according to claim 1, characterized in that the zigzag groove (3) is provided so that the projections (A, B) of its rounded sections of peaks and valleys (3a, 3b) and its straight sections (3c) on the perpendicular to the axis (2a) of the grooved cylinder (2), are in a ratio (B / A) preferably greater than 1; being the angle (oζ) formed by its straight sections (3c) with respect to the axis (2a) of the slotted cylinder (2) preferably less than 22 °, where the following relationship is fulfilled
Tí. h/n.L<lYou. h / n.L <l
donde,where,
h = proyección sobre el eje (2a) del cilindro ranuradoh = projection on the axis (2a) of the slotted cylinder
(3) de la distancia entre centros de dos picos (3a) consecutivos en curso del movimiento; n = número total de picos 3a de la ranura 3; y(3) of the distance between centers of two consecutive peaks (3a) in the course of the movement; n = total number of peaks 3a of slot 3; Y
L = distancia o separación entre ranuras rectas 4.L = distance or separation between straight grooves 4.
3.- Sistema conforme a las reivindicaciones 1 y 2, caracterizado por cuanto la ranura en zig-zag cerrada (3) tiene, al menos, tres "picos" (3a) y tres "valles" (3b) por cada extremo del cilindro ranurado y están correspondientemente previstas un total de seis ranuras rectas3. System according to claims 1 and 2, characterized in that the closed zigzag slot (3) has at least three "peaks" (3a) and three "valleys" (3b) at each end of the cylinder grooved and a total of six straight slots are correspondingly provided
(4) . 4.- Sistema conforme a anteriores reivindicaciones, caracterizado porque las ranuras (3, (4) . 4. System according to previous claims, characterized in that the grooves (3,
4, 16) están configuradas con una sección transversal aproximadamente semi-circular, mientras que los alojamientos (8, 9, 15) lo están con una forma casi semi-esferica. 4, 16) are configured with an approximately semi-circular cross-section, while the housings (8, 9, 15) are with an almost semi-spherical shape.
5.- Sistema de acuerdo con las reivindicaciones 1, 2 o 3, caracterizado por cuanto los alojamientos (8, 9, 15) , están configurados como casquetes esféricos menores de 180°, mientras que las ranuras (3, 4, 16) tienen configuraciones complementarias de sección transversal casi semi-circular que están mutuamente desplazados en una pequeña medida en relación al giro del correspondiente rodamiento.5. System according to claims 1, 2 or 3, characterized in that the housings (8, 9, 15), are configured as spherical caps less than 180 °, while the grooves (3, 4, 16) have complementary configurations of almost semi-circular cross-section that are mutually displaced to a small extent in relation to the rotation of the corresponding bearing.
6.- Sistema conforme a las reivindicaciones 1, 2 o 3, caracterizado por cuanto las ranuras (3, 4, 16) tienen una sección transversal semi-poligonal , estando configu- rados los alojamientos (8, 9, 15) complementariamente como casquetes poliédricos, menores de 180°, que están mutuamente desplazados en una pequeña medida en relación al giro del correspondiente rodamiento. 6. System according to claims 1, 2 or 3, characterized in that the grooves (3, 4, 16) have a semi-polygonal cross-section, being configured The housings (8, 9, 15) are complementary as polyhedral caps, smaller than 180 °, which are mutually displaced to a small extent in relation to the rotation of the corresponding bearing.
7.- Sistema de acuerdo con las reivindicaciones 1, 2 o 3, caracterizado por cuanto la sección transversal de las ranuras (3, 4, 16) y de los alojamientos (8, 9, 15) es esencialmente trapezoidal para alojar rodamientos (Bl, B2) correspondientemente tronco-cónicos. 7. System according to claims 1, 2 or 3, characterized in that the cross-section of the grooves (3, 4, 16) and of the housings (8, 9, 15) is essentially trapezoidal to accommodate bearings (Bl , B2) correspondingly trunk-conical.
8.- Sistema conforme a las anteriores reivindicaciones caracterizado, por cuanto están previstas coronas de bolas conocidas en sí, para substituir al conjunto formado por el segundo grupo de alojamientos (9) , la tercera ranura circular y los segundos juegos de roda- mientos (B2) . 8. System according to the preceding claims, characterized in that ball crowns known per se are provided, to replace the assembly formed by the second group of housings (9), the third circular groove and the second sets of bearings ( B2).
PCT/ES1999/000376 1998-11-30 1999-11-23 System for converting a rectilinear reciprocating motion into a rotary motion and vice versa WO2000032907A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/124,981 US7275454B2 (en) 1998-11-30 2005-05-09 System for the conversion of a rectilinear swaying motion into a rotating motion and vice versa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9802508A ES2168885B1 (en) 1998-11-30 1998-11-30 VAIVEN RECTILINE MOVEMENT CONVERSION SYSTEM IN ROTATING AND VICEVERSA MOVEMENT.
ESP9802508 1998-11-30

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US09856931 A-371-Of-International 1999-11-23
US10/287,749 Continuation-In-Part US20030056611A1 (en) 1998-11-30 2002-11-04 System for the conversion of a rectilinear swaying motion into a rotating and vice versa

Publications (1)

Publication Number Publication Date
WO2000032907A1 true WO2000032907A1 (en) 2000-06-08

Family

ID=8305958

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1999/000376 WO2000032907A1 (en) 1998-11-30 1999-11-23 System for converting a rectilinear reciprocating motion into a rotary motion and vice versa

Country Status (2)

Country Link
ES (2) ES2168885B1 (en)
WO (1) WO2000032907A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508253A (en) * 1946-09-26 1950-05-16 Dean C Haggardt Compressor unit
US3388603A (en) * 1965-12-06 1968-06-18 Harry S. Clark Engine
DE2206458A1 (en) * 1972-02-11 1973-08-16 Volkswagenwerk Ag DRIVE MACHINE, IN PARTICULAR COMBUSTION MACHINE WITH CRANKSHAFT-FREE POWER TRANSMISSION
FR2264187A1 (en) * 1974-03-15 1975-10-10 Hazera Paul Reciprocating IC engine without crankshaft - drives output shaft through gears meshing with teeth on helical cam
EP0581975A1 (en) * 1992-07-21 1994-02-09 Fritz Reupsch Internal combustion engine with pistons rotating about their axes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20011259U1 (en) * 2000-06-27 2000-10-12 Naichtout Dmitri Reciprocating machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508253A (en) * 1946-09-26 1950-05-16 Dean C Haggardt Compressor unit
US3388603A (en) * 1965-12-06 1968-06-18 Harry S. Clark Engine
DE2206458A1 (en) * 1972-02-11 1973-08-16 Volkswagenwerk Ag DRIVE MACHINE, IN PARTICULAR COMBUSTION MACHINE WITH CRANKSHAFT-FREE POWER TRANSMISSION
FR2264187A1 (en) * 1974-03-15 1975-10-10 Hazera Paul Reciprocating IC engine without crankshaft - drives output shaft through gears meshing with teeth on helical cam
EP0581975A1 (en) * 1992-07-21 1994-02-09 Fritz Reupsch Internal combustion engine with pistons rotating about their axes

Also Published As

Publication number Publication date
ES2207353A1 (en) 2004-05-16
ES2168885A1 (en) 2002-06-16
ES2207353B1 (en) 2005-04-01
ES2168885B1 (en) 2003-04-01

Similar Documents

Publication Publication Date Title
EP2257700B1 (en) A reciprocating piston mechanism and a method of increasing internal egr in an internal combustion engine
US5503038A (en) Free floating multiple eccentric device
US4300874A (en) Rotary machine with lenticular rotor and a circular guide member therefor
US5606938A (en) Tri-lobed cam engine
US20100130897A1 (en) Massaging device
US7275454B2 (en) System for the conversion of a rectilinear swaying motion into a rotating motion and vice versa
US20150247452A1 (en) Planetary Crank Gear Design for Internal Combustion Engines
US5297448A (en) Crank mechanism
US5212996A (en) Crank drive with planetary pivot pin, favourably for piston power engines and machine tools
EP0834007B1 (en) Tri-lobed cam engine
WO2006102314A2 (en) Hypocycloid device
US3760777A (en) Rotary-piston engine
US6213064B1 (en) Double throw engine
US6435145B1 (en) Internal combustion engine with drive shaft propelled by sliding motion
WO2000032907A1 (en) System for converting a rectilinear reciprocating motion into a rotary motion and vice versa
US4185508A (en) Motion change transmission
US4128084A (en) Rotary engine
US20080276902A1 (en) Rotary Piston Machine Comprising Two Piston Mounts Arranged on an Axle
EP0900343B1 (en) Piston mechanism
US4799870A (en) Fluid power transfer device
US20190186354A1 (en) Internal Combustion Engine
EP1484474B1 (en) Endothermic engine with rotating pistons
KR100880916B1 (en) Reciprocating and Rotating Type Power Transforming Apparatus
RU2002121212A (en) Rotary piston engine
RU2018039C1 (en) Piston machine balancer

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 09856931

Country of ref document: US

122 Ep: pct application non-entry in european phase