WO1999016998A1 - Moteur a combustion interne a rotor oscillant - Google Patents

Moteur a combustion interne a rotor oscillant Download PDF

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Publication number
WO1999016998A1
WO1999016998A1 PCT/ES1998/000265 ES9800265W WO9916998A1 WO 1999016998 A1 WO1999016998 A1 WO 1999016998A1 ES 9800265 W ES9800265 W ES 9800265W WO 9916998 A1 WO9916998 A1 WO 9916998A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
engine
oscillating
crankshaft
connecting rod
Prior art date
Application number
PCT/ES1998/000265
Other languages
English (en)
Spanish (es)
Inventor
Felix Alvaro Fernandez
Original Assignee
Universidad Politecnica De Madrid
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 Universidad Politecnica De Madrid filed Critical Universidad Politecnica De Madrid
Publication of WO1999016998A1 publication Critical patent/WO1999016998A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C9/00—Oscillating-piston machines or engines
    • F01C9/002—Oscillating-piston machines or engines the piston oscillating around a fixed axis
    • 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
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines

Definitions

  • emblism engine is based on the work of the active fluid, consisting of air, fuel and waste gases, which evolves cyclically by carrying out the thermodynamic processes of admission, compression, combustion, expansion and exhaust, which take place inside the enclosure which defines the position of the piston inside each cylinder. Due to the acceptable balanced and cyclic regularity that it presents, the most used type of four-stroke alternative engine is the in-line four-cylinder engine, in which the piston displacements are offset by equal values over two turns of the crankshaft .
  • the pistons actuate the respective connecting rods acting on the crankshaft, resulting in the fact that the operating cycles of each cylinder are identical, equally out of phase in half a turn of the crankshaft, and their effects are added at each moment to give a useful torque of the gases.
  • Wankel engines are also well known in today's technology, of which only the so-called “Wankel engines” have some practical interest.
  • the thermodynamic cycle of a Wankel engine is similar to that of a classic alternative engine, but its mechanical configuration is radically different.
  • a rotor of suitable lobular geometry enclosed in a crankcase also appropriately, and among them is the active fluid.
  • the relative movement of the rotor with respect to the crankcase modifies the available volume of the active fluid, so that its thermodynamic cycle is similar to that of the alternative engine.
  • the mechanical configuration of the Wankel engine allows for relative improvements in the power / weight ratio, but instead has some drawbacks. The most relevant inconveniences are:
  • crankcase distortion problems due to asymmetry in the peripheral distribution of temperatures on the inner surface of the crankcase.
  • the Oscillating Rotor Engine object of the present Patent Registration Application, is conceptually a hybrid mechanical solution between the four-stroke alternative engine, and the Wankel type engine.
  • the concept of this engine seeks to improve the performance of the types mentioned, minimizing the inconvenience of both.
  • Compared to the conventional alternative engine it has a significantly lower number of components, thus drastically reducing its weight and potential cost.
  • In front of the Wankel engine it has the advantage of not needing the crown components
  • the invention consists of a four-stroke internal combustion engine, in which there are variable volume enclosures, within which the active fluid operates, similar to how it acts in the cylinders of a conventional four-wheel internal combustion engine times
  • this invention is applicable to any even number of enclosures, which function as cylinders in the alternative engine, and since the most extended alternative use engine is that of four cylinders in line, for the purpose of explaining the idea the case of the four-enclosure motor will be specifically described.
  • Figure 1 represents a section through a plane perpendicular to the axis of rotation thereof.
  • the rotor "R” Concentrically with the axis of the cylindrical bore, the rotor "R" is mounted, whose geometric configuration is that of a circular cylinder provided with two longitudinally arranged equal fins and symmetrically positioned said rotor with its fins conveniently fits inside the cited cylindrical bore , being able to rotate oscillating within the planned cylindrical sector
  • Figure 2 represents a section through the vertical plane of symmetry of the cylindrical bore, which presents the motor configuration in the direction of the rotor axis "R".
  • the anterior and posterior cylindrical closure bases are solved by means of two flat support pieces "S” and “T”, which reinforce the union of the half-pieces "A” and “B” with cylinder head parts "C” and “D” by threaded bolts as shown in the figure.
  • This joint in addition to closing the cylindrical bore, provides a good structural configuration of the assembly, which makes it susceptible to withstand the high pressures that the active fluid will present in operation.
  • Said support pieces “S” and “T” also provide housing for the front and rear bearings of the rotor shaft supports, as shown in the figure. Additionally, said “S” and “T” parts extend to accommodate the front and rear bearings of the power shaft or crankshaft of the "E" engine, represented in the
  • the axis of the rotor "R”, at its rear end carries an arm “M”, whose axis is positioned perpendicular to the plane of symmetry of the fins, and the end of said arm has a bolt on which articulates a connecting rod “N ".
  • the power shaft or crankshaft “E”, which is parallel to the axis of rotation of the rotor "R”, is positioned in a convenient situation, and at its rear end it has a crank arm “P”, also arranged with its articulating pin with the other end of the connecting rod "N”.
  • the amplitude of the elongation of the angular movement of the rotor corresponds to half a turn of the crankshaft, and marks the extreme positions of the rotor fins, which are equivalent to the upper and lower dead spots, (PMS and PMI respectively), referents to the comparable alternative engine. Said extreme positions are represented in imaginary line in figure 1.
  • the angle " ⁇ m” is a function of the position of the axis of the crankshaft “E” with respect to the axis of the rotor, of the radii of the arms "M” and “P”, and of the length of the connecting rod "N”, by which can be selected for a suitable value for said angle, adopting values suitable for the dimensions mentioned.
  • (P) is the instantaneous pressure in the enclosure
  • (d ⁇ ) is the elementary angle rotated by the rotor.
  • (P) acts on the fin's face in the same direction as (d ⁇ ) the elementary work is positive, (motor work).
  • the elementary work is negative, (hard work).
  • SHEET D I ⁇ N R of the gases on the power axis The diagram of this pair of gases is very similar to that resulting in a conventional four-cylinder alternative engine at the exit of its crankshaft. Therefore, the cyclic regularity of the oscillating rotor motor will be very similar to that of the alternative motor. However, from the point of view of the maximum loads that the components of the mechanism have to support, there are essential differences between both types of motors, which clearly favor the Oscillating Rotor Motor.
  • each fin divides the cylindrical sector in which it moves into two enclosures, so that the total number of enclosures that a particular Oscillating Rotor Motor would have, would be twice the number of fins of its rotor. Since, each enclosure will act in a similar way to how a comparable alternative engine cylinder acts, the described solution would be equally applicable to any type of Oscillating Rotor Motor, according to the number of rotor fins selected in each case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
  • Hydraulic Motors (AREA)

Abstract

Cette nouvelle conception de moteur à combustion interne remplace de manière avantageuse les moteurs classiques à piston actuels car, tout en présentant des performances de service et de puissance identiques, cette conception permet de réduire considérablement le poids et le coût du moteur. Le moteur à rotor oscillant est conçu pour remplacer tout moteur à mouvement alternatif présentant un nombre pair de cylindres et indépendamment de l'usage auquel le moteur est destiné. Les transformations thermodynamiques et les échanges énergétiques qui sont assurés par ce type de moteur sont pratiquement identiques à ceux du moteur à piston doté d'une même puissance. Toutefois, sa composition et son fonctionnement mécanique sont très différents. Le moteur à rotor oscillant est constitué d'un carter résistant dont l'intérieur est pourvu d'un rotor à pales, doté d'un mouvement angulaire d'oscillation à travers un mécanisme de levier-bielle-manivelle, accouplé à l'arbre de transmission ou au vilebrequin. Les pales du rotor divisent le vide que forme le carter dans des espaces fermés déformables lesquels se comportent comme des cylindres d'un moteur à mouvement alternatif classique, les faces des pales fonctionnant de la même manière que les surfaces des pistons dans le moteur à mouvement alternatif.
PCT/ES1998/000265 1997-09-26 1998-09-25 Moteur a combustion interne a rotor oscillant WO1999016998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9702023A ES2137122B1 (es) 1997-09-26 1997-09-26 Motor de combustion interna de rotor oscilante.
ESP9702023 1997-09-26

Publications (1)

Publication Number Publication Date
WO1999016998A1 true WO1999016998A1 (fr) 1999-04-08

Family

ID=8300717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1998/000265 WO1999016998A1 (fr) 1997-09-26 1998-09-25 Moteur a combustion interne a rotor oscillant

Country Status (2)

Country Link
ES (1) ES2137122B1 (fr)
WO (1) WO1999016998A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100432375C (zh) * 2007-03-03 2008-11-12 谈诚 一种以最佳尺寸比例设计的摆动活塞机械
CN102953806A (zh) * 2012-11-19 2013-03-06 黎澄生 X-可变压缩比发动机
CN104153876A (zh) * 2014-07-07 2014-11-19 杨思强 一种发动机
RU2659602C1 (ru) * 2017-06-07 2018-07-03 федеральное государственное бюджетное образовательное учреждение высшего образования "Иркутский национальный исследовательский технический университет" (ФГБОУ ВО "ИРНИТУ") Лопастной двигатель внутреннего сгорания
RU213237U1 (ru) * 2021-05-28 2022-08-31 Вадим Вениаминович Клементьев Лопастной двигатель

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1584473A (fr) * 1967-02-20 1969-12-26
FR2297323A1 (fr) * 1975-01-08 1976-08-06 Grossetete Roger Perfectionnements apportes aux machines volumetriques du genre a palettes, notamment moteurs a combustion interne
DE3127498A1 (de) * 1981-07-11 1983-04-14 Friedrich 4320 Hattingen Twachtmann Vierkammer - viertakt - schwingkolbenmotor
FR2539814A1 (fr) * 1983-01-21 1984-07-27 Dorchies Alain Machine a piston oscillant utilisable comme moteur a combustion interne a 2 ou 4 temps, comme dispositif de transmission a fluide, pompe, compresseur ou generateur electrique
US4599976A (en) * 1983-12-13 1986-07-15 Societe A Responsabilite Limitee Datome Reciprocating rotary piston thermal engine with a spherical chamber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1584473A (fr) * 1967-02-20 1969-12-26
FR2297323A1 (fr) * 1975-01-08 1976-08-06 Grossetete Roger Perfectionnements apportes aux machines volumetriques du genre a palettes, notamment moteurs a combustion interne
DE3127498A1 (de) * 1981-07-11 1983-04-14 Friedrich 4320 Hattingen Twachtmann Vierkammer - viertakt - schwingkolbenmotor
FR2539814A1 (fr) * 1983-01-21 1984-07-27 Dorchies Alain Machine a piston oscillant utilisable comme moteur a combustion interne a 2 ou 4 temps, comme dispositif de transmission a fluide, pompe, compresseur ou generateur electrique
US4599976A (en) * 1983-12-13 1986-07-15 Societe A Responsabilite Limitee Datome Reciprocating rotary piston thermal engine with a spherical chamber

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100432375C (zh) * 2007-03-03 2008-11-12 谈诚 一种以最佳尺寸比例设计的摆动活塞机械
CN102953806A (zh) * 2012-11-19 2013-03-06 黎澄生 X-可变压缩比发动机
CN104153876A (zh) * 2014-07-07 2014-11-19 杨思强 一种发动机
CN104153876B (zh) * 2014-07-07 2016-02-24 杨思强 一种发动机
RU2659602C1 (ru) * 2017-06-07 2018-07-03 федеральное государственное бюджетное образовательное учреждение высшего образования "Иркутский национальный исследовательский технический университет" (ФГБОУ ВО "ИРНИТУ") Лопастной двигатель внутреннего сгорания
RU213237U1 (ru) * 2021-05-28 2022-08-31 Вадим Вениаминович Клементьев Лопастной двигатель

Also Published As

Publication number Publication date
ES2137122B1 (es) 2000-08-01
ES2137122A1 (es) 1999-12-01

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