ITPE990016A1

ITPE990016A1 - INTERNAL COMBUSTION "TWO STROKE" ENGINE, WITH CYLINDER AND AUXILIARY PISTON

Info

Publication number: ITPE990016A1
Application number: IT1999PE000016A
Authority: IT
Inventors: Dominicis Fausto De; Mario Giansante
Original assignee: Dominicis Fausto De; Mario Giansante
Priority date: 1999-08-02
Filing date: 1999-08-02
Publication date: 2001-02-02
Also published as: ITPE990016A0

Description

STATO DELLA TECNICA STATE OF THE TECHNIQUE

Attualmente l’alimentazione del motore a combustione interna del tipo a “due tempi”, avviene attraverso l’aspirazione della miscela nel carter pompa, posto al di sotto del punto morto inferiore del pistone, e nel momento in cui il pistone compie la sua fase discendente, attraverso i cd travasi quanto preventivamente aspirato nel carter, viene travasato all’interno del cilindro che successivamente genererà la combustione. Currently, the internal combustion engine of the "two-stroke" type is fed through the intake of the mixture in the pump casing, located below the lower dead center of the piston, and when the piston completes its phase descending, through the so-called decanting, what was previously sucked into the crankcase, is decanted into the cylinder which will subsequently generate combustion.

Il trovato oggetto della presente domanda, si prefige lo scopo di: The invention which is the subject of the present application has the purpose of:

• Permettere al motore a due tempi di essere alimentato con vari tipi di combustibili • Per il suo funzionamento esso non necessita che il combustibile sia miscelato • Allowing the two-stroke engine to be fueled with various types of fuels • For its operation it does not require the fuel to be mixed

• Ottimizzare il riempimento della camera di combustione • Optimize the filling of the combustion chamber

DESCRIZIONE DESCRIPTION

Il motore a due tempi oggetto della presente domanda di brevetto, è composto da due cilindri, uno attivo ed uno ausiliario, quest’ultimo, indispensabile per il funzionamento del motore stesso in quanto ha il compito di alimentarlo. The two-stroke engine object of this patent application is composed of two cylinders, one active and one auxiliary, the latter, which is essential for the operation of the engine itself as it has the task of powering it.

Il funzionamento del presente morore combustione interna del tipo a “due tempi” avviene, attraverso un migliore riempimento della camera di combustione, grazie all’eliminazione (come invece avviene nel due tempi classico) dell’aspirazione e travaso della miscela per mezzo del carter pompa. The functioning of the present "two-stroke" type internal combustion moror occurs through a better filling of the combustion chamber, thanks to the elimination (as instead occurs in the classic two-stroke) of the intake and transfer of the mixture by means of the pump casing .

Il presente motore, si caratterizza perché in esso il riempimento della camera di combustione non avviene mediante il travaso della miscela dal carter pompa, bensì, per via di un cilindro ausiliario, posto accanto a quello attivo, che alimenta di aria e/o di miscela, il cilindro attivo stesso. The present engine is characterized by the fact that the filling of the combustion chamber does not occur through the transfer of the mixture from the pump casing, but rather, by means of an auxiliary cylinder, placed next to the active one, which supplies air and / or mixture. , the active cylinder itself.

Il cilindro ausiliario ha la duplice funzione di aspirare l’aria dall’esterno, e travasarla, mediante specifiche canalizzazioni, nel cilindro attivo, ovviando in tal modo alle perdite di natura fluidodinamiche, li lavoro di alimentazione, non interessa in alcun modo il carter pompa, essendo totalmente svolta dal cilindro ausiliario. The auxiliary cylinder has the dual function of sucking the air from the outside, and transferring it, through specific channels, into the active cylinder, thus obviating fluid-dynamic losses, the supply work, does not affect the pump casing in any way. , being totally carried out by the auxiliary cylinder.

Questo motore, non necessitando di un carter pompa che svolga la duplice funzione di alimentare la camera di combustione e di lubrificare il manovellismo, può impiegare svariati tipi di carburanti, in quanto la lubrificazione degli organi in movimento avviene come in un normale motore a quattro tempi, mediante una apposita pompa di lubrificazione che provvede a lubrificarli. All’interno del cilindro ausiliario scorre un pistone, (mosso da un apposito manovellismo), che provvede a spingere la miscela e/o l’aria nel cilindro attivo This engine, since it does not need a pump casing that performs the dual function of feeding the combustion chamber and lubricating the crank mechanism, can use various types of fuels, as the lubrication of the moving parts takes place as in a normal four-stroke engine. , by means of a special lubrication pump which lubricates them. A piston runs inside the auxiliary cylinder, (moved by a special crank mechanism), which pushes the mixture and / or air into the active cylinder

Claims

CLAIMS 1. The presence on an internal combustion engine, of a cylinder and of an auxiliary piston, with the relative crank mechanism, is claimed as the power supply system of the same engine 2. The elimination of the pump casing function from the two-stroke engine is claimed, as it is replaced by the auxiliary cylinder and piston (with relative crank mechanism), 3. It claims the presence of appropriate ducts / transfers that allow the air and / or mixture sucked into the auxiliary cylinder by the auxiliary piston, and pushed by it, to be transferred to the active cylinder. 4. A power supply system is claimed which first involves the suction of air and / or the mixture inside a cylinder not having a propulsive function, and then the total transfer, of what was previously sucked, into the active cylinder. 5. A timing of the piston crank mechanism of the auxiliary cylinder is claimed, 180 ° with respect to the piston crank mechanism of the active cylinder, ie when the first is at bottom dead center, the second is at top dead center and vice versa.