US2293352A - Explosion engine - Google Patents

Description

Aug! 1942- c. B. mum 2,293,352

EXPLOSION ENGINE Filed Jan. 26, 1940 Ltd/2:4 To? CLBMOZJM /97 roam/5 y Patented Aug. 18, 1942 UNITED STATES PATENT OFFICE 5 Claims.

This invention relates to improvements in explosion engines, and particularly to the cooling of the cylinders.

While it istrue that important improvements have been developed lately in explosion engines, no great progress has been made in the cooling of cylinders, which is still obtained through circulation of water or air.

The improvements subject of the present invention are applicable to any type of explosion engine, and are based on a physical principle so combined that a real self-refrigeration is obtained without any additional consumption of power and in the most simple manner.

The present invention uses the heat of the cylinders in operation to produce a physical reaction in the gas coming from the carburetor, which will result in the necessary cooling to absorb a large amount of the heat caused by the explosions, with the additional advantage of providing a recarburation of the fuel that will render the effect more effective when burning in the cylinder chamber.

For this purpose, the admission pipe from the avoid overheating of the cylinder. This may be aided, if desired, by other cooling means cooperating with this automatic cooling.

In order that the invention may be more clearly understood and readily carried into practice, same has been illustrated by way of example and in a preferred embodiment in the accompanying drawing, wherein the single figure is a view of an engine provided with the means for obtaining self -cooling, showing the manner in which vaporization is caused by the heat received from the cylinder itself.

With reference to the drawing, a indicates the body of the engine which usually comprises two or more cylinders I with respective pistons 2 having connecting rods 3 connected to the pins of crank 4.

The explosion engine has the corresponding carburetor b, the outlet of which is coupled to the admission pipe 0, in the present instance branched so as to lead to the inlets 5 of the cylinders I.

The inlets 5 are closed by valves 6 through the pressure of a spring I centered on stem 6', Each As is customary in engines of this type, each cylinder I has an exhaust pipe for the exhaust of burned gases, and the engine also comprises a corresponding electric ignition system with a spark plug in the chamber of each cylinder.

The present invention takes advantage of the working heat of the pistons 2 in order to obtain a self-refrigeration, and for this purpose the admission pipe, in leading to the inlet 5 of each cylinder I, passes through a length of conduit I3 arranged adjacent to the cylinder to be fed.

Due to the fact that the conduit I3 has a common wall with the cylinder, the heat generated by the explosions is irradiated directly towards the interior of said length of conduit I3.

Upon effecting the suction by the stroke of the piston 2, valve 6 opens due to the control of cam shaft I2 which displaces the slide II of rod I0.

With such suctioning effect, the gasoline or gasoline gas mixed with air in the carburetor passes through the admission pipe 0 and on reaching the conduit length I3, is vaporized due to the heat irradiated from cylinder I. This means that the fuel suifers a transformation or change resulting in the consequent cooling, and logically will absorb the surrounding heat, thereby cooling the adjacent cylinder I.

For this irradiation effect, the walls separating the cylinder and the conduit I3 are made of good heat conducting metal.

Apart from acting as a refrigerant, the fuel on vaporizing and absorbing the surrounding heat, acquires a condition which favors combustion, and due to the fact that it has been transformed into vapor, it is more highly carburating, as if it had been subject to recarburation. Therefore, on entering the chamber of cylinder I, it will produce a more effective action. with the consequent increase in efliciency.

Therefore, the suction of the mixture of fuel and air derived from the carburetor b, upon passing through the conduit I 3, will produce the cooling of the same cylinder and at the same time cause a recarburation or preparation of the fuel in highly carburating conditions.

If desired, apart from the length of the admission pipe arranged adjacent to the cylinder I, other water or air cooling means may be combined to cooperate therewith.

The length I3 is parallel to cylinder I, but it of bifurcation, said admission conduits having 'a' portion of their length located adjacent to each cylinder, said admission conduits also 'having'a constant cross-section from said point 'of bifurcation to the inlet of each cylinder so that said portion of the admission conduits located adjacent each'cylinder is not deformed and follows a straightline substantially parallel to the longitudinalaX-is ofeach cylinder.

ZpAnimprOVement'in internal combustion engines as set forth in claim 1 wherein the admissionconduithas'a constant cross-section from the point of bifurcation from the main conduit to the point where it enters the cylinder, whereby in 'maintainingits cross-section, said conduit has contact by means of a simple length or linear portion of the cylinder Walls.

3. An improvement in internal combustion engines as set forth in claim 1 wherein the portion of the admission conduit located adjacent the cylinder is longitudinal thereto, and wherein said conduit, without surrounding the cylinder, only contacts the wall of said cylinder in a linear portion thereof.

4. An improvement in internal combustion engines comprising cylinders having inlets, pistons reciprocating in said cylinders, a carburetor, a main conduit leading from said carbureter to the inlets in said cylinders, said main conduit being divided into two branches and said branches from the dividing point to the respective inlets having a constant cross-section, each branch of said main conduit having a linear portion in contact with the walls of a cylinder in such a way that saidportion of the branch follows a straight line parallel to the virtual axis of the cylinder.

5; 'An improvement in internal combustion engines as set forth in claim 4 in which said two branches extend longitudinal to the'cylinderat the portion thereof adjacent eachcylinder and each branch has contact with only one linear length of the wall of the cylinder.

CARLOS BALLESTER MOLINA.

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