DE352499C - Mixture generator for oil machines - Google Patents

Description

The invention relates to a mixture generator for internal combustion engines, in which the liquid fuel is atomized under pressure. Part of the necessary combustion air is invariably supplied, a different part according to the various loads of the engine to a variable extent. The drawing shows, for example, an embodiment of the invention, and ίο means

Fig. Ι a section through the atomizer chamber,! Fig. 2 is a plan along the line AB \ of Fig. I,; Fig. 3 an individual representation of the Regu- | lifting lever,

Fig. 4 a section along the line EF in J Fig. I. ;

The pump a, which pushes the fuel into the spray chamber, is driven by the j control shaft b of the engine. The fuel is subjected to a greater pressure by the pump α and is very finely atomized by the atomizer c. The atomization takes place in a special chamber d, in which the fuel mixes at the same time with air, which enters _{through the air nozzle e t.}

The atomized fuel is fed into the cylinders by the moving air stream. It can be caused to burn in this way except petrol and benzene and ¹ Petroleum and RoKöl beneficial.

If you want to idle or have a low number of revolutions, you throttle the mixture. Since little or no air enters the chamber during throttling, a fuel-rich mixture is created in it. This mixture is fed by a special annular slide m additional air to an increasing extent, so that any desired gas-air mixture is obtained, having to regulate α without the pump. The entire regulation is carried out by the regulating lever k of the throttle valve, including the drive of the ring slide m. The ring slide m is provided with teeth into which the bevel gear / engages, which is fixed on the axis of the throttle valve. The air holes ^ in the neck of the chamber d are gradually released through the holes 0 of the ring slide m , so that additional air flows in increasingly when the throttle valve is closed. On the other hand, when the throttle valve is open, the channels ^ are closed, since at this time enough air is already flowing into chamber d and a properly composed mixture is created in this.

The unused fuel is deposited in drops on the walls, runs downwards and is fed back to the fuel container i at the bottom of the chamber through a hole g and a special tube h. So the remaining fuel is used up.

The particular advantage of the whole arrangement is that it is possible to achieve the required fuel and air ratio by moving a single lever k.

When idling, a small opening of the throttle valve is sufficient, so that only a little fuel and, on the other hand, a lot of additional air is introduced.

At medium load, the throttle valve is half open and therefore half fuel and half additional air can be introduced.

When full, the throttle valve is fully opened, thereby shutting off the additional air.

A gas mixture corresponding to the changing loads on the engine is thus generated by the movement of one lever k.

Claims (1)

Patent claim: Mixture generator for oil machines, in which a constant amount of fuel exceeding the maximum requirement of the machine is atomized in a mixing chamber under pressure, but the unused fuel is diverted away from the chamber and the combustion air is passed to the atomized fuel through an unchangeable main air cross-section in the wall of the mixture chamber and a variable additional air cross-section arranged in the suction line upstream of the throttle valve is supplied, characterized in that the throttle valve (V) is connected to the additional air slide (m) in such a way that the additional air openings (p) are closed when the throttle valve is open, but when the throttle valve is closed are fully open. For this purpose ι sheet of drawings.