DE74067C - Two-stroke gas engine with differential piston - Google Patents

Description

IMPERIAL

PATENT OFFICE.

'' The gas engine forming the subject of the present invention works in two-stroke, in such a way that towards the end of the suction clearance those on the full side of the differential piston are compressed Combustion gases pass over to the gas mixture and thereby cause a compression of the latter, whereupon the ignition takes place and the ignited mixture from the left side of the differential piston to the Full page passes.

Such a machine is shown in two different versions in the accompanying drawing shown.

In Fig. Ι α is the differential piston. The gases are admitted through channel b while exiting at c. The ignition takes place near b. In the piston there is arranged a valve d which is under spring pressure and which opens towards itself towards the full side.

The effect is as follows:

If the piston moves to the right, the gas mixture is sucked in through b , while on the other side of the piston the combustion gases are first released by suitable control of the outlet valve, but then after the outlet valve closes, the remaining part of the combustion gases is compressed.

When the piston α has almost reached the end of its stroke, the opening f ^{1 of} the channel f extends into the suction chamber, so that the compressed combustion gases pass through the channel / from the piston side II to the piston side I; this results in a compression of the gas mixture.

Immediately afterwards the ignition takes place by means of an ignition device provided in the vicinity of b.

The resulting pressure of the exploding gas mixture causes the valve d to open, so that the ignited mixture passes through the piston from the piston side I to the side II, whereupon the return path begins as a result of the differential action of the pistons.

The same game is then repeated.

In the embodiment according to FIG. 2, instead of the valve d in the piston itself, a valve d ^l is arranged outside; the following effect occurs:

If the piston α moves upwards, a gas mixture is sucked in through b , while the piston side II, as in the previously described embodiment, first expels the combustion gases due to suitable control of the outlet valve c and then compresses the rest of the latter.

When the piston has almost reached the end of its stroke, valve d ^{1 is} forced to open so that the compressed combustion gases pass from piston side II through channel g to piston side I, whereupon ignition takes place from b.

The ignited mixture then again passes through the channel g to the piston side II and causes the piston to decrease with work output.

A regular failure of the ignitions can also be achieved by suitable control of the valves be brought about.

Claims (1)

Patent Claims: i. Two-stroke gas engine with differential pistons, characterized in that the on the Combustion residues compressed together on the larger piston side at the end of the stroke The charge on the small side of the piston crosses over, which then causes the charge to ignite takes place and the force is exerted by the ignited gas mixture crossing over to the larger side of the piston. A two-stroke gas engine according to claim ι., In which the piston itself the channel for the passage of the combustion residue opens at the end of the stroke and the passage of the ignited gas mixture takes place through a valve in the flask. A two-cycle gas engine according to claim i., Wherein the combustion residues as well as the ignited gas mixture through a channel closable by means of a valve cross the other side of the piston. For this purpose ι sheet of drawings.