SU58869A1 - Device for launching internal combustion engines - Google Patents

Description

From the practice of operating gas-generating tractors it is known that the last jiggers in the winter-time, after a long-standing stopping, it can be extremely difficult to start.

This phenomenon is explained by the nature of the fuel used to power the engine. The engine’s suction piping, when operating on the generator gas, has preheating and its wall temperature can sometimes drop well below 0 °.

Generator gas always contains in itself A known amount of water vapor. Passing through the suction pipe, the gas condenses its moisture on the cold walls, as a result of which the latter produces a thick layer of moisture with a developed surface.

When the engine is running, this frost does not play a big role, but when starting the engine, which, as you know, is usually made on gasoline, using m for this carburetor and primer mounted on the intake manifold, even abundant filling of gasoline does not always goals, because cold gas evaporates badly

the part of it, which managed to evaporate, does not reach the cylinders due to hell, its sorption by the layer mentioned above. Separate droplets and even trickles of non-evaporated gasoline, getting into the engine cylinder at the time of the filling itself, not only improve the position, but significantly worsen it, because the lubricant is washed off the cylinder walls, which causes compression and the piston friction against the cylinder wall increases, turning the engine more difficult.

In order to facilitate the start-up of the engines of the tractor, under these conditions, it was already proposed to prepare an air-fuel mixture by heating gasoline, which was then supplied under pressure with the help of a hand pump into the suction line.

In the proposed device, gasoline is also supplied under pressure in a heated form into the suction pipe, for which it is passed through a coil located in the heater. However, this device differs from the known devices of this kind in that the nozzles of the gas supply nozzles for each cylinder are located in the immediate vicinity of the suction valves.

Due to this, simultaneously with the possibility of better vaporization of the ingress into the cylinder through the heaters, the adsorbing effect is not reduced due to the supply of Herfccpe cTBeHHo fuel to the valves.

In FIG. 1 depicts the general scheme of the podoposobl and; FIG. 2 - two vertical cuts in mutually perpendicular planes of the gasoline container; FIG. 3 is a longitudinal section of the pump for supplying gasoline to the injectors; FIG. 4 is a vertical section of the heater tank and FIG. 5 is a section through the nozzle of the nebulizer.

The device has a small vessel 1 with a lid, with a capacity of about 0.5 liters, 3 which is installed near the intake pipe of the engine. Under the vessel there are two small manual piston pumps 2. From pumps 2 pipelines 3 go to two spray nozzles m 4 installed on the engine intake pipe in the immediate vicinity of the valves. In order for gasoline to evaporate better, it is preheated (before the nozzle) is somewhat heated in heaters 5.

Vessel 1 (Fig. 2) is best made by stamping & n from one piece of 2 mm steel. It: has a lid 7 on top with flanged edges allowing the vessel to be tightly closed. In the cover there is a small opening 8 for communication with the atmosphere. The cover, IBO to avoid loss, is made on the hinge 9. Two short pipes, steel pipe tubes 10 are welded at the bottom of the vessel. They serve as housings of pumps. These housings are connected to: the vessel through the openings 11, equipped with automatic ball intake valves and valves with a spring.

Each pump (FNG. 3) is made in the form of thick-wall. steel tube 12, with one CTOpoiHbi - having a welded bottom 13. Kpafl iBTOparoi ends have a thread on which a removable cover 14 probably has to be removed. Through the opening of this roof and the rod 15 passes with a handle 16. The second forge rod has a piston 17, it is enough tightly fitting to the walls of the tube 12. The piston all the time tries to press the strong spring 18 to the left. The vessel 2 of the pump 2 communicates through the hole into which the automatic intake ball valve 19 is inserted from the inside of the vessel 19. At the bottom 13, the clamp 20 is reinforced (also ball valve tim conduit 3 connecting the pump 2 to the spray nozzle 4.

A conventional type of pipe 3, used for automobile gasoline pipelines, made of thin copper or better steel pipes, has flanging at the ends and is attached with connecting nuts. At its length, the pipeline has two coils to prevent the flame from the preheater from penetrating along it, if gasoline leaks accidentally along the pipelines (4 ports. In addition, there are 1-2 more pipes inside the heater 5.

Heater air 5 (Fig. 4) is made in the form of a Sky Punching vessel 21, at the bottom of which there are several sky rows of Loose holes 22. From above, the vessel has a cover 23 also with several small holes MTI 24, mounted on a hinge 25.

The spray nozzle 4 (Fig. 5) is filled in the form of a nozzle of the tube. Having a few nekolko very small holes to 0.3-0.5 mm. If it is not possible to manufacture such a tube, it is possible to take the jets with one hole.

The nozzle 4, by means of a special nozzle, is connected to the free end of the conduit 3 extending from the pump 2, and is fixed in a special opening made in the suction pipe 6 of the engine. The nozzle is strengthened so that its end with holes goes in 10-15 mm in the inside of the draw-down pipe. “The proposed device works — as follows.

In vessel 1 (Fig. 1), a small amount of beneline is poured. Heaters 5 are put into the vessels of a certain amount, swarm of hot coal, or simply much ends moistened with kerosene or gasoline, which are then ignited. When preheater 5 is slightly preheated (2–3 min), the engine is started, turning it over the flywheel by a crowbar, as usual. Just before turning it in, the pistons of the pumps 2 are pulled to the hilt until they fail, filled in this way: the pumps with gasoline. After releasing the handles, the pistons 17 of the pumps 2 with force are supplied by the springs 18 to their place, and the gasoline in the pumps is pushed through the heater 5 and a series of thin streams, well discharged from the nozzles 4. This ensures good evaporation of gasoline and since the supply of gasoline lasts all the time until the spring returns the piston to the extreme position, it is possible to make several turns of the flywheel, during which the cylinders will be filled with fresh working mixture, and there will be enough gasoline even to enrich the original one flashes in the cylinders, i.e., until the engine has time to gain momentum.

As shown by the practice of using this type of devices, they

extremely easy to start the engine, even in severe frosts.

Fire danger does not occur here, since the amount of gasoline in the system is very small, and it is not possible to penetrate open flame to gasoline. Since on a gas generator tractor a normal gasoline tank is removed, and the gasoline supply on the tractor is very small, even in case of fuel ignition in the vessel of adaptation, no dangerous consequences for the tractor can arise.

The subject matter of the invention.

A device for launching internal combustion engines, especially gas generator ones, with a gas pump that is passed under pressure through a coil in the heater and supplied through the nozzles VO to the suction pipe, which has nozzles for supplying gasoline nozzles for each cylinder in close proximity to suction valves.

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