SU66173A1 - Pump nozzle - Google Patents

Description

VL & are known for the internal combustion engine of the pump nozzle, driven by: the pressure of compressed air in the working cylinder and consisting of a working plunger and a counter plunger coaxially. Also known and pump-nozzles, driven by the pressure of air compressed in the engine cylinder, in which the plunger and sprayer have a translational-rotational movement.

Such pumps also include the proposed injector pump, which differs from the fact that, in order to control the amount of fuel by changing the volume of the pump working cavity, a lever is used that is coupled to the crank and controlled manually or from a regulator.

The design of the pump nozzle is explained in the attached drawing and does not require additional explanation.

The operation of the pump nozzle is as follows. During the suction stroke (or purge), under the action of three release springs / gas piston springs 2, KOTOpoiM has a working plunger 5, a spray gun 4 and a clamping nut 5 goes down. The counterplunger 7, under the action of the pressure of the atmosphere and, additionally, a weak spring I1NY 8, will follow the working plungers, filling its body1 in the sleeve.

The counterplunger 7 will follow the working plunger 5 until its head has fallen back into the fork of the lever 9, which is installed in the opr-unit 0.01 position and adjusts the amount of fuel, respectively, by changing the volume of the pump working cavity. Lever 9 is operated manually or from a controller.

After stopping the downward movement of the counter plunger, the working plunger, continuing downward movement, will leave an empty volume behind it, and when at the end of its stroke with an upper cut nepeiKpoex hole A connecting the fuel supply line to the 6th sleeve cavity, the fuel will quickly fill the entire volume in the bush between the two plungers.

Thus, for the period of movement of the gas pusher, the saoivanie and dosage of fuel required for feeding into the working cylinder in the quantity /

During the compression stroke in the working cylinder of the engine, under the action of increasing pressure of compressed air, the pressure of the gas pusher, overcoming the force of the squeezing springs AND; own weight, go up, advancing upward simultaneously and working plunger 3. The latter, advancing upward, will force out drilling through A and part of the fuel 0 brotherly to the ID and, having blocked this mouth, will lift the terminal between the two plungers, and . - the most and counterplunger. The counter plunger 7 will go up until its head rests on the plate 10, loaded with a strong spring 11. After stopping the upward movement of the copterplunger 7, the fuel, not the output, under the continuing action of the gas pusher and working plunger, will compress until that moment. (the pressure of its compression does not exceed the force of spring 11, which holds the counterplunger p. After reaching the limiting pressure, the coirplunger 7, compressing the spring 11, goes further upwards and opens the upper mouth of the kamala B. Compressed fuel rushes into this space and as at this point, the position of the upward-moving working plunger 5 will be the same, that the oblique groove in the plunger communicating by

central drilling r with the sprayer 1M, coincides with the lower mouth of the channel b, then the compressed fuel will flow into the working cylinder) H1C | p engine. Since the gas pusher has in its upper part screw grooves 12 coupled with the corresponding and grooves 1 and on the pump casing, during the vertical movement the pusher, and with it the working plunger and racifier, will rotate. Thus, when the fuel is injected into the engine, the sprayer will have a translational-1 rotational motion.

Gas piston and nozzle spray cooling. Water from the cooling line is supplied and discharged through a flexible hose to the fittings e and drilling.

Gas piston piston lubrication is supplied by drilling in the wall of the gas pusher cylinder.

Subject invention

A pump nozzle for an internal combustion engine, operating under the influence of a change in air pressure in the engine cylinder, with a loaded spring and an on-plunger coaxially with a working plunger that performs rotational-translational motion, characterized in that the volume of the working cavity of the pump is applied lever 9, coupled with the counter plunger 7 and operated manually or from the controller.

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