RU2529753C1 - Device to measure fuel amount consumed by ice at operation of combat caterpillar machine - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: this device comprises data processing unit, fuel consumption counters with magnetically operated sealed switch and pulse generator. Note here that said counters with magnetically operated sealed switch are fitted in pipeline feeding fuel to high-pressure fuel pump, in pipeline of excess fuel drain from high-pressure fuel pump, in pipeline to drain excess fuel from ICE fuel atomisers and are connected via ADCs with data processing unit.

EFFECT: accurate and well-timed measurement.

2 dwg

Description

The invention relates to the field of military tracked vehicles, in particular to devices for measuring fuel consumption in the fuel systems of power plants of military tracked vehicles (VGM).

Of the analogues studied, as a prototype of the claimed device for measuring the amount of fuel consumed by an internal combustion engine during operation of a military tracked vehicle, there is a device for measuring fuel consumption while driving a military tracked vehicle (patent No. 2313768, F41H 7/02, 2007) containing a recording device , pulse counter, pulse forming unit, reed switch, fuel level sensor in the flow tank, float, reed switch.

The disadvantage of this device is that its design does not provide for the measurement of the amount of fuel returning to the fuel tank from the high pressure fuel pump (TNVD) and nozzles during operation of the VGM engine, but only the amount of fuel entering the high pressure fuel pump from the supply tank is measured. And there is also the possibility of a short-term disruption of mobility (jamming) of the float when moving through the tube due to vibration of the fuel tank, as well as with longitudinal and transverse inclinations of the VGM during movement over rough terrain, therefore, the measurement accuracy of such a device is not sufficiently reliable.

When operating VGM by inexperienced operators, an increased fuel consumption is observed, which leads to an increase in material costs for maintaining the VGM fleet, along with this phenomenon there is a need for additional maintenance operations, since fuel consumption directly reflects the work performed by the machine and, therefore, characterizes the change its actual technical condition.

In this regard, there is a need for timely and accurate control of fuel consumption in order to provide the operator with the opportunity to adjust his actions during the operation of the engine, in order to eliminate the increased consumption of the internal combustion engine resource and uniform exit of the engine to the scheduled maintenance activities.

The objective of the proposed technical solution is the accurate and timely measurement of the amount of fuel consumed by the internal combustion engine during operation of a military tracked vehicle.

The solution to this problem is achieved due to the fact that fuel consumption meters with a reed switch, fuel flow meters with a reed switch, are installed in the pipeline for supplying fuel to the high-pressure fuel pump, in the pipeline for draining excess fuel from the fuel injection pump, in the pipe for the combined drain of excess fuel from nozzles of the internal combustion engine connected to the onboard network of the VGM and are a sealed enclosure with a working cavity, an impeller is installed inside the working cavity with a permanent magnet fixed to the blades, which is closed t the contacts of the reed switch attached to the outside of the sealed enclosure, an electrical pulse is supplied to an analog-to-digital converter (ADC), from which the digital signal enters the information processing unit, the amount of fuel is determined in proportion to the number of signals, and the amount of fuel consumed by the internal combustion engine during operation of the gas-pressure engine, is determined as the difference between the number of signals received in the information processing unit from the fuel consumption meter with a reed switch installed in the fuel supply pipe to the internal combustion engine, and su mm of the signals received by the information processing unit from devices that determine the amount of fuel installed in the pipelines for the discharge of excess fuel from the high-pressure fuel pump and the combined discharge of excess fuel from the nozzles of the internal combustion engine. The calculated data is displayed on an electronic display.

The device is graphically depicted in figure 1, 2. It consists of an electronic display 1, a fuel consumption meter with a reed switch 4, 8, 11, ADC 2, 3, 12, information processing unit 13.

There is a device for measuring the amount of fuel consumed by an internal combustion engine during operation of a military tracked vehicle, as follows: when starting and operating an internal combustion engine, fuel from a fuel priming pump is supplied to a fine filter 9 and then goes to fuel consumption counters with a reed switch 2.

The fuel consumption meter with a reed switch 2, 4, 11 is presented in figure 2. It consists of a sealed housing 19 with a working cavity 20, an impeller 21 is installed inside the working cavity, with a permanent magnet 22 fixed to one of the blades, a reed switch 18 is attached to the sealed housing from the outside, the contacts of which are connected to the onboard power supply of the VGM.

Under the influence of the fuel pressure, the impeller 21 is brought into rotation, while the contacts of the reed switch 18 are closed at each full revolution, under the influence of a magnetic field created by a permanent magnet 22, mounted on the impeller blades 21, the electric pulse enters the ADC 12, where it is converted to binary code and enters the information processing unit 13, the amount of fuel is determined in proportion to the number of pulses. During the operation of the internal combustion engine, the surplus fuel received by the injection pump 7 (Fig. 1) is discharged into the fuel supply system via pipeline 10, flowing through the fuel consumption meter with reed switch 11, the electric pulse from which is fed to the ADC 3, and then the signal is converted into binary code enters the information processing unit 13, the amount of fuel is determined in proportion to the number of pulses. The excess fuel from the nozzles 6 is discharged into the fuel system through the combined discharge pipe 5, while flowing through the fuel consumption meter with a reed switch 4, the electric pulse from which is fed to the ADC 2, and then the signal converted into binary code is sent to the information processing unit 13, the number of fuel is determined in proportion to the number of pulses.

The information processing unit consists of a microprocessor 15, a real-time clock 14, a backup power supply 16, and non-volatile memory 17. The information received in the information processing unit 13 from AOC 2, 3, 12 is processed by the microprocessor 15, taking into account the time of their receipt from the clock real time 14. The amount of fuel consumed by the internal combustion engine during operation of the military tracked vehicle is determined as the difference between the number of signals received by the information processing unit 13 from the flow meter fuel ode with reed switch 8, and the sum of the signals received by the information processing unit 13 from the fuel consumption counters with reed switch 4 and 11. The calculated data is displayed on the electronic display 1.

Using the proposed device allows you to accurately and timely determine the amount of fuel consumed by the internal combustion engine during the operation of a military tracked vehicle, allowing the operator to adjust their actions during the operation of the VGM to ensure a reduction in fuel consumption, thereby eliminating the hanging consumption of the internal combustion engine resource.

Claims (1)

A device for measuring the amount of fuel consumed by an internal combustion engine during operation of a military tracked vehicle, comprising an information processing unit, fuel consumption counters with a reed switch, an impulse generating unit, characterized in that in the fuel supply pipe to the high pressure fuel pump, in the excess fuel discharge pipe from the high pressure fuel pump, flow meters t are installed in the pipeline for the combined discharge of excess fuel from the nozzles of the internal combustion engine fuel with a reed switch, which are connected via analog-to-digital converters to the information processing unit.

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