SU1350504A1 - Device for measuring weight consumption of fuel by internal combustion engine - Google Patents

Abstract

The invention makes it possible to increase the reliability of measurement by the diazation of the fuel. For this, the expansion tank / f Toppi / 8 / I tank 2 is connected to the power supply system of the engine 1. The lower part of the tank is connected to the outlet of the measuring tank 11, the upper part is connected to the motor bypass 5 and the tubular siphon 4 through the electromagnetic valve 8. When measuring the excess fuel supplied by the engine’s pumping pump is transferred through line 5 to the upper part of tank 2. Since the tank’s cross-sectional area is larger than that of the main line 5, the flow rate decreases sharply. Air bubbles, having 1C11es in the fuel, float and are released into the atmosphere. Only the amount of fuel consumed by the engine is taken from the measuring tank. 1 il. (GSO5 ate about eaten VW / 5 /

Description

The invention relates to machinery and can be used in the calculation of fuel consumption of an internal combustion engine during their testing (ti.

The purpose of the invention is to increase reliability by fuel diazization.

The drawing shows the scheme of the device, 10

The device contains an internal combustion engine 1, a cylindrical expansion tank 2, an electromagnetic valve 3 installed between the upper part of the expansion tank 15 and the tubular siphon 4, the upper part of the expansion tank being connected to the engine bypass 5, and the fuel line -6 with the input of the power supply system 20 and the fuel line 7 with the output of a device for measuring fuel consumption. consisting of electromagnetic valves 8 connected to the fuel tank 9 and connected with the fuel line 25 10 - with the measuring container 11.

Experimental studies have established the following optimal geometrical ratios of the gas collector 2.-30

The distance between the centers of the lower and upper inlet openings D is 20-25 D, where D is the diameter of the fuel lines. The recommended shape of the gas collector is cylindrical. . The height of the gas collector H 1,2-1,3D; capacity V 715 (0.1-0.1 5) St. d,, where ,,, Л - nominal hourly consumption of diesel in liters.

The device works as follows. During the entire time preceding the measurement, the lower inlet of the tank 2 through the conduit 7 and the open electromagnetic 45 valve 8 is connected to the supply fuel tank. During the measurement, the lower entrance of the tank 2 is connected through the open electromagnetic IJQ crane 9 and pipeline 10 with a 35

five

0

0

five

Q

five

With a capacity of 11. In measurement mode, valve 9 is open and valve 8 is closed. While waiting for measurement, the valve 8 is open, the valve 9 is closed. When measuring, the excess fuel supplied by the booster pump of the engine is bypassed through the bypass line 5 in. The upper part of the expansion tank 2. Since the tank cross-section area is much larger than the cross-section cross section. line 5s, the flow rate decreases sharply. Air bubbles present in the fuel float up and are released into the atmosphere through an open electrically operated tap 3 and siphon 4.

Before measurement, valve 3 is closed, and immediately after the measurement is completed, it is closed.

Since the fuel bypass is carried out in the expansion tank 2, only the amount of fuel consumed by the engine is taken from the measuring tank.

Claims (1)

Invention Formula A device for measuring the weight of fuel consumption by an internal combustion engine, containing a measuring capacitance associated with an engine power supply system and mounted on a weighing mechanism equipped with an overlaying unit with an electric motor and electromagnets, a photoelectric deflection sensor connected through an amplifier to the fuel supply control system , trigger element and electronic clock. It is distinguished by the fact that, for the purpose of noBbmjeHHH reliability by means of fuel diazation, the device additionally contains ritelny tank associated with the engine power system, the solenoid valve and siphon trub- chaty, wherein the lower chaete expansion tank connected to vkodom measuring container, the upper portion - with a bypass manifold of the engine and to the siphon via a solenoid valve.