SU1379469A1 - Device for checking fluid level in reservoir - Google Patents

Abstract

The invention makes it possible to improve the accuracy of measuring the level of a liquid by eliminating the influence of sediment at the bottom of the tank and the variability of the composition of the gas above the liquid level. A vertical guide cylinder 11 with longitudinal grooves is installed on the bottom of the crankcase, damping the movement of the float 10 during sharp fluctuations in the oil level in the crankcase. In the cylinder 11 is placed radioactive isotope. The ionization chamber 4 is made with a conical upper part 6. The magnitude of the electric current arising in the circuit when it is closed by the switch 15 depends on the ion concentration between the 3-disk disks 5, which in turn depends on the distance between the chamber 4 and the isotope. The position of the latter relative to the level 3 of the oil remains strictly determined, therefore the amount of current in the circuit corresponds to the level 3 of oil. 1 hp f-ly, 3 ill. (L

Description

:about

1

The invention relates to mechanical engineering, namely, devices for controlling the level of liquid in containers and, in particular, the level of oil in crankcases of internal ci engines.

The purpose of the invention is to improve the accuracy of measuring the liquid level by eliminating the influence of sediment at the bottom of the container and the variability of the gas composition above the liquid level.

Figure 1 shows the installation of the device with respect to the internal combustion engine; Fig. 2 illustrates the structure of a float; on fig.Z - napravl yupshchy cylinder.

The device contains a container with a liquid, in this case, the crankcase 1 of the internal combustion engine, filled with oil 2 to level 3, ionization chamber 4 with electrodes- disks 5 and conical top 6, electric level indicator 7, current source 8, radioactive isotope 9, located inside the float 10, a vertical guide cylinder 11 with grooves 12 and upper 13 and lower 14 limiters, and an electrical switch 15.

The device works as follows.

When the circuit is closed by an electric switch 15, an electric current appears in it, the value of which depends on the concentration of ions between the disk electrodes 5, depending on the distance between the ionization chamber 4 and the radioactive isotope 9, for example thallium or cobalt

9 is located inside the float 10 placed in the vertical guide cylinder 11, its position relative to level 3 of oil 2 is strictly defined, therefore the amount of current in the circuit corresponds to level 3 of oil 2 embedded in the crankcase 1 of the internal combustion engine, and by the deviation of the electric indicator of level 7 measuring the amount of electric current in the circuit, it is possible to judge the magnitude of level 3.

Inside the vertical guide cylinder 11 there is an upper stopper 13, not positioning the float.

0

five

0

five

0

five

five

0

five

10, jump out of the guide cylinder 11, and the lower stop 14, which prevents the float 10 from stopping in the conical part 6 of the ionization chamber 4. The oil 2 enters the vertical guide cylinder 11 through slots 12, which dampen the movement of the float 10 3 of oil 2 in the crankcase 1, for example, due to the movement of the vehicle on which the internal combustion engine is mounted. The effect on the readings of the electric indicator 7 of the sludge falling during the operation of the internal combustion engine is eliminated by making the upper part of the ionization chamber 4 conical, from the surface of which the sediment is removed naturally.

The absence of a gas interlayer between the level 3 of oil 2 and the float 10 eliminates the effect of a different gas composition on the readings of the electric level indicator 7.

Claims (2)

Invention Formula 1, A device for monitoring the level of a liquid in a container, preferably in the crankcase of an internal combustion engine, containing an electrically connected ionization chamber, an electrical liquid level indicator, an electrical current source, and a radioactive isotope, characterized in that, in order to increase the accuracy measuring the liquid level by eliminating the effect of sediment at the bottom of the tank and the variability of the gas composition above the liquid level; the device is equipped with a vertical guide cylinder; Niemi with longitudinal slots, provided with a float with a radioactive isotope and mounted on the bottom of the vessel disposed therein, and an ionization chamber provided with a conical upper portion extending into the guide cylinder and is disposed vneschney of the container bottom. 2. A device as claimed in claim 1, about tl, which means that the guide cylinder is provided with upper and lower limit stops for the movement of the float. ten pin. F1 / G3