SU99727A2 - A device for dispensing a fluid, such as a fuel - Google Patents

Description

The known devices for dispensing fuel by volume with subsequent recalculation of it into a weight expression have the disadvantage that they require separate metering and recalculation using translation tables.

Basically auth. St. No. 68884 describes a device for dispensing fuel by weight, made in the form of a hermetic measuring device, equipped with a manual distribution valve, filled with fuel during vacuum and emptied under pressure. A disadvantage of this device is the need to rearrange the drain tube on a scale, which is inconvenient to use the device and makes it difficult to adjust the amount of fuel dispensed according to its specific weight.

In the proposed device, in order to simplify servicing and adjust the amount of fuel dispensed according to its weight, directly in the device itself, a drain tube for setting the level of fuel in the measuring device is mounted on a rack which interacts through a pinion gear with a second rack at the bottom of a metal hydrometer, fixed on the surface of the measured liquid with a screw clamp.

The drawing shows a diagram of the device.

The housing 1 of the measuring device in the bottom 2 has a system of heating channels and a vacuum and pressure channels, as well as a manual switchgear with a handle 3.

The upper part of the measuring device is made in the form of a hollow cylinder 4.

Inside the measuring device there is a metal hydrometer 5 with a screw clip-clamp 6, a vertical gear rack 7 with a thrust pin 8, a gear wheel 9 coupled with the rail 7 and a second rail W. The latter is rigidly connected to the drain tube // having a drain hole 12. At the top 4, the stop 13 is installed.

In the initial position of the device shown in the diagram, the screw clamp 6 is released, the hydrometer 5 is in a free position to rest on the base 8 of the reiki 7. The latter is in the lowest position set by the turning wheel 9 counterclockwise, and the rail 10 is from the drain the tube is in the extreme upper position, limited by the stop 13. The drain hole 12 is located at the initial level A.

Under vacuum, the measuring device fills with fuel above level A, i.e., with some excess, which is discharged through hole 2 and tube 11 into the supply tank, and stable level A is established in cylinder 4. Hydrometer 5 floats up, is established in a stable position, the density of the fluid, and is fixed in it by a screw clamp 6, in this case, the support for the tip 8.

By turning the gear wheel 9 clockwise, the rail 7 moves up to the stop 8 in the bottom of the hydrometer 5, and the rail 10 moves down. The drain hole 12 is then set at a level at which the volume of liquid will correspond to a given weight. The fluid located above the opening 12 is drained into the supply tank, and in the cavity of the measuring device there remains a volume of liquid, which constitutes a certain weight dose, which by turning the handle 3 is released under pressure from the measuring device and delivered to the consumer.

When it is necessary to re-issue equal weight doses, the measuring device is again filled with fuel without changing the position of the rails 7 and W, and the process is repeated.

Since the weight of the p hydrometer, the diameter d of its rod, the diameter D of cylinder 4, and the weight P of the liquid in the measuring device are calculated by the equation, when measuring liquids with different densities, the outflow of the hydrometer rod above the initial level A allows you to mechanically set the drain hole 12 to the desired level, which ensures a given dispensing of the volumes of the liquid in accordance with its specific weight.

Subject invention

A device for dispensing fluids, for example, fuel to tractors, according to ed. St. No. 68884, characterized in that, in order to simplify servicing and to adjust the amount of fuel dispensed by its specific weight directly in the device itself, a drain tube for setting the level of fuel in the measuring device is mounted on a gear rack, interacting through the intermediate gear wheel with the second gear rack, equipped with an anchoring point in the rear, a metal hydrometer, which is fixed after floating up in the measured liquid with the help of a screw clamp.