SU43290A1 - Device for metering the consumption of liquid fuel in motor vehicles - Google Patents

Description

The invention relates to such devices for metering fuel consumption in motor carriages in which the tank supplying fuel to the carburetor communicates with a measuring tank placed in it through a valve controlled by a float located inside the measuring tank. The proposed device is intended to maintain a constant level in the tank communicating with the carburetor. This goal is achieved by using a second valve to communicate one tank with another controlled float located in the tank that communicates with the carburetor.

The drawing depicts a longitudinal axial section of the device.

Under the cover of the tank / 3, which communicates with the carburetor, there is a measuring tank M which communicates through the needle valve 2 with the first tank. The tank M is communicated via valve 5 to the engine intake pipe, through valve b to the outside air and via a pipe / 5-tank for fuel. The core of the needle valve 2 is made hollow and provided with two stop flanges 3 interacting with the float /, which freely covers the valve stem 2. In order to adjust the distance between the flanges 3, the upper

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from them it is mounted on a core of the valve 2 by means of cutting. Both valves 5, 6 are interconnected by means of rocker arms / 7, pivotally fixed on the tank cap / 3 and pivotally articulated with rod 4, screwed into valve stem 2. A spring 76 is used to hold the rocker arms / 7 in the extreme positions.

As the level of fuel in the tank / 4 decreases, the float 7 lowers along with this level and acts on the lower flange 3, which causes needle valve 2 to fall on its saddle. At the same time valve 5 opens and valve b sits on its saddle, ensuring new tank filling / 4, in which the float / rises again and acts on the upper flange 3, causing the valve 5 to sit on its seat and the valve 6 to open, providing a new emptying of the tank M.

In order to limit the oscillations of the valve stem 2 when the wagon has been worn, the float 7 is enclosed inside the guide cup / 2. To account for fuel consumption, the rod 7 of the valve 6 is articulated with the ratchet gear 8, mounted on a roller with an arrow sliding along the dial.

To maintain the level of fuel in the tank 73, a valve 70 is used at a constant height, blocking the message of the tank 73 with the tank 74 by means of

a float 9 located in the tank 73. For greater stability of the valve 10, a counterweight 77 is applied in its extreme positions.

The subject matter of the invention.

A device for metering the consumption of liquid fuel in motor carriages, comprising a measuring tank placed inside the second tank and communicating with this second tank by means of a valve controlled by a float of the measuring tank, characterized in that, in order to limit the height of the lift of liquid fuel in the second tank, an additional valve is used, blocking the communication between the two tanks with the help of a float located in the second tank.

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