GAS METERING VALVE FOR HIGH POWER INTERNAL COMBUSTION ENGINES Russian patent published in 2023 - IPC F16K31/02 

FIELD: engine building.

SUBSTANCE: invention relates to gas supply systems in gas and gas-diesel internal combustion engines of high power with electronic fuel supply control. In the invention, the electronic control unit is configured to control the opening time of the valve, the inlet channel of the valve, which enters the radial supply cavity, is located so that its overlap is perpendicular to the gas flow; additionally, gas windows are introduced into the device located at the outlet of the supply channel and evenly distributed along the entire radial supply cavity, a return spring mounted on the longitudinal axis of the movable armature of the electromagnet and ensuring the normally closed position of the valve when the control voltage is removed or absent on the electromagnet, unloading channels made in the movable armature of the electromagnet, and the internal valve holder installed between the valve body and the electromagnet; moreover, the movable anchor, rigidly connected to the valve disc, is made cylindrical and configured for attraction, the sealing ring of the valve seat is made with a circular cross section, the elastic membrane is made in the form of a washer of an elastic material having a high degree of stretching, and is tightly clamped along the inner rim between the movable anchor and valve disc, and along the outer rim between the limiter ring and the inner valve holder, the limiter ring is made of steel and configured for adjusting the height of the valve disc above the seat so that the change in the height of the limiter ring is directly proportional to the change in the throughput of the gas metering valve.

EFFECT: exclusion of additional pressing force of incoming gas pressure to open the valve, increase in accuracy of gas dosing, decrease in gas consumption in all operating modes, increase in the total service life of the internal combustion engine and simplification of the manufacture and assembly of valves of various flow sections.

5 cl, 4 dwg