Fuel dosing valve

A high flow fuel dosing valve, comprising:

• a coil body made of ferritic stainless steel alloy material and having hollow staggered cylindrical-shaped physical vapor deposition surface treatments made of diamond-like carbon), the coil body comprising:
• a housing having a hollow cylindrical shape, the housing comprising an internal thread and a cylindrical-shaped recess arranged at a first end and a lid having a circular shape arranged at a second end opposite the first end, the lid comprising three circular recesses and an oblong hole;
• a bottom having a hollow staggered cylindrical shape, the bottom extending from the lid and comprising a staggered cylindrical-shaped fuel inlet channel with a recess in an anterior external part for placement of an O-ring, the fuel inlet channel comprising a cylindrical anterior inner part, a conical central part, and cylindrical posterior part extending into an interior of the housing;
• and
• a connector molded externally around the bottom, the connector comprising a hollow parallelepipedal tip and rectangular connector locks;
• a coil of a cylindrical shape that is internally embedded in the housing of the coil body, the coil comprising:
• two rectangular-shaped coil terminals plated with a metal;
• AWG24 copper wire windings;
• and
• a base comprising a hollow spool of thermoplastic polymer material with polyphenylene sulfide, 40% fiberglass filler, and insulating resin;
• a spring of spring-steel alloy material with silicon and chrome EN 10270-2 VD SiCr, the spring having a length in a range of 9 mm to 11 mm, a diameter in a range of 3 mm to 5 mm, from 8 to 15 windings, and a wire thickness in a range of 0.4 mm to 0.6 mm;
• a needle made of ferritic stainless steel alloy material, nitrided and coated with titanium nitride (TiN), the needle having a cylindrical shape and comprising:
• a stepped external surface;
• an interior recess disposed at a first end of the needle, wherein the interior recess is configured to accommodate the spring;
• a cylindrical-shaped channel with a central portion having an internal diameter in a range of 3.5 mm to 4.5 mm;
• and
• a solid round tip with four cylindrical shaped holes distributed at an angle (a) from 25° to 35°;
• a cylindrical guide ring made of 304 stainless steel material and fitted around the needle;
• a cylindrical lock made of stainless steel material with a beveled outer front edge, a funnel-shaped inner back with a convex angle at a beginning and a concave end;
• a seat made of alloy material chosen from bronze and brass, the seat having a stepped cylindrical shape and comprising:
• an outer part provided with a recess in the center for fitting of the O-ring;
• and
• a stepped cylindrical internal part arranged adjacent to the cylindrical lock, the stepped cylindrical internal part having three internal angles:
• (β) in a range of 23° to 27°, (θ) in a range of 33° to 37° and (γ) in a range of 58° to 62°;
• a needle body made of ferritic stainless steel alloy material, plasma nitrided, with physical vapor deposition surface treatments of diamond-like carbon, the needle body having an external staggered cylindrical shape with upper and lower recesses each configured to receive an O-ring, the needle body comprising a cylindrical internal channel and a circular-shaped outlet hole;
• and
• a sieve having a disc shape, the sieve made of stainless steel material and comprising holes having a diameter in a range of 0.4 mm to 0.6 mm, the sieve fitted to the outlet hole of the needle body;
• wherein the spring is positioned internally to the fuel inlet channel, the recess of the needle, and the coil;
• the cylindrical-shaped recess of the housing forms a flap of the needle body;
• and the needle body externally surrounds the needle, the cylindrical guide ring, the cylindrical lock, the seat, and the sieve.