High flow fuel injector

A high flow fuel injector characterized by being equipped with a connector housing (11), in a cylindrical shape, injected in polymeric material and containing a projection that surrounds the connector (132) of the coil body (12), made of metallic material, predominantly cylindrical in shape, with a stepped profile on the outside and with a through channel on the inside, containing four parts, the first part of the coil body (121) being cylindrical and having a fuel inlet channel (1211) on its upper face and its initial outer diameter being reduced, forming the recess of the coil body (1212) with rounded chamfers in the diameter reduction for insertion of the sealing ring, the second part of the coil body (122) is cylindrical, has a convex lateral surface (1221) and an internal channel whose diameter is reduced by the taper in the internal channel A (1222), resulting in the internal channel with reduced diameter A (1223), the third part of the coil body (123), in the shape of an incomplete cylinder, has a flat face on the coil body (1234) in the longitudinal direction, with a chamfer on its upper part, has, in the continuation of the reduced diameter internal channel A (1223), tapering in the internal channel B (1231) inside it, which connects to the reduced diameter internal channel B (1232), which connects to the taper in the internal channel C (1233), and the fourth part of the coil body (124), also cylindrical in shape, has, on its upper face, on the same side as the third part of the coil body (123), a flat face on the coil body (1234), a connector input channel (1241), with an inclination of angle α2 (α2), between 15° and 25°, preferably 20°, inside, it has an internal channel of reduced diameter C (1242), where the spring (16) is positioned, which connects to the internal channel of reduced diameter D (1243), which is connected to the needle fitting gap (1245), it also has an internal gap for coil A (1244), with a chamfer angle α1 (α1), between 0.5° and 2°, preferably 1.5°, internal space for the needle body (1246), and internal thread (1247);

• equipped with a coil and connector assembly (13), which contains a coil (131) and a connector (132), the coil (131) is cylindrical in shape and has a central hole A (1311), a central hole B (1313), and a projection with the connector passing through (1312), which has a tear in the coil (1314), and the connector (132), made of metallic material, is formed by two rods, each one having a short part of the connector (1321) and a long part of the connector (1322), with an inclination between 35° and 55°, preferably 45°, the coil and connector assembly (13) is fitted into the internal part of the coil body (12), in the internal space for the coil (1244), and the connector (132) passes through the connector input channel (1241) so that it is exposed, being surrounded by the housing (11);
• equipped with a needle (14) made of metallic material, with a cylindrical shape and stepped profile, which contains a central hole with a recess (141) on its upper face, chamfer A (142) and chamfer B (143), on the upper and lower edges, contains a central body of the needle (144), with a smaller diameter than the initial one, chamfer C (145), with an inclination of angle α4 (α4) and chamfer D (147) on the lower part of the central body of the needle (144), and this has the fuel outlet holes (146), in diametrically opposite positions and with an inclination of angle α3 (α3) in relation to the central axis, the needle (14) is positioned inside the central channel of the needle body (1523);
• and provided with a needle body (15), made of metallic material, with a cylindrical shape and a stepped profile, which contains, for the purposes of description, four parts, the first part of the needle body (151) has, internally, a central hole in the needle body (1511), a projection in the central hole in the needle body (1512) that leads to the convex internal channel (1513), which has its diameter reduced in the internal channel of reduced diameter E (1514), and, externally, an external thread (1515) and chamfers on the upper and lower external edges, the second part of the needle body (152) has an octagonal ring (1521) on its external part, below the external thread (1515), and on its inside, in the continuation of the internal channel of reduced diameter E (1514), a taper in the central hole in the needle body (1522), with an angle α5 (α5), and a central channel in the needle body (1523), the third part of the needle body (153) has a smaller diameter than the second part of the needle body (152), external chamfers in the upper and lower parts, and a recess in the needle body (1531) for inserting a sealing ring, and the fourth part of the needle body (154) has rounded chamfers E (1541) on its exterior and an exit from the central channel of the needle body (1542) on the lower face with chamfers.