초록 ▼

A fuel injector having a fuel flow rate set by injector stroke is disclosed. The fuel injector includes a housing having a hollow passage and a seat disposed at one end of the hollow passage. A needle is slidably mounted in the hollow passage. The needle is operable between a first position wherein

A fuel injector having a fuel flow rate set by injector stroke is disclosed. The fuel injector includes a housing having a hollow passage and a seat disposed at one end of the hollow passage. A needle is slidably mounted in the hollow passage. The needle is operable between a first position wherein the needle engages the seat and a second position wherein the needle is disposed away from the seat. A first flow area is formed by a minimum frusto-conical area between the seat and the needle when the needle is disposed away from the seat. The fuel injector also includes an opening at the one end of the hollow passage proximate to the seat. The opening has a second flow area larger than the first flow area. A method for setting a gaseous fuel injector flow rate with injector stroke is also disclosed.

대표청구항 ▼

A fuel injector having a fuel flow rate set by injector stroke is disclosed. The fuel injector includes a housing having a hollow passage and a seat disposed at one end of the hollow passage. A needle is slidably mounted in the hollow passage. The needle is operable between a first position wherein

A fuel injector having a fuel flow rate set by injector stroke is disclosed. The fuel injector includes a housing having a hollow passage and a seat disposed at one end of the hollow passage. A needle is slidably mounted in the hollow passage. The needle is operable between a first position wherein the needle engages the seat and a second position wherein the needle is disposed away from the seat. A first flow area is formed by a minimum frusto-conical area between the seat and the needle when the needle is disposed away from the seat. The fuel injector also includes an opening at the one end of the hollow passage proximate to the seat. The opening has a second flow area larger than the first flow area. A method for setting a gaseous fuel injector flow rate with injector stroke is also disclosed. US-5124537, 19920600, Chandler et al.; US-5124539, 19920600, Krichever et al.; US-5132523, 19920700, Bassett; US-5153417, 19921000, Sakai et al.; US-5180904, 19930100, Shepard et al.; US-5196696, 19930300, Lindacher; US-5198650, 19930300, Wike, Jr.; US-5212370, 19930500, Wittensoldner et al.; US-5216231, 19930600, Ouchi; US-5221832, 19930600, Collins, Jr. et al.; US-5250790, 19931000, Metlitsky et al.; US-5262627, 19931100, Shepard; US-5280162, 19940100, Marwin; US-5324924, 19940600, Cai et al.; US-5406063, 19950400, Jelen, 235/472.01; US-5420411, 19950500, Salatto, Jr. et al.; US-5591953, 19970100, Rockstein et al., 235/472.01; US-6286760, 20010900, Schmidt et al., 235/462.32