03-08-2017 дата публикации
Номер: US20170218908A1
Принадлежит:
In a fuel injection valve that is inserted along a shape of an attachment hole formed in a cylinder head and that directly injects fuel supplied from a fuel supply section into a combustion chamber via a stepped section, the fuel supply section includes: a fuel cup, an end of which has a tapered section; a seal ring that prevents leakage of the fuel to the outside; and a support ring that supports the seal ring, the stepped section includes: a nozzle that injects the fuel into the combustion chamber; and an attachment shaft that has a larger radius than the nozzle, and a first gap in an axial direction between the tapered section and the support ring is larger than a second gap in the axial direction between the attachment hole and the attachment shaft. 11021201301. A fuel injection valve () that is inserted along a shape of an attachment hole () formed in a cylinder head () and that directly injects fuel supplied from a fuel supply section (A) into a combustion chamber () via a stepped section (B) , wherein{'b': '1', 'the fuel supply section (A) includes{'b': 11', '111, 'a fuel cup (), an end of which has a tapered section ();'}{'b': '12', 'a seal ring () that prevents leakage of the fuel to outside; and'}{'b': 13', '12, 'a support ring () that supports the seal ring (),'}{'b': '1', 'the stepped section (B) includes{'b': 15', '30, 'a nozzle () that injects the fuel into the combustion chamber (); and'}{'b': 16', '15, 'an attachment shaft () that has a larger radius than the nozzle (), and'}{'b': 1', '1', '111', '13', '2', '1', '21', '16, 'a first gap (G) in an axial direction (D) between the tapered section () and the support ring () is larger than a second gap (G) in the axial direction (D) between the attachment hole () and the attachment shaft ().'}2. The fuel injection valve according to claim 1 , wherein{'b': 1', '1', '111', '111', '13', '13, 'the first gap (G) is a distance in the axial direction (D) between an end of the tapered section () on a support ring ...
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