The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2015
Filed:
Mar. 31, 2011
Masato Yamada, Obu, JP;
Yoichi Kobane, Kuwana, JP;
Naofumi Adachi, Takahama, JP;
Tsukasa Yamashita, Kariya, JP;
Masato Yamada, Obu, JP;
Yoichi Kobane, Kuwana, JP;
Naofumi Adachi, Takahama, JP;
Tsukasa Yamashita, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A fuel injection device () includes a control body () provided with an injection hole (), a nozzle needle () that opens or closes the injection hole (), a pressure control chamber () controlling a movement of the nozzle needle (), an inflow channel () through which high-pressure fuel is introduced to the pressure control chamber (), an outflow channel () through which the fuel from the pressure control chamber () is discharged, and a floating plate () that opens or closes the inflow channel (). In the fuel injection device (), the control body () includes a cylinder () defining the pressure control chamber () in a radial direction thereof, and an inner wall portion () of the cylinder () includes a communication groove () which causes an inflow chamber () that is provided within the pressure control chamber () at a side of the inflow channel () relative to the floating plate (), to communicate with a back pressure chamber () that is provided within the pressure control chamber () at a side of the nozzle needle () relative to the floating plate ().