Title:
内燃機関の燃料噴射制御装置
Document Type and Number:
Japanese Patent JP4331225
Kind Code:
B2
Abstract:
An outer needle valve (42) and an inner needle valve (43) face on back sides thereof an outer control chamber (R2) and an inner control chamber (R3), which are independent of each other, respectively. An outer fuel outflow passage (C4) and an inner fuel outflow passage (C5) for causing fuel to flow out from the outer control chamber (R2) and the inner control chamber (R3) respectively meet at a meeting portion (Y). A control valve (45) for rendering in communication/shutting off a fuel discharge passage (C6) for connecting the meeting portion (Y) to a fuel tank (T) is interposed in the fuel discharge passage (C6). An automatic valve (44) as an open/close valve for shutting off the outer fuel outflow passage (C4) when a rail pressure (Pcr) is equal to or lower than a predetermined value and rendering in communication the outer fuel outflow passage (C4) when the rail pressure (Pcr) is higher than the predetermined value is interposed in the outer fuel outflow passage (C4).
Inventors:
Yoshiki Nagane
Fumihiro Okumura
Shigeo Nomura
Fumihiro Okumura
Shigeo Nomura
Application Number:
JP2007102341A
Publication Date:
September 16, 2009
Filing Date:
April 10, 2007
Export Citation:
Assignee:
トヨタ自動車株式会社
株式会社デンソー
株式会社デンソー
International Classes:
F02M45/08; F02M47/00; F02M61/10; F02M61/18
Domestic Patent References:
| JP2002322970A | ||||
| JP2001153001A | ||||
| JP2003269282A | ||||
| JP2006161678A | ||||
| JP2007239735A |
Attorney, Agent or Firm:
Patent business corporation Prospec patent office
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