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Patent Searching and Data


Title:
FUEL INJECTION CONTROLLER OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2009/038155
Kind Code:
A1
Abstract:
A tubular outer needle (42) is accommodated slidably in the body (41) so as to connect/disconnect a nozzle chamber (R1) and a suction chamber (R2) and to section the nozzle chamber (R1) and a control chamber (R3). A rodlike inner needle (43) is accommodated in the outer needle (42) to slide coaxially therewith and its distal end intrudes into the suction chamber (R2) at the lowermost position thereof. In the range of small inner lift, an annular clearance is formed between the inner circumferential surface of the inner sidewall of the suction chamber (R2) and the outer circumferential surface of the outer sidewall at the distal end of the inner needle (43). The outer and inner lifts are regulated so that both increase simultaneously from zero when fuel injection is started, and when fuel injection is ended, the outer lift returns to zero, thereafter the inner lift returns to zero.

Inventors:
HABA YUKI (JP)
Application Number:
PCT/JP2008/066908
Publication Date:
March 26, 2009
Filing Date:
September 11, 2008
Export Citation:
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Assignee:
TOYOTA MOTOR CO LTD (JP)
HABA YUKI (JP)
International Classes:
F02M61/10; F02D41/04; F02D41/40; F02M47/00; F02M61/18
Domestic Patent References:
WO2005040594A12005-05-06
WO2005052352A12005-06-09
Foreign References:
JPS5694857U1981-07-28
JPS63248966A1988-10-17
JP2007132249A2007-05-31
JP2002276509A2002-09-25
DE102005060656A12007-06-21
DE102006000268A12006-12-07
EP1519032A12005-03-30
DE102005062859A12007-07-12
Other References:
See also references of EP 2189649A4
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (NAGOYA-KS Building1-18, Taiko 3-chome,Nakamura-ku, Nagoya-shi, Aichi, JP)
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