Title:
FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO/2014/050505
Kind Code:
A1
Abstract:
A fuel injection valve in which a valve body (13) is configured by: an annular valve section (13a) facing a valve seat (7); and a connecting tube section (13b) connected to the rear end of this valve section (13a) and to which a connecting end section (14a) of the front section of a connecting rod (14) fits and is joined. The connecting tube section (13b) has a journal section (13b1) that slidably fits on to the inner circumferential surface of a valve housing (3); an outside fuel passage (57) is formed in an annular shape so as to encompass the valve section (13a) and has a first cutout (50) that connects the outside fuel passage (57) to the fuel chamber (55), provided in the connecting tube section (13b); the inside of the valve section (13a) is formed into a tubular inside fuel passage (56) that connects to a nozzle hole (9) when the valve body (13) is open; and a second cutout (52) that connects this inside fuel passage (56) to the fuel chamber (55) is provided in the connecting end section (14a). As a result, the fuel passage around the valve body can be increased and the fuel injection amount can be increased, without increasing the open stroke of the valve body.
Inventors:
HONJO TAKUYA (JP)
Application Number:
PCT/JP2013/074082
Publication Date:
April 03, 2014
Filing Date:
September 06, 2013
Export Citation:
Assignee:
KEIHIN CORP (JP)
International Classes:
F02M61/18; F02M21/02; F02M51/06; F02M51/08; F02M61/10
Foreign References:
| JP2006077777A | 2006-03-23 | |||
| JP2006125202A | 2006-05-18 |
Attorney, Agent or Firm:
OCHIAI Takeshi et al. (JP)
Ochiai 健 (JP)
Ochiai 健 (JP)
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