Title:
噴流の拡散が低減した、特に軸線から外れた噴射流を有する燃料噴射装置
Document Type and Number:
Japanese Patent JP3625834
Kind Code:
B2
Abstract:
Significant improvement in limiting the dispersion of an injected fuel stream is obtained by constructing the tip end of the needle valve (21) to have a proximal portion and a distal portion wherein the proximal portion is a surface (52) in the form of a segment of an imaginary sphere that is geometrically defined by imaginary spaced-apart, parallel planes passing through such imaginary sphere, that surface of the proximal tip portion being that portion of said tip end that seats on and unseats from a frustoconical seat (32) as the valve is reciprocated, and the distal tip portion (56) is a frustoconical surface (54) extending tangentially from the proximal tip portion. Such limiting of the dispersion of the injected stream provides better targeting of the injected fuel.
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Inventors:
Roast Wow Woods
Henry sea dozier
Henry sea dozier
Application Number:
JP51339396A
Publication Date:
March 02, 2005
Filing Date:
October 16, 1995
Export Citation:
Assignee:
Siemens VDO Automotive Corporation
International Classes:
F02M51/06; F02M51/08; F02M61/18; (IPC1-7): F02M51/06; F02M51/08; F02M61/18
Domestic Patent References:
| JP1502766A | ||||
| JP6501087A |
Attorney, Agent or Firm:
Takuya Kuno
Toshiomi Yamazaki
Toshiomi Yamazaki