Title:
可変圧力室を有する燃料噴射ポンプ
Document Type and Number:
Japanese Patent JP2013531184
Kind Code:
A
Abstract:
The present invention relates to a fuel injection pump having a variable pressure chamber which can adjust a fuel injection timing according to each engine load with a simple structure and a lower manufacture cost compared to the conventional injection pump without a separate apparatus for moving a barrel as well as not modifying a shape of a plunger. The fuel injection pump having the variable pressure chamber further includes a pressure adjustment means including a contact plug of which lower portion is inserted and installed in the upper cover; a cylinder of which lower portion is inserted and installed in the contact plug and having the variable pressure chamber formed inside thereof; a main fuel pressing hole formed in the upper cover and the barrel to connect the variable pressure chamber of the cylinder and a plunger insertion hole of the barrel; a piston installed in the variable pressure chamber of the cylinder to enable an upward and downward sliding motion thereof; and a manual pressure adjustment unit installed on an upper portion of the cylinder to enable a vertical height adjustment to elastically support the upper portion of the piston.
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Inventors:
Park, Duk-jin
Kim, Jute
Kim Dong-Hun
Yun, Uk-Hyun
Kim, Byung-suk
Park, Taeyeon
Ha, Eun
No, Bomb-Young
Kim, Jute
Kim Dong-Hun
Yun, Uk-Hyun
Kim, Byung-suk
Park, Taeyeon
Ha, Eun
No, Bomb-Young
Application Number:
JP2013520631A
Publication Date:
August 01, 2013
Filing Date:
March 21, 2011
Export Citation:
Assignee:
HYUNDAI HEAVY INDUSTRIES CO., LTD.
International Classes:
F02M59/20; F02M59/28
Domestic Patent References:
| JP2003065186A | 2003-03-05 | |||
| JPH0270972A | 1990-03-09 | |||
| JP2007127002A | 2007-05-24 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki