燃料ガス噴射弁、デュアルフューエルガスエンジン及び燃料ガス噴射弁の噴射方法

Title:

燃料ガス噴射弁、デュアルフューエルガスエンジン及び燃料ガス噴射弁の噴射方法

Document Type and Number:

Japanese Patent JP5925104

Kind Code:

B2

Abstract:

A fuel gas injection valve according to the present invention includes: a holder (22) including a first injection hole (61) through which fuel gas is injected to produce premixed fuel, and a second injection hole (62) through which fuel gas is injected to produce diffusion fuel; a first needle valve (23) that slidably reciprocates in the holder (22) along an axial direction to open and close the first injection hole (61) and the second injection hole (62); and a second needle valve (25) having a sealing face (94) on the top thereof and a through-hole (91) provided along the axial direction at the central portion in a radial direction of the second needle valve (25), the sealing face being brought into contact with a needle valve seat (93) provided in the holder (22), the first needle valve (23) being slidably inserted into the through-hole, and the second needle valve (25) reciprocating in the holder (22) along the axial direction to prevent fuel gas from circulating to the first injection hole (61) and the second injection hole (62) when the sealing face (94) is in contact with the needle valve seat (93), and to allow the fuel gas to circulate to the first injection hole (61) or the second injection hole (62) when the sealing face (94) is separated from the needle valve seat (93).

More Like This:

WO/2017/076508

METHOD FOR CONTROLLING A FUEL INJECTOR FOR AN INTERNAL COMBUSTION ENGINE

Inventors:

Hiroyuki Ishida
Akihiro Miyanagi
Hiraoka Naodai
Shigeki Tanaka
Watanabe Sota
Koyuki Komada

Application Number:

JP2012232065A

Publication Date:

May 25, 2016

Filing Date:

October 19, 2012

Export Citation: