US 9,810,188 B2
Fuel injection valve
Toshiya Chazono, Tokyo (JP); Kazuhiko Kawajiri, Tokyo (JP); and Takashi Yonezawa, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 14/130,598
Filed by Toshiya Chazono, Tokyo (JP); Kazuhiko Kawajiri, Tokyo (JP); and Takashi Yonezawa, Tokyo (JP)
PCT Filed Jun. 20, 2012, PCT No. PCT/JP2012/065748
§ 371(c)(1), (2), (4) Date Jan. 2, 2014,
PCT Pub. No. WO2013/021733, PCT Pub. Date Feb. 14, 2013.
Claims priority of application No. 2011-173070 (JP), filed on Aug. 8, 2011.
Prior Publication US 2014/0183286 A1, Jul. 3, 2014
Int. Cl. F02M 63/00 (2006.01); F02M 61/18 (2006.01)
CPC F02M 63/0033 (2013.01) [F02M 61/184 (2013.01); F02M 61/1833 (2013.01); F02M 61/1846 (2013.01); F02M 61/1853 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A fuel injection valve, comprising:
a valve seat comprising a fuel path and a valve seat portion therein;
a valve member comprising an abutment portion configured to sit on the valve seat portion, for opening and closing the fuel path through separation and contact of the abutment portion away from and with the valve seat portion;
an injection hole plate; and
a fuel chamber brought into communication with the fuel path, wherein:
the fuel chamber includes a slit-like injection hole for injecting a fuel, the slit-like injection hole extending through the injection hole plate from one surface of the injection hole plate to another surface of the injection hole plate, the slit-like injection hole having a length L in a long axis direction and a length S in a short axis direction, the length L being greater than the length S;
the injection hole has a slit-like shape for making fuel flows to collide against each other in the long axis direction of the injection hole to form a liquid film in a direction crossing the long axis direction;
the long axis direction of the slit-like injection hole and a wall surface of the fuel chamber are spaced apart from each other and approximately parallel to each other; and
a distance between the slit-like injection hole and the wall surface of the fuel chamber is D, the distance D being smaller than the length S of the slit-like injection hole in a short axis direction.