The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2010
Filed:
Jul. 23, 2008
Yusuke Kihara, Hitachinaka, JP;
Yoshihiro Sukegawa, Hitachi, JP;
Kenji Tsuchita, Hitachiota, JP;
Sumie Tsuchita, Legal Representative, Hitachiota, JP;
Hiroshi Fujii, Tokyo, JP;
Atsushi Sekine, Hitachinaka, JP;
Yusuke Kihara, Hitachinaka, JP;
Yoshihiro Sukegawa, Hitachi, JP;
Kenji Tsuchita, Hitachiota, JP;
Sumie Tsuchita, legal representative, Hitachiota, JP;
Hiroshi Fujii, Tokyo, JP;
Atsushi Sekine, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Improvement of combustion stability in retard ignition at the time of starting in a cold state, high output in a full throttle condition, reduction of smoke, and prevention of wear of the cylinder liner caused by oil dilution, are to be attained. In connection with the flow of fuel into each hole and a fuel inflow angle which is determined by the axis of each hole formed in a plate, the fuel inflow angle of an hole directed to a spark plug is set large to reduce an effective flow path area, thereby making the amount of fuel in the hole smaller than in other holes. A shallow cavity is formed in a piston crown face and a small prominence confronting fuel sprays is formed within the cavity.