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:
Feb. 15, 2005
Filed:
Jul. 11, 2002
Kiyomi Kawamura, Nisshin, JP;
Yoshihiro Hotta, Nagoya, JP;
Yoshifumi Wakisaka, Aichi-gun, JP;
Kiyomi Nakakita, Nishikamo-gun, JP;
Kiyomi Kawamura, Nisshin, JP;
Yoshihiro Hotta, Nagoya, JP;
Yoshifumi Wakisaka, Aichi-gun, JP;
Kiyomi Nakakita, Nishikamo-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A fuel injection device is provided which can inject fuel by very high injection pressure and can realize favorable combustion and exhaust characteristics, and moreover, enables performance of fuel injection with arbitrary fuel injection patterns. In the fuel injection device, the protrusionis provided at a distal end portion of the piston control valvewhich is provided at the pressure intensifier, can change a practical opening area of the fuel flow pathto the cylinderin accordance with movement of the piston control valve, and can control inflow amounts of liquid fuel that is flowed into the cylinderby the piston control valve(does orifice control). Thus, control of injection rates and injection pressures of fuel that is injected from the fuel injection nozzleis enabled, and fuel injection patterns can be realized with an extremely high degree of freedom.