Title:
FUEL INJECTION CONTROLLER
Document Type and Number:
Japanese Patent JP3827003
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection controller preventing a collision between an extending/contracting part and a moving member, stabilizing fuel injection, improving reliability of the extending/contracting part, and reducing noise.
SOLUTION: When a piezoelectric actuator 51 contracts, the fuel injection controller 60 controls an electric discharge speed of a piezoelectric stack provided on the piezoelectric actuator 51 so that a contracting speed of the piezoelectric actuator 51 is a moving speed of a large diameter piston 52 in a piezoelectric actuator 51 direction or less. When the piezoelectric actuator 51 contracts, the piezoelectric actuator 51 and the large diameter piston 52 move in an integrated state. By this, when the piezoelectric actuator 51 stops contracting, collision of the large diameter piston 52 to the piezoelectric actuator 51 is prevented.
Inventors:
Kojima Showa
Application Number:
JP2002038446A
Publication Date:
September 27, 2006
Filing Date:
February 15, 2002
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M47/00; F02D41/20; F02M51/00; F02M61/20; H01L41/083; H01L41/09; (IPC1-7): F02M47/00; F02D41/20; F02M51/00; F02M61/20; H01L41/083; H01L41/09
Domestic Patent References:
| JP2002013452A | ||||
| JP2000154766A | ||||
| JP11354853A | ||||
| JP2019650A |
Attorney, Agent or Firm:
Masaki Hattori