Title:
直接作動噴射弁
Document Type and Number:
Japanese Patent JP2004522058
Kind Code:
A
Abstract:
A directly actuated injection valve comprises a hollow valve housing, a valve member disposed within the hollow interior, a biasing mechanism, an actuator assembly and a passive hydraulic link assembly. The valve member is movable between a closed position and an open position for governing the flow of fuel into the combustion chamber of an internal combustion engine. The biasing mechanism, preferably a spring, biases the valve member in the closed position. The actuator assembly generates an opening force that acts against the valve spring to open the valve. The hydraulic link assembly is interposed between the valve member and the valve spring and the actuator assembly. The hydraulic link assembly transmits respective closing and opening forces to the valve member. The hydraulic link preferably comprises a piston disposed within a cylinder that is filled with a hydraulic fluid.
Inventors:
Welch, Alan
Lahad Ja, Irawan
Hebbes, michael
Lahad Ja, Irawan
Hebbes, michael
Application Number:
JP2002591653A
Publication Date:
July 22, 2004
Filing Date:
May 17, 2002
Export Citation:
Assignee:
Westport Research, Inc.
International Classes:
F02M51/00; F02D41/20; F02M21/02; F02M47/00; F02M47/04; F02M51/06; F02M61/08; F02M61/10; F02M61/16; F02M63/00; (IPC1-7): F02M51/00; F02M51/06; F02M61/10
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai