Title:
ACCUMULATOR FUEL INJECTION EQUIPMENT
Document Type and Number:
Japanese Patent JPH0942107
Kind Code:
A
Abstract:
To eliminate a responce delay and to reduce an impact load, when a needle valve is seated, by reducing the weight of a command piston.
A command piston 200, which transfers energizing force when a back pressure chamber 18 is connected to a needle valve 11, consists of a command piston outer part 20, which has a minimum length of slidable part necessary to at least insure oil tightness of the back pressure chamber, and a rod part 19, which is smaller in diameter and lighter in weight than the command piston outer part 20 and which forms a connecting part. With this contrivance, the weight of the command piston 200 can be reduced, the responce delay can be eliminated, and an impact load, when the needle valve is seated, can be reduced.
Inventors:
TSUZUKI SACHIHIRO
Application Number:
JP19314695A
Publication Date:
February 10, 1997
Filing Date:
July 28, 1995
Export Citation:
Assignee:
NIPPON SOKEN
International Classes:
F02M47/00; F02M47/02; F02M61/10; F02M61/20; (IPC1-7): F02M47/02; F02M47/00; F02M61/10; F02M61/20
Attorney, Agent or Firm:
Hirohiko Usui