Title:
FUEL PRESSURE PULSATION SUPPRESSING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2003/008796
Kind Code:
A1
Abstract:
A fuel pressure pulsation suppressing system of a fuel piping system for a gasoline engine having a plurality of cylinders disposed in straight V−shape or horizontal opposed shape with delivery pipes for distributing fuel to the cylinders of return−less type without a return circuit to a fuel tank, wherein the cross section of at least one of communication pipes forming the delivery pipes forms a flexible absorbing face, an orifice portion for damping pressure pulse wave caused by fuel injection is installed near a connection part between at least one delivery pipe and a supply pipe or a connection pipe, and the cross sectional area of the flow passage of the orifice should desirably be 0.2 times the cross sectional area of the flow passage of the connection pipe or the supply pipe or below.
Inventors:
TSUCHIYA HIKARU (JP)
OGATA TETSUO (JP)
MIZUNO KAZUTERU (JP)
TAKIKAWA KAZUNORI (JP)
SERIZAWA YOSHIYUKI (JP)
IMURA IZUMI (JP)
NISHIZAWA HIROYUKI (JP)
OGATA TETSUO (JP)
MIZUNO KAZUTERU (JP)
TAKIKAWA KAZUNORI (JP)
SERIZAWA YOSHIYUKI (JP)
IMURA IZUMI (JP)
NISHIZAWA HIROYUKI (JP)
Application Number:
PCT/JP2002/007140
Publication Date:
January 30, 2003
Filing Date:
July 15, 2002
Export Citation:
Assignee:
USUI KOKUSAI SANGYO KK (JP)
TSUCHIYA HIKARU (JP)
OGATA TETSUO (JP)
MIZUNO KAZUTERU (JP)
TAKIKAWA KAZUNORI (JP)
SERIZAWA YOSHIYUKI (JP)
IMURA IZUMI (JP)
NISHIZAWA HIROYUKI (JP)
TSUCHIYA HIKARU (JP)
OGATA TETSUO (JP)
MIZUNO KAZUTERU (JP)
TAKIKAWA KAZUNORI (JP)
SERIZAWA YOSHIYUKI (JP)
IMURA IZUMI (JP)
NISHIZAWA HIROYUKI (JP)
International Classes:
F02M55/04; F02M69/46; F02M63/00; (IPC1-7): F02M55/02
Foreign References:
| JPH0868369A | 1996-03-12 | |||
| JPH08144889A | 1996-06-04 | |||
| EP0785357A1 | 1997-07-23 | |||
| JPH08326622A | 1996-12-10 | |||
| JPH112164A | 1999-01-06 | |||
| JP2000320423A | 2000-11-21 | |||
| JP2000329030A | 2000-11-28 | |||
| GB2346931A | 2000-08-23 | |||
| EP0995902A2 | 2000-04-26 | |||
| JP2000073907A | 2000-03-07 | |||
| JPH08246984A | 1996-09-24 |
Attorney, Agent or Firm:
Ninomiya, Masataka (Nihonbashikayabacho 1-chome Chuo-ku, Tokyo, JP)
Download PDF:
Previous Patent: ACCUMULATING FUEL INJECTOR
Next Patent: FUEL INJECTOR WITH LOCKING PRESSURE COMPENSATION
Next Patent: FUEL INJECTOR WITH LOCKING PRESSURE COMPENSATION