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:
Jun. 07, 2005
Filed:
Jul. 15, 2002
Hikari Tsuchiya, Gotenba, JP;
Tetsuo Ogata, Shizuoka, JP;
Kazuteru Mizuno, Numazu, JP;
Kazunori Takikawa, Numazu, JP;
Yoshiyuki Serizawa, Mishima, JP;
Izumi Imura, Shizuoka, JP;
Hiroyuki Nishizawa, Numazu, JP;
Hikari Tsuchiya, Gotenba, JP;
Tetsuo Ogata, Shizuoka, JP;
Kazuteru Mizuno, Numazu, JP;
Kazunori Takikawa, Numazu, JP;
Yoshiyuki Serizawa, Mishima, JP;
Izumi Imura, Shizuoka, JP;
Hiroyuki Nishizawa, Numazu, JP;
Usui Kokusai Sangyo Kaisha Ltd., Shizuoka, JP;
Abstract
A fuel pressure pulsation suppressing system of a fuel piping system for a gasoline engine having a plurality of cylinders disposed in a 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 sectional area of the flow passage of the connection pipe or the supply pipe or below.