Title:
高圧ポンプ
Document Type and Number:
Japanese Patent JP4941688
Kind Code:
B2
Abstract:
A fuel gallery has a first opening port communicated to a variable volume chamber formed at a lower side of a plunger and a second opening port communicated to a fuel pressurizing chamber formed at an upper side of the plunger. A connecting tube member is provided in the fuel gallery for communicating the first and second opening ports with each other. During a fuel amount adjusting stroke, for example, in which the plunger is moved in an upward direction, a part of excessive fuel from the fuel pressurizing chamber is supplied to the variable volume chamber through the connecting tube member and the remaining part of the excessive fuel is discharged from the connecting tube member into the fuel gallery through a communication through-hole formed in the connecting tube member.
Inventors:
Hiroshi Inoue
Application Number:
JP2010174292A
Publication Date:
May 30, 2012
Filing Date:
August 03, 2010
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M59/44; F02M55/00; F02M55/02; F02M59/02
Domestic Patent References:
| JP2008525713A | ||||
| JP11303755A | ||||
| JP55120877U | ||||
| JP8261097A | ||||
| JP2000240530A | ||||
| JP2008002361A | ||||
| JP2006200407A |
Attorney, Agent or Firm:
Masaki Hattori