High-pressure fuel-feed pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 22, 1996
Grant Date -
N/A
app pub date -
Jun 23, 1995
filing date -
Jun 24, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A protruding portion is formed integrally on a lower portion of a cylinder so as to protrude from the cylinder. A seal member has a tubular shape with an end. A hole is disposed at the end. Around the hole, a lip portion made of resilient material is disposed. The seal member is mated to an outer peripheral wall of the protruding portion by press-fitting. The lip portion can thin a fuel-oil film covering an outer peripheral wall of a plunger. The amount of leakage of fuel or oil is reduced. Because the protruding portion can be formed compactly and of thick plate thickness by press-fitting the seal member into the protruding portion formed integrally with the cylinder, deformation during heat treatment of the cylinder can be reduced, and along with the, machining of a sliding hole becomes simple.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully