Negative pressure pump and cylinder head cover
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 7, 2017
Grant Date -
Mar 24, 2016
app pub date -
Sep 11, 2014
filing date -
Nov 22, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A negative pressure pump has: a housing; a rotating shaft having a shaft portion, and a supporting portion; a vane that is supported at the supporting portion so as to freely move reciprocally in a direction orthogonal to the rotating shaft, and that rotates integrally with the rotating shaft, and whose end portions slide on an inner wall surface, and that sections an interior of the housing into plural spaces; an intake portion that is formed in the housing; a discharging portion that is formed further toward a vane rotating direction downstream side than the intake portion; and a concave portion that is formed in a bottom surface between the discharging portion and a curved surface in a vane rotating direction, and that communicates with a circular hole, and guides the lubricant, that is moved by the vane, to the circular hole.
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