Vehicle-body inclination device and double-layer three-way valve used in vehicle-body inclination device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 20, 2015
Grant Date -
Mar 6, 2014
app pub date -
May 9, 2012
filing date -
May 9, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A carriage-body inclination device (30) has individual inclination units (112, 113) that are provided corresponding to air springs (22, 23), and a control unit (110). The individual inclination unit (112) can sufficiently execute supply or release of air to or from the air spring (22) by driving a control valve (40) and a large-capacity valve (170) using a height difference value which is a difference between a height instruction value provided by the control unit (110) and a height value obtained from a link-lever mechanism (24). The control valve (40) has a two-layer structure of a fixed sleeve (91), a control sleeve (90), and a spool (80). The control sleeve (90) is moved and driven by the link-lever mechanism (24) and a rotation-translation conversion mechanism (44). The spool (80) is moved and driven by a spool actuator (120) according to a set height value.
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