Fluid pressure control system for hydraulic excavators
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 1, 1997
Grant Date -
N/A
app pub date -
Sep 6, 1995
filing date -
Sep 6, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluid pressure control system for hydraulic excavators includes a load sensing valve in communication with first and second pressure compensator valves via a load sensing line and responsive to a load sensing pressure developed in the load sensing line for regulating the discharge volume of a working fluid and a swing torque regulator lying midway of the load sensing line between the load sensing valve and the first pressure compensator valve to selectively allow and inhibit a fluid communication between the first pressure compensator valve and the load sensing valve depending on the pressure of a pilot fluid.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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