Hydrostatic drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 23, 2016
Grant Date -
Nov 21, 2013
app pub date -
Nov 11, 2011
filing date -
Dec 1, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic additional drive includes a hydraulic or having working ports configured to be connected to a pump via a high pressure branch and a low pressure branch. The hydraulic motor further includes a purging port to which a feed pressure is configured to be applied to set a “free-wheel mode” while the working ports are connected to a tank. The pressure at the purging port is limited to a comparatively low value between the feed pressure and the tank pressure by a pre-charging valve integrated into the hydraulic motor. The pre-charging valve is arranged in a free-wheel duct which hydraulically connects the purging port to one of the working ports.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- B60K Class
- 13.60 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 23, 2027 |
