Power system and work machine using same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 20, 2005
Grant Date -
May 19, 2005
app pub date -
Nov 14, 2003
filing date -
Nov 14, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In the present invention, a power system includes at least one hydraulic cylinder that defines a first fluid volume and a second fluid volume separated from one another via a moveable plunger. Hydraulic power created within the hydraulic cylinder is converted to mechanical power by a fluid driven rotating device that is fluidly connected to at least the first fluid volume. A generator is attached to the fluid-driven rotating device, and produces electrical power that is stored in a power storage system including at least one of a battery and a capacitor. The stored electrical power can be supplied to an electric motor that is operable to power a hydraulic pump. The hydraulic pump supplies hydraulic fluid to the hydraulic cylinder. The power system of the present invention is a relatively inexpensive and efficient alternative to a power system including a diesel engine that can be a source of undesirable emissions, noise and vibrations.
First Claim
Family
International Classification(s)
- 2003 Application Filing Year
- F15B Class
- 216 Applications Filed
- 86 Patents Issued To-Date
- 39.82 % Issued To-Date
