Shovel having an engine equipped with a supercharger
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 17, 2017
Issued Date -
N/A
app pub date -
Aug 28, 2014
filing date -
Sep 5, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A shovel includes a boom cylinder that drives a boom and an arm cylinder that drives an arm. A hydraulic pump supplies operating oil to the boom cylinder and the arm cylinder. An engine is connected to the hydraulic pump and equipped with a supercharger. The engine is controlled to maintain a revolution speed within a certain definite range. A controller controls a rotating speed of the supercharger. The controller performs a process of increasing the rotating speed of the supercharger so as to increase a supercharging pressure generated by the supercharger before a hydraulic load is applied to the engine.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2014 Application Filing Year
- F02B Class
- 1127 Applications Filed
- 980 Patents Issued To-Date
- 86.96 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F02B Class
- 21.92 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 17, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 17, 2029 |
