Combined engine braking and positive power engine lost motion valve actuation system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 2020
Grant Date -
Sep 4, 2014
app pub date -
May 12, 2014
filing date -
Jul 27, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system for actuating one or more engine valves for positive power operation and engine braking operation is disclosed. In a preferred embodiment, an exhaust valve bridge and intake valve bridge each receive valve actuations from two sets of rocker arms. Each valve bridge includes a sliding pin for actuating a single engine valve and an outer plunger disposed in the center of the valve bridge to actuate two engine valves through the bridge. The outer plunger of each valve bridge may be selectively locked to its valve bridge to provide positive power valve actuation. During engine braking, application of hydraulic pressure to the outer plungers may cause the respective valve bridges and outer plungers to unlock so that all engine braking valve actuations are provided from a rocker arm acting on one engine valve through the sliding pin.
First Claim
Family
International Classification(s)
- 2014 Application Filing Year
- F01L Class
- 446 Applications Filed
- 408 Patents Issued To-Date
- 91.48 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F01L Class
- 52.87 % this patent is cited more than
- 5 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 | Jun 1, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 1, 2032 |
