Method and system for vacuum control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2017
Grant Date -
Dec 15, 2016
app pub date -
Aug 23, 2016
filing date -
Jan 16, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods and systems are provided for controlling and coordinating control of a post-catalyst exhaust throttle and an EGR valve to expedite catalyst heating. By closing both valves during an engine cold start, an elevated exhaust backpressure and increased heat rejection at an EGR cooler can be synergistically used to warm each of an engine and an exhaust catalyst. The valves may also be controlled to vary an amount of exhaust flowing through an exhaust venturi so as to meet engine vacuum needs while providing a desired amount of engine EGR.
First Claim
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International Classification(s)
- F02M:SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBU....
- B60T:VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BR....
- F01N:GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHIN....
- F02P:IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INT....
- F02B:INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENG....
- F02D:CONTROLLING COMBUSTION ENGINES
- F02G:HOT-GAS OR COMBUSTION- PRODUCT POSITIVE-DISPLaCEME....
- 2016 Application Filing Year
- F02M Class
- 1722 Applications Filed
- 1301 Patents Issued To-Date
- 75.56 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02M Class
- 0 % 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 | Feb 1, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 1, 2029 |
