Exhaust arrangement for an internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 24, 2013
Grant Date -
Aug 18, 2011
app pub date -
Oct 16, 2009
filing date -
Oct 17, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An internal combustion engine including an exhaust arrangement comprises a first exhaust duct and a second exhaust duct. A valve arrangement preferably comprising separate first and second exhaust valves associated with each cylinder, to selectively direct exhaust from engine to the first exhaust duct during a first exhaust period, and to the second exhaust duct during a subsequent second exhaust period. A turbine having an inlet is connected to the first exhaust duct; and a compressor drivingly connected to and driven by the turbine, has an inlet connected to second duct. The compressor, driven by the turbine extracting energy from the exhaust, reduces the back pressure in the exhaust system reducing pumping losses, with the second duct bypassing the turbine in the second exhaust period such that the turbine also does not increase the exhaust back pressure at least during the main second exhaust phase.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully