Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Two phase exhaust for internal combustion engine

Patent ·
OSTI ID:1032640

An internal combustion engine having a reciprocating multi cylinder internal combustion engine with multiple valves. At least a pair of exhaust valves are provided and each supply a separate power extraction device. The first exhaust valves connect to a power turbine used to provide additional power to the engine either mechanically or electrically. The flow path from these exhaust valves is smaller in area and volume than a second flow path which is used to deliver products of combustion to a turbocharger turbine. The timing of the exhaust valve events is controlled to produce a higher grade of energy to the power turbine and enhance the ability to extract power from the combustion process.

Research Organization:
Deere & Company (Moline, IL)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42422
Assignee:
Deere & Company (Moline, IL)
Patent Number(s):
8,065,878
Application Number:
12/045,390
OSTI ID:
1032640
Country of Publication:
United States
Language:
English