Method for controlling the charging pressure at a...

Details Method for controlling the charging pressure at a... Method for controlling the charging pressure at a...

2005-04-26

2005-04-26

Trieu, Thai-Ba (Department: 3748)

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

C060S605100, C123S315000

Reexamination Certificate

active

06883319

ABSTRACT:
A multicylinder internal combustion engine with an exhaust-driven turbocompressor and with a divided exhaust gas flow has at least two exhaust valves (2,3) and one intake valve per cylinder. A first exhaust valve (2) is connected to a first exhaust manifold which leads to the turbine of the compressor, while a second exhaust valve (3) is connected to a second exhaust manifold which opens downstream of the turbine. The charging pressure in the engine can be regulated by virtue of the opening periods of the exhaust valves (2,3) being varied in relation to one another in order to adapt the flow through the exhaust turbine to a value which provides the desired charging pressure in the engine. By opening the second exhaust valve (3) increasingly earlier, an increasingly lower charging pressure can be achieved.

REFERENCES:
patent: 4916903 (1990-04-01), Holmer
patent: 6595183 (2003-07-01), Olofsson
patent: 3821935 (1990-02-01), None
patent: 2185286 (1987-07-01), None
patent: 57163121 (1982-10-01), None
patent: 05263671 (1993-10-01), None
patent: 507030 (1998-03-01), None
patent: 512943 (2000-06-01), None

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