Combustion engine system
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United States of America Patent
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May 19, 1987
Grant Date -
N/A
app pub date -
Sep 10, 1985
filing date -
Oct 1, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An internal combustion engine (11) including a turbocharger system comprising a supercharger compressor (16) connected to the intake manifold (12) of the engine driven by a first turbine (15) mounted on a common shaft (21) with the compressor and connected to the engine exhaust manifold (13). Surplus exhaust gas is passed to a second turbine (17) which drives an electric generator (18) for generating power to energize auxiliary equipment such as an electric motor (20). The loading and unloading of the generator is controlled by sensor and switch means (25, 19) in response to torque output demands, to thereby reduce the pressure ratio over the second turbine with consequent increase in back pressure and thus increase the pressure ratio over the first turbine with consequent boosting of the supercharging capacity of the compressor upon demand for increased torque output of the engine. Conversely, the pressure ratio over the first turbine is decreased and the pressure ratio over the second turbine is increased at low torque output demand, such as high engine speed, to thereby boost the generating capacity of the generator.
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