초록 ▼

An exhaust gas turbocharging system for an internal combustion engine including a turbine portion with adjustable turbine geometry for powering a compressor portion which delivers a pressurized charge air mass flow to the internal combustion engine air intake. A charge regulator controls the turbine

An exhaust gas turbocharging system for an internal combustion engine including a turbine portion with adjustable turbine geometry for powering a compressor portion which delivers a pressurized charge air mass flow to the internal combustion engine air intake. A charge regulator controls the turbine geometry so that the cross-section of exhaust gas flow to the turbine portion is decreased with an increased working load of the internal combustion engine. It is further proposed that at least one heat exchanger is exposed to the charge air circuit so that heated air is fed thereto for heating such as to heat engine lubricating oil.

대표청구항 ▼

[ What is claimed is:] [1.] An improved system for the operation of an internal combustion engine (1) having a turbocharger (5) including an exhaust gas receiving turbine portion (7) which has an adjustment mechanism for changing the cross-sectional configuration of the inlet to the turbine and incl

[ What is claimed is:] [1.] An improved system for the operation of an internal combustion engine (1) having a turbocharger (5) including an exhaust gas receiving turbine portion (7) which has an adjustment mechanism for changing the cross-sectional configuration of the inlet to the turbine and including a compressor portion (8) operably connected to the turbine portion for delivering a mass flow air charge (11) to an air intake assembly (2) of the internal combustion engine (1) which includes an air charge line (4), for delivering an amount of fuel as required by the internal combustion engine (1) to the charge air in conformity with the instantaneous internal combustion engine (1) air flow and an actuator (12) which adjusts the inlet adjusting mechanism of the turbine, whereby the cross-section of exhaust gas flow to the turbine (7) is reduced in response to an increasing working load of the engine, the improvement comprises: a thermoregulator (9) which monitors a thermal balance of the quantity of heat to be generated by the internal combustion engine (1) and required by operation of the engine at particular settings of the adjustable cross-sectional inlet of the turbine by the actuator (12), whereby the cross-sectional configuration for flow into the turbine (7) is reduced to increase turbocharger speed and its heat delivery, a heat exchanger is positioned to transfer heat from the mass air charge (11) to a separate thermal system for a thermally related application, a flow control valve (24) at the intake of the heat exchanger controlled by the thermoregulator (9) to determine a desirable air flow through the heat exchanger, a bypass line (17) which circumvents the air flow through the heat exchanger, and a bypass valve (25) controlling flow through the bypass line.