Cooling system for a supercharged internal-combustion engine

Details Cooling system for a supercharged internal-combustion engine Cooling system for a supercharged internal-combustion engine

1994-01-10

1995-03-07

Bertsch, Richard A.

Internal-combustion engines

Charge forming device

Supercharger

123542, 60599, F02B 3300

Patent

active

053948548

ABSTRACT:
A cooling system for a supercharged internal-combustion engine has a high-temperature and a low-temperature circulating system, in which two charge air coolers, through which coolant of different temperature levels flows, are provided for cooling the charge air in two stages. The high-temperature circulating system comprises a main branch with the internal-combustion engine and a high-temperature recooler which is connected in series with it. So that the total quantity of coolant may be kept low and a high degree of heat exchange can be achieved while the arrangement of the pipes is simple, the coolant quantity flowing out of the secondary circulating system is admixed to a coolant flow leading to the internal-combustion engine, and the total coolant flow flowing out of the internal-combustion engine is then guided to the high-temperature recooler. The coolant quantity required in the secondary branch is branched off the coolant flow flowing to the internal-combustion engine which flows away from the high-temperature recooler, and to which coolant quantities are possibly admixed that flow away from the high-temperature charge air cooler and from the low-temperature charge air cooler. The low-temperature circulating system comprises a low-temperature recooler with a series-connected low-temperature charge air cooler.

REFERENCES:
patent: 3439657 (1969-04-01), Gratzmuller
patent: 4317439 (1982-03-01), Emmerling
patent: 4325219 (1982-04-01), Stang et al.
patent: 4563983 (1986-01-01), Hayashi et al.

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