Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1976-11-29
1978-08-22
Casaregola, Louis J.
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
60 3908, F02B 3700
Patent
active
041079272
ABSTRACT:
A turbocharged internal combustion engine system including a liquid-cooled internal combustion engine, a heat exchanger for cooling the liquid, a pump for pumping cooled liquid from the heat exchanger to the engine, and a turbocharger including a rotary turbine and a rotary compressor, a housing containing the turbine and the compressor, a shaft interconnecting the turbine and the compressor and bearings journalling the shaft within the housing between the turbine and compressor. Exhaust gases from the engine are directed through the turbine to drive the same and air from the compressor is directed to the engine. A liquid passage is located in the turbocharger housing and is operatively interposed between the turbine and the bearing. The passage has a lower inlet and an upper outlet and liquid coolant from the engine is directed to the inlet. Coolant from the output is directed to the heat exchanger or other suitable compartment in the engine coolant system so as to allow flow while the engine is operating and under the following conditions. Thermosiphoning of the coolant will occur through the passage when the engine is not operative, resulting in ebullient cooling of the housing immediately adjacent the bearings when the engine is not operating. As a result, thermal damage to the bearings is prevented and coking of the residual oil on the inside walls of the housing is also prevented.
REFERENCES:
patent: 2822974 (1958-02-01), Mueller
patent: 2918207 (1959-12-01), Moore
patent: 3740170 (1973-06-01), Miller
patent: 3827236 (1974-08-01), Rust
Gordon, Jr. Phillip B.
Hunt Keats E.
Casaregola Louis J.
Caterpillar Tractor Co.
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