Pumps – Motor driven – Fluid motor
Patent
1975-07-10
1977-03-01
Husar, C. J.
Pumps
Motor driven
Fluid motor
184 611, 277 3, 415112, F04B 1700
Patent
active
040099725
ABSTRACT:
A turbocharger system. One impeller of the turbocharger is driven by exhaust gas from an internal combustion engine, the other impeller functions as a pump to either compress air or to pump air in order to convey granular material. The impeller wheels are spaced and are mounted at the ends of a common shaft. The shaft is continuously lubricated, the spent lubricant being fed to an oil sump (crankcase). The specific improvement is a pressure bleed passageway between the chamber which receives engine exhaust pressure and the oil exhaust line. The bleed allows a portion of engine exhaust to pass to the sump exhaust line and assist oil flow to the sump by virtue of a pressure differential. This action, in turn, inhibits spent oil from passing through the seals and passing into either or both impellers when oil sump (crankcase) pressure is higher than atmospheric or where there are unfavorable to gravity flow conditions existing in the oil return line. Another portion of the system bleeds air from a high pressure reservoir to the interior of the oil sump line to assist spent oil flow to the sump.
REFERENCES:
patent: 2448717 (1948-09-01), Jeffcock
patent: 2575923 (1957-11-01), McMahan et al.
patent: 2921805 (1960-01-01), Shevchenko
patent: 2968499 (1961-01-01), Grobel
patent: 3017230 (1962-01-01), Meermans
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patent: 3600101 (1971-08-01), Oglesdy et al.
patent: 3722624 (1973-03-01), Buckland
patent: 3740170 (1973-06-01), Miller
Greer, Jr. Thomas J.
Husar C. J.
Wallace-Murray Corporation
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