Exhaust gas turbocharger

Details Exhaust gas turbocharger Exhaust gas turbocharger

1979-07-03

1982-12-21

Koczo, Michael

Pumps

Motor driven

Fluid motor

60606, 415180, F01D 2512, F01D 2518

Patent

active

043647170

ABSTRACT:
An apparatus for turbocharging an internal combustion engine, and which is characterized by the ability to avoid excessive heat transfer to the bearings and any other heat sensitive components. In the preferred embodiment, the lubricating oil for the bearings in the turbocharger housing is directed through a passageway in the bearing shaft and is discharged onto the end wall of the bearing housing in a circular pattern, to thereby cool the end wall and minimize heat transfer from the turbine to the bearings in the housing. Also, the end wall of the bearing housing is spaced from the adjacent rear wall of the turbine housing to define a cooling air gap therebetween, and apertures are provided in the housing for permitting air to flow through the cooling gap to cool the opposing surfaces of the two adjacent walls and thereby minimize heat transfer therebetween. Still further, the turbocharger of the present invention may include an air duct for conveying a portion of the compressed air into the turbine housing, to thereby lower the temperature of the exhaust gases and thus also the temperature of the turbine.

REFERENCES:
patent: 1953540 (1934-04-01), Ogden
patent: 2173489 (1939-09-01), Voigt
patent: 2442579 (1948-06-01), Auger
patent: 2474615 (1949-06-01), Busquet
patent: 2646210 (1953-07-01), Kohlmann
patent: 2918207 (1959-12-01), Moore
patent: 2938659 (1960-05-01), Judson
patent: 3004806 (1961-10-01), Schinnerer
patent: 3094271 (1963-06-01), Greenwald
patent: 3411706 (1968-11-01), Woolenweber
patent: 4018053 (1977-04-01), Rudert et al.
patent: 4101241 (1978-07-01), Kasuya
patent: 4157881 (1979-06-01), Kasuya

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