Exhaust gas turbocharger

Details Exhaust gas turbocharger Exhaust gas turbocharger

1986-11-18

1988-09-13

Bennett, Henry

Rotary kinetic fluid motors or pumps

Including working fluid force responsive vane or flow control

Upstream of runner

415164, F01D 1716

Patent

active

047706031

ABSTRACT:
An exhaust gas turbocharger comprising a turbine with a guide apparatus comprising a ring of guide vanes arranged concentrically around a rotor axis and pivotable between two end limits. A first securing ring is arranged at the side of a bearing housing for mounting a first trunnion of each guide vane which is also mounted at the side of an oppositely disposed turbine housing. An adjusting mechanism is provided for adjusting one of the two end limits, and the guide vanes are freely pivotable under the influence of flow forces in the resulting predetemined angle adjustment range. The arrangement makes possible a compact construction which can be fabricated at reduced cost and easily assembled. This is achieved by an assembly containing the guide apparatus and the adjusting mechanism, and which includes a second securing ring arranged at the side of a turbine housing for mounting a second trunnion of each guide vane. The assembly has an inner diameter which is larger than the outer diameter of the turbine wheel, and the two securing rings are connected to each other in axially spaced relation by connecting elements to form a flow channel in which the guide vanes are disposed.

REFERENCES:
patent: 3645645 (1972-02-01), Gammill et al.
patent: 3957392 (1976-05-01), Blackburn
patent: 4107927 (1978-08-01), Gordon Jr. et al.
patent: 4179247 (1979-12-01), Osborn
patent: 4403913 (1983-09-01), Fisker
patent: 4654941 (1987-04-01), Burdette et al.
patent: 4657480 (1987-04-01), Pfeil
patent: 4702672 (1987-10-01), Leicht et al.

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