Title:
TURBOCHARGER
Document Type and Number:
Japanese Patent JPS62139931
Kind Code:
A
Abstract:
A variable nozzle turbocharger has a ring of vanes (34, 134) mounted within the annular passageway (30) through which exhaust gases flow from a volute (28) to the turbine rotor (12). The vanes (34) can pivot on pins (36) mounted in axial bores in a nozzle ring (38) which defines one side of the passageway (30) and is secured to the housing by dowels (55) or bolts (141). The free ends of the vane pins (36) are secured to respective vane arms (46) which have outer ends which can rock in slots (51) on the radially inner surface of a unison ring (48). The unison ring is mounted on rollers (49) on dowels (55) located in relation to the housing and the nozzle ring (38) and can be turned around the nozzle ring (38) by an external crank mechanism (60) to pivot all the vanes (34) together to vary the angle at which the exhaust gases are directed at the turbine rotor. The dowel and roller guides maintain the unison ring (48) concentric with the nozzle ring (38) which is itself concentrically located in relation to the housing.
Inventors:
JIIN RATSUKU FURUURII
Application Number:
JP28303086A
Publication Date:
June 23, 1987
Filing Date:
November 26, 1986
Export Citation:
Assignee:
GARRETT CORP
International Classes:
F01D17/16; F02B37/24; F02C6/12; (IPC1-7): F01D17/16; F02B37/12
Domestic Patent References:
| JPS6021472U | 1985-02-14 | |||
| JPS552162U | 1980-01-09 |
Attorney, Agent or Firm:
Toshio Takayama