Exhaust gas turbocharger

Exhaust gas turbocharger

  • CN 104,220,720 B
  • Filed: 04/19/2013
  • Issued: 03/03/2020
  • Est. Priority Date: 04/27/2012
  • Status: Active Grant
First Claim
Patent Images

1. An exhaust-gas turbocharger (1) having:

  • a turbine (2) having a turbine wheel (3) surrounded by an air inlet duct (4); and

    a VTG cartridge (5) having a washer (6) and a blade bearing ring (7), which delimit an inlet duct (4), and having a plurality of blades (8) which are arranged in the inlet duct (4) and which are mounted in the blade bearing ring (7) by means of a plurality of rotatable blade shafts (9) which are connected to a plurality of blade levers (10), the lever heads (11) of which engage in associated grooves (12) in a unison ring (13) which surrounds the blade bearing ring (7) on the outside, and having radial bearings between the blade bearing ring (7) and the unison ring (13),wherein the content of the first and second substances,the radial bearing has at least one pin (14) which is fastened to the blade bearing ring (7) and on which rolling rollers (15) are placed, on which rolling rollers the inner wall region (16) of the unison ring (13) is supported,the locking washer (18) is fastened to the free end (20) of the pin (14),the vane lever (10) is cranked,the pin (14) has a small pin (17) which is used to ignite the arc during welding and which melts away completely in the process, so that the pin (14) is joined to the blade bearing ring (7) in a butt-joint manner,the locking washer (18) is fastened to the free end (20) at a defined distance (A) from the upper side (OS) of the rolling roller.

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