Title:
METHOD FOR DETERMINING BEARING PLAY OF EXHAUST-GAS-TURBOCHARGER FRICTION BEARINGS
Document Type and Number:
WIPO Patent Application WO/2011/046758
Kind Code:
A3
Abstract:
The invention relates to a method for determining bearing play of exhaust-gas- turbocharger friction bearings comprising the following method steps: accelerating the exhaust-gas turbocharger or the body group from standstill to a maximum rotational speed and at the same time registering the vibration acceleration by means of a sensor; determining the constant-tone frequency of the friction bearing at at least one rotational speed; plotting the determined constant-tone frequency in a diagram, in which bearing-play ranges determined experimentally in advance are assigned to constant- tone frequency ranges; and establishing whether or not the determined constant-tone frequency lies in a bearing-play target range.
Inventors:
WALTER NORBERT (DE)
SEILER ANDRE (DE)
SEILER ANDRE (DE)
Application Number:
PCT/US2010/051032
Publication Date:
July 28, 2011
Filing Date:
October 01, 2010
Export Citation:
Assignee:
BORGWARNER INC (US)
WALTER NORBERT (DE)
SEILER ANDRE (DE)
WALTER NORBERT (DE)
SEILER ANDRE (DE)
International Classes:
F02B39/00; F01D25/16; F16C17/10
Domestic Patent References:
| WO2008041919A1 | 2008-04-10 |
Foreign References:
| JPH11153425A | 1999-06-08 | |||
| JP2002364660A | 2002-12-18 | |||
| JPH06344233A | 1994-12-20 | |||
| JPS61206814A | 1986-09-13 |
Attorney, Agent or Firm:
PENDORF, Stephan A. et al. (1401 Hollywood BoulevardHollywood, Florida, US)
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