Method for diagnosing incorrect valve lift adjustment in an...

Details Method for diagnosing incorrect valve lift adjustment in an... Method for diagnosing incorrect valve lift adjustment in an...

2005-09-27

2005-09-27

McCall, Eric S. (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Compression

Reexamination Certificate

active

06948358

ABSTRACT:
If, when a valve lift adjustment is triggered in an inlet valve of an internal combustion engine, no valve lift adjustment actually takes place due to a defect in the adjustment mechanism, the air/fuel ratio (lambda) or even a different operating parameter for example the engine speed and torque changes in an unintended manner. By monitoring this operating parameter the operation control device can deduce a defect in the adjustment mechanism.

REFERENCES:
patent: 4957074 (1990-09-01), Weissler et al.
patent: 5060604 (1991-10-01), Seki et al.
patent: 5641891 (1997-06-01), Frankl et al.
patent: 5775355 (1998-07-01), Maier et al.
patent: 5921219 (1999-07-01), Frohlich et al.
patent: 6288409 (2001-09-01), Maier et al.
patent: 6408685 (2002-06-01), Shin
patent: 2003/0230280 (2003-12-01), Allston et al.
patent: 2003/0230281 (2003-12-01), Hoshino
patent: 2004/0129249 (2004-07-01), Kondo
patent: 69021139 (1996-04-01), None
patent: 19520117 (1996-12-01), None
(2000) “The New Motor of the Porsche 911 Turbo,” Automotive Engineering Magazine 61(11)-Statement of Relevancy provided in the Information Disclosure Statement.

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