Internal-combustion engines – Poppet valve operating mechanism – Hydraulic system
Reexamination Certificate
2008-09-15
2010-11-23
Eshete, Zelalem (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Hydraulic system
C123S090150, C123S090170
Reexamination Certificate
active
07836857
ABSTRACT:
The invention relates to a valve and suitable hydraulic circuit, especially for camshaft adjusters of an internal combustion engine. The hydraulic circuit comprises a number of check valves or two-way valves operating as check valves, in order to provide a rapid camshaft adjuster with a high regulating quality.
REFERENCES:
patent: 5138985 (1992-08-01), Szodfridt et al.
patent: 5645017 (1997-07-01), Melchoir
patent: 5657725 (1997-08-01), Butterfield et al.
patent: 6267041 (2001-07-01), Skiba et al.
patent: 6453859 (2002-09-01), Smith et al.
patent: 6532921 (2003-03-01), Sato et al.
patent: 6814036 (2004-11-01), Palesch et al.
patent: 6941912 (2005-09-01), Palesch et al.
patent: 7219636 (2007-05-01), Sawada
patent: 7331318 (2008-02-01), Schweizer
patent: 7387097 (2008-06-01), Schmitt et al.
patent: 2002/0062803 (2002-05-01), Sato et al.
patent: 2003/0177991 (2003-09-01), Palesch et al.
patent: 2004/0211379 (2004-10-01), Palesch et al.
patent: 2005/0072397 (2005-04-01), Sluka et al.
patent: 2005/0241603 (2005-11-01), Palesch et al.
patent: 2005/0257762 (2005-11-01), Sawada
patent: 2006/0201463 (2006-09-01), Schweizer
patent: 2006/0225791 (2006-10-01), Patze et al.
patent: 2007/0074687 (2007-04-01), Bosl-Flierl et al.
patent: 2007/0266971 (2007-11-01), Bosl-Flierl et al.
patent: 36 01 643 (1987-07-01), None
patent: 42 10 580 (1993-10-01), None
patent: 198 44 669 (2000-03-01), None
patent: 101 58 530 (2002-08-01), None
patent: 102 05 415 (2003-08-01), None
patent: 10 2005 023 056 (2005-12-01), None
patent: 10 2005 004 281 (2006-01-01), None
patent: 10 2005 013 085 (2006-01-01), None
patent: 602 07 308 (2006-03-01), None
patent: 0 388 244 (1990-09-01), None
patent: 1 347 154 (2003-09-01), None
patent: 1 447 602 (2004-08-01), None
patent: 1 212 327 (1970-11-01), None
patent: 99/67537 (1999-12-01), None
patent: 2004/088094 (2004-10-01), None
patent: 2004/088099 (2004-10-01), None
Smith et al., “A Camshaft Torque-Actuated Vane-Style VCT Phaser”, pp. 43-50 (SAE International, Jan. 2005).
Pohl, Dirk, et al., “Vanecam® FastPhaser-Camphasing System for Improvement of Phasing Rate and Reduction of Oil Consumption”, Konfernz Haus der Technik Variable Ventilsteuerung, 17 pages, Feb. 2007.
Bartzsch Jens
Knecht Andreas
Neudoerfer Gordon
Pohl Dirk
Eshete Zelalem
Hydraulik-Ring GmbH
Lipsitz & McAllister LLC
LandOfFree
Hydraulic circuit, particularly for camshaft adjusters, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic circuit, particularly for camshaft adjusters, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic circuit, particularly for camshaft adjusters, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4242580