Internal-combustion engines – Poppet valve operating mechanism – Hydraulic system
Reexamination Certificate
2005-07-26
2005-07-26
Solis, Erick (Department: 3747)
Internal-combustion engines
Poppet valve operating mechanism
Hydraulic system
C123S090160, C123S090320, C123S19800E
Reexamination Certificate
active
06920849
ABSTRACT:
A device for controlling cylinder disconnection in internal combustion engines, with a control device which permits in one of its two switching states an actuation of the valve concerned, with transmission devices which, in dependence on the switching state of the control device, transmit the cam stroke to the valve, and with a control unit acting on the control device. This provides a high switch over reliability with only small requirements for the changeover technology used. For this, the device has a data memory for the detection of the time course of the movement behavior of the gas exchange valves of cylinders of the internal combustion engine, and a data processing unit which provides a combination of gas exchange valves into valve groups with regard to a common activation or deactivation.
REFERENCES:
patent: 4050435 (1977-09-01), Fuller et al.
patent: 4401069 (1983-08-01), Foley
patent: 6588394 (2003-07-01), Zheng
patent: 6752121 (2004-06-01), Rayl et al.
patent: 196 28 024 (1998-01-01), None
patent: 196 32 651 (1998-02-01), None
Haas Michael
Karbstein Henning
INA-Schaeffler KG
Solis Erick
Volpe and Koenig P.C.
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