Internal-combustion engines – Poppet valve operating mechanism – Plural valve trains – single actuator
Patent
1989-08-30
1990-05-08
Myhre, Charles J.
Internal-combustion engines
Poppet valve operating mechanism
Plural valve trains, single actuator
123 904, F01L 126
Patent
active
049228676
ABSTRACT:
A valve actuating mechanism for an internal combustion engine is provided including an integrally formed stop element to limit the axial travel of the valves toward the piston to a predetermined maximum extent in the event an adjacent associated valve becomes stuck and unmovable. The present invention further provides a valve actuating mechanism including a guideless valve bridge with specifically configured contact faces which prevents both the excess axial movement of the valve stem and the transfer of undesired loads to the valve stem or adjacent structures.
REFERENCES:
patent: 3633556 (1972-01-01), Inoue
patent: 3963004 (1976-06-01), Lysinger et al.
patent: 4327677 (1982-05-01), Vander Bok
patent: 4343268 (1982-08-01), Stang et al.
Cummins Engine Company, Inc.
Lo Weilyn
Myhre Charles J.
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