Number | Name | Date | Kind |
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4256065 | Hirt | Mar 1981 | |
5016583 | Blish | May 1991 | |
5327856 | Schroeder et al. | Jul 1994 | |
5331931 | Blish et al. | Jul 1994 | |
5598814 | Schroeder et al. | Feb 1997 |
Number | Date | Country |
---|---|---|
2-259212 | Oct 1990 | JPX |
Entry |
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Henry et al; A Novel, Fully Flexible, Electro-Mechanical Engine Valve Actuation System; Society of Automotive Engineers Pub. #970249, 1997. |