Measuring and testing – Dynamometers – Responsive to force
Reexamination Certificate
2008-01-22
2008-01-22
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Dynamometers
Responsive to force
C073S862322
Reexamination Certificate
active
07320257
ABSTRACT:
Revolution speeds nca, nibof rolling elements9a, 9bare sensed by a pair of revolution speed sensors21a, 21b. Also, a rotational speed niof a hub2is sensed by a rotational speed sensor15b. A sum “nca+ncb” or a difference “nca−nib” the revolution speeds of rolling elements9a, 9bin double rows is calculated based on sensed signals of the revolution speed sensors21a, 21b, and then a ratio “nca+nib
i” or “nca−ncb
i” of this sum or difference to the rotational speed niis calculated. Then, the radial load or the an axial load is calculated based on the ratio “nca+ncb
i” or “ca−nib
i”.
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Ono Koichiro
Sakatani Ikunori
Takizawa Takeshi
Yanagisawa Tomoyuki
Kirkland, III Freddie
Lefkowitz Edward
NSK Ltd.
Sughrue Mion Pllc.
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