The Gates Corporation

Wenlong Lu

Yoshitaka Sato

Xinjian Fan

A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines ('L') and arcs ('A') connected according to a sequence from the center of a root to the center of an adjacent cog of L-A-L-A-Lfor the upper profile and A-L-A-L, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of Lplus the radius of Aequal to or within 20% of the radius of A. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.

Double cogged V-belt for variable speed drive

A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines ('L') and arcs ('A') connected according to a sequence from the center of a root to the center of an adjacent cog of L-A-L-A-Lfor the upper profile and L-A-L-A-L, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of Lplus the radius of Aequal to or within 20% of the sum of the length of Lplus the radius of A. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.

Growing community of inventors

Suzhou, China

Wenlong Lu