ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,031, issued on Jan. 27, was assigned to Zhejiang CFMOTO Power Co. Ltd. (Hangzhou, China).
"Engine" was invented by Jing Yang (Hangzhou, China), Yazhi Zhang (Hangzhou, China), Zhaoju Chai (Hangzhou, China), Guilin Xu (Hangzhou, China) and Xinhe Lv (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An internal combustion engine includes a throttle valve assembly having a main passage and an idle air passage. The main passage is in fluid communication with the intake valve, air being intermittently input into a combustion space through the main passage based on position of an intake valve. The idle air passage is integrally formed in the t...