US Patent Issued to Caterpillar on Aug. 19 for "Control of an impeller clutch of a torque converter for a gaseous fuel engine" (Texas Inventors)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,231, issued on Aug. 19, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Control of an impeller clutch of a torque converter for a gaseous fuel engine" was invented by Shawn M. Damm (Houston), Rodney D. Harms (Houston), Todd Ryan Kabrich (Tomball, Texas), Yuesheng He (Sugar Land, Texas) and Sri Harsha Uddanda (Cypress, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic fracturing pump system may include a hydraulic fracturing pump, a gaseous fuel engine configured to drive the hydraulic fracturing pump, and a transmission system including a gear system mechanically coupled to the hydraulic fracturing pump and torque converter configur...