ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,987, issued on Aug. 5, was assigned to Rolls-Royce plc.

"Blower system for bidirectional flow" was invented by Christopher A. Murray (Nottingham, Great Britain) and Mark J E Bellis (Derby, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A blower system for a gas turbine engine comprising: a rotor assembly, an airframe port and a routing-control valve. The rotor assembly is configured to be mechanically coupled to a spool of the gas turbine engine. The airframe port is configured to receive and discharge air to an airframe system. The routing-control valve comprises: a primary channel for bidirectional flow between the rotor assembly and ...