About 236 results
Showing the first 200 results.
https://drivepatents.com/patents/1386624 · 3 Jun 2026
A drive system for an aircraft. The drive system includes a controller, a motor coupled to an H-bridge network, a DC link that can be coupled to the motor; and an electrical braking system (100) configured to be electrically coupled to the motor. The elect...
https://drivepatents.com/patents/1386890 · 27 May 2026
A fuel system a main manifold (102) with an inlet (104) and a plurality of main manifold branches (108). Each valve in a plurality of valves is connected in fluid communication with a respective one of the main manifold branches in the plurality of main ma...
https://drivepatents.com/patents/1391037 · 20 May 2026
In accordance with at least one aspect of this disclosure, an emergency power unit system for an aircraft includes a fuel cell system (102) configured to generate power using a fuel and an oxidant, and an oxidant supply system (108) fluidly connected to th...
https://drivepatents.com/patents/1388982 · 15 Apr 2026
A system includes a permanent magnet generator (PMG) with a generator shaft (104) defining a longitudinal axis. A brake system includes a brake shaft (108) with a first end operatively connected to the generator shaft for selectively rotating with the gene...
https://drivepatents.com/patents/1393281 · 15 Apr 2026
A heat exchanger having: front and aft ends (110, 120); heat exchanger cores (130) in an annular loop (140) that define circumferential gaps (150) between adjacent pairs of the cores, the cores, individually or as axially aligned sets, extend from the fron...
https://drivepatents.com/patents/1393916 · 15 Apr 2026
A hydrogen fueled power system (10) of a vehicle includes a liquid hydrogen fuel source (14) having a volume of liquid hydrogen fuel and a thermal engine (20) configured to expand the liquid hydrogen fuel into gaseous form via interaction between a heated ...
https://drivepatents.com/patents/1391342 · 8 Apr 2026
A system includes a variable displacement pump (VDP) (102) in fluid communication with an inlet line (104) and with an outlet line (106). A bypass valve (BPV) (110) includes a BPV inlet (112) in fluid communication with the outlet line, and a BPV outlet (1...
https://drivepatents.com/patents/1398351 · 1 Apr 2026
In accordance with at least one aspect of this disclosure, a system for active flow control includes one or more flow control devices (102) configured to control flow between a fluid source (104) and a fluid destination (106), and a control module (108) co...
https://drivepatents.com/patents/1399661 · 1 Apr 2026
In accordance with at least one aspect of this disclosure, a pump selector system can include a primary pump (104) fluidly connected to provide a primary flow to a fluid destination (110), a secondary pump (204) fluidly connected to provide a secondary flo...
https://drivepatents.com/patents/1387932 · 1 Apr 2026
A fluid pump system can include a controllable pump (101) configured to generate a pump flow through the controllable pump and to output an output flow to an output line (103). The fluid pump system can include a flow split system (105) configured to be in...