The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Jun. 14, 2023
Pratt & Whitney Canada Corp., Longueuil, CA;
Eric Sylvain Durocher, Boucherville, CA;
Michel Labrecque, Sainte-Julie, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
The aircraft can have a cabin adapted to receive one or more persons; a rotary airfoil device; an electric engine drivingly coupled to the rotary airfoil device; a battery powering the electric engine; a coolant subsystem having a coolant circuit and a coolant pump operable to circulate a coolant in the coolant circuit, the coolant circuit connected in heat exchange relationship with at least one of the electric engine and the battery; a heat pump having a refrigerant circuit fluidly connecting, in sequence, a compressor, a condenser, an expansion valve, a first evaporator, and an environmental control line branching off from the refrigerant circuit between the condenser and the first evaporator, the environmental control line having a second evaporator and reconnected to the refrigerant circuit between the first evaporator and the compressor, the first evaporator connected in heat exchange relationship with the coolant circuit; and a pressurized air subsystem having a pressurized air line operable to deliver pressurized air from a pressurized air source to the cabin, the pressurized air line connected in heat exchange relationship with the second evaporator.