US 12,264,616 B1
Rotary engine and cooling systems thereof
Michel Bousquet, Longueuil (CA); Jeremie Barberger, Montreal (CA); and Ninad Joshi, Brampton (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed on Sep. 11, 2023, as Appl. No. 18/464,777.
Int. Cl. F02B 55/10 (2006.01); F02B 53/00 (2006.01)
CPC F02B 55/10 (2013.01) [F02B 2053/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotary engine, comprising:
housings secured to one another, the housings including a first side housing, a second side housing, and a rotor housing disposed between the first side housing and the second side housing, the rotor housing including a peripheral wall having a peripheral inner face and a peripheral outer face; and
a rotor rotationally received within a rotor cavity defined by the first side housing, the second side housing, and the rotor housing, the rotor contacting the peripheral inner face of the peripheral wall of the rotor housing;
wherein the first side housing, the rotor housing, and the second side housing are cooled in parallel via respective coolant passages including:
a first side housing coolant passage extending through the first side housing;
a second side housing coolant passage extending through the second side housing; and
a rotor housing coolant passage extending through the rotor housing, the rotor housing coolant passage located between the peripheral inner face and the peripheral outer face, and
wherein the coolant passages are free of inter-passage connection between the housings.