US 12,168,933 B1
Impingement cooling assembly for an aircraft rotary engine housing
Jeremie Barberger, Montreal (CA); Mathias Michaud, Drummondville (CA); and Michel Bousquet, Longueuil (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA)
Filed on Nov. 17, 2023, as Appl. No. 18/512,779.
Int. Cl. F01C 21/06 (2006.01)
CPC F01C 21/06 (2013.01) [F04C 2270/195 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An engine housing for an aircraft rotary engine, the engine housing comprising:
a rotor housing including a rotor housing body, the rotor housing body extends about an axis to form a rotor cavity of the engine housing, and the rotor housing body extends between and to a first axial end and a second axial end; and
a side housing assembly including a side housing body, a side plate, and an impingement cooling assembly,
the side housing body is disposed at the first axial end,
the side plate is disposed axially between the rotor housing body and the side housing body, the side plate includes an inner side, an outer side, and a perimeter edge extending from the inner side to the outer side, and the inner side further forms the rotor cavity, and
the impingement cooling assembly includes a first baffle plate, the first baffle plate is disposed between the side housing body and the side plate, the side housing body, the side plate, and the first baffle plate form a coolant passage of the impingement cooling assembly, the coolant passage includes an inlet plenum and a plurality of impingement cooling holes, the first baffle plate forms the plurality of impingement cooling holes, each impingement cooling hole of the plurality of impingement cooling holes includes a cooling hole inlet and a cooling hole outlet, the cooling hole inlet is disposed at the inlet plenum, and each impingement cooling hole of the plurality of impingement cooling holes is configured to direct a coolant from the inlet plenum toward and onto the outer side from the cooling hole outlet.