US 12,110,796 B1
Seal assembly for a rotary engine housing
Johnny Vinski, Chateauguay (CA); Jean-Philippe Simoneau, Longueuil (CA); David Gagnon-Martin, Longueuil (CA); Vincent Savaria, Laval (CA); Bruno Villeneuve, Boucherville (CA); Stephane Berube, Saint-Philippe (CA); Frederic Roy, Saint-Amabie (CA); and Sebastien Bolduc, Saint-Bruno-de-Montarville (CA)
Assigned to Pratt & Whitney Canada Corp., Longueuil (CA)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA)
Filed on Jul. 13, 2023, as Appl. No. 18/221,645.
Int. Cl. F01C 19/00 (2006.01); F01C 1/34 (2006.01); F01C 1/344 (2006.01); F01C 21/06 (2006.01)
CPC F01C 19/005 (2013.01) [F01C 1/3442 (2013.01); F01C 21/06 (2013.01); F04C 2240/30 (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 a seal 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 seal assembly includes a support ring and a sealing ring, the support ring and the sealing ring extend about the axis, the support ring is disposed at the perimeter edge and the first axial end, the support ring circumscribes the side plate, the sealing ring extends between and to a first axial sealing ring end and a second axial sealing ring end, the first axial sealing ring end is disposed at the support ring and the outer side, and the second axial sealing ring end is disposed at the side housing body.