Seal assembly for a rotary engine housing

US12252991B2 · kind B2 · utility

Assignee

• PRATT & WHITNEY CANADA CORP. · CA

Inventors

• Johnny Vinski · Châteauguay, CA
• Michel Bousquet · Longueuil, CA
• Jean-Philippe Simoneau · Saint-Constant, CA
• David Gagnon-Martin · Longueuil, CA
• Vincent Savaria · Laval, CA
• Bruno Villeneuve · Boucherville, CA
• Stephane Berube · St-Philippe, CA
• Frederic Roy · Ski Chaste Lane, CA
• Sebastien Bolduc · Longueuil, CA

Key dates

• Filing date: Jul 13, 2023
• Grant date: Mar 18, 2025
• Expiry date: Jul 13, 2043

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C27/008
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An engine housing includes a rotor housing body, a side housing body a side plate and a seal assembly. The rotor housing body extends about an axis to form a rotor cavity. The rotor housing body extends between and to a first axial end and a second axial end. The side housing body is disposed at the first axial end. The side plate includes an inner side, an outer side, and a perimeter edge extending from the inner side to the outer side. The seal assembly includes a support ring and a spacer. The support ring and the spacer extend about the axis. The support ring is mounted to the perimeter edge by a braze joint. The spacer extends between and to a first axial spacer end and a second axial spacer end. The first axial spacer end is disposed at the support ring and the outer side.