{
  "$type": "site.standard.document",
  "description": "A valve assembly (20) for an aircraft engine (10) includes a base (21) defining an air opening (19) configured to receive airflow therethrough in a flow direction from an upstream side (15) to a downstream side (17), a stopper (24) extending from the downstream side (17) of the base (21) adjacent…",
  "path": "/patents/1416585",
  "publishedAt": "2026-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C6/08",
    "PRATT & WHITNEY CANADA [CA]"
  ],
  "textContent": "A valve assembly (20) for an aircraft engine (10) includes a base (21) defining an air opening (19) configured to receive airflow therethrough in a flow direction from an upstream side (15) to a downstream side (17), a stopper (24) extending from the downstream side (17) of the base (21) adjacent the air opening (19), and a flapper plate (22) pivotably mounted to the base (21) about a pivot axis (25). The flapper plate (22) is pivotable relative to the base (21) and the stopper (24) between a closed position (22B) and a fully open position (22A). In the fully open position (22A), a downstream surface (28) of the flapper plate (22) abuts the stopper (24). In the closed position (22B), the flapper plate (22) obstructs the air opening (19). A deflector (41) extends from an upstream surface (26) of the flapper plate (22) and projects into the airflow when the flapper plate (22) is located in the fully open position.",
  "title": "FLAPPER VALVE FOR AIRCRAFT ENGINE"
}