{
  "$type": "site.standard.document",
  "description": "A compound engine system (8) comprises a rotary engine (10) having a volumetric compression ratio lower than its volumetric expansion ratio. A recess (38) defined in the peripheral wall (28) of the rotor (24) in each of the chambers (32) has a volume of more than 5% of the displacement volume of…",
  "path": "/patents/993370",
  "publishedAt": "2013-01-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01C1/22",
    "PRATT & WHITNEY CANADA [CA]"
  ],
  "textContent": "A compound engine system (8) comprises a rotary engine (10) having a volumetric compression ratio lower than its volumetric expansion ratio. A recess (38) defined in the peripheral wall (28) of the rotor (24) in each of the chambers (32) has a volume of more than 5% of the displacement volume of the chamber (32). The expansion in a turbine section (13) of the system compensates for the relatively low expansion ratio of the rotary engine (10).",
  "title": "Compound engine system with rotary engine"
}