{
  "$type": "site.standard.document",
  "description": "A rotary throttle valve carburetor has a fuel-and-air mixing passage which extends through a carburetor body. A cylindrical throttle chamber extends down from a top surface of the body and communicates transversely with the fuel-and-air mixing passage. A rotary throttle seats rotatably and…",
  "path": "/patents/1109587",
  "publishedAt": "2001-10-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M9/00",
    "WALBRO JAPAN INC [JP]"
  ],
  "textContent": "A rotary throttle valve carburetor has a fuel-and-air mixing passage which extends through a carburetor body. A cylindrical throttle chamber extends down from a top surface of the body and communicates transversely with the fuel-and-air mixing passage. A rotary throttle seats rotatably and vertically or axially movable within the chamber and through the fuel-and-air mixing passage. The rotary throttle has a bore fully communicating and longitudinally aligned with the fuel-and-air mixing passage at wide-open throttle. The rotary throttle has a throttle shaft projecting upward through the top surface of the carburetor body and through a hole of a base portion of a plastic lid plate engaged between the top surface and a metallic bracket. An upward projecting annular shoulder of the lid plate is disposed concentrically to and spaced radially apart from the throttle shaft. A circular seal is disposed radially between the annular shoulder of the lid plate and the throttle shaft to prevent dirt from entering the valve chamber. A metallic cam follower engages the bracket and contacts a cam surface of a throttle lever engaged transversely to the upper end of the throttle shaft. The metallic cam follower or bracket is interconnected to the metallic carburetor body by a plurality of metallic spacers.",
  "title": "Rotary throttle valve carburetor"
}