{
  "$type": "site.standard.document",
  "description": "A bottom wall portion of a valve member has an annular convex portion projecting from a bottom surface toward a valve seat. A rubber seal member has a flat plate portion in contact with the bottom wall portion, and an annular lip portion formed to project toward the valve seat at a position…",
  "path": "/patents/1261177",
  "publishedAt": "2020-05-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M25/0854",
    "DENSO CORPORATION"
  ],
  "textContent": "A bottom wall portion of a valve member has an annular convex portion projecting from a bottom surface toward a valve seat. A rubber seal member has a flat plate portion in contact with the bottom wall portion, and an annular lip portion formed to project toward the valve seat at a position corresponding to the convex portion in the flat plate portion so as to abut on the valve seat at the time of valve closing. A projecting tip of the lip portion forms an arc-shaped part in the axial cross section of the valve member. A projecting tip of the convex portion forms an arc-shaped part having a curvature radius larger than a curvature radius of the arc-shaped part of the lip portion in the axial cross section of the valve member.",
  "title": "VALVE MEMBER AND EVAPORATIVE FUEL PROCESSING SYSTEM"
}