{
  "$type": "site.standard.document",
  "description": "A brake fluid pressure maintaining apparatus (5) for a vehicle, having: a master cylinder (2); a check valve (23); and, a normally-open-type electromagnetic valve (6) including an electromagnetic coil (44), a fixed core (40), and a movable core (41), and in the brake fluid pressure maintaining…",
  "path": "/patents/1086765",
  "publishedAt": "2004-06-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T7/122",
    "NISSIN KOGYO KK [JP]"
  ],
  "textContent": "A brake fluid pressure maintaining apparatus (5) for a vehicle, having: a master cylinder (2); a check valve (23); and, a normally-open-type electromagnetic valve (6) including an electromagnetic coil (44), a fixed core (40), and a movable core (41), and in the brake fluid pressure maintaining state, it is closed and, in the brake fluid pressure no-maintaining state, it is always opened, and by changing the value of the current, an attracting force is changed; by setting the attracting force at a given value, the brake fluid pressure to be maintained on the wheel brake side (25,35) is set; and, when it is closed, in case where the brake fluid pressure of the wheel brake (4) is higher than the attracting force of the given value, it is opened against the attracting force to thereby reduce the brake fluid pressure of the wheel brake (4) down to the given value.",
  "title": "Brake fluid pressure maintaining apparatus for vehicles"
}