{
  "$type": "site.standard.document",
  "description": "A common rail injector (1) for injecting fuel through a high-pressure channel (12) includes a control chamber (4), a control valve (102), and a drive unit (101). The control chamber (4) applies pressure to a nozzle needle (5). The control valve (102) switches communication of the control chamber…",
  "path": "/patents/1070892",
  "publishedAt": "2006-01-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M47/027",
    "DENSO CORP [JP]"
  ],
  "textContent": "A common rail injector (1) for injecting fuel through a high-pressure channel (12) includes a control chamber (4), a control valve (102), and a drive unit (101). The control chamber (4) applies pressure to a nozzle needle (5). The control valve (102) switches communication of the control chamber (4) between the high-pressure channel (12) and a low-pressure channel (13). The drive unit (101) selectively sets a valve element (2) of the control valve (102) on a low-pressure side seat (22) or a high-pressure side seat (23). The drive unit (101) has an actuator (6) and a slide pin member (3). The slide pin member (3) slides inside a slide hole (31) to transmit a force to the valve element (2). A diameter of the low-pressure side seat (22) is less than or equal to a diameter of the high-pressure side seat (23). The pressure in the control chamber (4) is exerted as an assistance force, so that a high-pressure side seat closing load becomes less than or equal to a low-pressure side seat opening load.",
  "title": "Common-rail injector"
}