{
  "$type": "site.standard.document",
  "description": "The injector (10) has a valve needle (20) movably arranged in an injector housing (11) in upward and downward directions. A piezoelectric actuator (18) is arranged in an actuator module space (15) for indirectly actuating the valve needle. The actuator module space filled with fuel is coupled with…",
  "path": "/patents/1003043",
  "publishedAt": "2012-04-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M47/027",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The injector (10) has a valve needle (20) movably arranged in an injector housing (11) in upward and downward directions. A piezoelectric actuator (18) is arranged in an actuator module space (15) for indirectly actuating the valve needle. The actuator module space filled with fuel is coupled with a fuel return line (27). The actuator is acted upon by force in a direction of a side facing away from the valve needle. A compressible damping element (40) is designed as a Wills Ring(RTM: Metal O-Ring) and arranged in the actuator module space for reduction of hydraulic pressure peaks.",
  "title": "FUEL INJECTOR, IN PARTICULAR COMMON RAIL INJECTION SYSTEM"
}