Valve, in particular for a high-pressure pump of a fuel-injection device for an internal combustion engine

Valve, in particular for a high-pressure pump of a fuel-injection device for an internal combustion engine

  • CN 1,886,590 A
  • Filed: 09/14/2004
  • Published: 12/27/2006
  • Est. Priority Date: 11/25/2003
  • Status: Active Grant
First Claim
Patent Images

1. L. valve, valve in particular for the high-pressure service pump of the fuel injection system of an internal-combustion engine, has a valve element (35), this valve element and valve seat (a 44) acting in conjunction that in a housing parts (10), constitutes, so that control an attachment portion (32), wherein, valve seat (44) has an approximate at least conical fitting surface (45), this fitting surface is set on the transition portion from a section (32a) with minor diameter to an attachment portion (32) with large diameter section (32b), it is characterized in that:

  • fitting surface towards having large diameter section (32b) side, be connected at least one face (54 with fitting surface (45);

         154), the longitudinal axis (33) of the relative attachment portion of this face (32) tilts byer force than fitting surface (45);

    And fitting surface towards the section with minor diameter (32a) side, be connected at least one face (52 with fitting surface (45);

         152), the longitudinal axis (33) of the relative attachment portion of this face (32) tilts than a little less than the fitting surface (45).

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