The fuel facility of internal-combustion engine

The fuel facility of internal-combustion engine

  • CN 101,956,637 A
  • Filed: 07/09/2010
  • Published: 01/26/2011
  • Est. Priority Date: 07/09/2009
  • Status: Active Application
First Claim
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1. the fuel facility of an internal-combustion engine, it is the common rail fuel supply equipment, have the area of low pressure, have the pump-unit that comprises at least one high-pressure service pump, to be used for that fuel is transported to the high-pressure area from described area of low pressure, wherein, in described high-pressure area described pump-unit and with sparger that cylinder is associated between be provided with and have at least one storage unit, continue to be in the pressure storage system under the high pressure, and wherein, each high-pressure service pump of described pump-unit is associated with a suction valve and a delivery valve respectively, fuel can be drawn into the pump chamber of each high-pressure service pump from described area of low pressure by described suction valve, can be by described delivery valve at transfer the fuel on the direction of described pressure storage system from the pump chamber of each high-pressure service pump, it is characterized in that, the valve seat (8) of the suction valve (3) of each high-pressure service pump (1) and/or the valve seat (10) of delivery valve (4) are formed by removable seat inserting member (11,12) respectively.

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