Announcement

Collapse
No announcement yet.

Purpose and Location of Fuel Delivery Check Valve in Fuel Injection System?

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Purpose and Location of Fuel Delivery Check Valve in Fuel Injection System?

    What is the purpose and location of fuel delivery check valve in fuel pump of the injection system?

  • #2
    Hi mohit : It is located in the discharge side of the pump housing.
    As the valve job is to prevent the backflow of the fuel from the high-pressure piping and fuel valves into the pump during the suction stroke of the pump and also at the end of delivery stroke when suction and discharge gets short-circuited to terminate the delivery stroke. Otherwise the backflow of the oil from the fuel piping will take place. In that case, every time at the end of delivery the high-pressure side of the piping will get partially empty and this will cause late beginning of injection for the next stroke. Hence it is necessary to maintain the high-pressure pipe between the fuel pump and fuel valve to be always filled with the oil. At the same time, they should be maintained at certain high pressure.

    Comment

    Working...
    X