×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Bosch Fuel Pump with copper commutator for research

Bosch Fuel Pump with copper commutator for research

Bosch Fuel Pump with copper commutator for research

(OP)
thread71-122214: Triple E Fuel pump commutator wear

I followed the earlier thread with interest as I want to do some research on a gasoline fuel pump with a copper commutator.  Can anyone tell me the order number of the Bosch EKP3 pump referred to in the earlier thread or any other suitable pump.
Are copper commutators still current, or have they been replaced by carbon

RE: Bosch Fuel Pump with copper commutator for research

I used to be involved in the application of electric pumps for 1,3 & 5+bar gasoline systems and electric lift pumps for diesel systems.

Its been a few years but, gasoline systems typically used copper coms with a variety of brush compositions to deal with different gasoline mixtures. Carbon coms were the last resort in dealing with agressive gasoline mixtures due to increased costs.

Some authorities had it that diesel fuel needed a carbon com to achieve good durability but this may also depend on the system pressure and the current draw.

Commutator shape may also have a bearing on life.
The EKP3 and 4 pumps have a barrel shaped commutator, ND pumps use face coms.

I can't remember the part numbers now but if you go to a Ford dealer and ask for a pump for the following vehicles, you will get the performances shown:

1988 Escort XR3i    120litre/hr @ 5 bar
1989 Escort XR3i Turbo   150litre/hr @ 5.8 bar
 

Bill

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources