×
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

HPDI vs low pressure air assisted direct injection

HPDI vs low pressure air assisted direct injection

HPDI vs low pressure air assisted direct injection

(OP)
Not sure if I have simply fell for all the hype but it seems that there are some good advantages to using low pressure air assisted direct injection. It's use seems more applicable for 2-storke engines as it can reduce amount of oil being injected aswell as petrol. But what about 4 stroke engines? HPDI seems to be the next new thing for cars.

I have read that HPDI can wet the pistons, spark plug, values lowing over all quench distance of fuels?? etc, causing more emission problems than it is theoretical meant to fix via lean operation, air assisted on the other hand does not.

I have found lots of info on air assisted DI, but am lost in tring to find the real deal on HPDI. Can someone point me in the right direction? Are my above statements completely wrong?

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