HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
<<  <  Page 2/2
Douglas Smock
User Rank
Platinum
Plastic Intake Manifolds
Douglas Smock   7/25/2011 12:24:57 PM
NO RATINGS
Intake manifolds made of polyamide were first developed by BASF in Ludwigshafen, Germany in 1972 (with partners) and have now largely replaced metals because of optimized air flow, design freedom and general reductions in weight and cost. There have been some issues because of poor designs, but the materials have been a big success and now new plastics are being explored in response to higher under-the-hood temperatures (esp. turbocharging), demands for improved function integration, noise reduction and lower weight. 

Ivan Kirkpatrick
User Rank
Platinum
Plastic under the hood
Ivan Kirkpatrick   7/25/2011 12:23:39 PM
NO RATINGS
Saving weight is indeed critical to meeting the EPA mileage requirements.  And the use of plastics is one way to do that.  Unfortunately as noted the monkeys are working overtime.  I am sure a proper plastic formulation can be found that will suit this application.

I can't wait to see how that proposed plastic engine works out.  I have seen it in the news before and they are getting closer but this certainly does not bode well for the introduction of a plastic engine.  

I suppose if I were charged with overseeing the weight reduction program I would enumerate all of the components and order them by weight, with the heaviest at the top of the list.   Starting at the top with the heaviest items should allow for the biggest bang for the buck in terms of weight reduction.

Another approach would be to lighten the metal parts and reduce the parts count through more effective component design.  I bet the metal intake manifold could be sufficiently redesigned to reduce  the weight significantly but it might still cost more than the plastic manifold.  

The collection of requirements that must be met represent a difficult balancing act.  Cost, weight, reliability, design life, maintainability, all of these things affect the design.  In this case, it would seem the monkeys tipped the balance too far and messed up the reliability and design life goals.  At least it seems it was an easy fix although rather inconvenient. 

<<  <  Page 2/2


Partner Zone
Latest Analysis
Major global metropolitan areas are implementing a vast number of technology, energy, transportation, and Internet projects to make the metropolis a friendlier, greener, safer, and more sustainable place to be.
If you’ve charted the course of the electric car market over many years, then you know that we’ve always been two years away from a metamorphosis … or five years … or more.
Lots of people who write about robots say they give us jobs, instead of taking them away from humans. Based on the evidence in some recent studies, I'm not so sure.
These free camps are designed for children ages 10-18. Attendees are introduced to 3D CAD software and shown how 3D printers can make their work a reality.
This Hollywood movie-style gag bomb doubles as an alarm clock and a countdown timer.
More:Blogs|News
Design News Webinar Series
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
5/8/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 21 - 25, Design Products With Bluetooth Low Energy
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service