air-intake

Chevrolet, a subsidiary of General Motors Corporation (NYSE: GM), is equipping its 2017 Silverado 2500HD with a functional bonnet scoop and a new patented air-intake system.

Therefore, the task of air-intake is to maximize the static pressure recovery and the flow uniformity at the engine inlet face/compressor inlet called "aerodynamic inlet plane" (AIP).

In one of the regions, the company is using a chemically coupled PP/glass compound developed a couple of years ago by Borealis Polymers, Mechelen, Belgium, specifically for air-intake manifolds and other parts exposed to high temperatures and loads.

An air-induction tube developed by Polaris Industries All-Terrain Vehicles uses material and processing innovations that are said to enhance engine air-intake performance and reduce costs.

Ultramid nylon resins from BASF are used to injection mold what is called "the first all-plastic air-intake module," featured in the 1999 BMW 2-liter, 4-cylinder turbo diesel engine.

This included the use of impact copolymers for battery cases and fender liners, random copolymers for washer-fluid reservoirs, and filled homopolymers for air-intake and heater ducting.

Another market amenable to PPS forming is automotive under-hood parts like engine covers and air-intake manifolds that are currently injection molded of nylon or other high-temperature plastics.

The new material was used recently to make 20 air-intake manifolds by Rapid Prototype Co., Auburn Hills, Mich.

A new vibration welder from Branson Ultrasonics will join reduced-density nylon 6 air-intake manifolds made with Trexel Corp.'s MuCell microcellular foam technology.

(booth 2542), plans to show vibration welding of a complex air-intake manifold from two halves injection molded of glass-reinforced nylon 66.

* The air-intake manifold on a highend European car may be one sign of a renaissance for phenolics.

Beyond front-end carriers, Dow envisions using the LESA adhesive system to bond integrated air-intake manifolds, doors, tailgates, and fender modules.

A new air-intake design allows much more effective internal bubble cooling for small blown-film dies, says Brampton Engineering Inc., Brampton, Ont.

The latest example of this application is a 30% glass-filled nylon 46 air-intake manifold for the Ford Transit minivan in the U.K.

BMW in Germany is also evaluating air-intake manifolds injection molded of Carilon by a lost-core process.