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News Release from: Mike Page - editor's feature articles
Edited by the Manufacturingtalk Editorial
Team on 16 May 2005
Composites throttle body is 25% lighter
Metals are threatened further by the development of an IC engine throttle body produced from compoites material that is more economical to make and weighs 25% less.
Bosch has scored a worldwide 'first' by starting production of a throttle body for petrol engines produced from composite material The new component weighs 25% less, as well as being more economical to manufacture than traditional metal throttle bodies
This article was originally published on Manufacturingtalk on 29 Oct 2001 at 8.00am (UK)
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Other benefits of this innovation are more accurate control of the opening angle of the valve; easier adaptation to different engines and vehicle models as well as superior performance in a crash - composite material will shatter into multiple small parts under sudden impact.
The throttle body is the central actuator to control the airflow intake in the electronic throttle control system (ETC) thus determining the power output of the engine.
"Optimising throttle body geometry with a composite compatible design allows for even more precise control of the air volume that can have a very positive effect when the engine is running at idle or with a small load," said Dr Elmar Huber, project manager composite throttle body, Bosch Gasoline Systems Division.
In addition, connection to the cooling system of the vehicle becomes unnecessary as the low heat conductivity of the composite material reduces the risk of icing considerably.
The new generation of throttle bodies, to be know as DV-E8, have the housing as well as the valve produced in a long-life stable glass reinforced thermoplastics material that is highly temperature and wear resistant.
The flexible structure of the throttle body design makes it very adaptable to whatever the requirements of the OEM.
About Bosch - the Bosch Group is the world's largest provider of automotive technology to all leading vehicle and component manufacturers.
In 2004, the company generated automotive sales of EUR 25.3 billion and employs 149,200 people in this sector.
The key business areas include: fuel injection technology (diesel and petrol); systems for active and passive vehicle safety (brakes, ABS, traction control, ESP, control units for restraint systems); electrical motors, rotating electrics and products for car multimedia.
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