Sealed throttle valve bearings improve fuel efficiency of Dakar Rally vehicles
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 278 KB
- Volume
- 2010
- Category
- Article
- ISSN
- 1350-4789
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✦ Synopsis
Sealed throttle valve bearings improve fuel efficiency of Dakar Rally vehicles
V ehicles competing in the forthcoming Dakar Rally 2010 will be equipped with specially sealed, compact throttle valve needle roller bearings manufactured by The Schaeffler Group.
These bearings are designed to protect the engine and withstand the pressure peaks that originate from the fuel combustion chamber. The specially sealed needle roller bearing is a key component in turbocharged engines, and plays a vital role in exhaust gas recirculation, helping to improve engine efficiency and reduce fuel consumption.
These high-precision throttle valve bearings are airtight to protect against both excess pressure and vacuum conditions. The seal on both sides of the bearing is capable of resisting high operating temperatures. Corrosion-resistant materials also ensure that the bearing is resistant to fuel, mineral oil, grease and acidic 'blow-by' condensate. Because of their integrated seals, the bearings can operate at temperatures of -40°C up to 150°C without any additional sealing.