Potential CO₂-Savings Achieved by Using Gas Lubricated Face Seals

Authors

M.Sc. S. Neuberger, Dr.-Ing. E. Bock, Freudenberg Sealing Technologies GmbH & Co. KG, Weinheim; Prof. Dr.-Ing. habil. W. Haas,
University of Stuttgart; Dr. rer. nat. K. J. Lang, EagleBurgmann Germany GmbH & Co. KG, Wolfratshausen

Year

2014

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 777

Summary

In the development of today’s automobiles, there is an emphasis on the reduction of fuel consumption and the associated CO₂ emissions. The emission of a few grams of CO₂/km is due to dynamic seals in powertrains. Simmerrings in internal combustion engines are one example. The innovative use of gas-lubricated mechanical face seals makes it possible to avoid a large portion of these emissions. With this type of seal, the seal components float relative to one another due to the introduction of air into the seal gap, and they slide on a film of air. This drastically reduces friction. This article points out the potential savings, explains the concept of the gas-lubricated mechanical face seal and provides information on the status of the development with regard to the simulation of functional behavior and test findings.

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