- Email: [email protected]
Corner seal for ductwork used in air-conditioning systems
FEATURE/PATENTS 4. Zisman, Industrial and Engineering Chemistry, 55 (1963) pp. 18–38. 5. Harkins and Feldman, J. American Chem. Soc., 44 (1922) No. 12. 6. DIN 55660-2, Sessile Drop Tensiometry, 2011. 7. Owens and Wendt, J. Appl. Polymer Science, 13 (1969) pp. 1741–1747. 8. Fowkes, Industrial and Engineering Chemistry, 56 (1964) No. 12. 9. London, Trans. Faraday Soc., 33 (1937) pp. 8–26. 10 Debye, Physikalische Zeitschrift, 21 (1920) pp. 178–187. 11 Keesom, Physikalische Zeitschrift, 22 (1921) pp. 129–141. 12 DIN 55660-4, Pendant Drop Tensiometry – dispersive part, 2012. 13. Kaelble, ‘Physical Chemistry of Adhesion’, John Wiley & Sons, 1971. 14. Lein, ‘Mechanische Untersuchungen an Dichtungsringen für rotierende Wellen’, PhD-Thesis, University of Karlsruhe, 1952. 15. Messner, ‘Untersuchung von HydraulikStangendichtungen aus Polytetrafluoräthylen’, PhD-Thesis, University of Stuttgart, 1985. 16. Müller, ‘Schmierfilmbildung, Reibung und Leckverlust von elastischen Dichtungsringen an bewegten Maschinenteilen’, PhD-Thesis, Univ. Stuttgart, 1962. 17. Wernecke, ‘Untersuchung der physikalischen Vorgänge in Spalten von Hydraulikdichtungen’, PhD-Thesis, University of Aachen, 1984. 18. Blok and van Hook, Lubrication Engineering, 9 (1953) pp. 316 ‘Mechanische Untersuchungen an Dichtungsringen für rotierende Wellen’ 320.
PATENTS Mechanical seal assembly that includes ozone disinfecting device Applicant: Eagleburgmann Germany GmbH & Co. Kg, Germany This invention relates to a mechanical seal assembly that includes a first mechanical seal, which has a first stationary slip ring, and a second rotating slip-ring, defining a first sealing gap between them. It also includes a barrier-fluid device that has a barrier-fluid circuit inside which a barrier-fluid circulates. An electrochemical cell that produces ozone is also part of the design. The cell is disposed in the barrier-fluid circuit and discharges produced ozone into the barrier fluid so that it circulates along with the barrier fluid. 12
Sealing Technology
19. Bowden and Tabor, ‘The Friction and Lubrication of Solids’, Oxford Press, 1950. 20. Hardy and Doubleday, Proc. Royal Soc. A, 100 (1922) pp. 550 ‘Mechanische Untersuchungen an Dichtungsringen für rotierende Wellen’ 574. 21. Deryaguin et al., Wear, 1 (1957/58). 22. Wolf, ‘Physik und Chemie der Grenzflächen’, Vol. 2, Springer Verlag, 1959. 23. Asfer and Panigrahi, (chapter) Boundary Slip of Liquids, ‘Encyclopedia of Microfluidics and Nanofluidics’, Springer Verlag; 2015. 24. Meurisse and Espejel, Proc. ImechE, 222 (2008) pp. 369–380. 25. Kammüller, ‘Zur Abdichtwirkung von Radial-Wellendichtringen’, PhD-Thesis, University of Stuttgart, 1986. 26. Hajjam and Dominique, Proc. IMechE, 220 (2006) pp. 79–84. 27. Schuler, ‘Einfluss von Grenzflächeneffekten auf den Dichtmechanismus der RadialWellendichtung’, PhD-Thesis, University of Stuttgart, 2014. 28. Hörl and Haas, International Sealing Conference, 2012, pp. 434–446. 29. Buhl, ‘Wechselbeziehungen im Dichtsystem von Radial-Wellendichtring, Gegenlauffläche und Fluid’, PhD-Thesis, University of Stuttgart, 2006. 30. Raab, Heft 239, Forschungskuratorium Maschinenbau, 1998. 31. Schallamach, Wear, 17 (1971) pp. 301–312. 32. Jenisch, ‘Abdichten mit Radial-Wellendichtringen aus Polytetrafluorethylen’, PhD-Thesis, University of Stuttgart, 1991.
33. Jagger, Proc. IMechE, 187 (1973) pp. 361–367. 34. Klaiber, ‘Betriebs- und Benetzungseigenschaften im Dichtsystem Radial-Wellendichtung am Beispiel von additivierten synthetischen Schmierölen’, PhD-Thesis, University of Stuttgart, 2013. 35. Schuler and Haas, Getlub, Congress, 2012, pp. 154–166.
Patent number: WO/2015/082089 Inventors: B. Jenisch, J. Otschik, D. Ziegenbein and S. Czeizner, J. Portenlänger and A. Schrüfer Publication date: 18 June 2015
bly of such ductwork sections, incorporating the unique comer seal described in this patent, is also disclosed. A HVAC system incorporating this corner seal and related structures is also covered by the patent. Patent number: WO/2015/089329 Inventor: D. Yoskowitz Publication date: 18 June 2015
Corner seal for ductwork used in air-conditioning systems Applicant: Capital Hardware Supply Inc, USA A corner seal is disclosed for preventing unwanted air leaks in ductwork sections that direct conditioned air in heating, ventilating and air conditioning (HVAC) systems. The seal eliminates potential air leaks caused inter alia, by the flange members of the ductwork sections, and it also avoids previously known costly expenses and loss of time to seal the unwanted air leaks created when the flange members of the ductwork sections are made and prepared for assembly. A method of assem-
Contact: Dr.-Ing. Pat.-Ing. Peter Schuler, Universität Stuttgart, Institut für Maschinenelemente, Pfaffenwaldring 9, 70569 Stuttgart, Germany. Tel: +49 711 685 66024, Fax: +49 711 685 66319, Email: [email protected], Web: www.ima.uni-stuttgart.de
The full paper – entitled ‘The wettability of sealing materials and its effect on sealing performance’ – was published and presented by BHR Group at the 23rd International Conference on Fluid Sealing (Fluid Sealing 2016), which was held in Manchester, UK, on 2–3 March 2016. It is reproduced in two instalments in Sealing Technology with the permission of the author and BHR Group. Contact: Georgia Bown, Conference Organiser, BHR Group, The Fluid Engineering Centre, Cranfield, Bedfordshire MK43 0AJ, UK. Tel: +44 1234 750422, Fax: +44 1234 750074, Email: [email protected], Web: www.bhrgroup.com/events
(A brief review of the conference appears in Sealing Technology March 2016, page 8).
Multi-material seal Applicant: Aktiebolaget SKF, Sweden A multifunctional and multi-material seal for a bearing or an actuator has been developed and forms the subject of this patent. The invention also provides details of the method used to produce this seal. The seal has a seal side and an environment side, and comprises first and second materials. The first material is applied by “printing” using an additive manufacturing process and has different properties compared with the second materi-
May 2016
PATENTS Mechanical seal assembly that includes ozone disinfecting device Applicant: Eagleburgmann Germany GmbH & Co. Kg, Germany This invention relates to a mechanical seal assembly that includes a first mechanical seal, which has a first stationary slip ring, and a second rotating slip-ring, defining a first sealing gap between them. It also includes a barrier-fluid device that has a barrier-fluid circuit inside which a barrier-fluid circulates. An electrochemical cell that produces ozone is also part of the design. The cell is disposed in the barrier-fluid circuit and discharges produced ozone into the barrier fluid so that it circulates along with the barrier fluid. 12
Sealing Technology
19. Bowden and Tabor, ‘The Friction and Lubrication of Solids’, Oxford Press, 1950. 20. Hardy and Doubleday, Proc. Royal Soc. A, 100 (1922) pp. 550 ‘Mechanische Untersuchungen an Dichtungsringen für rotierende Wellen’ 574. 21. Deryaguin et al., Wear, 1 (1957/58). 22. Wolf, ‘Physik und Chemie der Grenzflächen’, Vol. 2, Springer Verlag, 1959. 23. Asfer and Panigrahi, (chapter) Boundary Slip of Liquids, ‘Encyclopedia of Microfluidics and Nanofluidics’, Springer Verlag; 2015. 24. Meurisse and Espejel, Proc. ImechE, 222 (2008) pp. 369–380. 25. Kammüller, ‘Zur Abdichtwirkung von Radial-Wellendichtringen’, PhD-Thesis, University of Stuttgart, 1986. 26. Hajjam and Dominique, Proc. IMechE, 220 (2006) pp. 79–84. 27. Schuler, ‘Einfluss von Grenzflächeneffekten auf den Dichtmechanismus der RadialWellendichtung’, PhD-Thesis, University of Stuttgart, 2014. 28. Hörl and Haas, International Sealing Conference, 2012, pp. 434–446. 29. Buhl, ‘Wechselbeziehungen im Dichtsystem von Radial-Wellendichtring, Gegenlauffläche und Fluid’, PhD-Thesis, University of Stuttgart, 2006. 30. Raab, Heft 239, Forschungskuratorium Maschinenbau, 1998. 31. Schallamach, Wear, 17 (1971) pp. 301–312. 32. Jenisch, ‘Abdichten mit Radial-Wellendichtringen aus Polytetrafluorethylen’, PhD-Thesis, University of Stuttgart, 1991.
33. Jagger, Proc. IMechE, 187 (1973) pp. 361–367. 34. Klaiber, ‘Betriebs- und Benetzungseigenschaften im Dichtsystem Radial-Wellendichtung am Beispiel von additivierten synthetischen Schmierölen’, PhD-Thesis, University of Stuttgart, 2013. 35. Schuler and Haas, Getlub, Congress, 2012, pp. 154–166.
Patent number: WO/2015/082089 Inventors: B. Jenisch, J. Otschik, D. Ziegenbein and S. Czeizner, J. Portenlänger and A. Schrüfer Publication date: 18 June 2015
bly of such ductwork sections, incorporating the unique comer seal described in this patent, is also disclosed. A HVAC system incorporating this corner seal and related structures is also covered by the patent. Patent number: WO/2015/089329 Inventor: D. Yoskowitz Publication date: 18 June 2015
Corner seal for ductwork used in air-conditioning systems Applicant: Capital Hardware Supply Inc, USA A corner seal is disclosed for preventing unwanted air leaks in ductwork sections that direct conditioned air in heating, ventilating and air conditioning (HVAC) systems. The seal eliminates potential air leaks caused inter alia, by the flange members of the ductwork sections, and it also avoids previously known costly expenses and loss of time to seal the unwanted air leaks created when the flange members of the ductwork sections are made and prepared for assembly. A method of assem-
Contact: Dr.-Ing. Pat.-Ing. Peter Schuler, Universität Stuttgart, Institut für Maschinenelemente, Pfaffenwaldring 9, 70569 Stuttgart, Germany. Tel: +49 711 685 66024, Fax: +49 711 685 66319, Email: [email protected], Web: www.ima.uni-stuttgart.de
The full paper – entitled ‘The wettability of sealing materials and its effect on sealing performance’ – was published and presented by BHR Group at the 23rd International Conference on Fluid Sealing (Fluid Sealing 2016), which was held in Manchester, UK, on 2–3 March 2016. It is reproduced in two instalments in Sealing Technology with the permission of the author and BHR Group. Contact: Georgia Bown, Conference Organiser, BHR Group, The Fluid Engineering Centre, Cranfield, Bedfordshire MK43 0AJ, UK. Tel: +44 1234 750422, Fax: +44 1234 750074, Email: [email protected], Web: www.bhrgroup.com/events
(A brief review of the conference appears in Sealing Technology March 2016, page 8).
Multi-material seal Applicant: Aktiebolaget SKF, Sweden A multifunctional and multi-material seal for a bearing or an actuator has been developed and forms the subject of this patent. The invention also provides details of the method used to produce this seal. The seal has a seal side and an environment side, and comprises first and second materials. The first material is applied by “printing” using an additive manufacturing process and has different properties compared with the second materi-
May 2016