This patent provides details of a rotary joint that is designed for the transfer of low-temperature refrigerant with a minimal running cost. The joint has a series of bellows-type mechanical seals isolating the transfer passages. Patent WO/2009/122782 appears to provide more detail on the sealing sy
Rotary sealing joint
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 115 KB
- Volume
- 2006
- Category
- Article
- ISSN
- 1350-4789
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โฆ Synopsis
This patent describes a gasket or grommet type device that may be used for sealing an opening in components such as a cylinder head cover where a tube passes through. To avoid damage on assembly the outside diameter is similar to or less than the diameter of the hole. Provision is made for radial expansion of the gasket after assembly. The gasket can then be used to seal orifices that are not manufactured to precise dimensions.
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A rotary joint for a tyre inflation unit is disclosed. This design uses brush seals and has the advantage over conventional solutions that no separate pressure control channel for the pressurization of the seal is required.
This invention relates to seals for rotor sealing systems, particularly seals for machines that manipulate a hot, viscous material such as injection moulding machines. It is designed to overcome problems of polymer leakage and poor temperature distribution in the area of the seal. The detail of the