High pressure pump with reduced seal wear
US9377011B2 · kind B2 · utility
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1References
8Claims
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Assignee
Inventors
Key dates
| Filing date | Apr 17, 2012 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Mar 20, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/164
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Described are embodiments of a pump that can be used, for example, in liquid chromatography applications. The pump includes a seal wash housing, pump head and seal assembly. A wear-resistant coating applied to a sealing surface or gland of the pump head or seal wash housing improves the hardness and chemical compatibility of the sealing surface. Oxidation of the sealing surface is reduced so that the sealing surface is less abrasive to the seal assembly and the lifetime of the seal assembly is increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.