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U.S. Department of Energy
Office of Scientific and Technical Information

Streamline coal slurry letdown valve

Patent ·
OSTI ID:7159388
A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces. 5 figs.
DOE Contract Number:
FC05-77ET10069
Assignee:
Exxon Research and Engineering Co., Florham Park, NJ (United States)
Patent Number(s):
US 4413646; A
Application Number:
PPN: US 6-263750
OSTI ID:
7159388
Country of Publication:
United States
Language:
English