Streamline coal slurry letdown valve

Platt, Robert J; Shadbolt, Edward A

Title: Streamline coal slurry letdown valve

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Abstract

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.

Inventors:

Platt, Robert J ^[1]; Shadbolt, Edward A ^[2]

Dover, NJ
Basking Ridge, NJ

Issue Date:: 1983-01-01

Research Org.:: Exxon Research and Engineering Co. (Florham Park, NJ)

Sponsoring Org.:: USDOE

OSTI Identifier:: 864767

Patent Number(s):: 4413646

Assignee:: Exxon Research and Engineering Co. (Florham Park, NJ)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

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F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
F16K27/02 - of lift valves
F16K25/04 - Arrangements for preventing erosion, not otherwise provided for
F16K1/427 - {Attachment of the seat to the housing by one or more additional fixing elements}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/86791 - Piston
Y10T137/4259 - With separate material addition
Y10T137/7036 - Jacketed

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DOE Contract Number:: FC05-77ET10069

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: streamline; coal; slurry; letdown; valve; streamlined; featured; two-piece; throat; comprised; seat; retainer; design; allows; easy; assembly; disassembly; novel; cage; holds; pressure; operating; life; result; erosion-resistance; surfaces; operating life; coal slurry; slurry letdown; letdown valve; pressure letdown; design allows; /137/251/

Citation Formats


                    Platt, Robert J, and Shadbolt, Edward A. Streamline coal slurry letdown valve.  United States: N. p., 1983. 
        Web.

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                    Platt, Robert J, & Shadbolt, Edward A. Streamline coal slurry letdown valve.  United States.

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                    Platt, Robert J, and Shadbolt, Edward A. Sat .  
        "Streamline coal slurry letdown valve".  United States.  https://www.osti.gov/servlets/purl/864767.

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@article{osti_864767,

  title        = {Streamline coal slurry letdown valve},

  author       = {Platt, Robert J and Shadbolt, Edward A},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1983},

  month        = {1}

}

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