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  2. List of steam technology patents - Wikipedia

    en.wikipedia.org/wiki/List_of_steam_technology...

    GB 190006487 (A), 1901, An improvement in starting valves for compound steam engines GB 190022906 (A) , 1901, Improvements in valves for use in compound locomotives and other compound engines GB 190504645 (A) , 1905, Improvements relating to the working of compound engines and in regulator valves therefor

  3. Gas lift - Wikipedia

    en.wikipedia.org/wiki/Gas_lift

    The gas-lift mandrel is a device installed in the tubing string of a gas-lift well onto which or into which a gas-lift valve is fitted. There are two common types of mandrels. In a conventional gas-lift mandrel, a gas-lift valve is installed as the tubing is placed in the well. Thus, to replace or repair the valve, the tubing string must be pulled.

  4. Corliss steam engine - Wikipedia

    en.wikipedia.org/wiki/Corliss_steam_engine

    A Corliss steam engine – the valve gear is on the right of the cylinder block, on the left of the picture. A Corliss steam engine (or Corliss engine) is a steam engine, fitted with rotary valves and with variable valve timing patented in 1849, invented by and named after the US engineer George Henry Corliss of Providence, Rhode Island.

  5. List of abbreviations in oil and gas exploration and production

    en.wikipedia.org/wiki/List_of_abbreviations_in...

    TGOR – total gas oil ratio (GOR uncorrected for gas lift gas present in the production fluid [citation needed]) TH – tubing hanger; THCP – tubing hanger crown plug; Thr/Th# – thruster ('#'- means identification letter/number of the equipment, e.g. thr3 or thr#3 means "thruster no. 3" [citation needed]) THD – tubing head; THERM ...

  6. Consolidated Safety-Valve Co. v. Crosby Steam Gauge & Valve ...

    en.wikipedia.org/wiki/Consolidated_Safety-Valve...

    The direction given in the patent that the flange or lip is to be separated from the valve seat by about one sixty-fourth of an inch for an ordinary spring, with less space for a strong spring and more space for a weak spring, to regulate the escape of steam as required, is a sufficient description as matter of law, and it is not shown to be insufficient as a matter of fact.

  7. Baker valve gear - Wikipedia

    en.wikipedia.org/wiki/Baker_valve_gear

    The Baker valve gear replaces the expansion link of the Walschaerts gear with an assembly of levers and links which produces the same effect of allowing continuous variation valve travel. The remainder of the gear is the same, so that the return crank and combination lever take the same form, although the proportions are usually modified.

  8. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    parts list: A list, usually tabular and often on the drawing (if not accompanying the drawing on a separate sheet), listing the parts needed in an assembly, including subparts, standard parts, and hardware. There is no consistently enforced distinction between an L/M, a BoM, or a P/L. PLM: product lifecycle management; plant lifecycle management

  9. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    Vertical lift check valve. A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid ...

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