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  2. Comparison of orbital rocket engines - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_orbital...

    Engine Origin Designer Vehicle Status Use ... Electric pump: 292: ... Gas generator 298–309 8,450–20,200 17–41 199: 1.8: RD-869

  3. Expander cycle - Wikipedia

    en.wikipedia.org/wiki/Expander_cycle

    Expander rocket cycle. Expander rocket engine (closed cycle). Heat from the nozzle and combustion chamber powers the fuel and oxidizer pumps. The expander cycle is a power cycle of a bipropellant rocket engine. In this cycle, the fuel is used to cool the engine's combustion chamber, picking up heat and changing phase.

  4. Quantum heat engines and refrigerators - Wikipedia

    en.wikipedia.org/wiki/Quantum_heat_engines_and...

    Quantum thermodynamics supplies a dynamical theory required for systems out of equilibrium such as heat engines, thus, inserting dynamics into thermodynamics. The theory of open quantum systems constitutes the basic theory. For heat engines a reduced description of the dynamics of the working substance is sought, tracing out the hot and cold baths.

  5. SpaceX rocket engines - Wikipedia

    en.wikipedia.org/wiki/SpaceX_rocket_engines

    Kestrel was a LOX/RP-1 pressure-fed rocket engine, and was developed by SpaceX as the Falcon 1 rocket's second stage main engine; it was used in 2006–2009. It was built around the same pintle architecture as SpaceX's Merlin engine but does not have a turbo-pump, and is fed only by tank pressure.

  6. Gasoline pump - Wikipedia

    en.wikipedia.org/wiki/Gasoline_pump

    A gasoline pump or fuel dispenser is a machine at a filling station that is used to pump gasoline (petrol), diesel, or other types of liquid fuel into vehicles. Gasoline pumps are also known as bowsers or petrol bowsers (in Australia and South Africa), [2] [3] petrol pumps (in Commonwealth countries), or gas pumps (in North America).

  7. Plugs vs. Pump: How Much It Actually Costs to Charge an ...

    www.aol.com/plugs-vs-pump-much-actually...

    We break down how much it costs to charge an electric vehicle at home and at public charging stations. Plus, whether installing a level 2 charger is worth it.

  8. ‘Pump Switching’ and Other Gas Station Scams To ... - AOL

    www.aol.com/gas-station-scam-pump-switching...

    Here are some other gas pump scams you should be aware of. Skimming Devices. Skimming devices are illegal card readers that scammers attach to payment systems on gas pumps. When you swipe your ...

  9. NYT ‘Connections’ Hints and Answers Today, Saturday, January 18

    www.aol.com/nyt-connections-hints-answers-today...

    Spoilers ahead! We've warned you. We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT ...