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2. Marine pump - Wikipedia

   en.wikipedia.org/wiki/Marine_pump

   The rotational energy typically comes from an engine or electric motor. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits. The gear pump is a marine gear pump that uses the meshing of gears to pump ...

3. Chapman Piloting - Wikipedia

   en.wikipedia.org/wiki/Chapman_Piloting

   It also reviews most common other marine goods and devices such as engines, solar panels, batteries, pumps and osmosis/treatment units. It contains authoritative information about boating rules, weather, tide, currents, navigation, seamanship for powerboats, small craft, and boats under sail; anchoring, communications, and navigation; inland ...

4. Hand pump - Wikipedia

   en.wikipedia.org/wiki/Hand_pump

   They are widely used in every country in the world for a variety of industrial, marine, irrigation and leisure activities. There are many different types of hand pump available, mainly operating on a piston, diaphragm or rotary vane principle with a check valve on the entry and exit ports to the chamber operating in opposing directions.

5. Oil pump - Wikipedia

   en.wikipedia.org/wiki/Oil_pump

   Oil pump may refer to: Hydraulic pump, which pressurizes hydraulic fluid in a hydraulic system; Oil pump (internal combustion engine), a part of the lubrication system that pressurizes motor oil for distribution around the engine; Pumpjack, often used to pump oil out of wells; Submersible pump, often used to pump oil out of wells

6. Ship - Wikipedia

   en.wikipedia.org/wiki/Ship

   The earliest historical evidence of boats is found in Egypt during the 4th millennium BCE. [1] In 2024, ships had a global cargo capacity of 2.4 billion tons, with the three largest classes being ships carrying dry bulk (43%), oil tankers (28%) and container ships (14%). [2]

7. Marine propulsion - Wikipedia

   en.wikipedia.org/wiki/Marine_propulsion

   A pump-jet, hydrojet, water jet, or jet drive uses a ducted propeller (axial-flow pump), centrifugal pump, or mixed flow pump to create a jet of water for propulsion. These incorporate an intake for source water and a nozzle to direct its flow out, generating momentum, and in most cases, employing thrust vectoring to steer the craft.