vane$89523$ - translation to ελληνικό
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vane$89523$ - translation to ελληνικό

Vane pump; Rotary pump; Rotary vane vacuum pump; Sliding vane
  • An eccentric rotary vane pump
  • Another eccentric rotary-vane pump design. Note that modern pumps have an area contact between rotor and stator (and not a line contact).<br>
1. pump housing<br>
2. rotor<br>
3. vanes<br>
4. spring

vane      
n. ανεμοδείκτης, πτέρυξ έλικα
weather vane         
  • Oast houses have vanes to ensure a controlled draught of air flows through the building.
  • Dragon weather vane from the Index to American Design, National Gallery of Art.
  • Wind vanes are found on small horizontal-axis wind turbines
  • A modern scientific weathervane , gives the direction of the wind as an electrical signal.
METEOROLOGICAL INSTRUMENTATION USED FOR SHOWING THE DIRECTION OF THE WIND
Wind vane; Weathervane; Weathercock; Weather cock; Windvane; World's Largest Weather Vane; Wind veins; Weather-vane; Wind direction indicator
ανεμοδείκτης
wind gauge         
  • Acoustic resonance principle
  • Acoustic resonance anemometer
  • [[Britannia Yacht Club]] clubhouse tour, burgee, and wind gauge on roof
  • Cup anemometer animation
  • Hot-wire sensor
  • Instruments at [[Mount Washington Observatory]]. The pitot tube static anemometer is on the right.
  • Drawing of a laser anemometer. The laser light is emitted (1) through the front lens (6) of the anemometer and is backscattered off the air molecules (7). The backscattered radiation (dots) re-enters the device and is reflected and directed into a detector (12).
  • The pointed head is the pitot port. The small holes are connected to the static port.
  • Tube anemometer invented by William Henry Dines. The movable part (right) is mounted on the fixed part (left).
  • Fixed mounted 2D ultrasonic anemometer with 3 paths. <br />Central spike keeps birds away.
  • 3D ultrasonic anemometer
METEOROLOGICAL INSTRUMENTATION USED FOR MEASURING THE SPEED OF WIND
Cup-anemometer; Anemometers; Vane anemometer; Cup anemometer; Vane Anemometer; Aerovane; Wind measurement; Wind gauge; Hot-wire anemometry; Wind meter; Windometer; Anenometer; Dimes anemometer; Sonic Anemometer; Sonic Anemometers; Sonic anemometer; Sonic anemometers; Windmeter; Pitot tube static anemometer; Constant temperature anemometry; Wind speed meter; Wind scoop; Ultrasonic Anemometers; Anemograph; Anemometre; Wind sensor; Anemogram
ανεμόμετρο

Ορισμός

weathervane
¦ noun a revolving pointer to show the direction of the wind.

Βικιπαίδεια

Rotary vane pump

A rotary vane pump is a type of positive-displacement pump that consists of vanes mounted to a rotor that rotates inside a cavity. In some cases these vanes can have variable length and/or be tensioned to maintain contact with the walls as the pump rotates.

This type of pump was invented by Charles C. Barnes of Sackville, New Brunswick, who patented it on June 16, 1874. There have been various improvements since, including a variable vane pump for gases (1909).

This type of pump is considered less suitable than other vacuum pumps for high-viscosity and high-pressure fluids, and is complex to operate. They can endure short periods of dry operation, and are considered good for low-viscosity fluids.