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2. Rotary vane pump - Wikipedia

   en.wikipedia.org/wiki/Rotary_vane_pump

   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). 1. pump housing 2. rotor 3. vanes 4. spring. 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 ...

3. Hydraulic pump - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_pump

   Fixed displacement vane pump. A rotary vane pump is a 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.

4. Gorman-Rupp Company - Wikipedia

   en.wikipedia.org/wiki/Gorman-Rupp_Company

   Diversifying their product line to include a variety of specialized pumps contributed to significant sales increase and growth in the post-war era. [4] In 2021, The Gorman-Rupp Company had sales of $378.3 Million and was listed by industrial database IndustrySelect as one of the largest pump manufacturers in the United States. [5] [6]

5. Hydristor - Wikipedia

   en.wikipedia.org/wiki/Hydristor

   There are 4 US and international patents on this device: US6022201 - Hydraulic vane pump with flexible band control - filled May 14, 1997 [2] US6527525 - Hydristor control means - filled Feb 8, 2001 [3] US6612117 - Hydristor heat pump - filled Feb 20, 2002 [4] US7484944 - Rotary vane pump seal - filled Aug 11, 2004 [5]

6. Comparison of pumps - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_pumps

   Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...

7. Rotary compression pump - Wikipedia

   en.wikipedia.org/wiki/Rotary_compression_pump

   The maximum efficiency of a rotary compression pump is the ratio between the volume in contact with the vacuum and the smallest contracted volume in contact with the valve. If the ratio is 1:1000 and the pump is exhausting to atmospheric pressure, the highest achievable vacuum is 1/1000 of atmospheric pressure.