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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]
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 ...
Harry Franklin Vickers (October 1, 1898 – January 12, 1977) was an American inventor and industrialist. He grew up in Montana and southern California . He was called the "Father of Industrial Hydraulics" by the American Society of Mechanical Engineers, who gave him the Society's highest award, the ASME Medal, in 1956.
A critical element in vane pump design is how the vanes are pushed into contact with the pump housing, and how the vane tips are machined at this very point. Several type of "lip" designs are used, and the main objective is to provide a tight seal between the inside of the housing and the vane, and at the same time to minimize wear and metal-to ...
Piston pumps can be made variable-displacement by inserting springs inline with the pistons. The displacement is not positively controlled, but decreases as back-pressure increases. Another variation is the variable-displacement vane pump, a type that has found usage in motor vehicle automatic transmissions, such as the General Motors Hydra-Matic.
The pump's cavity is then sealed from the chamber, opened to the atmosphere, and squeezed back to a minute size. [14] [16] More sophisticated systems are used for most industrial applications, but the basic principle of cyclic volume removal is the same: [17] [18] Rotary vane pump, the most common; Diaphragm pump, zero oil contamination
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