US Patent: 1,965,388
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| Rotary Pump
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Patentee:
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| Percy Oliver Ott (exact or similar names) - Racine, Racine County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 09, 1932 |
| Granted: |
Jul. 03, 1934 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Racine Tool & Machine Co.
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Description: |
| Abstract:
The invention relates to hydraulic pumps and more particularly to that type of rotary hydraulic pump wherein a rotor revolves around a stationary valve shaft provided with inlet and outlet ports that communicate during the cycle of operations with passages in the rotor which communicate with a plurality of pumping compartments formed between the body of the rotor, vanes in the rotor and a casing. Among the objects of the invention are to provide a pump of the character above described in which the capacity of the pump may be readily varied, to improve the rotor assembly and its association with the valve shaft and to insure at 15i all times an efficient action of the vanes without the use of springs.
Claim:
In a pump of the character described, the combination with a supporting frame, a stationary shaft supported by said frame having a cylindrical valve portion provided with inlet and outlet ports and end portions of smaller diameter than said valve portion provided with inlet and outlet passages respectively communicating with said inlet and outlet ports, a rotor having an annular body portion mounted to rotate about said valve portion and end plates secured to said body portion, the body Portion of said rotor and one of said end plates having hub portions abutting said valve portion and mounted to turn on the end portions of said shaft, journals in said frame for said hub portions, a shiftable ring member revolving with the rotor and defining therewith a chamber, said ring member being slidable between said end plates, reciprocating blades mounted in the body of the rotor and working between said end plates and defining with said rotor and ring member a plurality of pumping compartments, said rotor having passages to establish communication between said pumping compartments and said ports in said shaft as the rotor revolves, and adjustable means in which said ring member is freely journaled for shifting said ring member relative to the axis of rotation of the rotor to vary the output of the pump. |
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