Impeller mounting system and method
AssigneeSea Solar Power
InventorJ. Hilbert Anderson
Life of this patent
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Abstract
An article, such as an impeller, is mounted for torque transmission by a shaft by positioning the article in contact with a threaded collar engaging tapered threads on the shaft and applying an axial force to the article to move and tighten the threaded collar on the tapered threads. The axial force is applied to the article by a clamping collar which contacts the article only in an area spaced from a central bore of the article in order to deflect a portion of the article defining the central bore radially inward toward the shaft. In one embodiment, two impellers are positioned back-to-back, with one impeller receiving an axial force spaced radially from a central bore of the impeller by an annular formation on the other impeller.
Claims28
A system for mounting at least one impeller on an impeller shaft without keys and keyways, comprising:
- an impeller shaft having tapered threads;
- a threaded collar positioned on the impeller shaft and defining a central bore having threads effective to engage the tapered threads on the impeller shaft;
- at least one impeller positioned on the impeller shaft and in contact with the threaded collar;
- and
- an arrangement axially forcing the impeller into contact with the threaded collar and axially forcing the threaded collar into torque transmitting contact with the tapered threads.
A system for mounting at least one article on a drive shaft without employing 20 key and keyway means, comprising:
- a drive having tapered threads;
- a threaded collar positioned on the drive shaft and defining a central bore having threads effective to engage the tapered threads on the drive shaft;
- at least one article positioned on the drive shaft and in contact with the threaded collar;
- and
- an arrangement axially forcing the article into contact with the threaded collar and axially forcing the threaded collar into torque transmitting contact with the tapered threads
A method of mounting at least one impeller on an impeller shaft to transmit torque from the impeller shaft to the impeller without keys and keyways comprising:
- providing tapered threads on the impeller shaft;
- positioning on the impeller shaft a threaded collar such that threads on the threaded collar engage the tapered threads of the impeller shaft;
- placing at least one impeller on the impeller shaft in contact with the threaded collar;
- and
- applying an axial force on the impeller in a direction toward the threaded collar to move and tighten the threaded collar on the tapered threads and enable torque to be transmitted from the impeller shaft to the threaded collar and the impeller.
A method of mounting at least one article on a drive shaft to transmit torque from the drive shaft to the article without keys and keyways comprising:
- providing tapered threads on the drive shaft;
- positioning on the drive shaft a threaded collar such that threads on the threaded collar engage the tapered threads of the drive shaft;
- placing at least one article on the drive shaft in contact with the threaded collar;
- and
- applying an axial force on the article in a direction toward the threaded collar to move and tighten the threaded collar on the tapered threads and enable torque to be transmitted from the drive shaft to the threaded collar and the article.
Dependencies are inferred from the claim text.