Friction drive containing polyolefin fluid
Abstract
Abstract A FRICTION DRIVE MACHINE COMPRISES A POWER INPUT MEMBER AND A POWER OUTPUT MEMBER IN TRACTIVE ROLLING CONTACT RELATIONSHIP AND AN OXIDATION-RESISTANT FLUID FILM BETWEEN SAID MEMBERS, SAID FLUID COMPRISING A POLYMERIC REACTION PRODUCT OFC2-C8 OLEFIN, SAID POLYMER PREFERABLY HAVING AN AVERAGE MOLECULAR WEIGHT OF 170-1000 (E.G., 300-500). THE CHOICE OF MOLECULAR WEIGHT IS DETERMINED PRIMARILY BY THE DESIRED VISCOSITY CHARACTERISTICS OF THE FLUID (INCLUDING THE EFFECT OF ANY OTHER COMPONENTS SUCH AS LOW VI NAPHTHENES). FOR EXAMPLE, A POLY-3-METHYLBUTENE-1 (#31) OR 361 AVERAGE MOLECULAR WEIGHT HAS A KV AT 210*F. OF 5.47 CS., WHEREAS AN ETHYLENEPROPYLENE COPOLYMER OIL (#44) OF 555 AVERAGE MOLECULAR WEIGHT HAS A KV AT 210*F. OF 8.50 CS., AND A POLYPROPYLENE OIL (#25) HAVING A KV AT 210*F. OF 5.679 HAS AN AVERAGE MOLECULAR WEIGHT OF 457. THE POLYMERIC REACTION PRODUCT IS PREFERABLY HYDROGENATED TO EFFECTIVELY ELIMINATE OLEFINIC UNSATURATION.
Inventors
- 👤 Irl N Duling
- 👤 Frederick P Glazier
Bibliographic Details
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
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