| US 7,527,577 B2 | ||
| Automatic transmission and gear train | ||
| Scott R. Dalenberg, 4876 E. Alameda Ct., Springfield, Mo. 65809 (US); Theodore V. Kachel, 3 Hampton Rd., Purchase, N.Y. 10544 (US); and John W. Creighton, 259 Washington Ave., Hickory, Pa. 15340 (US) | ||
| Filed on Nov. 30, 2006, as Appl. No. 11/565,304. | ||
| Application 11/565304 is a continuation of application No. 11/002639, filed on Dec. 03, 2004, granted, now 7,195,578. | ||
| Claims priority of provisional application 60/526979, filed on Dec. 05, 2003. | ||
| Claims priority of provisional application 60/526978, filed on Dec. 05, 2003. | ||
| Prior Publication US 2007/0093353 A1, Apr. 26, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. F16H 57/04 (2006.01); F16H 57/08 (2006.01) | ||
| U.S. Cl. 475—331 [418/170] | 5 Claims |
| 1. An automatic transmission having a conventional planetary gear system modified by a process comprising:
(a) increasing a number of pinion gears between sun and ring gears of the planetary gear system in order to delay beginning
of gear spalling;
(b) inserting a metal sleeve in a housing of a transmission pump in an area of an outer gear;
(c) altering a geometry of an inner pump crescent to create a clearance between an inner gear and a leading edge of the inner
pump crescent; and
(d) modifying an oil lubrication circuit to allow a constant flow of oil from a pressure port to a lubrication port.
|