APPARATUS AND METHOD FOR SERVICE OF AN AUTOMOTIVE AUTOMATIC TRANSMISSION
摘要
A fail-safe transmission service machine (12) allows old ATF (32) to be pumped out of a transmission (10B) while the vehicle engine runs, and responsively pumps a matching volume of new ATF into the transmission so that dry running of the transmission can not occur. If the supply of new ATF (28) runs out or if power to the service machine (12) is interrupted, the machine reverts to closed loop fluid circulation for the transmission. A hydraulic rectifier (42) provides for universal connection of hoses (14, 16) between the transmission cooler (36) fluid circulation loop of the vehicle and the service machine (12). An alternative embodiment of the machine allows for similarly fail-safe exchange of power steering fluid (112) from a vehicle, and replacement of the old fluid with new power steering fluid.
申请公布号
WO9840636(A1)
申请公布日期
1998.09.17
申请号
WO1998US04554
申请日期
1998.03.09
申请人
WYNN OIL COMPANY;DIXON, PATRICK, LEWIS;ROUNDS, TODD, MICHAEL;CAMACHO, MICHAEL, JOSEPH
发明人
DIXON, PATRICK, LEWIS;ROUNDS, TODD, MICHAEL;CAMACHO, MICHAEL, JOSEPH