Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Patent
1997-12-15
2000-06-06
El-Arini, Zeinab
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
134 221, 134 2211, 134 2212, 134 2218, 134 2219, 134 20, 134 26, 134 32, 134 39, B08B 304, B08B 504
Patent
active
060713550
ABSTRACT:
A method of cleaning the transmission system of a vehicle includes the steps of starting an engine of the vehicle and bringing it to normal operating temperature. A predetermined amount of a transmission cleaner is charged into the transmission and the vehicle is driven for a predetermined distance. The gears are changed at preselected times while driving so that all gears of the transmission are used equally. The engine is then shut down and transmission fluid is purged from the transmission fluid pan by submerging a trailing end of a first hose into the transmission fluid. A leading end of the first hose is connected into fluid communication with an inlet of a remote charging tank and an outlet of the remote charging tank is connected through a switch to a source of negative pressure. The switch is set to cause the transmission fluid to flow into a transmission fluid waste tank disposed between the outlet and the source of negative pressure. The trailing end of the first hose is then removed from the transmission fluid pan and a transmission cooling line is disconnected from a preselected port of the radiator. The trailing end of the first hose is placed into fluid communication with the transmission cooling line at the preselected port while maintaining the leading end of the first hose in fluid communication with the inlet of the remote charging tank. Transmission fluid is vacuumed from the transmission cooling line and the transmission cooling line is reattached so that all transmission fluid is removed from the transmission cooling lines and most of the transmission fluid is removed from the torque converter.
REFERENCES:
patent: 4197140 (1980-04-01), Swan
patent: 4671230 (1987-06-01), Turnipseed
patent: 5232513 (1993-08-01), Suratt et al.
patent: 5289837 (1994-03-01), Betancourt
patent: 5401324 (1995-03-01), Huddas
El-Arini Zeinab
Smith Ronald E.
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