초록 ▼

Fluid changing in an automatic transmission by opening the cooler line and draining used fluid, at the flow of normal circulation, out of the cooler line from the transmission into a drain receptacle for receiving used fluid and simultaneously supplying fresh fluid, from a pressurized supply recepta

Fluid changing in an automatic transmission by opening the cooler line and draining used fluid, at the flow of normal circulation, out of the cooler line from the transmission into a drain receptacle for receiving used fluid and simultaneously supplying fresh fluid, from a pressurized supply receptacle into the cooler return line to the transmission at a similar controlled rate that is equal or greater than the rate of flow of the used fluid into the drain receptacle.

대표청구항 ▼

1. A method for exchanging a used fluid with a fresh fluid in a vehicle having an automatic transmission connected to a fluid circuit, said used fluid initially being contained within said transmission and said fluid circuit, at least a substantial portion of which is subsequently discharged into a

1. A method for exchanging a used fluid with a fresh fluid in a vehicle having an automatic transmission connected to a fluid circuit, said used fluid initially being contained within said transmission and said fluid circuit, at least a substantial portion of which is subsequently discharged into a receptacle, said fresh fluid initially being contained in a source container, said method comprising the steps of:providing a fluid exchange system having a first conduit for communicating fresh fluid to the transmission and a second conduit for communicating used fluid from the transmission; coupling said fluid exchange system to the fluid circuit of the vehicle such that the used fluid flows from the transmission through the second conduit during an exchange procedure; coupling said fluid exchange system to the fluid circuit of the vehicle such that the fresh fluid flows to the transmission through the first conduit during the exchange procedure; and providing a movable component in fluid communication with both the used fluid and fresh fluid during the exchange procedure, said movable component being biased to control a fluid flow within the fluid exchange system prior to or during the exchange procedure, and wherein during the exchange procedure said fluid exchange system introduces a quantity of fresh fluid to the fluid circuit of the vehicle at a first flow rate as the used fluid is expelled from the fluid circuit through the second conduit at a second flow, said first flow rate being substantially matched to the second flow rate.